CN103576894B - Interactive image system and remote controller applicable to the interactive image system - Google Patents

Abstract

An interactive image system comprises an image system and a remote controller. The image system comprises at least one reference light source, a receiving unit and a host. The at least one reference light source emits light in a light emission pattern. The receiving unit is used for receiving packet data. The host controls the turn-on time of the at least one reference light source according to the packet data. The remote controller includes an image sensor and a transmitting unit. The image sensor receives light emitted by the at least one reference light source at a sampling period. The transmitting unit transmits the packet data corresponding to the sampling period of the image sensor.

Description

Interactive image system and remote controller applicable to the interactive image system

technical field

The invention relates to an interactive system, in particular to an interactive image system capable of unidirectionally synchronizing an image sensor and a reference light source and a remote controller suitable for the interactive image system.

Background technique

The interactive control mechanism provides a more user-friendly control method for users, and thus has been widely used in various multimedia systems, especially image display systems including display screens.

Referring to FIG. 1 , the interactive image system generally includes an image display 8 , an image sensor 9 and two light sources LED1 and LED2 . The image sensor 9 is usually arranged in the remote controller to acquire images including the light sources LED1 and LED2, and transmit control signals to the image display device 8 according to the position changes of the light sources LED1 and LED2 in the acquired images, The cursor 80 displayed therein is controlled.

In order to distinguish the light sources LED1 and LED2 from the ambient light source, the light source LED1 and LED2 will be turned on in a preset light emitting mode, so as to exclude the ambient light source that does not emit light in the preset light emitting mode.

However, in order for the image sensor 9 to correctly acquire the light emitted by the light sources LED1 and LED2, the sampling frequency of the image acquired by the image sensor 9 must be able to match the light-emitting periods of the light sources LED1 and LED2. It is known that an image can be obtained by increasing the sampling frequency of the image sensor 9, that is, so-called oversampling (oversampling), and analyzing the light emitting modes of the light sources LED1 and LED2 in the image obtained by oversampling to distinguish the ambient light source; another In this way, the image sensor 9 and the light sources LED1 and LED2 must be synchronized bilaterally. However, both of the above two methods will increase the occupied system resources.

In view of this, the present invention further proposes an interactive image system and a remote controller suitable for the interactive image system, which can complete the synchronization procedure between the image sensor and the reference light source by using one-way data transmission, thereby reducing the occupied system resource.

Contents of the invention

An object of the present invention is to provide an interactive image system and a remote controller applicable to the interactive image system that do not need a two-way synchronization procedure.

Another object of the present invention is to provide an interactive image system and a remote controller suitable for the interactive image system, which can perform a one-way synchronization process between the image sensor and the reference light source only according to the transmission packets of the remote controller.

The invention provides an interactive image system, which includes an image system and a remote controller. The image system includes at least one reference light source, a receiving unit and a host. The at least one reference light source emits light in a light emitting mode. The receiving unit is used for receiving packet data. The host controls the turn-on time of the at least one reference light source according to the packet data. The remote controller includes an image sensor and a transmitting unit. The image sensor receives the light emitted by the at least one reference light source with a sampling period. The transmitting unit transmits the packet data corresponding to the sampling period of the image sensor.

The present invention also provides a method for synchronizing an interactive image system, comprising the following steps: using an image sensor to acquire an image at a sampling period; using a transmitting unit to send packet data corresponding to the sampling cycle of the image sensor; using a receiving unit to receive the packet data and using the host to control the turn-on time of at least one reference light source according to the packet data, so as to synchronize the turn-on time and the sampling period.

The invention also provides an interactive image system, which includes an image system and a remote controller. The image system includes a reference light source, a receiving unit and a host. The reference light source emits light in a glow mode. The receiving unit is used for receiving packet data. The host controls the turn-on time of the reference light source according to the packet data. The remote controller includes a transmitting unit, an image sensor and a processing unit. The sending unit is used for sending the packet data. The image sensor receives the light emitted by the reference light source with a sampling period. The processing unit calculates a time ratio of the image sensor receiving the light emitted by the reference light source in the sampling period to obtain an offset time, and adds information of the offset time to the packet data.

The invention also provides a remote controller suitable for an interactive image system, which includes an image sensor and a transmitting unit. The image sensor acquires images at a sampling period. The sending unit sends out packet data at a sending time relative to the sampling period of the image sensor.

In one embodiment, the host estimates the opening time according to the processing time required to process the packet data; wherein, the processing time includes, for example, decompression processing time and/or decoding processing time.

In one embodiment, the transmitting unit corresponds to the rising edge of the sampling signal of the sampling period of the image sensor, the falling edge of the sampling signal, delaying the rising edge of the sampling signal for a preset time or delaying the falling edge of the sampling signal for a preset time to send out The packet data.

In one embodiment, when the transmitting unit transmits the packet data at the same time as the rising edge of the sampling signal, the host controls the turn-on time to be the time difference between the sampling period and the processing time after the processing time. When the transmitting unit sends out the packet data at the same time as the falling edge of the sampling signal, the host controls the turn-on time to be a time difference between one-half of the sampling period and the processing time after the processing time.

In one embodiment, when the transmitting unit delays the rising edge of the sampling signal for a preset time to send the packet data, the host controls the opening time to be after the processing time, the sampling period and the processing time and the preset time Time difference. The preset time may be, for example, compression processing time and/or encoding processing time. When the transmitting unit delays the falling edge of the sampling signal for a preset time to send the packet data, the host controls the turn-on time to be after the processing time, half of the sampling cycle and the processing time and the preset time Time difference.

In one embodiment, the image system further includes a memory unit for storing data related to the processing time and the sampling period in advance.

In the interactive image system and its synchronization method of the present invention, the host only needs to control or delay the turn-on time of the reference light source according to the packet data to synchronize with the rising edge of the sampling signal in the sampling period, and the image sensor can be completed. Synchronization procedure with this reference illuminant. The delay time can be determined by the image system side or the remote control side.

Description of drawings

Fig. 1 shows the schematic diagram of known interactive image system;

Fig. 2 shows the schematic diagram of the interactive image system of the embodiment of the present invention;

3A-3C are schematic diagrams showing the operation of the synchronization method of the interactive image system according to the first embodiment of the present invention;

Fig. 4 shows the flowchart of the synchronization method of the interactive image system according to the first embodiment of the present invention;

5A-5B show another schematic diagram of the operation of the synchronization method of the interactive image system according to the first embodiment of the present invention;

FIG. 6 shows a schematic diagram of the operation of the synchronization method of the interactive image system according to the second embodiment of the present invention;

FIG. 7 shows a flow chart of the synchronization method of the interactive image system according to the second embodiment of the present invention.

Explanation of reference signs

1 image system 10 display screen

11, 12 Reference light source 13 Receiving unit

14 host 15 memory unit

2 remote control 21 image sensor

22 processing unit 23 transmitting unit

S1 packet data T sampling period

Rs sampling signal rising edge Sd sampling period

FS sampling signal falling edge TFS falling edge time

ET, ET11, ET12 turn-on time Ld, Ld1, Ld2 light-emitting period

TRS rise time T0 preset time

T1 transfer time T2 processing time

Tr time ratio ΔT offset time

Ts sending time S31-S34, S41-S46 steps

8 image display device 80 cursor

9 image sensors.

detailed description

In order to make the above and other objects, features, and advantages of the present invention more apparent, a detailed description will be given below with reference to the accompanying drawings. In the description of the present invention, the same components are denoted by the same symbols, and will be described here first.

Referring to FIG. 2 , it shows a schematic diagram of an interactive image system according to an embodiment of the present invention. The interactive image system of this embodiment includes an image system 1 and a remote controller 2; wherein, the image system 1 can be, for example, an image system including a display screen 10 such as a television, a projection system, a computer system, a game machine system, etc., and the remote controller 2 It is used for the user (not shown) to control the image system 1 , for example, to control the application program executed by the image system 1 , the displayed image or the cursor action and so on. In other words, the user can realize the interactive operation with the image system 1 through the remote control 2 .

The image system 1 includes at least one reference light source (for example, shown here as two reference light sources 11, 12), a receiving unit 13 and a host 14; wherein, the receiving unit 13 can be arranged inside the host 14 or independent of it, and The host 14 can form the image system 1 together with the display device (such as a TV) or form two mutually coupled image systems 1 (such as a game machine system) with the display device. More specifically, the connections and configurations of the components in the image system 1 shown in FIG. 2 are only illustrative, and not intended to limit the present invention. It should be noted that FIG. 2 shows that the host 14 can be combined with the display device or be independent from it, but it does not mean that the display system 2 includes two hosts 14 at the same time. It must be noted that the at least one reference light source is not limited to two, and when multiple reference light sources are included, each reference light source emits light in a different light emitting mode, for example.

The at least one reference light source, such as the first reference light source 11 and the second reference light source 12 , can be a light emitting diode or a laser diode, preferably emitting light in a light emitting mode respectively. For example, as shown in FIG. 3A , the first reference light source 11 emits light in a "bright, dark, bright, dark..." light emitting mode, and the second reference light source 12 emits light in a "bright, bright, dark, bright, bright, dark..." light emitting mode. Thereby, the remote controller 2 can distinguish different reference light sources according to different lighting modes, and eliminate the interference of ambient light sources.

The receiving unit 13 is used to receive the packet data S ₁ from the remote controller 2; wherein, the packet data S ₁ can be realized by, for example, radio frequency transmission, infrared light transmission, bluetooth transmission or other known wireless transmission technologies, and there is no certain restrictions. In other words, the packet data S1 can be _a radio frequency signal, an infrared light signal, a bluetooth signal or other wireless transmission signals.

The host computer 14 _first identifies whether the packet data S1 is from the remote controller ₂ and the message included in the packet data S1, and when it is confirmed that the packet data S1 is from the remote controller ₂ , then control according to the packet data _S1 The enable time of the at least one reference light source, such as controlling the enable time ET 11 of the first reference light source ₁₁ and the enable time ET 12 of the second reference light source ₁₂ (refer to FIG. 3A ), and according to the packet data S _1. Control the operation of the image system 1, such as controlling cursor movement or screen update, etc.; where the host computer 14 can control the operation of the image system ₁ according to the packet data S1 sent by the remote controller 2, which is already known, The spirit of the present invention is that the host computer 14 controls the at least _one reference light source to synchronize the image acquisition of the remote control 2 according to the packet data S1.

The remote control 2 includes an image sensor 21 , a processing unit 22 and a transmitting unit 23 .

The image sensor 21 can be, for example, a CCD image sensor, a CMOS image sensor or other sensing devices for acquiring images, which acquire images with a sampling period to receive the light emitted by the at least one reference light source. For example, as shown in FIG. 3A , the image sensor 21 captures the light emitted by the first reference light source 11 and the second reference light source 12 at a sampling period T, for example.

The processing unit 22 can be, for example, a digital signal processor (DSP), which is used to process the image output by the image sensor 21 and calculate the change of the at least one reference light source in the image, such as coordinate change, displacement and/or direction vector Wait for the light source information about the at least one reference light source, perform compression processing and/or encoding processing on the light source information, and output it to the transmitting unit 23 .

In this embodiment, the transmitting unit 23 sends out the packet data S1 at the sending time T _S corresponding to the sampling period T of the image sensor ₂₁ ; wherein, the sending time T _S can be the rising edge R of the sampling signal of the sampling period T _S , the falling edge of the sampling signal F _S , delaying the rising edge R _S of the sampling signal for a preset time T ₀ or delaying the falling edge F _S of the sampling signal for a preset time T ₀ .

The processing unit 22 controls the transmitting unit 23 to send the packet data S ₁ corresponding to the rising edge R _S of the sampling signal of the sampling period T of the image sensor 21 at the sending time T _S (refer to FIG. 3A ); wherein, the transmitting unit 23 The packet data S ₁ is sent through wireless transmission technology.

Referring to FIGS. 3A to 3C , it shows a schematic diagram of the operation of the synchronization method of the interactive image system according to the first embodiment of the present invention; wherein, FIGS. 3A and 3B show that the host computer ₁₄ controls the computer after receiving the packet data S At least one reference light source emits light, and FIG. 3C shows that there is a time offset Toffset (T _offset ) between the turn-on time of the at least one reference light source and the sampling period T of the image sensor 21, that is, the at least one reference light source is in the receiving unit 13 Before receiving the packet data S1, it emits light in _a preset light emitting mode.

FIG. 3A shows that the image sensor 21 acquires an image during the sampling period Sd of the sampling period T; the transmitting unit 23 sends out the packet data S ₁ simultaneously with the rising edge Rs of the sampling signal; Dark..." light emitting mode and its light emitting period is, for example, L _d1 ; the second reference light source 22 emits light in a "bright, bright, dark, bright, bright, dark..." light emitting mode, and its light emitting period is, for example, L _d2 ; wherein, the sampling period Sd may be greater than, less than or equal to the light emitting period L _d1 , L _d2 . In this embodiment, it is assumed that the sending unit 23 sends the packet data S ₁ at the sending time Ts (which is equal to the rising edge time T _RS of the sampling signal rising edge Rs), and the receiving unit 13 receives the packet data after the sending time T ₁ packet data S ₁ , and the host computer 14 estimates the turn-on time ET 11 of the first reference light source 11 and the turn-on time ET ₁₂ of the second reference light source ₁₂ according to the processing time T ₂ of the packet data S ₁ ; The processing time T ₂ deduces the rise time T _RS and estimates the turn-on times ET ₁₁ , ET ₁₂ according to the sampling period T. In this embodiment, since the operating distance of the remote controller 2 is less than 1 km and the packet data S ₁ propagates at the speed of light, the transmission time T ₁ is extremely short and almost equal to zero, so the transmission time T ₁ can be ignored (ie T ₁ =0); the processing time T ₂ includes the decompression processing time and/or decoding processing time for the host 14 to process the packet data S ₁ . Preferably, the image system 1 further includes a memory unit 15 for storing information related to the processing time T ₂ and the sampling period T in advance. Thereby, the host 14 can control the turn _- on time according to the processing time T2 and the sampling period T, for example, after the processing time T2 of ET ₁₁ and ET ₁₂ , the time difference between the sampling period and the processing time ₍ TT ₂ ).

FIG. 3B shows that the image sensor 21 acquires images during the sampling period Sd of the sampling period T, and the transmitting unit 23 delays the rising edge time T _RS of the rising edge Rs of the sampling signal for a preset time T ₀ before sending out the packet at the sending time T _S Data _S1 . To simplify the diagram, FIG. 3B only shows the operation sequence of the first reference light source 11 and omits the operation sequence of the second reference light source 12 . The difference between FIG. 3B and FIG. 3A is that the processing unit 22 of the remote controller 2 does not control the transmitting unit 23 to send the packet data S ₁ synchronously with the rising edge Rs of the sampling signal after receiving the image data from the image sensor 2, but instead After the image data is post-processed (post-process), the packet data S ₁ is sent out after a preset time T ₀ , wherein the preset time T ₀ includes, for example, compression processing time and/or encoding processing time, but it does not constitute limit. Regardless of any post-processing performed by the processing unit 22 on the image data, the required processing time (the preset time T ₀ at this time) has been stored in the memory unit 15 of the image system 1 in advance. Similarly, since the transmission time T1 is negligible, the host ₁₄ can control the turn _{- on} time _ET11 to be after the processing time T2 according to the processing time T2, the preset time _T0 and the sampling period T. The time difference [T-(T ₂ +T ₀ )] between the sampling period and the processing time and the preset time.

Referring to FIG. 3C, since the operating frequency of the remote controller 2 and the system frequency of the image system 1 may be shifted due to the operation time, such as the delay time Toffset, the remote controller 2 in this embodiment corresponds to the The rising edge Rs of the sampling signal of the sampling period T of the image sensor 21 sends out the packet data S ₁ . The image system 1 already knows in advance the processing time T ₂ required to process the package data S ₁ , so the host computer 14 can use the processing time T ₂ attached to the package data S ₁ and the sending time of the package data S ₁ The relationship between Ts and the rising edge time T _RS of the rising edge Rs of the sampling signal (for example, the sending time Ts is equal to the rising edge time T _RS at this time) delays the turn-on time ET ₁₁ of the at least one reference light source to be synchronized with the sampling period T's sampling signal rising edge Rs. It must be noted that the sending time Ts of the packet data S ₁ in FIG. 3C can also be delayed by a preset time T ₀ from the rising edge Rs of the sampling signal as shown in FIG. 3B .

Referring to FIG. 4 , it shows the flow chart of the synchronization method of the interactive image system according to the first embodiment of the present invention, including the following steps: using the image sensor to acquire images with a sampling period (step S ₃₁ ); using the transmitting unit corresponding to the The rising edge of the sampling signal of the sampling period of the image sensor sends out packet data (step S ₃₂ ); using the receiving unit to receive the packet data (step S ₃₃ ); and using the host to control the turn-on time of at least one reference light source according to the packet data (step S 32 ); S ₃₄ ), to synchronize the turn-on time and the sampling period.

Referring to FIGS. 2 , 3A-3C and 4 at the same time, the detailed implementation of the synchronization method in the first embodiment of the present invention will be described next.

Step S ₃₁ : the image sensor 21 of the remote controller 2 acquires images at a fixed sampling period T, and each sampling period (sampling duration) is, for example, Sd.

Step S32: the processing unit 22 controls the transmitting unit 23 to transmit the packet data S ₁ corresponding to the sampling period T of the image sensor 21 . For example, in FIG. 3A, the transmitting unit 23 sends out the packet data S1 simultaneously with the rising edge _Rs of the sampling signal; in FIG. 3B, the transmitting unit 23 delays the rising edge Rs of the sampling signal for a preset time _T0 to send out the packet data S ₁ ; wherein, the preset time T ₀ is, for example, the compression processing time and/or encoding processing time performed by the processing unit 22 . In other embodiments, the compression processing and/or encoding processing may be implemented by the transmitting unit 23 .

Step S ₃₃ : After receiving the packet data S ₁ , the receiving unit 13 sends it to the host 14 for processing.

Step S ₃₄ : the host 14 controls the turn-on time of at least one reference light source according to the packet data S ₁ . For example, in FIG. 3A , the host 14 controls the opening time (ET ₁₁ , ET ₁₂ ) to be the time difference (TT ₂ ) between the sampling period T and the processing time T ₂ after the processing time T ₂ of processing the packet data S ₁ , Here it is assumed that the transmission time T ₁ =0; in FIG. 3B , the host 14 controls the opening time (ET ₁₁ ) to be the processing time T ₂ for processing the packet data S ₁ , the sampling period T and the processing time T ₂ and the time difference [T-(T ₂ +T ₀ )] of the preset time T ₀ , here it is assumed that the transmission time T ₁ =0; wherein, the processing time T ₂ includes, for example, decompression processing time and/or Decoding processing time.

The spirit of the first embodiment of the present invention is that the host 14 controls the turn-on time of the reference light source (such as ET ₁₁ and ET ₁₂ ) to be synchronized with the rising edge Rs of the sampling signal of the sampling period T according to the packet data S ₁ ; that is, , the image system 1 has pre-stored the processing time T ₂ required for processing the received packet data S ₁ or pre-stored the processing time T ₂ and the remote controller 2 sends the packet data S ₁ to delay the time of the image sensor 21 The sampling signal rising edge Rs preset time T ₀ , so when the host 14 receives the packet data S ₁ , it can invert the rising edge time T _RS of the sampling signal rising edge Rs and predict the next sampling signal rising edge Rs time of occurrence. When the at least one reference light source has not started to operate, the host 14 controls the at least one reference light source to start operating at the next rising edge time T _RS synchronously; if the at least _one reference light source has already started to operate, the host 14 Delay the turn-on time of the at least one reference light source to synchronize the rising edge Rs of the sampling signal of the sampling period T, for example, the rising edge Rs of the next sampling signal.

In another embodiment, the transmitting unit 23 can also transmit the packet data S ₁ corresponding to the falling edge F _S of the sampling signal. As shown in FIG. 5A , when the transmitting unit 23 sends the packet data _{S 1} at the same time as the falling edge of the sampling signal FS , the host 14 controls the opening time (ET ₁₁ , ET ₁₂ ) to be after the processing time T ₂ , 1/2 the time difference [T/2-T ₂ ] between the sampling period T/2 and the processing time T ₂ . As shown in FIG. 5B, when the transmitting unit 23 delays the falling edge of the sampling signal F _S for a preset time T ₀ to send the packet data S ₁ , the host control 14 the opening time (ET ₁₁ ) is the processing time T ₂ Afterwards, the time difference [T/2-(T ₀ +T ₂ )] of one-half the sampling period T/2, the processing time T ₂ and the preset time T ₀ ; wherein, the implementation of Fig. 5A and 5B The example assumes that the transmission time T ₁ is zero.

Referring to Figures 2 and 6 at the same time, Figure 6 shows a schematic diagram of the operation of the synchronization method of the interactive image system according to the second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that in the second embodiment, the remote controller 2 determines the turn-on time of the reference light source. Furthermore, the second embodiment preferably includes only one reference light source.

The interactive image system of the second embodiment also includes an image system 1 and a remote controller 2 .

The image system 1 includes a reference light source (such as one of the first reference light source 11 or the second reference light source 12 ), a receiving unit 13 and a host 14 . The reference light source emits light in a light-emitting mode, for example, FIG. 6 shows that the reference light source emits light in a light-emitting mode of “bright dark bright dark . . . ” (ie, the first reference light source 11 ). The receiving unit 13 is used for receiving the packet data S ₁ . As described in the first embodiment, the packet data S ₁ can be transmitted using a known wireless transmission technology. The host ₁₄ controls the turn-on time ET of the reference light source according to the packet data S1, and the content _of the packet data S1 is determined by the remote controller 2.

The remote control 2 includes an image sensor 21 , a processing unit 22 and a transmitting unit 23 . The transmitting unit 23 is controlled by the processing unit 22 to transmit the packet data S ₁ . The image sensor 21 receives the light emitted by the reference light source in a sampling period T; in this embodiment, the packet data S ₁ can be sent at any time in the sampling period T. The processing unit 22 calculates the time ratio Tr of the image sensor 21 receiving the light emitted by the reference light source in the sampling period T (for example, according to the ratio of its average brightness) to obtain the offset time ΔT, and calculates the offset time The information of ΔT is added to the package data S ₁ , for example, it can be added to the header or data of the package data S ₁ , and there is no specific limitation. When the offset time ΔT is equal to zero, there is no phase difference between the sampling period Sd of the image sensor 21 and the lighting period L _d of the reference light source; when the offset time ΔT is not equal to zero, the sampling period Sd of the image sensor 21 and the reference light source There is a phase difference between L _d during the light emitting period and must be adjusted.

In the second embodiment, each lighting period Ld of the reference light source is preferably equal to each sampling period _Sd of the image sensor 21, so that the processing unit 22 can easily calculate the time ratio Tr to obtain the offset time ΔT. When the host 14 receives that the offset time ΔT is not equal to zero, it delays the turn-on time ET of the reference light source to be synchronized with the rising edge _Rs of the sampling signal of the sampling period T according to the information attached to the packet data S1. In other words, the host 14 delays the turn-on time ET of the reference light source by the offset time ΔT; that is, the reference light source maintains the current operating state before the controlled turn-on time ET.

In summary, FIG. 7 shows a flow chart of a synchronization method for an interactive image system according to the second embodiment of the present invention, which includes the following steps: using a reference light source to emit light in a light-emitting mode (step S ₄₁ ); using an image sensor to emit light in a sampling period Acquiring an image (step S ₄₂ ); using the processing unit to calculate the time ratio of the image sensor receiving the light emitted by the reference light source in the sampling period to obtain the offset time (step S ₄₃ ); Packet data of time-shifting information (step S ₄₄ ); receive the packet data by the receiving unit (step S ₄₅ ); and use the host to control the turn-on time of the reference light source according to the packet data (step S ₄₆ ). The detailed implementation manner of each step of the second embodiment has been recorded in FIG. 6 and related descriptions, so details are not repeated here.

It must be noted that the remote controller 2 does not include the information of adjusting the turn-on time of the at least one reference light source in the packet data S ₁ sent every time. Adjust the frequency to send.

It must be noted that the corresponding relationship between the light-emitting mode of the reference light source and the timing signal in the above-mentioned embodiments is only exemplary, and its purpose is only for illustration and not for limiting the present invention.

In each embodiment of the present invention, there is no need to perform a two-way synchronization procedure between the image system 1 and the remote controller 2, and the synchronization operation can be completed only according to the one-way transmission information sent by the remote controller 2, which can effectively simplify the synchronization procedure and save system resource.

To sum up, the synchronization method of the known interactive image system needs to use an oversampling mechanism or a two-way synchronization mechanism, thus increasing the occupied system resources. The present invention also proposes an interactive image system and a remote controller suitable for the interactive image system (Figure 2), which can complete the synchronization procedure between the image sensor and the reference light source according to the one-way transmission information of the remote controller, and can Reduce the sampling frequency of the image sensor.

Although the present invention has been disclosed with the foregoing embodiments, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field of the present invention can make various changes without departing from the spirit and scope of the present invention. with modification. Therefore, the scope of protection of the present invention should be defined by the scope of the appended patent application.

Claims (14)

1. An interactive image system, the interactive image system comprising: Image system, the image system includes: At least one reference light source repeatedly emits light in a light-emitting mode, the light-emitting mode includes at least one light-emitting period and at least one non-light-emitting period; a receiving unit for receiving packet data; and a host, controlling the turn-on time of the lighting mode of the at least one reference light source according to the packet data; and remote control, the remote control includes: an image sensor that receives light emitted by the at least one reference light source with a sampling period; and a transmitting unit that transmits the packet data to the receiving unit relative to the sampling period of the image sensor to offset the turn-on time of the lighting mode of the at least one reference light source, Wherein, the at least one reference light source repeatedly emits light in the light emitting mode before the receiving unit receives the packet data sent by the transmitting unit of the remote controller, and After the receiving unit receives the packet data sent by the transmitting unit of the remote controller, the host delays the turn-on time of the next lighting mode of the at least one reference light source. 2. The interactive image system according to claim 1, wherein the emitting unit delays the rising edge of the sampling signal, the falling edge of the sampling signal, and the rising edge of the sampling signal relative to the sampling period of the image sensor by a preset period. Setting time or delaying the falling edge of the sampling signal for a preset time to send the packet data. 3. The interactive image system according to claim 2, wherein the host estimates the turn-on time of the next lighting mode according to the processing time of the packet data. 4. The interactive graphics system of claim 3, wherein the processing time comprises decompression processing time and/or decoding processing time. 5. The interactive image system according to claim 3 or 4, wherein when the transmitting unit sends out the packet data at the same time as the rising edge of the sampling signal, the host controls the opening time to be the processing time The time difference between the sampling period and the processing time. 6. The interactive image system according to claim 3 or 4, wherein when the transmitting unit sends out the packet data at the same time as the falling edge of the sampling signal, the host controls the opening time for the processing The time difference between one-half of the sampling period and the processing time after time. 7. The interactive image system according to claim 3 or 4, wherein when the transmitting unit delays the rising edge of the sampling signal for a preset time to send the packet data, the host controls the opening time to be the A time difference between the sampling period after the processing time, the processing time, and the preset time. 8. The interactive image system according to claim 3 or 4, wherein when the transmitting unit delays the falling edge of the sampling signal for a preset time to send the packet data, the host controls the opening time to be the The time difference between one-half of the sampling period after the processing time, the processing time and the preset time. 9. The interactive graphics system according to claim 3, wherein the interactive graphics system further comprises a memory unit for storing the processing time and the sampling period in advance. 10. The interactive image system according to claim 2, wherein the preset time is compression processing time and/or encoding processing time. 11. The interactive image system according to claim 1, wherein the host computer delays the turn-on time of the next lighting mode of the at least one reference light source according to the packet data to be synchronized with that of the sampling period Sample signal rising edge. 12. A remote control for an interactive image system, the remote control comprising: The image sensor receives the light emitted by the reference light source included in the interactive image system at a sampling period to obtain an image; and The sending unit sends out the packet data at a sending time relative to the sampling period of the image sensor to offset the start time of the lighting mode of the reference light source, wherein, The light-emitting mode includes at least one light-emitting period and at least one non-light-emitting period, The reference light source repeatedly emits light in the light emitting mode before the transmitting unit sends the packet data at the sending time, and After the sending unit sends the packet data at the sending time, delaying the turn-on time of the next lighting mode of the reference light source according to the packet data. 13. The remote controller according to claim 12, wherein the packet data is an infrared light signal. 14. The remote controller according to claim 12, wherein the sending time is a preset of the rising edge of the sampling signal, the falling edge of the sampling signal, the delay of the rising edge of the sampling signal or the falling edge of the sampling signal of the sampling period time.