CN103475816A - Self-timer control method and device - Google Patents

Abstract

The invention relates to the technical field of photography control, in particular to a self-timer control method, which does not directly time after receiving a self-timer instruction, but sets the time when judging that human face characteristics exist in a view image and photographic equipment is in a static state, and requires to keep the human face characteristics in the view image and the photographic equipment in the static state in the calculation process.

Description

A Selfie control method and device

technical field

The present invention relates to the technical field of photography control, in particular to a Selfie control method. The method is accomplished by establishing a functional module framework and controlling the computer system by computer program instructions.

Background technique

Selfie function, the English scientific name is Self-timer, which refers to taking time-lapse photos according to the photographer's own settings when taking pictures. This function is mainly for the convenience of photographers who want to shoot their own images when using digital cameras and other photographic equipment alone. With the rapid popularization of mobile phones, tablet computers and other digital products with photography equipment, photography has become an extremely life-like thing. People can take pictures anytime and anywhere in their lives. Naturally, self-portraits have become more frequent. The self-portrait function It has become a commonly used function, and the experience effect of the self-timer function affects the user's evaluation of the experience of photography equipment and even digital products.

However, the self-timer function of current photographic equipment basically adopts a simple delay for a period of time and then takes a self-timer. This method has many shortcomings. The picture of the photographer may not contain the photographer's own image or the image may be blurred, resulting in a failure to take a selfie.

For this reason, the industry proposes to increase the face recognition step after the end of the timing, such as the photographic device and its self-timer method disclosed in the patent document CN101646018A, the method acquires an image after the self-timer delay ends and detects whether there is a human face in the image And judge whether the face moves, so as to decide whether to take a photo. Although the above method can reduce the failure rate of taking photos, there are still many deficiencies: (1) Using two consecutive images to judge whether the face moves, this judgment method may be due to the time interval between the two images The shooting equipment just shakes to the original position, resulting in misjudgment, resulting in blurred photographing effect; (2) in the prior art, when the general photographing equipment automatically enters the countdown stage after obtaining the self-timer command, the photographer must complete the adjustment within the time period. Shooting actions (including moving to a suitable shooting location, posing the action and stilling, etc.), the time flexibility is not strong, and the photographer needs a high degree of precision to grasp the time to achieve it, which brings a certain degree of difficulty to the self-timer, and also reduces the self-timer. Success rate; (3) During the self-timer process, the timing time cannot be adjusted after the self-timer command is issued. If the self-timer needs to adjust the time due to unexpected circumstances, you must give up this self-timer and re-enter the self-timer command manually. The intelligence of the self-timer is not high , seriously affecting the user experience.

Contents of the invention

The purpose of the present invention is to provide a Selfie control method with a high success rate and good experience effect by avoiding the disadvantages of the above-mentioned prior art.

The object of the present invention is achieved through the following technical solutions:

A selfie control method is provided, including:

Timing start steps: get the current viewfinder image and analyze whether there are facial features in the viewfinder image, start the sensor to judge whether the current photographic equipment is in a static state, if there are facial features in the current viewfinder image and the photographic equipment is in a stationary state, start timing step;

Timing step: start the timer and automatically image when the timing is completed. During the timing process, it is detected in real time whether there are facial features in the viewfinder image and whether the photographic equipment is still. If there are no facial features in the viewfinder image or the photographic equipment is not stationary, it will be interrupted. Timing and jump to the timing start step;

Wherein, the timing start step includes a state detection step: start the gyroscope to detect the angular deflection of the photographic device and/or activate the acceleration sensor to detect the displacement of the photographic device, if the angular deflection and/or the displacement are less than a preset threshold, Then it is determined that the photography device is currently in a static state.

Wherein, the timing start step includes a reminder step: when the timer is started, a reminder is issued, and the reminder includes a sound reminder and/or a screen display reminder.

Wherein, the timing starting device includes a face recognition step: judging whether there is an overall feature of the human face or a partial feature of the human face in the viewfinder image, and the local feature of the human face includes human eye features, if there is an overall feature of the human face in the viewfinder image Or the local features of the human face, it is determined that there are human face features in the viewfinder image.

A selfie control device is also provided, comprising:

Timing start device: acquire the current viewfinder image and analyze whether there are facial features in the viewfinder image, start the sensor to judge whether the current photographic equipment is in a static state, if there are human face features in the current viewfinder image and the photographic equipment is in a stationary state, trigger timing device;

Timing device: Start the timer for timing, and automatically image when the timing is completed. During the timing process, it is detected in real time whether there are facial features in the viewfinder image and whether the photographic equipment is still. If there are no facial features in the viewfinder image or the photographic equipment is not stationary, then Interrupt timing and jump to timing start device;

Wherein, the timing start device includes a state detection device: start the gyroscope to detect the angular deflection of the photographic equipment and/or activate the acceleration sensor to detect the displacement of the photographic equipment, if the angular deflection and/or the displacement are less than a preset threshold, Then it is determined that the photography device is currently in a static state.

Wherein, the timer starting device includes a reminder device: when the timer is started, a reminder is issued, and the reminder includes a sound reminder and/or a screen display reminder.

Wherein, the timing starting device includes a face recognition device: judging whether there are overall features of the human face or partial features of the human face in the viewfinder image, and the local features of the human face include human eye features. Or the local features of the human face, it is determined that there are human face features in the viewfinder image.

Beneficial effects of the present invention: the present invention provides a self-timer control method, the method enters the timing state only when it is detected that the framing image includes human face features and the photographic equipment is in a static state, since the sensor is used to judge whether the photographic equipment moves, Therefore, it is possible to effectively avoid blurring of the shooting effect caused by shaking of the photographic equipment during the shooting process. At the same time, since the detection of human face features in the viewfinder image and the photographic equipment is in a static state are used as the conditions for starting timing, that is, when the photographer is basically ready (at least already in place) to start the timing, so the actual delay time (the time period between inputting the selfie instruction and the final shooting) will be flexibly adjusted according to the preparation time of the selfie taker. The time flexibility is stronger, which effectively reduces the difficulty of selfies and improves the success rate of selfies ; During the timing process, it is detected in real time whether there are human face features in the viewfinder image and whether the photographic equipment is still, and based on this, it is judged whether to re-time. This can ensure that the viewfinder image has a stable period of time before shooting, and further guarantee the final shooting quality. On the other hand, during the shooting process, if the photographer needs to adjust the time due to emergencies, etc., he only needs to leave the viewfinder or shake the shooting device to make the shooting program return to the timing start step, and then restart the timing. The photographer does not need to give up this time. Taking a selfie and re-entering the selfie instruction manually can effectively improve the intelligence of the selfie, improve the user experience and increase the success rate of shooting.

Detailed ways

The present invention is further described in conjunction with the following examples.

A specific implementation of the Selfie control method of the present invention includes:

Step A: After receiving the instruction to start the Selfie function, obtain the current framing image and analyze whether there are facial features in the framing image, and if so, go to the next step;

Step B: Start the sensor to judge whether the current photography equipment is in a static state, if so, go to the next step;

Step C: Start the timer for timing. During the timing, detect in real time whether there are facial features in the viewfinder image and whether the photographic equipment is still. If there are no facial features in the viewfinder image or the photographic equipment is not stationary, stop timing and jump to step A;

Step D: When the timing ends, the image is automatically formed, and the shooting is completed.

It should be noted that the order of step A and step B can be reversed.

In step A, the method of identifying facial features is to judge whether there are overall facial features or local facial features in the viewfinder image, and the local facial features can be human eye features, mouth features, etc. If there is an overall feature of the human face or a partial feature of the human face in the viewfinder image, it is judged that there is a human face feature in the viewfinder image. Adding the recognition of the local features of the face can prevent some photographers who just want to take pictures of their own partial areas of the face, but the photography equipment cannot take selfies because they cannot detect the overall features of the face.

In step B, the method for judging whether the photographic device is in a static state is: start the gyroscope to detect the angular deflection of the photographic device and start the acceleration sensor to detect the displacement of the photographic device, if both the angular deflection and the displacement are less than the preset threshold , it is judged that the photography device is currently in a static state. Since the photographic equipment cannot be absolutely static, by detecting the angular deflection and displacement of the photographic equipment, if the angular deflection and displacement of the photographic equipment are both smaller than the threshold, it can be explained that the photographic equipment is moving within a very small range or It is deflected in a very small angle, which does not affect the clarity of the shooting effect, and can be used for shooting. Of course, only the gyroscope or the acceleration sensor may be enabled for detection, which will not be repeated here.

In step C, when the timing starts, the photography device can issue a corresponding reminder action, for example, a sound reminder or a light reminder at the moment the timing starts, or display the remaining time of timing on the display screen of the photography device. The method of reminder is technical in the art Personnel can design in combination with existing technologies.

The above method enters the timing state only when it detects that the framing image includes human face features and the photographic equipment is in a static state. Since the sensor is used to judge whether the photographic equipment is moving, it can effectively avoid the blurred shooting effect caused by the shaking of the photographic equipment during the shooting process. At the same time, since the detection of human face features in the viewfinder image and the photographic equipment is in a static state are used as the conditions for starting the timing, that is, the timing is started when the photographer is basically ready (at least in place), so the actual delay time (starting the self-timer) The time period between the command and the final shooting) will be flexibly adjusted according to the preparation time of the self-timer, and the time flexibility is stronger, which effectively reduces the difficulty of self-timer and improves the success rate of self-timer; further, during the timing process, it is detected in real time whether there is Whether the facial features and the photographic equipment are still and judge whether to re-time based on this can ensure that the viewfinder image has a stable period of time before shooting, and further ensure the final shooting quality. When you need to adjust the time due to unexpected circumstances, you only need to leave the viewfinder or shake the shooting device to make the shooting program return to the timing start step, and then restart the timing. The photographer does not need to give up this self-timer and re-enter the self-timer command manually, which effectively improves the self-timer. Intelligent, improve user experience and improve shooting success rate.

In the method given in this paper, all or part of the steps can be completed by establishing a functional module framework and controlling the computer system by computer program instructions. These computer program instructions are stored on a computer readable storage medium.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (8)

1. an auto heterodyne control method is characterized in that comprising:

Timing setting up procedure: obtain current viewfinder image and analyze in viewfinder image whether have face characteristic, priming inductor judges whether current photographic equipment remains static, if exist face characteristic and photographic equipment to remain static in current viewfinder image, enter the timing step;

Timing step: start the timer timing, automated imaging when timing completes, in timing course, in real-time detection viewfinder image, whether exist face characteristic and photographic equipment whether static, if do not have face characteristic or photographic equipment nonstatic in viewfinder image, interrupt timing and jump to the timing setting up procedure.

2. a kind of auto heterodyne control method as claimed in claim 1, it is characterized in that: described timing setting up procedure comprises the state-detection step: start gyroscope and detect the angular deflection amount of photographic equipment and/or the displacement that Acceleration of starting degree transducer detects photographic equipment, if angular deflection amount and/or displacement are less than default threshold value, judge that photographic equipment is current to remain static.

3. a kind of auto heterodyne control method as claimed in claim 1, it is characterized in that: described timing setting up procedure comprises the prompting step: send prompting during timer initiation, described prompting comprises that sound prompting and/or screen display remind.

4. a kind of auto heterodyne control method as claimed in claim 1, it is characterized in that: described timing starting drive comprises the recognition of face step: judge in viewfinder image whether have people's face global feature or people's face local feature, described people's face local feature comprises human eye feature, if have people's face global feature or people's face local feature in viewfinder image, judge in viewfinder image and have face characteristic.

5. an auto heterodyne control device is characterized in that comprising:

Timing starting drive: obtain current viewfinder image and analyze in viewfinder image whether have face characteristic, priming inductor judges whether current photographic equipment remains static, if exist face characteristic and photographic equipment to remain static in current viewfinder image, the triggering timing device;

Time set: start the timer timing, automated imaging when timing completes, in timing course, in real-time detection viewfinder image, whether exist face characteristic and photographic equipment whether static, if do not have face characteristic or photographic equipment nonstatic state in viewfinder image, interrupt timing and jump to the timing starting drive.

6. a kind of auto heterodyne control device as claimed in claim 5, it is characterized in that: described timing starting drive comprises condition checkout gear: start gyroscope and detect the angular deflection amount of photographic equipment and/or the displacement that Acceleration of starting degree transducer detects photographic equipment, if angular deflection amount and/or displacement are less than default threshold value, judge that photographic equipment is current to remain static.

7. a kind of auto heterodyne control device as claimed in claim 5, it is characterized in that: described timing starting drive comprises alarm set: send prompting during timer initiation, described prompting comprises that sound prompting and/or screen display remind.

8. a kind of auto heterodyne control device as claimed in claim 5, it is characterized in that: described timing starting drive comprises face identification device: judge in viewfinder image whether have people's face global feature or people's face local feature, described people's face local feature comprises human eye feature, if have people's face global feature or people's face local feature in viewfinder image, judge in viewfinder image and have face characteristic.