CN107800950B - Image acquisition method - Google Patents

Abstract

The invention relates to an image acquisition method, which comprises the following steps: providing an image capturing device, starting an image capturing action, detecting a first axial acceleration reading, a second axial acceleration reading, a third axial acceleration reading and image quality, and judging whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchanged or not. If the judgment result is negative, the previous detection step is executed again, and if the judgment result is positive, the next step is executed: and judging whether the image quality is less than a preset value. If the judgment result is negative, the first two detection and judgment steps are executed again, and if the judgment result is positive, the next step is executed: ending the image capturing operation. Therefore, the automatic ending of image capturing can be achieved without the user pressing any button.

Description

Image capture method

technical field

The present invention relates to an image capture method, in particular to an image capture method with at least the function of automatically ending the image capture.

Background technique

Due to the increasing dependence of modern people on electronic products, consumers' requirements for user experience brought by electronic products are gradually increasing. When scanning a traditional handheld image capture device, in addition to pressing the switch button to start the image capture, it is also necessary to press the switch button to end the image capture when the image capture is to be ended, which imposes many restrictions on the user. Therefore, it is quite inconvenient for users.

In particular, the pressing action performed when the image capture is to be ended is most likely to cause the image capture to fail or the captured images to be discontinuous. For example, when the user presses the button too much and causes the handheld image capture device to move, the image capture may fail or the captured image may be fragmented or discontinuous. or accidentally touch the switch button during image capture, it is possible to repeat the image capture operation for many times, but no usable image can be obtained. In addition, after using the handheld image capture device for a long time, the switch button may be pressed for a long time, which may cause poor contact, and the life of the switch button has been tested.

At the same time, in order to avoid the above problem of causing the hand-held image capture device to move, it is often seen that when the image capture is completed, the user particularly firmly fixes the hand-held image capture device with one hand, and presses the switch button with the other hand. This ensures that the image capture action is done correctly, which obviously results in a poor user experience.

Therefore, how to develop an image capture method with at least the function of automatically ending the image capture, which can simplify the operation of image capture and prolong the life of the switch button, and at the same time bring an excellent user experience, remains to be seen at present. solved problem.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide an image capturing method to solve and improve the problems and disadvantages of the prior art.

Another object of the present invention is to provide an image capture method, by detecting the readings and image quality of the three-axis acceleration, and judging that the readings are interchanged and the image quality is less than a preset value, the image capturing operation is terminated, The image capture operation can be automatically terminated, and the user does not need to fix the image capture device or press any buttons, so that the user experience is effectively improved, and at the same time, the service life of the switch element installed in the image capture device can be further extended. .

Another object of the present invention is to provide an image capture method, which can be detected by a three-axis acceleration sensor and an optical mouse component at the same time, and further determine its value, so as to accurately determine the state of the image capture device, and then automate Start or end the image capture action quickly, and reduce the occurrence of misjudgment.

To achieve the above object, a preferred embodiment of the present invention is to provide an image capture method, including the steps of: (a) providing an image capture device; (b) starting an image capture action; (c) detecting a first axial acceleration reading, a second axial acceleration reading, a third axial acceleration reading and an image quality; (d) determining the first axial acceleration reading, the second axial acceleration reading and the first axial acceleration reading Whether the readings of any two of the three-axis acceleration readings are interchanged; (e) determine whether the image quality is less than a preset value; and (f) end the image capturing operation; wherein, when the determination result of step (d) If yes, after the step (d), execute the step (e), and when the judgment result of the step (d) is no, repeat the step (c) after the step (d), when the step (d) is repeated. If the judgment result of (e) is yes, then the step (f) is executed after the step (e), and when the judgment result of the step (e) is no, the step (e) is re-executed after the step (e). c).

The present invention provides an image capture method, which can automatically end the image capture operation by detecting the readings and image quality of the three-axis acceleration, and judging that the readings are interchanged and the image quality is less than a preset value. In the image capturing action, the user does not need to fix the image capturing device or press any buttons, so that the user experience is effectively improved, and at the same time, the service life of the switch element installed in the image capturing device can be further extended. At the same time, through the simultaneous detection of the three-axis acceleration sensor and the optical mouse component, and further judging its value, the state of the image capture device can be accurately judged, and then the image capture action can be automatically started or stopped, and misjudgment is reduced. situation occurs.

Description of drawings

FIG. 1 shows an image capturing method according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram showing the image capture of the medium and the three axes by the image capture device of the present invention.

FIG. 3 is a block diagram showing the structure of the image capture device of the present invention.

FIG. 4A is a front view showing that the image capturing device of the present invention is placed on a medium.

FIG. 4B is a front view showing the image capture device of the present invention being lifted away from the medium.

FIG. 5 is a graph showing the image quality-time correspondence of media A, media B and media C made of different materials under the same operating conditions.

FIG. 6 is a detailed flowchart showing steps S100 to S200 of an image capturing method according to an embodiment of the present invention.

FIG. 7 is a detailed flowchart showing steps S100 to S200 of an image capturing method according to another embodiment of the present invention.

FIG. 8 is a detailed flowchart showing steps S100 to S200 of an image capturing method according to another embodiment of the present invention.

Description of reference numbers:

1: Image capture device

10: Control unit

11: Image capture unit

12: Optical Mouse Assembly

13: Three-axis acceleration sensor

14: Switching element

2: Media

S100, S200, S300, S400, S500, S600: Steps

S125, S150: Steps

S135, S175: Steps

S110: Steps

Detailed ways

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different aspects without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially intended to be used to illustrate, not to The framework is intended to limit the invention.

Please refer to FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4A , FIG. 4B and FIG. 5 . 1 is a schematic diagram showing an image capture method according to a preferred embodiment of the present invention, FIG. 2 is a schematic diagram showing the image capture of a medium and three axes by an image capture device of the present invention, and FIG. 3 is an image capture diagram of the present invention A block diagram of the structure of the device, FIG. 4A is a front view showing the image capture device of the present invention placed on a medium, FIG. 4B is a front view showing the image capture device of the present invention being lifted away from the medium, and FIG. 5 is a front view showing different materials Image quality-time correspondence diagram of the produced media A, B and C under the same operating conditions. As shown in FIG. 1 to FIG. 5 , the image capturing method of the present invention is suitable for capturing images from the medium 2 , and includes at least the following steps: First, as shown in step S100 , an image capturing device 1 is provided, wherein the image The capture device 1 can be, for example, but not limited to, a hand-held scanner, and preferably includes a control unit 10 , an image capture unit 11 , an optical mouse assembly 12 and a three-axis acceleration sensor 13 , wherein the three-axis The directional acceleration sensor 13 can be a triaxial gyroscope.

Next, as shown in step S200, the image capturing operation is started. Next, as shown in step S300, the first axial acceleration reading, the second axial acceleration reading, the third axial acceleration reading and the image quality are detected, wherein the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading The three-axis acceleration readings are the acceleration readings in the X-axis, Y-axis and Z-axis respectively, but not limited to this, and the detected image quality is preferably converted into a numerical value by the control unit 10 The numerical value, however, is not limited to this, and can also be digitized by the optical mouse element 12 itself.

Next, as shown in step S400, it is determined whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchangeable. When the determination result of step S400 is yes, step S500 is executed after step S400, and when the determination result of step S400 is no, the detection step of step S300 is re-executed after step S400. Since the user rotates the image capture device 1 away from the medium 2 during operation (as shown in FIG. 4A and FIG. 4B ), the acceleration readings of any two axes will be exchanged, so it can be judged whether the user wants to End the image capture operation.

For example, when the image capture device 1 is rotated and the X-axis acceleration readings and the Y-axis acceleration readings are exchanged, the determination result of step S400 is yes, and the exchanged readings are the first-axis acceleration readings and the second-axis acceleration readings direction acceleration reading; when the image capture device 1 is rotated and the Y-axis acceleration reading and the Z-axis acceleration reading are interchanged, the judgment result of step S400 is yes, and the readings exchanged are the second-axis acceleration reading and the third-axis acceleration reading to the acceleration reading.

Next, as shown in step S500, it is determined whether the image quality is less than a preset value. Specifically, this step S500 is to determine whether the digitized value of the image quality after being digitized by the control unit 10 is less than a preset value (ie, a preset percentage), such as but not limited to 30% (as shown in FIG. 5 ), The value of the default value is preferably detected when the image capture device 1 of the present invention captures images from media 2 made of a variety of different materials under the same operating conditions and behaviors and leaves the media It can be seen from FIG. 5 that when the image capture device 1 leaves the media A, media B or media C, the image quality is all lower than 30%, and the image quality ratio depends on the analysis of the optical mouse component 12 Ability to adjust. When the determination result of step S500 is yes, step S600 is executed after step S500, that is, the image capturing operation is ended, and when the determination result of step S500 is no, after step S500, the detection of steps S300 and S400 is re-executed. Measurement and judgment steps.

Through the above-mentioned image capturing method of the present invention, the user does not need to fix the image capturing device or press any button to automatically end the image capturing action, so that the user experience is effectively improved, and the installation on the image can be further extended. The service life of the switching elements of the capture device.

According to the concept of the present invention, the step S200 of the image capture method of the present invention is preferably realized by the image capture unit 11, the step S300 is preferably realized by the triaxial acceleration sensor 13, and the step S400, the step S500 and the step S600 are relatively Preferably, it is realized by the control unit 11, but it is not limited to this. Specifically, the image capture device 1 of the present invention includes a control unit 10 , an image capture unit 11 , an optical mouse assembly 12 and a triaxial acceleration sensor 13 as described above. The image capture unit 11 is connected to the control unit 10 for image capture, the optical mouse assembly 12 is connected to the control unit 10 to detect image quality, and a three-axis acceleration sensor 13 is connected to the control unit 10 for detecting the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading.

In the related art, if only the optical mouse element 12 is used to judge the image quality, it may happen that the image quality is too low due to the folds of the media 2 or the position corresponding to the optical mouse element 12 is suspended, which may lead to errors. sentence. In this regard, the present invention uses the triaxial acceleration sensor 13 and the optical mouse component 12 to detect at the same time, and further determines the numerical value thereof, so as to accurately determine the state of the image capture device 1, and then automatically terminate the image capture. action, and reduce the occurrence of misjudgment.

Further, in addition to the above-mentioned embodiments, the present invention also has an image capture method with the functions of automatically starting and ending image capture at the same time. Please refer to FIG. 6 , FIG. 7 and FIG. 8 , wherein FIG. 6 is a detailed flowchart showing steps S100 to S200 of an image capturing method according to an embodiment of the present invention, and FIG. 7 is an image capturing method according to another embodiment of the present invention. 8 is a detailed flowchart of steps S100 to S200 of an image capturing method according to another embodiment of the present invention. As shown in FIG. 6 , FIG. 7 and FIG. 8 , the image capturing method of the present invention includes several possible embodiments for starting image capturing, that is, starting image capturing.

In some embodiments, the image capturing method of the present invention further includes step S125 and step S150 before step S200. The step S125 is to detect the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading. Step S150 is to determine whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchangeable. When the judgment result of step S150 is yes, step S200 is executed after step S150 , and when the judgment result of step S150 is no, step S125 is executed again after step S150 . In other words, the image capture method of the present invention can determine whether to start the image capture operation by detecting the three-axis acceleration readings.

For example, when the image capture device is rotated and the determination result of step S150 is Yes, the reading exchange can be the first axial acceleration reading and the second axial acceleration reading or the second axial acceleration reading and the third axial acceleration reading. acceleration reading.

In some embodiments, the image capturing method of the present invention further includes step S135 , step S150 and step S175 before step S200 . The step S135 is to detect the first axial acceleration reading, the second axial acceleration reading, the third axial acceleration reading and the image quality. Step S150 is to determine whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchangeable. Step S175 is to determine whether the image quality is less than a preset value. When the judgment result of step S150 is YES, step S175 is executed after step S150, and when the judgment result of step S150 is NO, step S135 is re-executed after step S150, and when the judgment result of step S175 is YES, step S175 After that, step S200 is executed, and when the judgment result of step S175 is NO, step S135 is executed again after step S175. In short, when the image capture method of the present invention determines that the readings are interchanged and the image quality is lower than the preset value, the means of ending the image capture operation can also be used to determine whether to start the image capture operation. The process steps and principles have been described. It has been described in the foregoing embodiments, so it will not be repeated here. It should be particularly noted that, when the image capture device of the present invention is rotated to a horizontal position, a vertical position or an oblique position to perform image capture operation, and then restored by reverse rotation, the judgment results of step S150 and step S400 are both yes, And the two exchanged readings in step S150 and step S400 are the same.

Of course, in other embodiments, before step S200, the image capture method of the present invention can also start the image capture action with the process steps of pressing the switch element as shown in step S110, and the automatic method only uses To control the end of the image capture action, but not limited to this.

To sum up, the present invention provides an image capturing method, by detecting the readings and image quality of the three-axis acceleration, and judging that the readings are interchanged and the image quality is less than a predetermined value, the image capturing operation is terminated, The image capture operation can be automatically terminated, and the user does not need to fix the image capture device or press any buttons, so that the user experience is effectively improved, and at the same time, the service life of the switch element installed in the image capture device can be further extended. . At the same time, through the simultaneous detection of the three-axis acceleration sensor and the optical mouse component, and further judging its value, the state of the image capture device can be accurately judged, and then the image capture action can be automatically started or stopped, and misjudgment is reduced. situation occurs.

Even though the present invention has been described in detail by the above-mentioned embodiments, various modifications can be made by those skilled in the art at the discretion of those skilled in the art, all without departing from what is intended to be protected by the appended claims.

Claims (6)

1. An image capture method, comprising the steps of: (a) providing an image capture device; (b) start an image capture action; (c) detecting a first axial acceleration reading, a second axial acceleration reading, a third axial acceleration reading and an image quality; (d) judging whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchangeable; (e) determining whether the image quality is less than a predetermined value; and (f) end the image capture action; Wherein, when the judgment result of the step (d) is yes, the step (e) is executed after the step (d), and when the judgment result of the step (d) is no, after the step (d) is Repeat the step (c), when the judgment result of the step (e) is yes, then execute the step (f) after the step (e), and when the judgment result of the step (e) is no, in the step (e) Step (e) is followed by re-execution of step (c). 2. The image capturing method as claimed in claim 1, before the step (b), further comprising the step of: (a1) detecting the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading; and (a2) judging whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchangeable; Wherein, when the judgment result of the step (a2) is yes, the step (b) is executed after the step (a2), and when the judgment result of the step (a2) is no, after the step (a2) is Perform this step (a1) again. 3. The image capturing method as claimed in claim 1, before the step (b), further comprising the step of: (a1) detecting the first axial acceleration reading, the second axial acceleration reading, the third axial acceleration reading and the image quality; (a2) determining whether any two of the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading are interchangeable; and (a3) judging whether the image quality is less than a preset value; Wherein, when the judgment result of the step (a2) is yes, the step (a3) is executed after the step (a2), and when the judgment result of the step (a2) is no, after the step (a2) is Re-execute the step (a1), when the judgment result of the step (a3) is yes, then execute the step (b) after the step (a3), and when the judgment result of the step (a3) is no, in the step (a3) Step (a3) is followed by re-execution of this step (a1). 4. The image capturing method as claimed in claim 3, wherein when the image capturing device is rotated to a horizontal position, a vertical position or an oblique position to perform the image capturing action, and then reversely rotated to restore, the step (a2) ) and the judgment result of the step (d) are both yes, and the two readings exchanged in the step (a2) and the step (d) are the same. 5. The image capturing method of claim 1, before the step (b), further comprising the step of: (b0) pressing a switch element. 6. The image capturing method of claim 1, wherein the image capturing device comprises: a control unit; a three-axis acceleration sensor connected to the control unit for detecting the first axial acceleration reading, the second axial acceleration reading and the third axial acceleration reading; an optical mouse component connected to the control unit for detecting the image quality; and An image capturing unit is connected with the control unit for performing the image capturing action.

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