TW201431370A - System and method for adjusting image capturing device - Google Patents

Abstract

A system for adjusting image capturing device is applied in an electronic device, the system includes a setting module that predetermines a three dimensions (3D) coordinating system based on a display of the electronic device, and sets an adjustment angle between each axis of the 3D coordinating system and a horizontal plane; a calculation module that determines a current angle between each axis of the 3D coordinating system and the horizontal plane when the display is rotated, using detected parameters from a gravity sensor of the electronic device; and a capturing module that controls an image capturing device of the electronic device to capture an image of a current scene when each current angle of each axis matches with the adjustment angle. A method for adjusting image capturing device is also provided.

Description

Photo correction system and method

The present invention relates to photography techniques, and more particularly to a camera correction system and method.

At present, there are different kinds of electronic devices that can be used to shoot images after being equipped with a camera. However, although the portable electronic device can conveniently capture images, it is easy for the user to shake hands or other reasons (for example, failing to The electronic device is positioned to capture a scene or the like, and an image with a better shooting effect cannot be obtained, for example, the captured image is skewed or blurred due to jitter. In particular, when the electronic device is light in weight and small in volume, the electronic device may be shaken due to the user's click on the power of the shooting button, and a clear image cannot be obtained.

In view of the above, it is necessary to provide a photographing correction system and method, which can correct the image to be photographed according to the position or angle of the image to be photographed by the user, and automatically take an image when the image to be photographed meets the desired position or angle.

A photographing correction method is applied to an electronic device, the electronic device comprising a gravity sensor, an image capturing device and a display screen, the method comprising the steps of: constructing a three-dimensional coordinate system with the display screen as a reference surface; a correction angle formed by each axis of the three-dimensional coordinate system with a horizontal plane; determining, by using a rotation angle of the display screen detected by the gravity sensor, each axis of the three-dimensional coordinate system after rotation is formed with a horizontal plane The current angle is included; and when the current angle of each axis of the three-dimensional coordinate system coincides with the corresponding correction angle, the image capturing device is controlled to capture the current scene.

A photographing correction system is applied to an electronic device, the electronic device includes a gravity sensor, an image capturing device and a display screen, and the system includes: a setting module, configured to construct a three-dimensional coordinate system with the display screen as a reference surface And setting a correction angle formed by each axis in the three-dimensional coordinate system to form a horizontal plane when the photograph is taken; the calculation module is configured to determine the rotation angle of the display screen detected by the gravity sensor to determine the rotated state a current angle formed by each axis of the three-dimensional coordinate system and the horizontal plane; and a shooting module for controlling the image capturing device when the current angle of each axis of the three-dimensional coordinate system is consistent with a corresponding correction angle Shoot the current scene.

Compared with the prior art, the camera correction system and method can correct the image to be captured according to the position or angle of the image that the user needs to capture, and can also automatically perform when the image to be captured meets the desired position or angle. Shooting to reduce errors caused by human operations.

As shown in FIG. 1, it is a functional module diagram of a preferred embodiment of the photographing correction system of the present invention. The camera correction system 10 is applied to the electronic device 1. The electronic device 1 may be a communication device (such as a mobile phone, etc.), a personal digital assistant, a tablet computer, a notebook computer, or the like.

The electronic device 1 further includes a processor 11 , a storage device 12 , a display screen 13 , an image capturing device 14 , and a gravity sensor 15 .

The processor 11 is configured to execute the photographing correction system 10 and various types of software installed in the electronic device 1, such as an operating system. The storage device 12 may be a memory of the electronic device 1 or a memory card externally connected to the electronic device 1, such as a SIM card (Smart Media Card) or an SD card (Secure Digital). Card, secure digital card) and so on. The storage device 12 is configured to store various types of materials, such as maps, photos, information obtained by using the photographing correction system 10, and acquired information.

The display screen 13 is used to display visual materials such as photos, maps, texts, and the like.

The image capturing device 14 may be a camera, and may also be an image scanning device for capturing or scanning an image of a stereo or planar object (the object may be an object or a flat picture, etc.).

The gravity sensor 15 is configured to detect parameters such as a tilt angle, a level or a vertical state, a displacement difference, and an acceleration of the electronic device 1 . In the preferred embodiment, the gravity sensor 15 can be used to record the angle of the electronic device 1 with the horizontal plane during the rotation.

In the preferred embodiment, the photographing correction system 10 is configured to preset an angle required for photographing a scene, and determine whether the current angle of the electronic device 1 is correct according to the preset angle during the photographing process, thereby realizing Correct the angle of the captured image and make sure the captured image is clear.

The camera calibration system 10 includes a plurality of function modules, namely: a setup module 100, a calculation module 102, a determination module 104, and a capture module 106.

The setting module 100 is configured to construct a three-dimensional coordinate system with the display screen 13 as a reference surface, and determine an angle between each axis of the three-dimensional coordinate system and a horizontal plane. In the preferred embodiment, the three-dimensional coordinate system used by the gravity sensor 15 is in parallel with the display screen 13, that is, the three-dimensional coordinate system used by the gravity sensor 15 and the setting module. The three-dimensional coordinate system constructed by 100 is parallel. Therefore, the change in the angle detected by the gravity sensor 15 can be used to determine the angular change produced by the constructed three-dimensional coordinate system.

The setting module 100 may construct the three-dimensional coordinate system when the display screen 13 is in a vertical position with a horizontal plane (refer to the first schematic diagram of the three-dimensional coordinate system as shown in FIG. 2), and may also be in the display. The three-dimensional coordinate system is constructed when the screen 13 is in a parallel position with the horizontal plane, that is, the three-dimensional coordinate system is constructed when the electronic device 1 is laid flat on a horizontal plane (refer to the first schematic diagram of the three-dimensional coordinate system as shown in FIG. 3). ). Although the construction method is different, the setting of the coordinate axes can be the same, except that the three axes of the constructed three-dimensional coordinate system do not coincide with the angle formed by the horizontal plane. For example, in the three-dimensional coordinate system shown in FIG. 2, the angle formed by the X-axis and the Z-axis with the horizontal plane is zero, and the angle formed by the Y-axis and the horizontal plane is 90 degrees. For another example, in the three-dimensional coordinate system shown in FIG. 3, the angle formed by the X-axis and the Y-axis with the horizontal plane is zero, and the angle formed by the Z-axis and the horizontal plane is 90 degrees.

In addition, in other embodiments, the construction of the three-dimensional coordinate system and the setting of the three axes may also be set or modified according to actual needs, and the above content is merely illustrative and not limiting. For example, the constructed three-dimensional coordinate system may not be parallel to the three-dimensional coordinate system used by the gravity sensor 15 and maintain a certain angle, and only needs to be adjusted and corrected by the subsequent calculation module 102.

For convenience of description, when various angles are exemplified below, the three-dimensional coordinate system shown in FIG. 3 is taken as an example.

The setting module 100 is further configured to set a correction angle that each axis of the three-dimensional coordinate system needs to form with a horizontal plane when photographing. The correction angle can be modified at any time according to the data input by the user. For example, when the user needs to cause the electronic device 1 equipped with the image capturing device 14 to take a certain scene at an angle perpendicular to the horizontal plane, the X-axis correction can be set. The angle is zero (take the three-dimensional coordinate system shown in Figure 3 as an example), the correction angle of the Y-axis is 90, and the correction angle of the Z-axis is zero, that is, [0, 90, 0].

The setting module 100 is further configured to set an image preview interface 130. Referring to the image preview interface diagram 130 shown in FIG. 5, in addition to the scene preview to be photographed, it is also used to display the current angle and/or the correction angle formed by each axis of the three-dimensional coordinate system and the horizontal plane, FIG. 5 Only the correction angle is shown for exemplification, and the actual application is not limited thereto.

In addition, the image preview interface 130 also provides an input field for correcting the angle for the user to adjust the correction angle.

In other embodiments, the setting module 100 is further configured to set a value to indicate a corresponding angle. For example, 1 degree is represented by 0.1, and 10 degrees is 1. For example, when the correction angle of the Y-axis is 90, the user can input 9 directly. When the current angle or the correction angle is displayed on the image preview interface 130, the corresponding value of each angle can be directly displayed.

After the photographing correction system 10 is activated, the user can input a correction angle and then hold the electronic device 1 to photograph a certain scene.

The computing module 102 is configured to detect the rotation angle of the display screen 13 by using the gravity sensor 15, and calculate each axis and horizontal plane of the rotated three-dimensional coordinate system according to the detected rotation angle. The current angle formed. Referring to the schematic diagram of the rotated three-dimensional coordinate system as shown in FIG. 4, the original constructed three-dimensional coordinate system is represented by XYZ, and the rotated three-dimensional coordinate axis is represented by X1YZ1, and that the rotated X1 axis forms an angle with the original X-axis. α, the rotated Z1 axis forms an angle β with the original Z axis, and the Y axis is still at an angle of zero with the horizontal plane. Therefore, it can be determined that the current included angle after rotation is [α, 0, β].

In other embodiments, when the three-dimensional coordinate system used by the gravity sensor 15 and the display screen 13 are not in a parallel position and there is a certain fixed angle, the calculation module 102 can determine the current angle. Combining the rotation angle detected by the gravity sensor 15 with the fixed angle to calculate the current angle, for example, the rotation angle and the fixed angle may be superimposed, or the rotation angle may be subtracted from a fixed angle, etc., and the actual calculation manner is not Limited to this.

The determining module 104 is configured to determine whether a current angle of each axis of the three-dimensional coordinate system is consistent with a corresponding correction angle. For example, α clearly has a correction angle 0 corresponding to the X axis that is unequal. Therefore, as shown in FIG. 4, the determination module 104 can determine the current angle of each axis of the three-dimensional coordinate system and the corresponding The correction angle is inconsistent.

When the current angle of one of the axes of the three-dimensional coordinate system is inconsistent with the corresponding correction angle, the determining module 104 is further configured to prompt the user to rotate the angle of the display screen. For example, if the α is 30 degrees, the determination module 104 can prompt according to the positive and negative values of the preset direction and angle, for example, remind the user to rotate the electronic device 1 to the right by 30 degrees.

The setting module 100 is further configured to set an error range to allow a moderate error of the angle, and when the difference between the current angle of each axis of the three-dimensional coordinate system and the corresponding correction angle is within the error range, the determination may be determined. The current angle coincides with the correction angle.

The shooting module 106 is configured to control the image capturing device 14 to capture a current scene when the current angle of each axis of the three-dimensional coordinate system is consistent with a corresponding correction angle.

In the preferred embodiment, when the user manually rotates the electronic device 1 to perform scene shooting, it is difficult to completely rotate the angle to a predetermined position due to human error, and even after rotating to a predetermined position, when the shooting button is clicked by hand The angle may be changed due to the power of the click. Therefore, the shooting module 106 can automatically perform shooting when the current angle is detected to be the same as the correction angle, and the user does not need to perform the shooting.

FIG. 6 is a flow chart of a preferred embodiment of the photographing correction method of the present invention.

First, in step S2, the setting module 100 constructs a three-dimensional coordinate system with the display screen 13 as a reference surface.

In step S4, the setting module 100 sets a correction angle that each axis of the three-dimensional coordinate system needs to form with a horizontal plane when photographing.

In step S6, the computing module 102 uses the gravity sensor 15 to detect the rotation angle of the display screen 13.

In step S8, the calculation module 102 calculates a current angle formed by each axis of the rotated three-dimensional coordinate system and the horizontal plane according to the detected rotation angle.

In step S10, the determining module 104 determines whether the current angle of each axis of the three-dimensional coordinate system is consistent with the corresponding correction angle.

When the current angle of each axis of the three-dimensional coordinate system is consistent with the corresponding correction angle, in step S12, the imaging module 106 makes the image capturing device 14 capture the current scene, and then ends the process. .

When the current angle of one of the axes of the three-dimensional coordinate system is inconsistent with the corresponding correction angle, the determining module 104 is further configured to prompt the user to rotate the angle of the display screen in step S14, and then the flow returns to Step S6.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention are It should be covered by the following patent application.

1. . . Electronic device

10. . . Photo correction system

100. . . Setting module

102. . . Computing module

104. . . Judging module

106. . . Shooting module

11. . . processor

12. . . Storage device

13. . . Display screen

130. . . Image preview interface

14. . . Image capture device

15. . . Gravity sensor

1 is a functional block diagram of a preferred embodiment of a photographing correction system of the present invention.

2 is a first schematic diagram of a three-dimensional coordinate system of the photographing correction system of the present invention.

3 is a second schematic diagram of a three-dimensional coordinate system of the photographing correction system of the present invention.

4 is a schematic diagram of a three-dimensional coordinate system after rotation of the photographing correction system of the present invention.

FIG. 5 is a schematic diagram of an image preview interface of the photographing correction system of the present invention.

6 is a flow chart of a preferred embodiment of the photographing correction method of the present invention.

1. . . Electronic device

10. . . Photo correction system

100. . . Setting module

102. . . Computing module

104. . . Judging module

106. . . Shooting module

11. . . processor

12. . . Storage device

13. . . Display screen

14. . . Image capture device

15. . . Gravity sensor

Claims (10)

A photographing correction method is applied to an electronic device, the electronic device comprising a gravity sensor, an image capturing device and a display screen, the method comprising the following steps:
Constructing a three-dimensional coordinate system with the display screen as a reference surface;
Setting a correction angle that each axis in the three-dimensional coordinate system needs to form with a horizontal plane when photographing;
Determining, by using a rotation angle of the display screen detected by the gravity sensor, a current angle formed by each axis of the rotated three-dimensional coordinate system and a horizontal plane; and a current angle of each axis of the three-dimensional coordinate system When the corresponding correction angles are consistent, the image capturing device is controlled to capture the current scene. The method for correcting photographs as described in claim 1, wherein the method further comprises:
When the current angle of one of the axes of the three-dimensional coordinate system does not coincide with the corresponding correction angle, the user is prompted to rotate the angle of the display screen. The method for correcting photographs as described in claim 1, wherein the method further comprises:
An image preview interface is provided, on which the current angle formed by each axis of the three-dimensional coordinate system and the horizontal plane is displayed. The method for correcting photographs as described in claim 3, the method further comprising:
The set value indicates the corresponding angle, and the current angle and the correction angle formed by each axis of the three-dimensional coordinate system and the horizontal plane are numerically represented according to the correspondence between the numerical value and the angle. The photographing correction method according to any one of claims 1 to 4, further comprising:
And setting an error range, when the difference between the current angle of each axis of the three-dimensional coordinate system and the corresponding correction angle is within the error range, controlling the image capturing device to capture the current scene. A photographing correction system is applied to an electronic device, the electronic device comprising a gravity sensor, an image capturing device and a display screen, the system comprising:
a setting module, configured to construct a three-dimensional coordinate system with the display screen as a reference surface, and set a correction angle that each axis of the three-dimensional coordinate system needs to form with a horizontal plane when photographing;
a computing module, configured to determine, by using a rotation angle of the display screen detected by the gravity sensor, a current angle formed by each axis of the rotated three-dimensional coordinate system and a horizontal plane; and a shooting module for When the current angle of each axis of the three-dimensional coordinate system is consistent with the corresponding correction angle, the image capturing device is controlled to capture the current scene. The photographing correction system of claim 6, wherein the system further comprises a judging module, configured to prompt the user to rotate the current angle of one of the axes of the three-dimensional coordinate system and the corresponding correction angle Shows the angle of the screen. The photographing correction system of claim 6, wherein the setting module is further configured to set an image preview interface, and display each axis and a horizontal plane of the three-dimensional coordinate system on the image preview interface. The current angle formed. The photographing correction system of claim 8, wherein the setting module is further configured to set a numerical value to indicate a corresponding angle, and the calculating module is further configured to represent the numerical value according to the correspondence between the numerical value and the angle. The current angle and the corrected angle formed by each axis of the three-dimensional coordinate system and the horizontal plane. The photographing correction system according to any one of claims 6 to 9, wherein the setting module is further configured to set an error range, and the control module is further used for each of the three-dimensional coordinate systems. When the difference between the current angle of the axis and the corresponding correction angle is within the error range, the image capturing device is controlled to capture the current scene.