WO2018039877A1

WO2018039877A1 - Guideline display method and system, and auxiliary photography device

Info

Publication number: WO2018039877A1
Application number: PCT/CN2016/097187
Authority: WO
Inventors: 郭灼; 潘立忠
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2018-03-08
Also published as: CN106716492A

Abstract

A guideline display method and system, and an auxiliary photography device, wherein said method comprises: acquiring guideline parameters (S1); using the guideline parameters to generate a guideline (S2), wherein the guideline is used to indicate parts or all of boundaries of a cropped picture; displaying the guideline on a captured picture (S3).

Description

Reference line display method, system and photographing auxiliary device

【技术领域】[Technical Field]

The present application relates to the field of photography, and in particular to a reference line display method, system, and imaging aid.

【背景技术】【Background technique】

In order to improve the flexibility of composition and production, a larger size is often selected for shooting, and then the original material of the actual output size is cut out in the post-production. The size of the cropped image cannot be seen when shooting. The composition of the final output image or movie can only rely on the user's experience, and the accuracy is not guaranteed.

【发明内容】 [Summary of the Invention]

In order to at least partially solve the above problems, the present invention provides a reference line display method, the method comprising: acquiring a reference line parameter; generating a reference line by using a reference line parameter, wherein the reference line is used to represent a boundary of a part or all of the trimming picture; The reference line is displayed on the shooting screen.

The reference line parameter includes at least one of a clipping ratio, a shape, and a feature point coordinate.

Wherein, the reference line further includes a center point for indicating a center of the cropped screen, and the reference line parameter further includes a coordinate or an offset of the center point.

The reference line parameter further includes a display parameter of the reference line, and the display parameter includes at least one of a color, a transparency, a thickness, and a shape.

The method further includes: receiving a redrawing parameter of the reference line; and redisplaying the reference line according to the redrawing parameter.

Wherein, the reference line further includes a center point for indicating the center of the cropped screen.

In order to at least partially solve the above problems, the present invention provides a reference line display system, the system comprising: an acquisition module for acquiring reference line parameters; and a generation module for generating a reference line by using reference line parameters, wherein the reference line is used for Indicates the boundary of some or all of the cropped screens; the display module is used to display the reference lines on the shooting screen.

In order to at least partially solve the above problems, the present invention provides a photographing auxiliary device, comprising: a processor, an input device, a display screen and a memory, wherein the processor is respectively connected to the input device, the display screen and the memory; and the processor is configured to acquire the reference line Parameter; the reference line is used to generate a reference line, wherein the reference line is used to represent the boundary of part or all of the trimming picture; the control display screen displays the reference line on the shooting screen.

The processor is specifically configured to read the saved reference line parameters from the memory.

The processor is specifically configured to receive a reference line parameter input through the input device.

The method further includes: the communication circuit; the processor is specifically configured to receive the reference line parameter through the communication circuit.

The input device is a touch screen, a keyboard, a button or a microphone.

Wherein, the input device is a touch screen, and the input device is integrated with the display screen.

The invention has the beneficial effects that the reference line for indicating the boundary of the partial or all clipping pictures is displayed on the shooting picture, so that the user can visually see the boundary of the cropping picture when shooting, and can be accurate in real time based on the reference line. The adjustments are made to ensure the accuracy of the final output of the picture or film.

【附图说明】 [Description of the Drawings]

1 is a flow chart of a first embodiment of a reference line display method of the present invention;

2 is a schematic diagram of a reference line parameter including only a trim ratio in the first embodiment of the reference line display method of the present invention;

3 is a schematic view showing a reference line parameter including only a shape in the first embodiment of the reference line display method of the present invention;

4 is a schematic diagram of a reference line parameter including only feature point coordinates in the first embodiment of the reference line display method of the present invention;

Figure 5 is a schematic view showing a second embodiment of the reference line display method of the present invention;

Figure 6 is a flow chart showing a third embodiment of the reference line display method of the present invention;

7 is a schematic structural view of a first embodiment of a reference line display system of the present invention;

Figure 8 is a block diagram showing the structure of the first embodiment of the photographing auxiliary device of the present invention.

【具体实施方式】【detailed description】

The invention will now be described in detail in conjunction with the drawings and embodiments.

As shown in FIG. 1, the first embodiment of the reference line display method of the present invention includes:

S1: Get the reference line parameters.

It can receive the reference line parameters input by the user through the input device, or can receive the reference line parameters sent by other devices, and can also read the saved reference line parameters. The reference line parameter input by the user through the input device may be a specific parameter input by the user, or may be a reference line parameter selected by the user from a plurality of preset optional values.

The reference line is used to represent the boundary of some or all of the cropped picture. The reference line parameter is the parameter required to generate the reference line. The reference line parameters include at least one of a trim ratio, a shape, and feature point coordinates. The feature points may be points on the boundary of the trimming screen, or other points that may represent the boundary of the trimming screen, such as a center point, a focus, and the like.

If the reference line indicator is a boundary of the partially cropped picture, the reference line parameter may further include a cutting parameter for specifying which part of the boundary of the cropped picture is used as the reference line. Of course, it is also possible to select which part of the boundary of the cropped picture is used as the reference line by using the feature point coordinates instead of the cropping parameter.

In an embodiment of the reference line display method of the present invention, the reference line parameter further includes a display parameter of the reference line, and the display parameter includes at least one of color, transparency, thickness, and shape. For a line, its shape may refer to a line type such as a broken line, a dotted line, or the like.

S2: Generate reference lines using reference line parameters.

If a unique reference line can be obtained according to the reference line parameter, for example, the reference line is given a circular shape in the reference line parameter, and the coordinates of the center point (ie, the center of the circle) and the point on the circle are given, then only the reference line can be utilized. The parameter generates a reference line. Conversely, if a unique reference line cannot be obtained based on the reference line parameters, some default parameters need to be added to generate the reference line.

If only the cropping ratio is included in the reference line parameter, the reference line is obtained by scaling the shooting screen according to the cropping ratio centering on the center point of the shooting screen, as shown in FIG. 2, and the solid line indicates the shooting screen. The dotted line indicates the reference line.

If only the shape is included in the reference line parameter, the largest boundary of the shape that the photographing screen can accommodate is the reference line centering on the center point of the photographing screen. For example, if the shooting picture is rectangular, the reference line parameter only includes the shape and the shape is circular, the center point of the shooting picture is taken as the center, and the circle with the diameter of the shooting picture is used as the reference line, as shown in FIG. The dotted line shows the reference line. The shape may further include necessary scale parameters. For example, when the cropped screen is a rectangle, the scale parameter may be an aspect ratio; when the cropped screen is an ellipse, the scale parameter may be a ratio of the length to the short axis.

If only one feature point coordinate is included in the reference line parameter, and the default shape of the cropping picture is square, the center point of the shooting picture is centered, and the feature point is a square of the vertex as a reference line, as shown in FIG. 4 .

S3: The reference line is displayed on the shooting screen.

The reference line generated in step S2 is displayed on the shooting screen in accordance with the display parameters. If the display parameters are not included in the reference line parameters or some types are missing from the display parameters, the default display parameters can be added to display the reference lines.

If multiple guides are generated, they can be displayed simultaneously on the shooting screen. In addition, different reference lines can be distinguished by different display parameters.

Through the implementation of the above embodiment, the reference line for indicating the boundary of part or all of the trimming screen is displayed on the shooting screen, so that the user can visually see the boundary of the trimming screen when shooting, and can be accurate in real time based on the reference line. Make adjustments to ensure the accuracy of the composition of the final output image or movie.

As shown in FIG. 5, a second embodiment of the reference line display method of the present invention is based on the first embodiment of the reference line display method of the present invention. The reference line further includes a center point indicating a center of the cropped screen, and the reference line parameter further includes The coordinates or offset of the center point. The offset here may be an offset with respect to the center point of the photographing screen, or may be an offset with respect to other points of the photographing screen, such as a vertex. At this time, if the reference line parameter further includes a display parameter, the display parameter of the center point may be the same as or different from the display parameter of other reference lines. The shape in the display parameter of the center point may be a circle, a square, a triangle, or the like.

As shown in FIG. 6, the third embodiment of the reference line display method of the present invention is based on the first embodiment of the reference line display method of the present invention, and further includes:

S4: Receive redraw parameters of the reference line.

In general, the redraw parameter only changes the display mode of some or all of the reference lines without changing the geometry of the reference line, and the redraw parameter includes at least one of color, transparency, thickness, and shape. For the same part of the display parameters as the displayed reference line, the redraw parameter can be omitted.

S5: Redisplay the reference line according to the redraw parameter.

The display parameters of the reference line are modified according to the redraw parameters, and the reference lines are displayed again in the shooting screen according to the modified display parameters.

As shown in FIG. 7, the first embodiment of the reference line display system of the present invention includes:

The obtaining module 11 is configured to acquire reference line parameters. The reference line parameter includes at least one of a clipping ratio, a shape, and a feature point coordinate.

The generating module 12 is configured to generate a reference line by using reference line parameters, wherein the reference line is used to represent a boundary of part or all of the trimming picture.

The display module 13 is configured to display a reference line on the shooting screen.

The reference line display system of the present embodiment is used to perform the steps of the first embodiment of the reference line display method of the present invention. For details, refer to the first embodiment of the reference line display method of the present invention, and details are not described herein again.

Further, the reference line includes a center point for indicating the center of the cropped screen, and the reference line parameter further includes coordinates or an offset of the center point.

Further, the reference line parameter includes a display parameter of the reference line, and the display parameter includes at least one of color, transparency, thickness, and shape.

As shown in FIG. 8, the first embodiment of the photographing auxiliary device of the present invention comprises: a processor 21, an input device 22, a display screen 23, a memory 24 and a communication circuit 25, and the processor 21 is connected to the input device 22, the display screen 23, and the memory, respectively. 24 and communication circuit 25.

The processor 21 controls the operation of the photographing auxiliary device, and the processor 21 may also be referred to as an MCU (Microcontroller). Unit, micro control unit). Processor 21 may be an integrated circuit chip with signal processing capabilities. The processor 21 can also be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, and discrete hardware components. . The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The input device 22 is for inputting information to the photographing auxiliary device, and completes information transmission between the photographing auxiliary device and the user or other device. Input device 22 can be a touch screen, a keyboard, a button, a microphone, or the like. When the input device 22 is a touch screen, the display screen 23 and the input device 22 can be integrated.

The memory 24 is used to store instructions and data necessary for the operation of the processor 21, as well as saved reference line parameters.

The communication circuit 25 is for transmitting and receiving data, and is an interface for the photographing auxiliary device to communicate with other devices.

The processor 21 is configured to acquire a reference line parameter, where the reference line parameter includes at least one of a trimming ratio, a shape, and a feature point coordinate; and the reference line is used to generate a reference line, wherein the reference line is used to represent a boundary of a part or all of the trimming picture The control display 23 displays a reference line on the shooting screen.

The parts of the photographic auxiliary device of the present embodiment are used to perform the steps of the first embodiment of the reference line display method of the present invention. For details, refer to the first embodiment of the reference line display method of the present invention, and details are not described herein again.

The processor 21 can read the saved reference line parameters from the memory 24; the reference line parameters input through the input device 22 can be received; the reference line parameters can also be received through the communication circuit 25. In other embodiments, the photographing aid may not include communication circuitry.

The shooting aid can be integrated with the shooting device or independently of the shooting device. For example, the shooting device is a camera mounted on an unmanned aerial vehicle, and the shooting aid is a remote control for controlling the unmanned aerial vehicle or a control program is installed. Mobile terminal.

In the several embodiments provided by the present invention, it should be understood that the disclosed photographing aid can be implemented in other ways. For example, the implementation of the photographic assistant device described above is merely illustrative. For example, the division of the module or resource unit is only a logical function division, and the actual implementation may have another division manner, such as multiple resources. Units or components may be combined or integrated into another system, or some features may be omitted or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or resource unit, and may be in an electrical, mechanical or other form.

The resource units described as separate components may or may not be physically separated. The components displayed as resource units may or may not be physical resource units, that is, may be located in one place, or may be distributed to multiple networks. On the resource unit. Some or all of the resource units may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In addition, each functional resource unit in each embodiment of the present invention may be integrated into one processing resource unit, or each resource unit may exist physically separately, or two or more resource units may be integrated into one resource unit. The above integrated resource unit can be implemented in the form of hardware or in the form of a software function resource unit.

The integrated resource unit, if implemented in the form of a software functional resource unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM, Read-Only) Memory, random access memory (RAM), disk or optical disk, and other media that can store program code.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A reference line display method, comprising:

Get reference line parameters;

Generating a reference line using the reference line parameter, wherein the reference line is used to represent a boundary of a portion or all of the cropped picture;

The reference line is displayed on the shooting screen.
The method of claim 1 wherein

The reference line parameter includes at least one of a clipping ratio, a shape, and a feature point coordinate.
The method of claim 2 wherein:

The reference line further includes a center point for indicating a center of the cropped picture, the reference line parameter further including coordinates or an offset of the center point.
Method according to claim 2 or 3, characterized in that

The reference line parameter further includes display parameters of the reference line, the display parameters including at least one of color, transparency, thickness, and shape.
The method of claim 1 further comprising:

Receiving a redraw parameter of the reference line;

The reference line is redisplayed according to the redraw parameter.
The method of claim 5 wherein:

The reference line further includes a center point for indicating the center of the cropped screen.
A reference line display system, comprising:

Obtaining a module for obtaining reference line parameters;

Generating a module for generating a reference line by using the reference line parameter, wherein the reference line is used to represent a boundary of a part or all of the trimming picture;

a display module for displaying the reference line on a shooting screen.
The system of claim 7 wherein:

The reference line parameter includes at least one of a clipping ratio, a shape, and a feature point coordinate.
The system of claim 7 wherein:

The reference line further includes a center point for indicating a center of the cropped picture, the reference line parameter further including coordinates or an offset of the center point.
A system according to claim 8 or claim 9 wherein:

The reference line parameter further includes display parameters of the reference line, the display parameters including at least one of color, transparency, thickness, and shape.
A photographing auxiliary device, comprising: a processor, an input device, a display screen and a memory, wherein the processor is respectively connected to the input device, the display screen and the memory;

The processor is configured to acquire a reference line parameter, and generate a reference line by using the reference line parameter, wherein the reference line is used to represent a boundary of a part or all of a trimming picture; and the display screen is controlled to display the reference line on a shooting screen .
The device according to claim 11 wherein:

The reference line parameter includes at least one of a clipping ratio, a shape, and a feature point coordinate.
The device according to claim 12, characterized in that

The reference line further includes a center point for indicating a center of the cropped picture, the reference line parameter further including coordinates or an offset of the center point.
Device according to claim 12 or 13, characterized in that

The reference line parameter further includes display parameters of the reference line, the display parameters including at least one of color, transparency, thickness, and shape.
The device according to claim 11 wherein:

The processor is specifically configured to read the saved reference line parameters from the memory.
The device according to claim 11 wherein:

The processor is specifically configured to receive the reference line parameter input through the input device.
The device of claim 11 further comprising a communication circuit;

The processor is specifically configured to receive the reference line parameter by using the communication circuit.
The device according to claim 11 wherein:

The input device is a touch screen, a keyboard, a button or a microphone.
The device of claim 18, wherein

The input device is a touch screen, and the input device is integrated with the display screen.