WO2016019817A1

WO2016019817A1 - Object motion trajectory photographing method and system, and computer storage medium

Info

Publication number: WO2016019817A1
Application number: PCT/CN2015/085199
Authority: WO
Inventors: 刘林汶
Original assignee: 努比亚技术有限公司
Priority date: 2014-08-06
Filing date: 2015-07-27
Publication date: 2016-02-11
Also published as: CN104125404A; CN104125404B

Abstract

Disclosed is an object motion trajectory photographing method. The method comprises: when an object motion trajectory photographing instruction is detected, a terminal acquires a current environment parameter at every preset exposure time and photographs one picture whenever the current environment parameter satisfies a first preset criterion; and, the terminal produces an object motion trajectory video on the basis of the pictures photographed. Also disclosed are an object motion trajectory photographing system and a computer storage medium.

Description

Object motion trajectory shooting method, system and computer storage medium

Technical field

The present invention relates to the field of photographing technology, and in particular, to an object motion trajectory photographing method, system, and computer storage medium.

Background technique

When shooting an object's motion trajectory, the exposure time usually takes 20 to 60 minutes, which requires a professional camera such as a SLR camera, because it is equipped with a photosensitive hardware that can support long-term continuous exposure. With the development of technology, existing terminals such as mobile phones and tablet computers can also capture the motion trajectory of objects through long-time exposure. However, due to the limitations of the shooting hardware on the terminal, the shooting time of the object motion trajectory is longer, which often requires several Continuous shooting for hours or even hours, if you encounter interference such as light or jitter during shooting, it may seriously affect the shooting quality, and the existing terminal can not actively identify the interference during the shooting process, resulting in the quality of the picture taken by the terminal. Lower.

Summary of the invention

In view of this, the embodiments of the present invention are intended to provide a method, a system, and a computer storage medium for shooting an object motion trajectory, which can solve the technical problem of low picture quality of the terminal.

To achieve the above object, an embodiment of the present invention provides a method for photographing an object motion trajectory, and the method for photographing an object motion trajectory includes the following steps:

When detecting an object motion trajectory shooting instruction, the terminal acquires the current environmental parameter every preset exposure time, and takes a picture when the current environmental parameter satisfies the first preset condition;

The terminal generates an object motion trajectory video based on the captured picture.

In the above solution, the terminal generates an object motion trajectory video based on the captured image. The steps include:

When the first picture is taken, the first picture is taken as the first synthesized object motion track picture;

After the first picture is captured, the terminal combines the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture for each picture captured;

At the end of the shooting, the terminal stores the synthesized plurality of object motion trajectory pictures to a preset storage path and generates an object motion trajectory video based on the plurality of object motion trajectory pictures synthesized during the shooting.

In the above solution, after the first picture is captured, the terminal combines the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture. The steps include:

After the first picture is captured, the terminal captures a picture to determine whether the currently captured picture meets the second preset condition;

When the currently captured picture satisfies the second preset condition, the terminal synthesizes the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture.

In the above solution, after the first picture is captured, after the step of the terminal capturing a picture to determine whether the currently captured picture meets the second preset condition, the object motion track shooting method includes :

When the currently captured picture does not satisfy the second preset condition, the terminal deletes the currently taken picture.

In the above solution, the step of the terminal generating an object motion trajectory video based on the captured image includes:

At the end of the shooting, the terminal determines that the second preset condition is satisfied in each of the captured pictures. a picture and a picture that satisfies the second preset condition as a valid picture;

The terminal sorts each valid picture according to the generation order, and extracts the captured picture according to the current arrangement order;

When extracting the first picture, the terminal uses the first picture as the first synthesized object motion track picture;

After extracting the first picture, the terminal extracts a picture, and combines the currently extracted picture with the last synthesized object motion track picture to generate a new object motion track picture;

The terminal stores the synthesized plurality of object motion trajectory images to a preset storage path and generates an object motion trajectory video based on the synthesized plurality of object motion trajectory pictures.

In addition, in order to achieve the above object, an embodiment of the present invention further provides an object motion trajectory photographing system, where the object motion trajectory photographing system includes:

The environment parameter obtaining module is configured to acquire the current environmental parameter every preset exposure time when the object motion track shooting instruction is detected;

a shooting module configured to take a picture when the current environmental parameter meets the first preset condition;

The processing module is configured to generate an object motion trajectory video based on the captured image.

In the above solution, the processing module includes:

a first processing unit configured to: when the first picture is captured, use the first picture as the first synthesized object motion track picture;

a synthesizing unit configured to, after capturing the first picture, synthesize a currently taken picture with the last synthesized object motion track picture to generate a new object motion track picture;

a second processing unit configured to store the synthesized plurality of object motion track images to a preset storage path at the end of the shooting and based on the plurality of object motion track images synthesized during the shooting process Generate an object motion track video.

In the above solution, the synthesizing unit includes:

Determining a subunit, configured to determine whether the currently photographed picture satisfies a second preset condition after each picture is captured after the first picture is captured;

And a synthesizing sub-unit configured to synthesize the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture when the currently captured picture satisfies the second preset condition.

In the above solution, the synthesizing unit further includes:

The subunit is deleted, and is configured to delete the currently photographed picture when the currently photographed picture does not satisfy the second preset condition.

In the above solution, the processing module includes:

a determining unit configured to determine, in the end of the shooting, a picture that meets the second preset condition in each of the captured pictures, and use the picture that meets the second preset condition as the effective picture;

a sorting unit configured to sort each valid picture in a generation order;

The extracting unit is configured to extract the captured image according to the current sorting order;

a third processing unit configured to: when the first picture is extracted, use the first picture as the first synthesized object motion track picture;

a synthesizing unit configured to, after extracting the first picture, synthesize the currently extracted picture with the last synthesized object motion track picture to generate a new object motion track picture;

The third processing unit is configured to store the synthesized plurality of object motion trajectory pictures to a preset storage path and generate an object motion trajectory video based on the synthesized plurality of object motion trajectory pictures.

An embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, where the computer program is used to perform the motion track of the object described above. Photo method.

The object motion trajectory shooting method, system and computer storage medium according to the embodiment of the present invention, when detecting an object motion trajectory shooting instruction, the terminal acquires current environmental parameters every preset exposure time, and satisfies the current environmental parameters. When the first preset condition is taken, a picture is taken, and a corresponding object motion track picture or video is generated based on the captured picture to ensure that each picture captured can avoid interference and improve the quality of the object motion track picture.

DRAWINGS

1 is a schematic flow chart of a preferred embodiment of a method for photographing an object motion trajectory according to the present invention;

2 is a schematic flow chart of the refinement of the first embodiment of step S20 of FIG. 1;

3 is a schematic flow chart of the second embodiment of step S20 of FIG. 1;

4 is a schematic diagram showing the refinement process of step S22 in FIG. 2;

5 is a schematic diagram of functional modules of a preferred embodiment of an object motion trajectory photographing system of the present invention;

6 is a schematic diagram of a refinement function module of the first embodiment of the processing module of FIG. 5;

FIG. 7 is a schematic diagram of a refinement function module of the second embodiment of the processing module of FIG. 5. FIG.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in order to make the present invention. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It can be understood by those skilled in the art that in the following embodiments of the object motion trajectory photographing method of the present invention, the implementation body of the object motion trajectory photographing method of the present invention may be a mobile phone, a tablet computer, a camera, a camera, etc., or any The terminal or device for realizing the method for photographing the motion track of the object of the present invention is not limited by the present invention. In the following embodiments of the method and system for photographing the motion track of the object of the present invention, the types of motion of the object include: motion of the object, and the photographer is still. Or, the object is still, the photographer is moving; or, the object and the photographer are relatively transported move.

The invention provides a method for photographing an object motion trajectory.

Referring to FIG. 1, FIG. 1 is a schematic flow chart of a preferred embodiment of a method for photographing an object motion track according to the present invention.

The method for shooting an object motion trajectory proposed in this embodiment includes:

Step S10, when detecting an object motion trajectory shooting instruction, the terminal acquires a current environmental parameter every preset exposure time, and takes a picture when the current environmental parameter satisfies the first preset condition;

The terminal can set the current exposure time, sensitivity (ISO), resolution, exposure compensation, noise reduction and other camera parameters when the object motion tracking instruction is detected or before shooting. The camera parameters can be automatically set or adjusted by the terminal. The terminal can also preset different parameters according to different object motion scenes over different regions, for the user to select a suitable object motion scene for shooting, or the terminal automatically selects an appropriate object motion scene according to the current state of the sky to shoot. For example, the step S10 includes: when detecting an object motion trajectory shooting instruction, the terminal displays an object motion scene selection interface, so that the user selects a corresponding object motion scene based on the object motion scene selection interface currently displayed by the terminal; When the user selects an interface-triggered selection command based on the object motion scene selection interface, the terminal locks the object motion scene corresponding to the selection instruction, and adjusts the shooting parameter based on the locked object motion scene; the terminal acquires the current environment parameter, When the current environment parameter satisfies the first preset condition, the terminal takes a picture.

The object motion trajectory shooting instruction may be triggered based on a physical shooting button, a virtual shooting button, a voice, a gesture, and a control command sent by a third-party control terminal on the terminal. When the terminal receives the object motion trajectory shooting instruction, the terminal can immediately start taking the picture, or delay the preset time to start shooting the picture, wherein delaying the preset time to start taking the picture is beneficial to avoid the user taking the shooting button or triggering the virtual shooting. Take a picture when the button is shaken to the phone.

In this embodiment, the first preset condition may be that the current light intensity is greater than the first preset valve. The value, or the current light intensity is less than the second preset threshold, the light intensity in the current environment can be detected by a photosensitive sensor disposed near the lens, and when the light intensity in the current environment is greater than the first preset threshold, In the current environment, there is a lens with a strong light source illuminating the terminal; when the light intensity in the current environment is less than the second preset threshold, it indicates that the lens of the terminal may be blocked or an obstacle passes. In this embodiment, the current environmental parameters are determined before the shooting of each picture. When the current environmental parameters meet the first preset condition, the picture is taken to ensure the quality of the captured picture.

In step S20, the terminal generates an object motion trajectory video based on the captured picture.

In this embodiment, the manner in which the terminal generates an object motion trajectory video based on the captured image includes:

1) Referring to FIG. 2, FIG. 2 is a first embodiment of the video generated by the terminal based on the captured image, and the step S20 includes:

Step S21, when the first picture is captured, the first picture is used as the first synthesized object motion track picture;

Step S22, after the first picture is captured, the terminal combines the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture every time a picture is captured;

Step S23, at the end of the shooting, the terminal stores the synthesized plurality of object motion track pictures to a preset storage path and generates an object motion track video based on the plurality of object motion track pictures synthesized during the shooting process.

2) Referring to FIG. 3, FIG. 3 is a second embodiment of the video generated by the terminal based on the captured image, and the step S20 includes:

Step S24, the terminal determines, in the end of the shooting, the picture that meets the second preset condition in each of the captured pictures, and takes the picture that meets the second preset condition as the effective picture;

Step S25, the terminal sorts each valid picture according to the generation order, and according to the Extracting the captured image in the order of the previous arrangement;

Step S26, when extracting the first picture, the terminal uses the first picture as the first synthesized object motion track picture;

Step S27, after extracting the first picture, the terminal extracts a picture, and combines the currently extracted picture with the last synthesized object motion track picture to generate a new object motion track picture;

Step S28, the terminal stores the synthesized plurality of object motion track images to a preset storage path and generates an object motion track video based on the synthesized plurality of object motion track images.

The manners of generating the motion trajectory video of the object listed above are merely exemplary. Those skilled in the art utilize the technical idea of the present invention, and other methods for generating motion trajectories of the object according to the specific needs thereof are all in the present invention. Within the scope of protection, it is not exhaustive here.

In this embodiment, the manner in which the currently captured picture is combined with the last synthesized motion track picture to generate a new object motion track picture includes: capturing the currently captured picture pixel and the pixel of the last synthesized object motion track picture. Superimposing to generate a new object motion track picture; or, generating a new object motion track picture according to the brightness value information of the pixel in the currently captured picture and the brightness value information of the pixel in the last synthesized object motion track picture. In this embodiment, a preferred method is to generate a new object motion track picture in a pixel replacement manner. The specific process is as follows: determining whether the brightness value of the pixel in the currently captured picture at the same position is greater than the pixel of the last synthesized object motion track picture. The brightness value; when it is determined that the brightness value of the pixel in the currently captured picture at the same position is greater than the brightness value of the pixel of the last synthesized object motion track picture, the last synthesized object motion track picture is replaced with the current captured The corresponding position of the pixel in the picture, generating a new object motion track picture.

In the present embodiment, the preset exposure time is preferably 5 to 10 seconds (S). When synthesizing a new object motion trajectory picture, the synthesized motion trajectory picture can be subjected to noise reduction processing, and also according to The current exposure of the picture is taken, and the composite ratio of the motion picture of the newly synthesized object is controlled to suppress the overexposure.

At the end of the shooting, the motion picture of each object is video-encoded, and processed into common video codes such as MPEG-4, H264, H263, and VP8 to generate an object motion track video. It can be understood by those skilled in the art that each time a new object motion trajectory picture is synthesized, the synthesized object motion trajectory picture is video-encoded, and an object motion trajectory video is generated based on each video-coded object motion trajectory picture.

In the method for photographing an object motion trajectory according to the embodiment, when detecting an object motion trajectory shooting instruction, the terminal acquires a current environmental parameter every preset exposure time, and when the current environment parameter satisfies the first preset condition, Take a picture and generate a corresponding object motion track video based on the captured picture to ensure that each picture captured can avoid interference and improve the quality of the object motion track video shooting.

In an embodiment, in order to improve the quality of the object motion trajectory picture, referring to FIG. 4, in the preferred embodiment of the object motion trajectory shooting method of the present invention, the step S22 includes:

Step S221, after the first picture is captured, the terminal captures a picture to determine whether the currently captured picture meets the second preset condition;

Step S222: When the currently captured picture satisfies the second preset condition, the terminal synthesizes the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture.

In this embodiment, the second preset condition may include that the currently photographed picture has no jitter and/or the currently photographed picture has no interference information and/or the currently photographed picture is not overexposed.

In the present embodiment, the interference information means that the interference information refers to other interferers that are considered by the object to be photographed. If the trajectory picture of the object motion is a star-track picture, the main interference information is the light source interference, such as the influence of the light source emitted by the object such as an airplane or an aerial searchlight. Whenever a picture is taken, the shooting terminal transports the currently captured picture with the last synthesized object. The moving track picture is compared, and when there is interference information in the currently captured picture, the interference information in the currently captured picture is acquired. When there is interference information in the motion track image of the last synthesized object, the interference information in the motion track image of the last synthesized object is acquired. The process of determining the specific interference information is as follows: the terminal acquires all adjacent pixels whose luminance values of the pixels in the currently captured picture are greater than a preset threshold, and forms an abnormal region; and acquires the motion track image of the last synthesized object and the currently captured image. Whether the pixel corresponding to the abnormal region of the picture has a pixel whose brightness value is greater than the preset threshold; in the last synthesized object motion track picture, the position corresponding to the abnormal area of the currently captured picture does not have a pixel brightness value greater than When the pixel of the preset threshold is described, the abnormal region is used as the interference information in the currently captured picture, that is, the current captured picture is determined to have interference.

In this embodiment, determining whether there is jitter in the currently captured picture, determining whether the currently captured picture has jitter can be compared with the last synthesized object motion track picture, for example, the currently captured picture and The image of the last synthesized object motion track is compared. At this time, it can be determined whether the current captured picture has a tilt or a significant mismatch compared with the last synthesized object motion track picture, for example, at the time of synthesis, the object The motion track is not connected.

Overexposure means that the brightness of the currently taken picture is too large. When the brightness of the currently captured picture is too large, it can be determined whether there is a large area of the pixel point brightness greater than the preset threshold, in the case of a large area of pixels. When the brightness is greater than the preset threshold, the current captured picture is overexposed.

The scheme improves the quality of the image of the motion track of the object by excluding the picture that does not satisfy the second preset condition during the process of image synthesis.

In an embodiment, in order to improve the quality of the image of the motion picture of the object, after the step S221, the step S22 further includes:

In this embodiment, when the currently captured picture does not satisfy the second preset condition, the end The end can delete the currently taken picture, or do nothing.

In an embodiment, in order to improve the quality of the motion picture of the object motion trajectory, in the first embodiment of the method for photographing the motion track of the object of the present invention, the step S23 includes:

At the end of the shooting, the terminal determines a picture that satisfies the second preset condition in the motion track image of each object synthesized during the shooting, and takes the picture that satisfies the second preset condition as the effective picture;

The terminal sorts each valid picture according to the generation order;

The terminal stores each valid picture to a preset storage path, and generates an object motion trajectory video based on the effective picture.

In this embodiment, the second preset condition may include that the currently photographed picture has no jitter and/or the currently photographed picture has no interference information and/or the currently photographed picture is not overexposed. In the present embodiment, the interference information means that the interference information refers to other interferers that are considered by the object to be photographed. In this embodiment, at the end of the shooting, the composite images are sequentially compared according to the generation order of the images to be combined to determine whether each of the to-be-composited images satisfies the second preset condition.

Correspondingly, the embodiment of the present invention further describes a computer storage medium, where the computer storage medium stores a computer program for performing the operations of FIG. 1, FIG. 2, FIG. 3, FIG. 4 in the embodiment of the present invention. The method of shooting the object motion trajectory.

The invention further provides an object motion trajectory photographing system of the invention.

Referring to FIG. 5, FIG. 5 is a schematic diagram of functional modules of a preferred embodiment of an object motion trajectory photographing system according to the present invention.

It should be emphasized that, for those skilled in the art, the functional block diagram shown in FIG. 5 is merely an exemplary diagram of a preferred embodiment, and those skilled in the art surround the functional modules of the object motion trajectory shooting system shown in FIG. 5. The function module can be easily supplemented by a new function module; the name of each function module is a custom name, which is only used to assist in understanding various program function blocks of the object motion trajectory photographing system, and is not used to limit the technical solution of the present invention. The core of the program is that each The function to be achieved by the function module of the custom name.

The object motion trajectory photographing system proposed in this embodiment includes:

The environment parameter obtaining module 10 is configured to acquire the current environmental parameter every preset exposure time when the object motion track shooting instruction is detected;

The photographing module 20 is configured to take a picture when the current environment parameter satisfies the first preset condition;

The terminal where the environmental parameter acquisition module 10 is located may set the current exposure time, ISO, resolution, exposure compensation, noise reduction and other camera parameters when the object motion trajectory shooting instruction is detected or before shooting, and the camera parameter may be automatically set by the terminal. Or the adjustment, the terminal where the environment parameter acquisition module 10 is located may also preset different parameters according to different object motion scenes over different regions, for the user to select a suitable object motion scene for shooting, or the environment parameter acquisition module 10 is located. The terminal automatically selects an appropriate object motion scene to shoot according to the state of the current starry sky. For example, the environment parameter obtaining module 10 includes: an interface display unit configured to display an object motion scene selection interface when the object motion trajectory shooting instruction is detected, so that the user selects a corresponding object based on the object motion scene selection interface currently displayed by the terminal. a motion scene; the locking unit is configured to: when detecting a selection instruction triggered by the user based on the object motion scene selection interface, the terminal locks an object motion scene corresponding to the selection instruction; and the parameter adjustment unit is configured to be based on the locked object The motion scene adjusts its shooting parameters; the environment parameter obtaining unit is configured to acquire the current environment parameter every preset exposure time.

The object motion trajectory shooting instruction may be triggered based on a physical shooting button, a virtual shooting button, a voice, a gesture, and a control command sent by a third-party control terminal on the terminal. When the terminal where the environment parameter acquisition module 10 is located receives the object motion track shooting instruction, the picture can be immediately taken, or the preset time length can be delayed to start shooting the picture, wherein delaying the preset time to start shooting the picture is beneficial to avoid the user pressing Take a picture when you shoot the button or trigger the virtual shooting button to shake the phone.

In this embodiment, the first preset condition may be that the current light intensity is less than the first preset threshold, or the current light intensity is less than the second preset threshold, and may be detected by a photosensitive sensor disposed near the lens. The light intensity in the current environment, when the light intensity in the current environment is greater than the first preset threshold, indicating that there is a lens of the strong light source illumination terminal in the current environment; when the light intensity in the current environment is less than the second preset threshold Indicates that the lens of the terminal may be blocked or an obstacle may pass.

The processing module 30 is configured to generate an object motion trajectory video based on the captured image.

In this embodiment, the manner in which the processing module 30 generates an object motion trajectory video based on the captured image includes:

1) Referring to FIG. 6 , FIG. 6 is a first embodiment of the process module 30 for generating an object motion trajectory video based on the captured image. The processing module 30 includes:

The first processing unit 31 is configured to use the first picture as the first synthesized object motion track picture when the first picture is captured;

The synthesizing unit 32 is configured to, after capturing the first picture, synthesize the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture;

The second processing unit 33 is configured to, when the shooting ends, store the synthesized plurality of object motion trajectory pictures to a preset storage path and generate an object motion trajectory video based on the plurality of object motion trajectory pictures synthesized during the shooting.

2) Referring to FIG. 7, FIG. 7 is a second embodiment of the processing module 30 for generating an object motion trajectory video based on the captured image, the processing module 30 includes:

The determining unit 34 is configured to determine, in the end of the shooting, a picture that meets the second preset condition in each of the captured pictures, and use the picture that meets the second preset condition as the effective picture;

The sorting unit 35 is configured to sort each valid picture according to the generation order;

The extracting unit 36 is configured to extract the captured picture according to the current sorting order;

The third processing unit 37 is configured to: when the first picture is extracted, use the first picture as the first synthesized object motion track picture;

The synthesizing unit 38 is configured to, after extracting the first picture, synthesize the currently extracted picture with the last synthesized object motion track picture to generate a new object motion track picture;

The third processing unit 37 is further configured to store the synthesized plurality of object motion trajectory pictures to a preset storage path and generate an object motion trajectory video based on the synthesized plurality of object motion trajectory pictures.

In this embodiment, the environment parameter obtaining module 10 of each picture captures the current environment parameter. When the current environment parameter satisfies the first preset condition, the shooting module 20 performs the image capturing to ensure the shooting. The quality of the picture. In this embodiment, the processing module 30 synthesizes the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture, including: the currently captured picture pixel and the last synthesized image. The pixels of the motion track image of the object are superimposed to generate a motion track image of the object synthesized last time; or, according to the brightness value information of the pixel in the currently captured image and the brightness value information of the pixel in the motion track image of the last synthesized object, A new synthetic object motion trajectory picture. In a preferred embodiment, the synthesizing unit generates a new object motion trajectory picture based on the pixel replacement manner. The specific synthesizing unit is as follows: the determining unit is configured to determine whether the brightness value of the pixel in the currently captured picture at the same position is greater than a luminance value of a pixel of a synthesized object motion trajectory picture; a synthesizing unit configured to determine, when determining that a luminance value of a pixel in a currently captured picture at the same position is greater than a luminance value of a pixel of the last synthesized object motion trajectory picture, Will be on The pixel in the motion track image of the synthesized object is replaced with the pixel of the corresponding position in the currently captured image, and a new motion picture of the object motion is generated.

In this embodiment, the preset exposure time is preferably 5 to 10 seconds. When synthesizing a new object motion trajectory picture, the synthesized motion trajectory picture can be subjected to noise reduction processing, and at the same time, according to the exposure degree of the current captured picture, the synthesis ratio of the motion picture of the newly synthesized object is controlled, and overexposure is suppressed.

In this embodiment, when the current shooting mode is the object motion track picture shooting mode, the processing module 30 may use the last picture to be combined as the object motion track picture at the end of the shooting; in the current shooting mode, the object motion track picture In the shooting mode, at the end of shooting, the processing module 30 performs video encoding processing on each picture to be combined, and processes it into common video encodings such as MPEG-4, H264, H263, and VP8 to generate an object motion track video. It can be understood by those skilled in the art that each time a new object motion track picture is synthesized, the processing module 30 performs video coding on the synthesized object motion track picture, and generates object motion based on each video encoded object motion track picture. Track video.

In the object motion trajectory photographing system of the present embodiment, when detecting an object motion trajectory shooting instruction, the terminal acquires current environmental parameters every preset exposure time, and when the current environmental parameter satisfies the first preset condition, Take a picture and generate a corresponding object motion track video based on the captured picture to ensure that each picture captured can avoid interference and improve the quality of the object motion track video shooting.

In an embodiment, in order to improve the quality of the motion picture of the object motion trajectory, in the preferred embodiment of the object motion trajectory imaging system of the present invention, the synthesizing unit 32 includes:

In the present embodiment, the interference information means that the interference information refers to other interferers that are considered by the object to be photographed. If the trajectory picture of the object motion is a star-track picture, the main interference information is the light source interference, such as the influence of the light source emitted by the object such as an airplane or an aerial searchlight. Each time a picture is captured, the determining unit compares the currently captured picture with the last synthesized object motion track picture to determine whether the currently captured picture satisfies the second preset condition, in the currently captured picture. When there is interference information, it is determined that the currently photographed picture does not satisfy the second preset condition. The process of determining the specific interference information is as follows: the acquiring unit acquires all adjacent pixels in which the brightness value of the pixel in the currently captured picture is greater than a preset threshold, forms an abnormal region, and acquires the image of the last synthesized object motion track and the current shooting Whether there is a pixel whose pixel brightness value is greater than the preset threshold value in the position corresponding to the abnormal area of the picture; in the last synthesized object motion track picture, there is no pixel brightness value corresponding to the abnormal area of the currently captured picture When the pixel is larger than the preset threshold, the abnormal region is used as the interference information in the currently captured picture, that is, the current captured picture is determined to have interference.

In this embodiment, determining whether there is jitter in the currently captured picture, determining whether the currently captured picture has jitter can be compared with the last synthesized object motion track picture, for example, the currently captured picture and The image of the last synthesized object motion track is compared. At this time, it can be determined whether the current captured picture has a tilt or a significant mismatch compared with the picture to be combined. For example, when the image is synthesized, the motion track of the object is not connected.

In an embodiment, to improve the quality of the image of the motion picture of the object, the synthesizing unit 32 further includes:

In this embodiment, when the currently captured picture does not satisfy the second preset condition, the terminal may delete the currently captured picture, or may not perform any processing.

In an embodiment, in order to improve the quality of the motion picture of the object motion trajectory, in the preferred embodiment of the object motion trajectory imaging system of the present invention, the processing module 30 includes:

a determining unit configured to determine, in the end of the shooting, a picture that satisfies the second preset condition in the motion track image of each object synthesized during the shooting, and use the picture that meets the second preset condition as the effective picture;

a sorting unit configured to sort each valid picture in a generation order;

The processing unit stores each valid picture to a preset storage path, and generates an object motion trajectory video based on the effective picture.

In this embodiment, the second preset condition may include that the currently photographed picture has no jitter and/or the currently photographed picture has no interference information and/or the currently photographed picture is not overexposed. In the present embodiment, the interference information means that the interference information refers to other interferers that are considered by the object to be photographed. In this embodiment, at the end of the shooting, the determining unit sequentially compares the synthesized pictures according to the order in which the pictures to be combined are generated, to determine whether each of the pictures to be combined satisfies the second preset condition.

In an actual application, each subunit of the environment parameter obtaining module 10, the photographing module 20, the processing module 30, and the environment parameter obtaining module 10, and each subunit of the processing module 30 may be used by the object motion trajectory shooting system or a central processing unit (CPU) of a device to which the object motion trajectory photographing system belongs, a microprocessor (MPU, a Micro Processor Unit), a digital signal processor (DSP), or a field programmable gate array (FPGA, Field Programmable Gate Array) and other implementations.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or system. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or system that includes the element, without further limitation.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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

Industrial applicability

In the embodiment of the present invention, when detecting an object motion trajectory shooting instruction, the terminal acquires a current environmental parameter every preset exposure time, and when the current environmental parameter meets the first preset condition, takes a picture; The terminal generates an object motion trajectory video based on the captured image; thus, it can ensure that each picture taken can avoid interference, and improve the motion track of the object. quality.

Claims

A method for photographing an object motion trajectory, characterized in that the method comprises:

When detecting an object motion trajectory shooting instruction, the terminal acquires the current environmental parameter every preset exposure time, and takes a picture when the current environmental parameter satisfies the first preset condition;

The terminal generates an object motion trajectory video based on the captured picture.
The method of claim 1, wherein the terminal generates an object motion trajectory video based on the captured picture, comprising:

When the first picture is taken, the first picture is taken as the first synthesized object motion track picture;

After the first picture is captured, the terminal combines the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture for each picture captured;

At the end of the shooting, the terminal stores the synthesized plurality of object motion trajectory pictures to a preset storage path and generates an object motion trajectory video based on the plurality of object motion trajectory pictures synthesized during the shooting.
The method according to claim 2, wherein, after the first picture is captured, the terminal combines the currently captured picture with the last synthesized object motion track picture for each picture captured. Generate a new image of the object's motion track, including:

After the first picture is captured, the terminal captures a picture to determine whether the currently captured picture meets the second preset condition;

When the currently captured picture satisfies the second preset condition, the terminal synthesizes the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture.
The method according to claim 3, wherein, after the first picture is captured, the terminal captures a picture to determine whether the currently captured picture satisfies the second preset After the steps of the piece, it also includes:

When the currently captured picture does not satisfy the second preset condition, the terminal deletes the currently taken picture.
The method of claim 1, wherein the terminal generates an object motion trajectory video based on the captured picture, comprising:

At the end of the shooting, the terminal determines a picture that meets the second preset condition in each of the captured pictures, and takes a picture that satisfies the second preset condition as a valid picture;

The terminal sorts each valid picture according to the generation order, and extracts the captured picture according to the current arrangement order;

When extracting the first picture, the terminal uses the first picture as the first synthesized object motion track picture;

After extracting the first picture, the terminal extracts a picture, and combines the currently extracted picture with the last synthesized object motion track picture to generate a new object motion track picture;

The terminal stores the synthesized plurality of object motion trajectory images to a preset storage path and generates an object motion trajectory video based on the synthesized plurality of object motion trajectory pictures.
The method of claim 1, wherein the method further comprises: upon detecting an object motion trajectory shooting instruction or before shooting, the method further comprising:

The terminal sets the photographing parameter, wherein the photographing parameter is automatically set or adjusted by the terminal.
The method of claim 1, wherein the first predetermined condition is that the current light intensity is greater than the first predetermined threshold, or the current light intensity is less than the second predetermined threshold.
The method of claim 2, wherein the manner in which the currently captured picture is combined with the last synthesized motion track picture to generate a new object motion track picture comprises:

Superimposing the currently captured picture pixel and the pixel of the last synthesized object motion track picture to generate a new object motion track picture; or, according to the currently captured picture image The brightness value information of the element and the brightness value information of the pixel in the last synthesized object motion track picture generate a new object motion track picture.
The method of claim 3 wherein said second predetermined condition comprises:

The currently captured picture is not dithered and/or the currently captured picture has no interfering information and/or the currently taken picture is not overexposed.
The method of claim 9, wherein the process of determining the interference information comprises:

Obtaining, by the terminal, all adjacent pixels whose luminance values of pixels in the currently captured picture are greater than a preset threshold, forming an abnormal region;

Obtaining, in the last motion track image of the object, a position corresponding to the abnormal region of the currently captured picture, whether there is a pixel whose pixel brightness value is greater than the preset threshold;

When the pixel corresponding to the abnormal region of the currently captured image does not have a pixel whose brightness value is greater than the preset threshold in the last synthesized object motion track image, the abnormal region is used as the currently captured image. Interference information to determine that there is interference in the currently captured picture.
An object motion trajectory photographing system, the system comprising:

The environment parameter obtaining module is configured to acquire the current environmental parameter every preset exposure time when the object motion track shooting instruction is detected;

a shooting module configured to take a picture when the current environmental parameter meets the first preset condition;

The processing module is configured to generate an object motion trajectory video based on the captured image.
The system of claim 11 wherein said processing module comprises:

a first processing unit configured to: when the first picture is captured, use the first picture as the first synthesized object motion track picture;

a synthesizing unit configured to, after capturing the first picture, synthesize a currently taken picture with the last synthesized object motion track picture to generate a new object motion track picture;

The second processing unit is configured to, when the shooting ends, store the synthesized plurality of object motion trajectory images to a preset storage path and generate an object motion trajectory video based on the plurality of object motion trajectory images synthesized during the shooting.
The system of claim 12 wherein said synthesizing unit comprises:

Determining a subunit, configured to determine whether the currently photographed picture satisfies a second preset condition after each picture is captured after the first picture is captured;

And a synthesizing sub-unit configured to synthesize the currently captured picture with the last synthesized object motion track picture to generate a new object motion track picture when the currently captured picture satisfies the second preset condition.
The system of claim 13 wherein said synthesizing unit further comprises:

The subunit is deleted, and is configured to delete the currently photographed picture when the currently photographed picture does not satisfy the second preset condition.
The system of claim 11 wherein said processing module comprises:

a determining unit configured to determine, in the end of the shooting, a picture that meets the second preset condition in each of the captured pictures, and use the picture that meets the second preset condition as the effective picture;

a sorting unit configured to sort each valid picture in a generation order;

The extracting unit is configured to extract the captured image according to the current sorting order;

a third processing unit configured to: when the first picture is extracted, use the first picture as the first synthesized object motion track picture;

a synthesizing unit configured to, after extracting the first picture, synthesize the currently extracted picture with the last synthesized object motion track picture to generate a new object motion track picture;

The third processing unit is further configured to store the synthesized plurality of object motion trajectory pictures to a preset storage path and generate an object motion trajectory video based on the synthesized plurality of object motion trajectory pictures.
The system of claim 11, wherein the environment parameter obtaining module is further configured to:

Set the camera parameters when an object motion track shooting command is detected or before shooting.
The system of claim 11 wherein the first predetermined condition is that the current light intensity is greater than the first predetermined threshold or the current light intensity is less than the second predetermined threshold.
The system of claim 12, wherein the synthesizing unit is further configured to:

Superimposing the currently captured picture pixel and the pixel of the last synthesized object motion track picture to generate a new object motion track picture; or, according to the brightness value information of the pixel in the currently captured picture and the motion of the last synthesized object The brightness value information of the pixels in the track picture generates a new object motion track picture.
The system of claim 13 wherein said second predetermined condition comprises:

The currently captured picture is not dithered and/or the currently captured picture has no interfering information and/or the currently taken picture is not overexposed.
The system of claim 19 wherein said synthesizing subunit is further configured to:

Obtaining all adjacent pixels in the currently captured picture whose brightness value is greater than a preset threshold, forming an abnormal region;

Obtaining, in the last motion track image of the object, a position corresponding to the abnormal region of the currently captured picture, whether there is a pixel whose pixel brightness value is greater than the preset threshold;

When the pixel corresponding to the abnormal region of the currently captured image does not have a pixel whose brightness value is greater than the preset threshold in the last synthesized object motion track image, the abnormal region is used as the currently captured image. Interference information to determine that there is interference in the currently captured picture.
A computer storage medium storing computer executable instructions for performing the object motion trajectory photographing method according to any one of claims 1 to 10.