WO2016015544A1 - Method and device for shooting track of moving object - Google Patents

Method and device for shooting track of moving object Download PDF

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Publication number
WO2016015544A1
WO2016015544A1 PCT/CN2015/083196 CN2015083196W WO2016015544A1 WO 2016015544 A1 WO2016015544 A1 WO 2016015544A1 CN 2015083196 W CN2015083196 W CN 2015083196W WO 2016015544 A1 WO2016015544 A1 WO 2016015544A1
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Prior art keywords
trajectory
image
moving object
video
track
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PCT/CN2015/083196
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French (fr)
Chinese (zh)
Inventor
邹明双
里强
苗雷
崔小辉
魏宇星
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努比亚技术有限公司
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Publication of WO2016015544A1 publication Critical patent/WO2016015544A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

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  • This paper relates to the field of camera technology, and in particular to a method and a device for shooting a trajectory of a moving object.
  • the shooting of the object's trajectory is gradually loved by people, such as the shooting of the star track, but the movement of the stars is generally not obvious, it takes hours or even longer to shoot, that is, the shooting of the star track is It can't be completed in a short time, which will cause the user to take too long, and due to long-time shooting, it may be affected by many objective factors, such as weather or light interference, resulting in unsatisfactory shooting results.
  • Embodiments of the present invention provide a method and apparatus for shooting a moving object trajectory to solve the technical problem of how to shorten the shooting time of a trajectory of a moving object.
  • an embodiment of the present invention provides a method for photographing a trajectory of a moving object, wherein the method for photographing the trajectory of the moving object includes the following steps:
  • the image of the moving object is collected by the camera;
  • the step of performing a complement processing on the motion trajectory of the moving object based on the image, and obtaining the first trajectory image or the first trajectory video of the moving object includes:
  • the first trajectory image or the first trajectory video is obtained.
  • the step of calculating the trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video comprises:
  • the star track data of the future motion is acquired based on the circular trajectory.
  • the step of generating the second trajectory image of the moving object according to the image includes:
  • the current image and the previous composite image are sequentially subjected to luminance synthesis processing, and the last synthesized image is used as the second trajectory image.
  • the step of generating the second trajectory video of the moving object according to the image includes:
  • the second trajectory video is generated by the video encoded processed composite image.
  • the trajectory of the moving object is a star track.
  • an embodiment of the present invention further provides a photographing apparatus for a trajectory of a moving object, and the photographing apparatus of the trajectory of the moving object includes:
  • the acquisition module is configured to collect an image of the moving object through the camera after the shooting starts;
  • the completion module is configured to perform a complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
  • the completion module includes:
  • a generating unit configured to generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object
  • a calculating unit configured to calculate trajectory data of a future motion of the moving object according to the second trajectory image or the second trajectory video
  • a supplementing unit configured to add the trajectory data of the future motion of the moving object to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
  • the calculating unit includes:
  • Calculating a sub-unit configured to acquire a circular arc-shaped trajectory in the second trajectory image or the second trajectory video, and calculate a circular trajectory according to the circular arc-shaped trajectory;
  • the generating unit is configured to generate a second trajectory image of the moving object according to the image by:
  • the current image and the previous composite image are sequentially subjected to luminance synthesis processing, and the last synthesized image is used as the second trajectory image.
  • the generating unit includes:
  • a synthesis subunit configured to sequentially perform brightness synthesis processing on the current image and the previous composite image to obtain all the composite images
  • a coding subunit configured to perform video coding processing on all of the composite images
  • Generating a subunit configured to generate the second trajectory video from the video encoded processed composite image.
  • the trajectory of the moving object is a star track.
  • an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.
  • the method and device for shooting a trajectory of a moving object provided by the embodiment of the present invention, the image of a moving object such as a star is captured by the camera in a short time, and the captured image is synthesized to obtain a star-track image with a small motion amplitude or
  • the star-track video calculated by synthesizing the star-track image or the star-track video, can obtain the future trajectory, and further complement the calculated trajectory into the synthesized star-track image or the star-track video, which can clearly reflect the star.
  • the star-track image of the track or the star-track video, the embodiment of the invention can shorten the time of shooting the trajectory of the moving object, realize fast shooting, and improve the user experience.
  • FIG. 1 is a flow chart showing an embodiment of a method for photographing a trajectory of a moving object according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a refinement process of step S102 in FIG. 1;
  • step S1021 in FIG. 2 is a schematic diagram showing the refinement process of step S1021 in FIG. 2;
  • FIG. 4 is a schematic diagram of functional modules of an embodiment of an apparatus for photographing a trajectory of a moving object according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a refinement function module of the completion module in FIG. 4;
  • FIG. 6 is a schematic diagram of a refinement function module of the generating unit module in FIG. 5.
  • An embodiment of the present invention provides a method for photographing a trajectory of a moving object.
  • a method for photographing a trajectory of the moving object includes:
  • Step S101 after the start of shooting, the photographing device of the trajectory of the moving object collects an image of the moving object through the camera;
  • the moving object is, for example, a star or a moon, and the like, and may be other moving objects having a regular motion and a slow motion. All moving objects in the embodiment of the present invention are exemplified by stars.
  • a star track shooting mode can be added to the photographing device, and the user can select the star track shooting mode or the normal shooting mode to perform shooting, and during the shooting process, the camera cannot move, that is, shooting at the same position.
  • the star track shooting mode combined with the requirements of the star track shooting scene, preset the exposure time, ISO, resolution, exposure compensation, noise reduction and other parameters, and can also preset different parameters according to different starry sky scenes over different regions. For the user to choose when shooting.
  • the camera of the camera starts to shoot the star track, and the camera captures an image every preset time, which is equivalent to the preset time. Exposure time, optional 5 ⁇ 10S.
  • the captured image may be buffered so that the image is read from the cache for synthesis in a subsequent step, or the acquired image may be directly sent to a subsequent step for image synthesis.
  • the shooting of the star track takes a long time to get the trajectory image that can clearly reflect the star track. Or track video.
  • the camera of the photographing apparatus in this embodiment captures a part of the image in a short time, such as only taking one minute or three minutes to realize fast shooting.
  • Step S102 the photographing device of the trajectory of the moving object performs complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
  • the image of the camera portion of the camera is synthesized, and a star track image or a star track video with a small curvature can be obtained.
  • the star-track image or the star-track video is shot in a short period of time, and the motion is small. Therefore, the human eye cannot see the star track, that is, the effect of the star track cannot be reflected.
  • the synthesized star track image or the star track video can be analyzed.
  • the star track is circular, so that the star track image obtained by the synthesis or the track of the star track video can be calculated. The trajectory of future sports.
  • the synthesized star-track image or the star-track video is further complemented, and a star-track image or a star-track video capable of clearly reflecting the star-track can be obtained.
  • the embodiment is not limited to the shooting of the star track, and may also be the shooting of other moving objects, such as the trajectory shooting of the moon.
  • the present embodiment captures an image of a moving object such as a star in a short time by a camera, and synthesizes the captured image to obtain a star-track image or a star-track video with a small motion amplitude, and a star obtained by the synthesis.
  • the track image or the star track video is calculated to obtain the future trajectory, and the calculated trajectory is further complemented into the synthesized star track image or the star track video to obtain a star track image or a star track video capable of clearly reflecting the star track.
  • the time for photographing the trajectory of the moving object can be shortened, the fast shooting can be realized, and the user experience can be improved.
  • the foregoing step S102 includes:
  • Step S1021 Generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
  • Step S1022 Calculate trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video;
  • step S1023 the trajectory data of the future motion of the moving object is added to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
  • the photographing device directly receives the collected image, or reads the image from the cache for image synthesis, resets the cache, and empties the data therein to provide space for subsequent data.
  • the imaging device performs image synthesis according to the current image and the brightness information of the past image, including: performing brightness synthesis processing on the current image and the previous composite image in sequence: at the same position of the image, the pixel with the current image is brighter Replaces the darker pixels in the last composite image. Since the camera continuously captures images, the composite image is also continuously generated. The composite image is actually a star-track image, and the composite image at different times shows the star-track effect at different times.
  • the first captured image is the first image
  • the next captured image is the second image
  • comparing the pixels of the first image with the pixels of the second image if the brightness of the second image is greater than the brightness of the first image, extracting the pixels of the second image to replace the pixels corresponding to the position of the first image, replacing The latter first image is used as the previous composite image described above.
  • the third image is taken, the third image is used as the current image, and at the same position, the pixel at the position where the third image is brighter is replaced with the previous composite image, and so on, and the last image obtained is used as the present embodiment.
  • the second trajectory image of the example is used as the current image
  • the pixel at the position where the third image is brighter is replaced with the previous composite image, and so on
  • the last image obtained is used as the present embodiment.
  • the second trajectory video needs to perform video encoding processing and the like on the composite image.
  • a trajectory with a small motion amplitude can be acquired.
  • the trajectory of the segment is an arc
  • the camera calculates the arc of the segment by calculating the arc of the segment, and the circle is a complete star track.
  • two different chords on the arc can be arbitrarily taken, and the intersection of the perpendicular lines of the two chords is the center of the circle where the arc is located, and the circle can be determined by the center of the circle.
  • Shape that is, determine the star track.
  • This embodiment removes the remaining portion of the circular arc, which is the trajectory of the future movement of the star.
  • the first trajectory image or the first trajectory video may be obtained according to the setting of the user, that is, the length of the trajectory in the first trajectory image or the first trajectory video is set by the user as the trajectory data, which may be the entire circle, or may be It is an arc that can be clearly seen by the human eye.
  • the trajectory data is added to the second trajectory image or the second trajectory video, processed by other brightness or the like to obtain a first trajectory image or a first trajectory video.
  • the step of generating a second trajectory video of the moving object according to the image in the above step S1021 include:
  • Step S10211 sequentially performing brightness synthesis processing on the current image and the previous composite image to obtain all the composite images
  • Step S10212 performing video encoding processing on all of the composite images
  • Step S10213 Generate the second track video by using the video encoded processed composite image.
  • the process of performing the brightness synthesis process on the current image and the previous composite image is the same as that in the previous embodiment.
  • the difference is that the first image and all other composite images, that is, the first The image and all composite images are used as the material for the star track video.
  • the composite image or the intermittent captured composite image can be continuously captured.
  • Continuously capturing a composite image means that each time a composite image is synthesized, one is captured for video encoding processing, that is, all synthesized images are used as the material of the star track video.
  • the composite image and the captured composite image are subjected to video encoding processing in synchronization with two threads. Since the composite image is subjected to video encoding processing while shooting, it is not necessary to store the synthesized composite image.
  • Interval grabbing refers to the selective capture of a portion of a composite image as a material for a star-track video.
  • the interval mode can be a manual interval mode or an automatic interval mode.
  • the manual interval mode refers to providing an operation interface for the user to click to trigger the captured image data, such as clicking the screen to capture the currently synthesized composite image (when there is a preview, that is, the current preview image);
  • the automatic interval mode refers to The composite image is captured at a preset time interval, that is, a composite image is captured every preset time.
  • the interval for capturing the composite image may be longer than the interval at which the camera captures the image (ie, the exposure time), avoiding capturing the same composite image two or more times, or reducing the size of the final synthesized video file.
  • a composite image can be captured every 1 to 2 Min, which is the current composite image and the current track image. Then, the captured composite image is subjected to video encoding processing, and processed into common video encoding such as MPEG-4, H264, H263, VP8, etc., in preparation for subsequent generation of video files, and method and related technology for video encoding processing of composite images. The same, no longer repeat here.
  • An embodiment of the present invention further provides a photographing device for a trajectory of a moving object.
  • the photographing device for the trajectory of the moving object includes:
  • the collecting module 101 is configured to collect an image of the moving object through the camera after the shooting starts;
  • the moving object is, for example, a star or a moon, and the like, and may also have other motions.
  • the moving objects in the embodiments of the present invention all take stars as an example.
  • a star track shooting mode can be added to the photographing device, and the user can select the star track shooting mode or the normal shooting mode to shoot, and during the shooting process, the camera cannot move, that is, shooting in the same position.
  • the star track shooting mode combined with the requirements of the star track shooting scene, preset the exposure time, ISO, resolution, exposure compensation, noise reduction and other parameters, and can also preset different parameters according to different starry sky scenes over different regions. For the user to choose when shooting.
  • the camera of the camera starts to shoot the star track, and the camera captures an image every preset time, which is equivalent to the preset time. Exposure time, optional 5 ⁇ 10S.
  • the captured image may be buffered so that the image is read from the cache for synthesis in a subsequent step, or the acquired image may be directly sent to a subsequent step for image synthesis.
  • the shooting of the star track takes a long time to get a track image or track video that can clearly reflect the star track.
  • the camera of the photographing apparatus in this embodiment captures a part of the image in a short time, such as only taking one minute or three minutes to realize fast shooting.
  • the completion module 102 is configured to perform a complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
  • the image of the camera portion of the camera is synthesized, and a star track image or a star track video with a small curvature can be obtained.
  • the star-track image or the star-track video is shot in a short period of time, and the motion is small. Therefore, the human eye cannot see the star track, that is, the effect of the star track cannot be reflected.
  • the synthesized star track image or the star track video can be analyzed.
  • the star track is circular, so that the star track image obtained by the synthesis or the track of the star track video can be calculated. The trajectory of future sports.
  • the synthesized star-track image or the star-track video is further complemented, and a star-track image or a star-track video capable of clearly reflecting the star-track can be obtained.
  • the embodiment is not limited to the shooting of the star track, and may also be the shooting of other moving objects, such as the trajectory shooting of the moon.
  • the completion module 102 includes:
  • the generating unit 1021 is configured to generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
  • the calculating unit 1022 is configured to calculate trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video;
  • the supplementing unit 1023 is configured to add the trajectory data of the future motion of the moving object to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
  • the photographing device directly receives the collected image, or reads the image from the cache for image synthesis, resets the cache, and empties the data therein to provide space for subsequent data.
  • the imaging device performs image synthesis according to the current image and the brightness information of the past image, including: performing brightness synthesis processing on the current image and the previous composite image in sequence: at the same position of the image, the pixel with the current image is brighter Replaces the darker pixels in the last composite image. Since the camera continuously captures images, the composite image is also continuously generated. The composite image is actually a star-track image, and the composite image at different times shows the star-track effect at different times.
  • the first captured image is the first image
  • the next captured image is the second image
  • comparing the pixels of the first image with the pixels of the second image if the brightness of the second image is greater than the brightness of the first image, extracting the pixels of the second image to replace the pixels corresponding to the position of the first image, replacing The latter first image is used as the previous composite image described above.
  • the third image is taken, the third image is used as the current image, and at the same position, the pixel at the position where the third image is brighter is replaced with the previous composite image, and so on, and the last image obtained is used as the present embodiment.
  • the second trajectory image of the example is used as the current image
  • the pixel at the position where the third image is brighter is replaced with the previous composite image, and so on
  • the last image obtained is used as the present embodiment.
  • the second trajectory video needs to perform video encoding processing and the like on the composite image.
  • a trajectory with a small motion amplitude can be acquired.
  • the trajectory of the segment is an arc
  • the camera calculates the arc of the segment by calculating the arc of the segment, and the circle is a complete star track.
  • two different chords on the arc can be arbitrarily taken, and the intersection of the perpendicular lines of the two chords is the center of the circle where the arc is located, and the circle can be determined by the center of the circle.
  • Shape that is, determine the star track.
  • This embodiment removes the remaining portion of the circular arc, which is the trajectory of the future movement of the star.
  • the first trajectory image or the first trajectory video may be obtained according to the setting of the user, that is, the length of the trajectory in the first trajectory image or the first trajectory video is set by the user as the trajectory data, which may be the entire circle, or may be It is an arc that can be clearly seen by the human eye.
  • the trajectory data is added to the second trajectory image or the second trajectory video, processed by other brightness or the like to obtain a first trajectory image or a first trajectory video.
  • the generating unit 1021 when generating the second trajectory video of the moving object, includes:
  • the synthesizing subunit 10211 is configured to sequentially perform a luminance synthesizing process on the current image and the previous composite image to obtain all the synthesized images;
  • the encoding subunit 10212 is configured to perform video encoding processing on all of the composite images
  • the generating subunit 10213 is configured to generate the second trajectory video from the video encoded processed composite image.
  • the process of performing the brightness synthesis process on the current image and the previous composite image is the same as that in the previous embodiment.
  • the difference is that the first image and all other composite images, that is, the first The image and all composite images are used as the material for the star track video.
  • the composite image or the intermittent captured composite image can be continuously captured.
  • Continuously capturing a composite image means that each time a composite image is synthesized, one is captured for video encoding processing, that is, all synthesized images are used as the material of the star track video.
  • the composite image and the captured composite image are subjected to video encoding processing in synchronization with two threads. Since the composite image is subjected to video encoding processing while shooting, it is not necessary to store the synthesized composite image.
  • Interval grabbing refers to the selective capture of a portion of a composite image as a material for a star-track video.
  • the interval mode can be a manual interval mode or an automatic interval mode.
  • the manual interval mode refers to providing an operation interface for the user to click to trigger the captured image data, such as clicking the screen to capture the currently synthesized composite image (when there is a preview, that is, the current preview image);
  • the automatic interval mode refers to The composite image is captured at a preset time interval, that is, a composite image is captured every preset time.
  • the interval for capturing the composite image may be longer than the interval at which the camera captures the image (ie, the exposure time), avoiding capturing the same composite image two or more times, or reducing the size of the final synthesized video file.
  • a composite image can be captured every 1 to 2 Min, which is the current composite image and the current track image. Then video encoding the captured composite image
  • the method is the same as the related art, and the method for the video encoding processing of the composite image is the same as that of the related art, and is not described here.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the above technical solution can shorten the time of shooting the trajectory of the moving object, realize fast shooting, and improve the user experience.

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Abstract

A method and device for shooting a track of a moving object. The method for shooting a track of a moving object comprises the following steps: acquiring an image of a moving object through a camera as the shooting is started; and completing the moving track of the moving object on the basis of the image so as to obtain a first track image or a first track video of the moving object. By means of the technical solution, the time of shooting the track of the moving object can be reduced, and quick shooting can be realized.

Description

运动物体的轨迹的拍摄方法及装置Method and device for shooting trajectory of moving object 技术领域Technical field
本文涉及摄像技术领域，尤其涉及运动物体的轨迹的拍摄方法及装置。This paper relates to the field of camera technology, and in particular to a method and a device for shooting a trajectory of a moving object.
背景技术Background technique
随着手机、平板电脑等移动设备的摄像硬件的不断提升，移动设备的拍摄功能也越来越多样化，用户对移动设备的拍摄要求也越来越高。With the continuous improvement of the camera hardware of mobile devices such as mobile phones and tablet computers, the shooting functions of mobile devices are becoming more and more diverse, and the requirements for shooting of mobile devices are becoming higher and higher.
在移动设备的拍摄中，物体的运动轨迹的拍摄逐渐受到人们的喜爱，如星轨的拍摄等，但是，星星的运动一般不明显，需要几小时甚至更长时间拍摄，即星轨的拍摄在短时间内不能完成，这样会导致用户拍摄的时间过长，且由于长时间拍摄，可能会受到很多客观因素的影响，如天气或者光线干扰等，导致拍摄效果不理想。In the shooting of mobile devices, the shooting of the object's trajectory is gradually loved by people, such as the shooting of the star track, but the movement of the stars is generally not obvious, it takes hours or even longer to shoot, that is, the shooting of the star track is It can't be completed in a short time, which will cause the user to take too long, and due to long-time shooting, it may be affected by many objective factors, such as weather or light interference, resulting in unsatisfactory shooting results.
发明内容Summary of the invention
本发明实施例提供了一种运动物体轨迹的拍摄方法及装置，以解决如何缩短拍摄运动物体的轨迹的拍摄时间的技术问题。Embodiments of the present invention provide a method and apparatus for shooting a moving object trajectory to solve the technical problem of how to shorten the shooting time of a trajectory of a moving object.
为实现上述目的，本发明实施例提供一种运动物体的轨迹的拍摄方法，其特征在于，所述运动物体的轨迹的拍摄方法包括以下步骤：In order to achieve the above object, an embodiment of the present invention provides a method for photographing a trajectory of a moving object, wherein the method for photographing the trajectory of the moving object includes the following steps:
拍摄开始后，通过摄像头采集运动物体的图像；After the shooting starts, the image of the moving object is collected by the camera;
基于所述图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频。Completing the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
可选地，所述基于图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频的步骤包括：Optionally, the step of performing a complement processing on the motion trajectory of the moving object based on the image, and obtaining the first trajectory image or the first trajectory video of the moving object includes:
根据所述采集的运动物体的图像生成所述运动物体的第二轨迹图像或第二轨迹视频；Generating a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据；Calculating trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video;
将所述运动物体未来运动的轨迹数据补充到所述第二轨迹图像或第二轨 迹视频中，得到所述第一轨迹图像或第一轨迹视频。Adding trajectory data of the future motion of the moving object to the second trajectory image or the second track In the trace video, the first trajectory image or the first trajectory video is obtained.
可选地，所述根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据的步骤包括：Optionally, the step of calculating the trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video comprises:
获取所述第二轨迹图像或第二轨迹视频中的圆弧形的轨迹，根据所述圆弧形的轨迹计算得到一圆形的轨迹；Obtaining a circular arc-shaped trajectory in the second trajectory image or the second trajectory video, and calculating a circular trajectory according to the circular arc trajectory;
基于所述圆形的轨迹获取未来运动的星轨数据。The star track data of the future motion is acquired based on the circular trajectory.
可选地，所述根据所述图像生成所述运动物体的第二轨迹图像的步骤包括：Optionally, the step of generating the second trajectory image of the moving object according to the image includes:
依次将当前图像与上一合成图像进行亮度合成处理，以最后合成得到的一张图像作为所述第二轨迹图像。The current image and the previous composite image are sequentially subjected to luminance synthesis processing, and the last synthesized image is used as the second trajectory image.
可选地，所述根据所述图像生成所述运动物体的第二轨迹视频的步骤包括：Optionally, the step of generating the second trajectory video of the moving object according to the image includes:
依次将当前图像与上一合成图像进行亮度合成处理，得到所有的合成图像；Performing brightness synthesis processing on the current image and the previous composite image in turn to obtain all the composite images;
对所有的所述合成图像进行视频编码处理；Performing a video encoding process on all of the composite images;
将视频编码处理后的合成图像生成所述第二轨迹视频。The second trajectory video is generated by the video encoded processed composite image.
可选地，所述运动物体的轨迹为星轨。Optionally, the trajectory of the moving object is a star track.
此外，为实现上述目的，本发明实施例还提供一种运动物体的轨迹的拍摄装置，所述运动物体的轨迹的拍摄装置包括：In addition, in order to achieve the above object, an embodiment of the present invention further provides a photographing apparatus for a trajectory of a moving object, and the photographing apparatus of the trajectory of the moving object includes:
采集模块，设置为拍摄开始后，通过摄像头采集运动物体的图像；The acquisition module is configured to collect an image of the moving object through the camera after the shooting starts;
补全模块，设置为基于所述图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频。The completion module is configured to perform a complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
可选地，所述补全模块包括：Optionally, the completion module includes:
生成单元，设置为根据所述采集的运动物体的图像生成所述运动物体的第二轨迹图像或第二轨迹视频；a generating unit, configured to generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
计算单元，设置为根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据；a calculating unit, configured to calculate trajectory data of a future motion of the moving object according to the second trajectory image or the second trajectory video;
补充单元，设置为将所述运动物体未来运动的轨迹数据补充到所述第二轨迹图像或第二轨迹视频中，得到所述第一轨迹图像或第一轨迹视频。And a supplementing unit configured to add the trajectory data of the future motion of the moving object to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
可选地，所述计算单元包括： Optionally, the calculating unit includes:
计算子单元，设置为获取所述第二轨迹图像或第二轨迹视频中的圆弧形的轨迹，根据所述圆弧形的轨迹计算得到一圆形的轨迹；Calculating a sub-unit, configured to acquire a circular arc-shaped trajectory in the second trajectory image or the second trajectory video, and calculate a circular trajectory according to the circular arc-shaped trajectory;
获取子单元，设置为基于所述圆形的轨迹获取未来运动的星轨数据。Obtaining a subunit, configured to acquire star track data of future motion based on the circular trajectory.
可选地，Optionally,
所述生成单元是设置为通过如下方式实现根据所述图像生成所述运动物体的第二轨迹图像：The generating unit is configured to generate a second trajectory image of the moving object according to the image by:
依次将当前图像与上一合成图像进行亮度合成处理，以最后合成得到的一张图像作为所述第二轨迹图像。The current image and the previous composite image are sequentially subjected to luminance synthesis processing, and the last synthesized image is used as the second trajectory image.
可选地，Optionally,
所述生成单元包括：The generating unit includes:
合成子单元，设置为依次将当前图像与上一合成图像进行亮度合成处理，得到所有的合成图像；a synthesis subunit, configured to sequentially perform brightness synthesis processing on the current image and the previous composite image to obtain all the composite images;
编码子单元，设置为对所有的所述合成图像进行视频编码处理；a coding subunit, configured to perform video coding processing on all of the composite images;
生成子单元，设置为将视频编码处理后的合成图像生成所述第二轨迹视频。Generating a subunit, configured to generate the second trajectory video from the video encoded processed composite image.
可选地，所述运动物体的轨迹为星轨。Optionally, the trajectory of the moving object is a star track.
此外，为实现上述目的，本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述的方法。In addition, in order to achieve the above object, an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.
本发明实施例提供的一种运动物体的轨迹的拍摄方法及装置，通过摄像头在短时间内拍摄运动物体如星星的图像，对拍摄的图像进行合成处理，得到运动幅度较小的星轨图像或者星轨视频，通过合成得到的星轨图像或者星轨视频进行计算，可以得到未来的轨迹，进一步将计算得到的轨迹补全到合成的星轨图像或者星轨视频中，得到能够明显体现出星轨的星轨图像或者星轨视频，本发明实施例能够缩短拍摄运动物体的轨迹的拍摄的时间，实现快速拍摄，提高用户体验。The method and device for shooting a trajectory of a moving object provided by the embodiment of the present invention, the image of a moving object such as a star is captured by the camera in a short time, and the captured image is synthesized to obtain a star-track image with a small motion amplitude or The star-track video, calculated by synthesizing the star-track image or the star-track video, can obtain the future trajectory, and further complement the calculated trajectory into the synthesized star-track image or the star-track video, which can clearly reflect the star. The star-track image of the track or the star-track video, the embodiment of the invention can shorten the time of shooting the trajectory of the moving object, realize fast shooting, and improve the user experience.
附图概述BRIEF abstract
图1为本发明实施例运动物体的轨迹的拍摄方法一实施例的流程示意 图；1 is a flow chart showing an embodiment of a method for photographing a trajectory of a moving object according to an embodiment of the present invention; Figure
图2为图1中步骤S102的细化流程示意图；2 is a schematic diagram of a refinement process of step S102 in FIG. 1;
图3为图2中步骤S1021的细化流程示意图；3 is a schematic diagram showing the refinement process of step S1021 in FIG. 2;
图4为本发明实施例运动物体的轨迹的拍摄装置一实施例的功能模块示意图；4 is a schematic diagram of functional modules of an embodiment of an apparatus for photographing a trajectory of a moving object according to an embodiment of the present invention;
图5为图4中补全模块的细化功能模块示意图；5 is a schematic diagram of a refinement function module of the completion module in FIG. 4;
图6为图5中生成单元模块的细化功能模块示意图。FIG. 6 is a schematic diagram of a refinement function module of the generating unit module in FIG. 5.
本发明的较佳实施方式Preferred embodiment of the invention
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
本发明实施例提供一种运动物体的轨迹的拍摄方法，参照图1，在该实施例中，该运动物体的轨迹的拍摄方法包括：An embodiment of the present invention provides a method for photographing a trajectory of a moving object. Referring to FIG. 1, in this embodiment, a method for photographing a trajectory of the moving object includes:
步骤S101，拍摄开始后，运动物体的轨迹的拍摄装置通过摄像头采集运动物体的图像；Step S101, after the start of shooting, the photographing device of the trajectory of the moving object collects an image of the moving object through the camera;
本实施例中，运动物体例如是星星或者月亮等，还可以是其他具有运动规律的且运动较慢的运动物体。本发明实施例中所有运动物体均以星星作为示例。In this embodiment, the moving object is, for example, a star or a moon, and the like, and may be other moving objects having a regular motion and a slow motion. All moving objects in the embodiment of the present invention are exemplified by stars.
在本实施例中，可以为拍摄装置增加一种星轨拍摄模式，用户可以选择星轨拍摄模式或普通拍摄模式进行拍摄，且在拍摄过程中，摄像头不能发生移动，即在同一位置进行拍摄。其中，星轨拍摄模式结合星轨拍摄场景的要求，预先设定了曝光时间、ISO、分辨率、曝光补偿、降噪等参数，还可以根据不同地区上空不同的星空场景预设不同的参数，供用户拍摄时进行选择。In this embodiment, a star track shooting mode can be added to the photographing device, and the user can select the star track shooting mode or the normal shooting mode to perform shooting, and during the shooting process, the camera cannot move, that is, shooting at the same position. Among them, the star track shooting mode combined with the requirements of the star track shooting scene, preset the exposure time, ISO, resolution, exposure compensation, noise reduction and other parameters, and can also preset different parameters according to different starry sky scenes over different regions. For the user to choose when shooting.
当用户选择了星轨拍摄模式，按下拍摄按键或触发虚拟拍摄按键后，拍摄装置的摄像头即开始进行星轨拍摄，利用摄像头每隔预设时间采集一张图像，该预设时间即相当于曝光时间，可选5～10S。可以将采集的图像进行缓存，以便后续步骤中从缓存中读取图像进行合成，也可以直接将采集到的图像发送给后续步骤中进行图像合成。When the user selects the star track shooting mode, press the shooting button or trigger the virtual shooting button, the camera of the camera starts to shoot the star track, and the camera captures an image every preset time, which is equivalent to the preset time. Exposure time, optional 5 ~ 10S. The captured image may be buffered so that the image is read from the cache for synthesis in a subsequent step, or the acquired image may be directly sent to a subsequent step for image synthesis.
其中，在进行星空拍摄时，可以自动将焦点设为无限远。Among them, when shooting in the sky, you can automatically set the focus to infinity.
星轨的拍摄需要长时间进行拍摄才能得到能够明显体现星轨的轨迹图像 或轨迹视频。本实施例中的拍摄装置的摄像头在短时间内拍摄部分图像，如只拍摄一分钟或者三分钟，实现快速拍摄。The shooting of the star track takes a long time to get the trajectory image that can clearly reflect the star track. Or track video. The camera of the photographing apparatus in this embodiment captures a part of the image in a short time, such as only taking one minute or three minutes to realize fast shooting.
步骤S102，运动物体的轨迹的拍摄装置基于所述图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频。Step S102, the photographing device of the trajectory of the moving object performs complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
本实施例中，对拍摄装置的摄像头拍摄部分图像进行合成处理，可以得到弧度较小的星轨图像或者星轨视频。但是，该星轨图像或者星轨视频由于是在短时间内拍摄的，运动幅度较小，因此，人眼无法看到星轨，即星轨的效果无法体现出来。本实施例可以对合成得到的星轨图像或者星轨视频进行分析，在本实施例中，星轨为圆形，因此通过合成得到的星轨图像或者星轨视频的轨迹的计算，可以得到星星未来运动的轨迹。In this embodiment, the image of the camera portion of the camera is synthesized, and a star track image or a star track video with a small curvature can be obtained. However, the star-track image or the star-track video is shot in a short period of time, and the motion is small. Therefore, the human eye cannot see the star track, that is, the effect of the star track cannot be reflected. In this embodiment, the synthesized star track image or the star track video can be analyzed. In this embodiment, the star track is circular, so that the star track image obtained by the synthesis or the track of the star track video can be calculated. The trajectory of future sports.
本实施例根据计算得到的未来运动的轨迹对合成的星轨图像或星轨视频进行进一步的补全处理，可以得到能够明显体现出星轨的星轨图像或者星轨视频。In this embodiment, according to the calculated trajectory of the future motion, the synthesized star-track image or the star-track video is further complemented, and a star-track image or a star-track video capable of clearly reflecting the star-track can be obtained.
另外，本实施例不限定于星轨的拍摄，还可以是其他运动物体的拍摄，如月亮的轨迹拍摄等。In addition, the embodiment is not limited to the shooting of the star track, and may also be the shooting of other moving objects, such as the trajectory shooting of the moon.
与相关技术相比，本实施例通过摄像头在短时间内拍摄运动物体如星星的图像，对拍摄的图像进行合成处理，得到运动幅度较小的星轨图像或者星轨视频，通过合成得到的星轨图像或者星轨视频进行计算，可以得到未来的轨迹，进一步将计算得到的轨迹补全到合成的星轨图像或者星轨视频中，得到能够明显体现出星轨的星轨图像或者星轨视频，本实施例能够缩短拍摄运动物体的轨迹的拍摄的时间，实现快速拍摄，提高用户体验。Compared with the related art, the present embodiment captures an image of a moving object such as a star in a short time by a camera, and synthesizes the captured image to obtain a star-track image or a star-track video with a small motion amplitude, and a star obtained by the synthesis. The track image or the star track video is calculated to obtain the future trajectory, and the calculated trajectory is further complemented into the synthesized star track image or the star track video to obtain a star track image or a star track video capable of clearly reflecting the star track. In this embodiment, the time for photographing the trajectory of the moving object can be shortened, the fast shooting can be realized, and the user experience can be improved.
在一可选的实施例中，如图2所示，在上述图1的实施例的基础上，上述步骤S102包括：In an optional embodiment, as shown in FIG. 2, based on the foregoing embodiment of FIG. 1, the foregoing step S102 includes:
步骤S1021，根据所述采集的运动物体的图像生成所述运动物体的第二轨迹图像或第二轨迹视频；Step S1021: Generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
步骤S1022，根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据；Step S1022: Calculate trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video;
步骤S1023，将所述运动物体未来运动的轨迹数据补充到所述第二轨迹图像或第二轨迹视频中，得到所述第一轨迹图像或第一轨迹视频。 In step S1023, the trajectory data of the future motion of the moving object is added to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
本实施例中，拍摄装置直接接收采集到的图像，或者从缓存中读取图像进行图像合成，并重置缓存，清空其中的数据，为后续数据提供空间。可选地，拍摄装置根据当前的图像与过去的图像的亮度信息进行图像合成，包括：依次将当前图像与上一合成图像进行亮度合成处理：在图像的同一位置，将当前图像较亮的像素替换上一合成的图像中较暗的像素。因摄像头持续采集图像，因此合成图像也是持续的生成。合成图像实则为星轨图像，不同时刻合成图像显示不同时刻的星轨效果。In this embodiment, the photographing device directly receives the collected image, or reads the image from the cache for image synthesis, resets the cache, and empties the data therein to provide space for subsequent data. Optionally, the imaging device performs image synthesis according to the current image and the brightness information of the past image, including: performing brightness synthesis processing on the current image and the previous composite image in sequence: at the same position of the image, the pixel with the current image is brighter Replaces the darker pixels in the last composite image. Since the camera continuously captures images, the composite image is also continuously generated. The composite image is actually a star-track image, and the composite image at different times shows the star-track effect at different times.
本实施例中，以首次拍摄的图像为第一图像，下一次拍摄的图像为第二图像，依次类推。在同一位置，将第一图像与第二图像的像素进行对比，如果第二图像的亮度大于第一图像的亮度，则提取出第二图像的像素来替换掉第一图像对应位置的像素，替换后的第一张图像作为上述的上一合成图像。在拍摄第三图像后，第三图像作为当前图像，在同一位置，将第三图像较亮的位置的像素替换到上一合成图像中，以此类推，以最后得到的一张图像作为本实施例的第二轨迹图像。此种亮点替换的方式，相对于亮点叠加的方式，可以更加清晰的拍摄出星星运动的轨迹，防止星轨旁边的其它亮点过亮而影响星轨效果。而第二轨迹视频则需要将合成图像进行视频编码处理等。In this embodiment, the first captured image is the first image, the next captured image is the second image, and so on. In the same position, comparing the pixels of the first image with the pixels of the second image, if the brightness of the second image is greater than the brightness of the first image, extracting the pixels of the second image to replace the pixels corresponding to the position of the first image, replacing The latter first image is used as the previous composite image described above. After the third image is taken, the third image is used as the current image, and at the same position, the pixel at the position where the third image is brighter is replaced with the previous composite image, and so on, and the last image obtained is used as the present embodiment. The second trajectory image of the example. This way of replacing the bright spots, compared with the way of highlights superposition, can more clearly capture the trajectory of the star movement, preventing other bright spots next to the star track from being too bright and affecting the star track effect. The second trajectory video needs to perform video encoding processing and the like on the composite image.
本实施例中，在第二轨迹图像或第二轨迹视频中，可以获取到运动幅度较小的一段轨迹。该段轨迹为圆弧，拍摄装置通过对该段圆弧进行计算，可以得到该段圆弧所在的圆形，该圆形即为一个完整的星轨。In this embodiment, in the second trajectory image or the second trajectory video, a trajectory with a small motion amplitude can be acquired. The trajectory of the segment is an arc, and the camera calculates the arc of the segment by calculating the arc of the segment, and the circle is a complete star track.
在一可选的实施例中，可以任意取圆弧上的两条不同的弦，两条弦的中垂线的交点为该圆弧所在的圆形的圆心，通过该圆心，可以确定该圆形，即确定星轨。本实施例除去圆弧的圆形的剩余部分，均为星星未来运动的轨迹。本实施例可以按照用户的设置得到第一轨迹图像或第一轨迹视频，即由用户设置第一轨迹图像或第一轨迹视频中的轨迹的长度作为上述轨迹数据，可以是整个圆形，也可以是一段人眼能够明显看出来的圆弧。将轨迹数据补充到第二轨迹图像或第二轨迹视频中，经其他亮度等处理，得到第一轨迹图像或第一轨迹视频。In an optional embodiment, two different chords on the arc can be arbitrarily taken, and the intersection of the perpendicular lines of the two chords is the center of the circle where the arc is located, and the circle can be determined by the center of the circle. Shape, that is, determine the star track. This embodiment removes the remaining portion of the circular arc, which is the trajectory of the future movement of the star. In this embodiment, the first trajectory image or the first trajectory video may be obtained according to the setting of the user, that is, the length of the trajectory in the first trajectory image or the first trajectory video is set by the user as the trajectory data, which may be the entire circle, or may be It is an arc that can be clearly seen by the human eye. The trajectory data is added to the second trajectory image or the second trajectory video, processed by other brightness or the like to obtain a first trajectory image or a first trajectory video.
在一可选的实施例中，如图3所示，在上述图2的实施例的基础上，上述步骤S1021中根据所述图像生成所述运动物体的第二轨迹视频的步骤包 括：In an optional embodiment, as shown in FIG. 3, on the basis of the foregoing embodiment of FIG. 2, the step of generating a second trajectory video of the moving object according to the image in the above step S1021 include:
步骤S10211，依次将当前图像与上一合成图像进行亮度合成处理，得到所有的合成图像；Step S10211, sequentially performing brightness synthesis processing on the current image and the previous composite image to obtain all the composite images;
步骤S10212，对所有的所述合成图像进行视频编码处理；Step S10212, performing video encoding processing on all of the composite images;
步骤S10213，将视频编码处理后的合成图像生成所述第二轨迹视频。Step S10213: Generate the second track video by using the video encoded processed composite image.
本实施例中，依次将当前图像与上一合成图像进行亮度合成处理的过程与上一实施例相同，所不同的是，本实施例需要获取第一图像及其他所有的合成图像，即第一图像及所有的合成图像都作为星轨视频的素材。In this embodiment, the process of performing the brightness synthesis process on the current image and the previous composite image is the same as that in the previous embodiment. The difference is that the first image and all other composite images, that is, the first The image and all composite images are used as the material for the star track video.
可选的，可以连续抓取合成图像或者间隔的抓取合成图像。连续抓取合成图像，是指每合成一张合成图像就抓取一张进行视频编码处理，即，将合成的所有合成图像都作为星轨视频的素材。合成图像和抓取合成图像进行视频编码处理是两个线程同步进行，由于是一边拍摄一边对合成图像进行视频编码处理，因此无需存储合成的合成图像。Optionally, the composite image or the intermittent captured composite image can be continuously captured. Continuously capturing a composite image means that each time a composite image is synthesized, one is captured for video encoding processing, that is, all synthesized images are used as the material of the star track video. The composite image and the captured composite image are subjected to video encoding processing in synchronization with two threads. Since the composite image is subjected to video encoding processing while shooting, it is not necessary to store the synthesized composite image.
间隔抓取是指选择性的抓取部分合成图像作为星轨视频的素材。间隔方式可以是手动间隔模式或者自动间隔模式。其中，手动间隔模式，是指提供操作界面以便用户点击触发抓取图像数据，如点击屏幕，抓取当前合成的合成图像(有预览时，即当前的预览图像)；自动间隔模式，是指按照预设的时间间隔抓取合成图像，即每隔预设时间抓取一张合成图像。Interval grabbing refers to the selective capture of a portion of a composite image as a material for a star-track video. The interval mode can be a manual interval mode or an automatic interval mode. The manual interval mode refers to providing an operation interface for the user to click to trigger the captured image data, such as clicking the screen to capture the currently synthesized composite image (when there is a preview, that is, the current preview image); the automatic interval mode refers to The composite image is captured at a preset time interval, that is, a composite image is captured every preset time.
抓取合成图像的间隔时间可选长于摄像头采集图像的间隔时间(即曝光时间)，避免两次或多次抓取到相同的合成图像，或者减小最终合成的视频文件的大小。例如可以每隔1～2Min抓取一张合成图像，该合成图像即当前的合成图像，当前时刻的星轨图片。然后对抓取到的合成图像进行视频编码处理，将其处理为MPEG-4、H264、H263、VP8等常见视频编码，以备后续生成视频文件，对合成图像进行视频编码处理的方法与相关技术相同，在此不再赘述。The interval for capturing the composite image may be longer than the interval at which the camera captures the image (ie, the exposure time), avoiding capturing the same composite image two or more times, or reducing the size of the final synthesized video file. For example, a composite image can be captured every 1 to 2 Min, which is the current composite image and the current track image. Then, the captured composite image is subjected to video encoding processing, and processed into common video encoding such as MPEG-4, H264, H263, VP8, etc., in preparation for subsequent generation of video files, and method and related technology for video encoding processing of composite images. The same, no longer repeat here.
本发明实施例还提供一种运动物体的轨迹的拍摄装置，如图4所示，运动物体的轨迹的拍摄装置包括：An embodiment of the present invention further provides a photographing device for a trajectory of a moving object. As shown in FIG. 4, the photographing device for the trajectory of the moving object includes:
采集模块101，设置为拍摄开始后，通过摄像头采集运动物体的图像；The collecting module 101 is configured to collect an image of the moving object through the camera after the shooting starts;
本实施例中，运动物体例如是星星或者月亮等，还可以是其他具有运动 规律的且运动较慢的运动物体。本发明实施例中的运动物体均以星星作为示例。In this embodiment, the moving object is, for example, a star or a moon, and the like, and may also have other motions. a moving object that is regular and slow to move. The moving objects in the embodiments of the present invention all take stars as an example.
在本实施例中，可以为拍摄装置增加了一种星轨拍摄模式，用户可以选择星轨拍摄模式或普通拍摄模式进行拍摄，且在拍摄过程中，摄像头不能发生移动，即在同一位置进行拍摄。其中，星轨拍摄模式结合星轨拍摄场景的要求，预先设定了曝光时间、ISO、分辨率、曝光补偿、降噪等参数，还可以根据不同地区上空不同的星空场景预设不同的参数，供用户拍摄时进行选择。In this embodiment, a star track shooting mode can be added to the photographing device, and the user can select the star track shooting mode or the normal shooting mode to shoot, and during the shooting process, the camera cannot move, that is, shooting in the same position. . Among them, the star track shooting mode combined with the requirements of the star track shooting scene, preset the exposure time, ISO, resolution, exposure compensation, noise reduction and other parameters, and can also preset different parameters according to different starry sky scenes over different regions. For the user to choose when shooting.
当用户选择了星轨拍摄模式，按下拍摄按键或触发虚拟拍摄按键后，拍摄装置的摄像头即开始进行星轨拍摄，利用摄像头每隔预设时间采集一张图像，该预设时间即相当于曝光时间，可选5～10S。可以将采集的图像进行缓存，以便后续步骤中从缓存中读取图像进行合成，也可以直接将采集到的图像发送给后续步骤中进行图像合成。When the user selects the star track shooting mode, press the shooting button or trigger the virtual shooting button, the camera of the camera starts to shoot the star track, and the camera captures an image every preset time, which is equivalent to the preset time. Exposure time, optional 5 ~ 10S. The captured image may be buffered so that the image is read from the cache for synthesis in a subsequent step, or the acquired image may be directly sent to a subsequent step for image synthesis.
其中，在进行星空拍摄时，可以自动将焦点设为无限远。Among them, when shooting in the sky, you can automatically set the focus to infinity.
星轨的拍摄需要长时间进行拍摄才能得到能够明显体现星轨的轨迹图像或轨迹视频。本实施例中的拍摄装置的摄像头在短时间内拍摄部分图像，如只拍摄一分钟或者三分钟，实现快速拍摄。The shooting of the star track takes a long time to get a track image or track video that can clearly reflect the star track. The camera of the photographing apparatus in this embodiment captures a part of the image in a short time, such as only taking one minute or three minutes to realize fast shooting.
补全模块102，设置为基于所述图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频。The completion module 102 is configured to perform a complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
本实施例中，对拍摄装置的摄像头拍摄部分图像进行合成处理，可以得到弧度较小的星轨图像或者星轨视频。但是，该星轨图像或者星轨视频由于是在短时间内拍摄的，运动幅度较小，因此，人眼无法看到星轨，即星轨的效果无法体现出来。本实施例可以对合成得到的星轨图像或者星轨视频进行分析，在本实施例中，星轨为圆形，因此通过合成得到的星轨图像或者星轨视频的轨迹的计算，可以得到星星未来运动的轨迹。In this embodiment, the image of the camera portion of the camera is synthesized, and a star track image or a star track video with a small curvature can be obtained. However, the star-track image or the star-track video is shot in a short period of time, and the motion is small. Therefore, the human eye cannot see the star track, that is, the effect of the star track cannot be reflected. In this embodiment, the synthesized star track image or the star track video can be analyzed. In this embodiment, the star track is circular, so that the star track image obtained by the synthesis or the track of the star track video can be calculated. The trajectory of future sports.
本实施例根据计算得到的未来运动的轨迹对合成的星轨图像或星轨视频进行进一步的补全处理，可以得到能够明显体现出星轨的星轨图像或者星轨视频。In this embodiment, according to the calculated trajectory of the future motion, the synthesized star-track image or the star-track video is further complemented, and a star-track image or a star-track video capable of clearly reflecting the star-track can be obtained.
另外，本实施例不限定于星轨的拍摄，还可以是其他运动物体的拍摄，如月亮的轨迹拍摄等。 In addition, the embodiment is not limited to the shooting of the star track, and may also be the shooting of other moving objects, such as the trajectory shooting of the moon.
在一可选的实施例中，如图5所示，在上述图4的实施例的基础上，补全模块102包括：In an optional embodiment, as shown in FIG. 5, on the basis of the above embodiment of FIG. 4, the completion module 102 includes:
生成单元1021，设置为根据所述采集的运动物体的图像生成所述运动物体的第二轨迹图像或第二轨迹视频；The generating unit 1021 is configured to generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
计算单元1022，设置为根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据；The calculating unit 1022 is configured to calculate trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video;
补充单元1023，设置为将所述运动物体未来运动的轨迹数据补充到所述第二轨迹图像或第二轨迹视频中，得到所述第一轨迹图像或第一轨迹视频。The supplementing unit 1023 is configured to add the trajectory data of the future motion of the moving object to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
本实施例中，拍摄装置直接接收采集到的图像，或者从缓存中读取图像进行图像合成，并重置缓存，清空其中的数据，为后续数据提供空间。可选地，拍摄装置根据当前的图像与过去的图像的亮度信息进行图像合成，包括：依次将当前图像与上一合成图像进行亮度合成处理：在图像的同一位置，将当前图像较亮的像素替换上一合成的图像中较暗的像素。因摄像头持续采集图像，因此合成图像也是持续的生成。合成图像实则为星轨图像，不同时刻合成图像显示不同时刻的星轨效果。In this embodiment, the photographing device directly receives the collected image, or reads the image from the cache for image synthesis, resets the cache, and empties the data therein to provide space for subsequent data. Optionally, the imaging device performs image synthesis according to the current image and the brightness information of the past image, including: performing brightness synthesis processing on the current image and the previous composite image in sequence: at the same position of the image, the pixel with the current image is brighter Replaces the darker pixels in the last composite image. Since the camera continuously captures images, the composite image is also continuously generated. The composite image is actually a star-track image, and the composite image at different times shows the star-track effect at different times.
本实施例中，以首次拍摄的图像为第一图像，下一次拍摄的图像为第二图像，依次类推。在同一位置，将第一图像与第二图像的像素进行对比，如果第二图像的亮度大于第一图像的亮度，则提取出第二图像的像素来替换掉第一图像对应位置的像素，替换后的第一张图像作为上述的上一合成图像。在拍摄第三图像后，第三图像作为当前图像，在同一位置，将第三图像较亮的位置的像素替换到上一合成图像中，以此类推，以最后得到的一张图像作为本实施例的第二轨迹图像。此种亮点替换的方式，相对于亮点叠加的方式，可以更加清晰的拍摄出星星运动的轨迹，防止星轨旁边的其它亮点过亮而影响星轨效果。而第二轨迹视频则需要将合成图像进行视频编码处理等。In this embodiment, the first captured image is the first image, the next captured image is the second image, and so on. In the same position, comparing the pixels of the first image with the pixels of the second image, if the brightness of the second image is greater than the brightness of the first image, extracting the pixels of the second image to replace the pixels corresponding to the position of the first image, replacing The latter first image is used as the previous composite image described above. After the third image is taken, the third image is used as the current image, and at the same position, the pixel at the position where the third image is brighter is replaced with the previous composite image, and so on, and the last image obtained is used as the present embodiment. The second trajectory image of the example. This way of replacing the bright spots, compared with the way of highlights superposition, can more clearly capture the trajectory of the star movement, preventing other bright spots next to the star track from being too bright and affecting the star track effect. The second trajectory video needs to perform video encoding processing and the like on the composite image.
本实施例中，在第二轨迹图像或第二轨迹视频中，可以获取到运动幅度较小的一段轨迹。该段轨迹为圆弧，拍摄装置通过对该段圆弧进行计算，可以得到该段圆弧所在的圆形，该圆形即为一个完整的星轨。In this embodiment, in the second trajectory image or the second trajectory video, a trajectory with a small motion amplitude can be acquired. The trajectory of the segment is an arc, and the camera calculates the arc of the segment by calculating the arc of the segment, and the circle is a complete star track.
在一可选的实施例中，可以任意取圆弧上的两条不同的弦，两条弦的中垂线的交点为该圆弧所在的圆形的圆心，通过该圆心，可以确定该圆形，即确定星轨。本实施例除去圆弧的圆形的剩余部分，均为星星未来运动的轨迹。 本实施例可以按照用户的设置得到第一轨迹图像或第一轨迹视频，即由用户设置第一轨迹图像或第一轨迹视频中的轨迹的长度作为上述轨迹数据，可以是整个圆形，也可以是一段人眼能够明显看出来的圆弧。将轨迹数据补充到第二轨迹图像或第二轨迹视频中，经其他亮度等处理，得到第一轨迹图像或第一轨迹视频。In an optional embodiment, two different chords on the arc can be arbitrarily taken, and the intersection of the perpendicular lines of the two chords is the center of the circle where the arc is located, and the circle can be determined by the center of the circle. Shape, that is, determine the star track. This embodiment removes the remaining portion of the circular arc, which is the trajectory of the future movement of the star. In this embodiment, the first trajectory image or the first trajectory video may be obtained according to the setting of the user, that is, the length of the trajectory in the first trajectory image or the first trajectory video is set by the user as the trajectory data, which may be the entire circle, or may be It is an arc that can be clearly seen by the human eye. The trajectory data is added to the second trajectory image or the second trajectory video, processed by other brightness or the like to obtain a first trajectory image or a first trajectory video.
在一可选的实施例中，如图6所示，在上述图5的实施例的基础上，当生成所述运动物体的第二轨迹视频时，所述生成单元1021包括：In an optional embodiment, as shown in FIG. 6, on the basis of the foregoing embodiment of FIG. 5, when generating the second trajectory video of the moving object, the generating unit 1021 includes:
合成子单元10211，设置为依次将当前图像与上一合成图像进行亮度合成处理，得到所有的合成图像；The synthesizing subunit 10211 is configured to sequentially perform a luminance synthesizing process on the current image and the previous composite image to obtain all the synthesized images;
编码子单元10212，设置为对所有的所述合成图像进行视频编码处理；The encoding subunit 10212 is configured to perform video encoding processing on all of the composite images;
生成子单元10213，设置为将视频编码处理后的合成图像生成所述第二轨迹视频。The generating subunit 10213 is configured to generate the second trajectory video from the video encoded processed composite image.
本实施例中，依次将当前图像与上一合成图像进行亮度合成处理的过程与上一实施例相同，所不同的是，本实施例需要获取第一图像及其他所有的合成图像，即第一图像及所有的合成图像都作为星轨视频的素材。In this embodiment, the process of performing the brightness synthesis process on the current image and the previous composite image is the same as that in the previous embodiment. The difference is that the first image and all other composite images, that is, the first The image and all composite images are used as the material for the star track video.
可选的，可以连续抓取合成图像或者间隔的抓取合成图像。连续抓取合成图像，是指每合成一张合成图像就抓取一张进行视频编码处理，即，将合成的所有合成图像都作为星轨视频的素材。合成图像和抓取合成图像进行视频编码处理是两个线程同步进行，由于是一边拍摄一边对合成图像进行视频编码处理，因此无需存储合成的合成图像。Optionally, the composite image or the intermittent captured composite image can be continuously captured. Continuously capturing a composite image means that each time a composite image is synthesized, one is captured for video encoding processing, that is, all synthesized images are used as the material of the star track video. The composite image and the captured composite image are subjected to video encoding processing in synchronization with two threads. Since the composite image is subjected to video encoding processing while shooting, it is not necessary to store the synthesized composite image.
间隔抓取是指选择性的抓取部分合成图像作为星轨视频的素材。间隔方式可以是手动间隔模式或者自动间隔模式。其中，手动间隔模式，是指提供操作界面以便用户点击触发抓取图像数据，如点击屏幕，抓取当前合成的合成图像(有预览时，即当前的预览图像)；自动间隔模式，是指按照预设的时间间隔抓取合成图像，即每隔预设时间抓取一张合成图像。Interval grabbing refers to the selective capture of a portion of a composite image as a material for a star-track video. The interval mode can be a manual interval mode or an automatic interval mode. The manual interval mode refers to providing an operation interface for the user to click to trigger the captured image data, such as clicking the screen to capture the currently synthesized composite image (when there is a preview, that is, the current preview image); the automatic interval mode refers to The composite image is captured at a preset time interval, that is, a composite image is captured every preset time.
抓取合成图像的间隔时间可选长于摄像头采集图像的间隔时间(即曝光时间)，避免两次或多次抓取到相同的合成图像，或者减小最终合成的视频文件的大小。例如可以每隔1～2Min抓取一张合成图像，该合成图像即当前的合成图像，当前时刻的星轨图片。然后对抓取到的合成图像进行视频编码处 理，将其处理为MPEG-4、H264、H263、VP8等常见视频编码，以备后续生成视频文件，对合成图像进行视频编码处理的方法与相关技术相同，在此不再赘述。The interval for capturing the composite image may be longer than the interval at which the camera captures the image (ie, the exposure time), avoiding capturing the same composite image two or more times, or reducing the size of the final synthesized video file. For example, a composite image can be captured every 1 to 2 Min, which is the current composite image and the current track image. Then video encoding the captured composite image For the reason, the method is the same as the related art, and the method for the video encoding processing of the composite image is the same as that of the related art, and is not described here.
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。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.
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
工业实用性Industrial applicability
上述技术方案能够缩短拍摄运动物体的轨迹的拍摄的时间，实现快速拍摄，提高用户体验。 The above technical solution can shorten the time of shooting the trajectory of the moving object, realize fast shooting, and improve the user experience.

Claims (13)

  1. 一种运动物体的轨迹的拍摄方法，所述运动物体的轨迹的拍摄方法包括以下步骤：A method for photographing a trajectory of a moving object, the method for photographing the trajectory of the moving object includes the following steps:
    拍摄开始后，通过摄像头采集运动物体的图像；After the shooting starts, the image of the moving object is collected by the camera;
    基于所述图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频。Completing the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
  2. 如权利要求1所述的运动物体的轨迹的拍摄方法，其中，所述基于图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频的步骤包括：The method for photographing a trajectory of a moving object according to claim 1, wherein the image is subjected to complementation processing on a motion trajectory of the moving object based on an image to obtain a first trajectory image of the moving object or a first trajectory video The steps include:
    根据所述采集的运动物体的图像生成所述运动物体的第二轨迹图像或第二轨迹视频；Generating a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
    根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据；Calculating trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video;
    将所述运动物体未来运动的轨迹数据补充到所述第二轨迹图像或第二轨迹视频中，得到所述第一轨迹图像或第一轨迹视频。The trajectory data of the future motion of the moving object is added to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
  3. 如权利要求2所述的运动物体的轨迹的拍摄方法，其中，所述根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据的步骤包括：The method of photographing a trajectory of a moving object according to claim 2, wherein the step of calculating trajectory data of the future motion of the moving object according to the second trajectory image or the second trajectory video comprises:
    获取所述第二轨迹图像或第二轨迹视频中的圆弧形的轨迹，根据所述圆弧形的轨迹计算得到圆形的轨迹；Obtaining a circular arc-shaped trajectory in the second trajectory image or the second trajectory video, and calculating a circular trajectory according to the circular arc trajectory;
    基于所述圆形的轨迹获取未来运动的星轨数据。The star track data of the future motion is acquired based on the circular trajectory.
  4. 如权利要求2所述的运动物体的轨迹的拍摄方法，其中，所述根据所述图像生成所述运动物体的第二轨迹图像的步骤包括：The method of photographing a trajectory of a moving object according to claim 2, wherein the step of generating a second trajectory image of the moving object according to the image comprises:
    依次将当前图像与上一合成图像进行亮度合成处理，以最后合成得到的一张图像作为所述第二轨迹图像。The current image and the previous composite image are sequentially subjected to luminance synthesis processing, and the last synthesized image is used as the second trajectory image.
  5. 如权利要求2所述的运动物体的轨迹的拍摄方法，其中，所述根据所 述图像生成所述运动物体的第二轨迹视频的步骤包括：A method of photographing a trajectory of a moving object according to claim 2, wherein said basis The step of generating an image of the second trajectory of the moving object by the image includes:
    依次将当前图像与上一合成图像进行亮度合成处理，得到所有的合成图像；Performing brightness synthesis processing on the current image and the previous composite image in turn to obtain all the composite images;
    对所有的所述合成图像进行视频编码处理；Performing a video encoding process on all of the composite images;
    将视频编码处理后的合成图像生成所述第二轨迹视频。The second trajectory video is generated by the video encoded processed composite image.
  6. 如权利要求1至5任一项所述的运动物体的轨迹的拍摄方法，其中，所述运动物体的轨迹为星轨。The method of photographing a trajectory of a moving object according to any one of claims 1 to 5, wherein the trajectory of the moving object is a star track.
  7. 一种运动物体的轨迹的拍摄装置，所述运动物体的轨迹的拍摄装置包括：A photographing device for a trajectory of a moving object, the photographing device of the trajectory of the moving object includes:
    采集模块，设置为拍摄开始后，通过摄像头采集运动物体的图像；The acquisition module is configured to collect an image of the moving object through the camera after the shooting starts;
    补全模块，设置为基于所述图像对所述运动物体的运动轨迹进行补全处理，得到所述运动物体的第一轨迹图像或第一轨迹视频。The completion module is configured to perform a complement processing on the motion trajectory of the moving object based on the image to obtain a first trajectory image or a first trajectory video of the moving object.
  8. 如权利要求7所述的运动物体的轨迹的拍摄装置，其中，所述补全模块包括：The apparatus for photographing a trajectory of a moving object according to claim 7, wherein the completion module comprises:
    生成单元，设置为根据所述采集的运动物体的图像生成所述运动物体的第二轨迹图像或第二轨迹视频；a generating unit, configured to generate a second trajectory image or a second trajectory video of the moving object according to the acquired image of the moving object;
    计算单元，设置为根据所述第二轨迹图像或第二轨迹视频计算得到所述运动物体未来运动的轨迹数据；a calculating unit, configured to calculate trajectory data of a future motion of the moving object according to the second trajectory image or the second trajectory video;
    补充单元，设置为将所述运动物体未来运动的轨迹数据补充到所述第二轨迹图像或第二轨迹视频中，得到所述第一轨迹图像或第一轨迹视频。And a supplementing unit configured to add the trajectory data of the future motion of the moving object to the second trajectory image or the second trajectory video to obtain the first trajectory image or the first trajectory video.
  9. 如权利要求8所述的运动物体的轨迹的拍摄装置，其中，所述计算单元包括：A photographing apparatus for a trajectory of a moving object according to claim 8, wherein said calculating unit comprises:
    计算子单元，设置为获取所述第二轨迹图像或第二轨迹视频中的圆弧形的轨迹，根据所述圆弧形的轨迹计算得到圆形的轨迹；a calculation subunit, configured to acquire a circular arc-shaped trajectory in the second trajectory image or the second trajectory video, and calculate a circular trajectory according to the circular arc trajectory;
    获取子单元，设置为基于所述圆形的轨迹获取未来运动的星轨数据。 Obtaining a subunit, configured to acquire star track data of future motion based on the circular trajectory.
  10. 如权利要求8所述的运动物体的轨迹的拍摄装置，其中，A photographing apparatus for a trajectory of a moving object according to claim 8, wherein
    所述生成单元是设置为通过如下方式实现根据所述图像生成所述运动物体的第二轨迹图像：The generating unit is configured to generate a second trajectory image of the moving object according to the image by:
    依次将当前图像与上一合成图像进行亮度合成处理，以最后合成得到的一张图像作为所述第二轨迹图像。The current image and the previous composite image are sequentially subjected to luminance synthesis processing, and the last synthesized image is used as the second trajectory image.
  11. 如权利要求8所述的运动物体的轨迹的拍摄装置，其中，A photographing apparatus for a trajectory of a moving object according to claim 8, wherein
    所述生成单元包括：The generating unit includes:
    合成子单元，设置为依次将当前图像与上一合成图像进行亮度合成处理，得到所有的合成图像；a synthesis subunit, configured to sequentially perform brightness synthesis processing on the current image and the previous composite image to obtain all the composite images;
    编码子单元，设置为对所有的所述合成图像进行视频编码处理；a coding subunit, configured to perform video coding processing on all of the composite images;
    生成子单元，设置为将视频编码处理后的合成图像生成所述第二轨迹视频。Generating a subunit, configured to generate the second trajectory video from the video encoded processed composite image.
  12. 如权利要求7至11任一项所述的运动物体的轨迹的拍摄装置，其中，所述运动物体的轨迹为星轨。A photographing apparatus for a trajectory of a moving object according to any one of claims 7 to 11, wherein the trajectory of the moving object is a star track.
  13. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1～6中任一项所述的方法。 A computer storage medium having stored therein computer executable instructions for performing the method of any one of claims 1 to 6.
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