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Video shooting method and device, and computer readable storage medium

A technology for video shooting and equipment, applied in the field of video shooting methods, equipment and computer-readable storage media, can solve the problems of long shooting waiting time, image processing resources, large consumption of image processing resources, long shooting waiting time, etc. The effect of shooting efficiency, enhancing user experience, and reducing shooting waiting time

Active Publication Date: 2020-09-11
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And if you want to get a video that also contains motion special effects, you need to take a lot of these composite photos continuously, and then recombine each composite photo into a video. It is foreseeable that this two-step composite shooting scheme will consume a lot of time The shooting waiting time and image processing resources, at the same time, this kind of video shooting scheme must use a tripod for auxiliary shooting to achieve a certain shooting effect
Therefore, the motion special effect video shooting scheme in the prior art has technical defects such as long waiting time for shooting, high consumption of image processing resources, and high shooting condition constraints.

Method used

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  • Video shooting method and device, and computer readable storage medium
  • Video shooting method and device, and computer readable storage medium
  • Video shooting method and device, and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] image 3 It is a flow chart of the first embodiment of the video shooting method of the present invention. A video recording method, the method comprising:

[0081] S1. Obtain an image frame, and perform image registration on the current image frame and the previous image frame to obtain a transformation matrix;

[0082] S2. Calculate the exponential average of the current image according to the current image frame and the transformation matrix, and determine the motion area of ​​the current image frame relative to the previous image frame according to the exponential average;

[0083] S3. Overlay the motion region on the superimposed image corresponding to the exponential average;

[0084] S4. Draw and display the overlaid superimposed image in real time.

[0085] In this embodiment, firstly, the image frame is obtained, and image registration is performed on the current image frame and the previous image frame to obtain the transformation matrix; then, the exponent...

Embodiment 2

[0093] Figure 4 It is a flow chart of the second embodiment of the video shooting method of the present invention. Based on the above embodiment, the acquisition of image frames, and image registration of the current image frame and the previous image frame to obtain a transformation matrix include:

[0094] S11. Create a registration thread and a multi-frame synthesis thread respectively at the start moment of the video shooting;

[0095] S12. In the registration thread, acquire a first frame of image, and use an identity matrix as a transformation matrix corresponding to the first frame of image;

[0096] S13. During the process of sequentially acquiring the image frames, image registration is performed on the current image frame and the previous image frame to obtain a transformation matrix corresponding to the current image frame;

[0097] S14. Save the transformation matrix acquired in real time in the transformation matrix shared buffer queue.

[0098] In this embodim...

Embodiment 3

[0104] Figure 5 It is a flow chart of the third embodiment of the video shooting method of the present invention. Based on the above embodiment, the exponential average of the current image is calculated according to the current image frame and the transformation matrix, and the current image frame is determined according to the exponential average Regions of motion relative to the previous image frame, including:

[0105] S21. In the multi-frame synthesis thread, take the first frame image itself as an exponential average corresponding to the first frame image;

[0106] S22. During the process of sequentially acquiring the image frames, transform the exponential average of the previous image frame according to the change matrix corresponding to the current image frame to obtain the exponential average of the current image frame;

[0107] S23. Determine a motion area of ​​the current image frame relative to the previous image frame according to the exponential average of the...

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Abstract

The invention discloses a video shooting method and device and a computer readable storage medium, and the method comprises the steps: obtaining an image frame, carrying out the image registration ofa current image frame and a former image frame, and obtaining a transformation matrix; then, calculating the exponential average of the current image according to the current image frame and the transformation matrix, and determining the motion area of the current image frame relative to the previous image frame according to the exponential average; then, covering the superimposed image corresponding to the index average with the motion area; and finally, drawing and displaying the overlaid image after coverage in real time. According to the invention, a humanized video shooting scheme is realized, so that the shooting waiting time and the image processing resource consumption are reduced, the high operation difficulty and shooting condition constraints are avoided, the shooting efficiencyis improved, and the user experience is enhanced when a video with a special motion effect is shot.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a video shooting method, device and computer-readable storage medium. Background technique [0002] In the prior art, with the rapid development of smart terminal equipment and its special effects shooting solutions, many "multi-frame special effects" photo or video shooting solutions related to sports shooting subjects have appeared on the market. In this type of shooting scheme, multiple frames of images are taken continuously, and these multiple images are synthesized into a photo through some algorithms, so as to present special effects such as optical flow of moving objects and smear on the synthesized photo , and the final result is a still image with motion effects. And if you want to get a video that also contains motion special effects, you need to take a lot of these composite photos continuously, and then recombine each composite photo into a video. It is f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/262
CPCH04N5/2621H04N23/64H04N23/80
Inventor 里强陈国庭
Owner NUBIA TECHNOLOGY CO LTD
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