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Video recording method and device

A video recording and video frame technology, applied in the video field, can solve the problems that cannot satisfy the clear analysis of fast motion scenes

Active Publication Date: 2015-05-27
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a video recording method to solve the problem that for scenes with relatively fast movements, it is necessary to play the operation of the scene at a slow speed to analyze the scene. The existing video recording methods cannot meet the requirements for fast action scenes. Ask questions for clear analysis

Method used

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  • Video recording method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 The implementation flow of a video recording method provided by the first embodiment of the present invention is shown, and the details are as follows:

[0025] In step S101, a video recording instruction is received, and the video recording instruction includes a frame playback speed.

[0026] Specifically, the video recording instruction may be a video recording instruction input by the user. For example, the user turns on the camera, enters the video shooting interface, and starts recording the instruction after receiving the screen playback speed information input by the user.

[0027] The video recording instruction can also be for the system to detect the motion speed of the image in the screen, and automatically adjust the screen playback speed, such as reducing the screen playback speed when the main object in the image moves faster.

[0028] The receiving of the above two video recording instructions will be specifically introduced in the following em...

Embodiment 2

[0044] figure 2 The implementation flow of a video recording method provided by the second embodiment of the present invention is shown, and the details are as follows:

[0045] In step S201 , a sliding instruction of dragging the slider in the sliding bar area by the user is received, and the position of the slider after the sliding instruction moves the slider is acquired.

[0046] Specifically, such as image 3 As shown, the slider is divided into two intervals, and 1 is used as the division point of the two intervals. When the slider is at 1, it means that the playback speed of the picture is the normal playback speed, that is, the speed of the recorded video playback content is the same as the speed of the real on-site event.

[0047] When the slider slides to the left, the position of the slider is between 0 and 1, and the playback speed of the video will slow down. You can set the slider in this range to analyze the objects with faster changes, and, when the object ...

Embodiment 3

[0057] Figure 4 The implementation flow of a video recording method provided by the third embodiment of the present invention is shown, and the details are as follows:

[0058] In step S401, the motion speed of the main object in the video frame is detected.

[0059] Specifically, the main object in the video picture can be specified by the user, or can be calculated according to a predetermined analysis algorithm, for example, by calculating the object located in the middle of the picture as the main object, or calculating the object with a closer distance as the main object wait.

[0060] The moving speed of the main object can be calculated by using a comparison algorithm of pixels in the video picture, that is, how much the position of the pixel changes within a unit time to calculate the moving speed of the main object.

[0061] In step S402 , according to the detected movement speed of the main object, the playback speed of the picture is correspondingly set.

[0062...

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Abstract

The invention provides a video recording method and device. The method comprises steps as follows: a video recording instruction is received and comprises an image playing speed; a video frame image acquisition speed corresponding to the image playing speed is searched; video images are acquired according to the searched video frame image acquisition speed, and the acquired video frame images are saved in a video data file. With the adoption of the video recording method and device, acquisition can be performed on different scenes at different video frame acquisition speeds, and the requirement for slow-motion analysis of quick-motion scenes can be met during playing.

Description

technical field [0001] The invention belongs to the field of video, and in particular relates to a video recording method and device. Background technique [0002] With the rise of smart mobile terminals, on the basis of traditional communication functions, smart phones provide more and more functions, such as accessing data online, taking photos or videos, playing videos or music, etc., bringing great benefits to people's lives. Great convenience. [0003] After shooting a video with a mobile phone, by playing the recorded video, you can view the picture and sound of the recording site, which can restore the scene of the recorded video very well, and can well meet people's requirements for recording historical scenes. However, for some special scenes, such as some fast-moving scenes such as basketball games and football games, it is necessary to play the operation of the scene at a slow speed to analyze the scene, such as analyzing whether it is a foul operation, etc. The ...

Claims

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Application Information

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IPC IPC(8): H04N5/76H04N21/472H04N21/431
Inventor 刘博何新兰
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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