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Video cropping device based on frame coordinate, method and mobile terminal

A cropping device and video technology, applied in the field of communication, can solve the problems of affecting the shooting content and high sharing costs

Active Publication Date: 2016-01-20
NUBIA TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of mobile phone shooting capabilities, video shooting has become very popular. Video shooting and sharing are also called a part of life entertainment. The original shooting video is too large, and the upload and sharing costs are high under 3G and other networks. Users generally use cropping Video size to reduce the video size, but this will have an impact on the shooting content

Method used

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  • Video cropping device based on frame coordinate, method and mobile terminal
  • Video cropping device based on frame coordinate, method and mobile terminal
  • Video cropping device based on frame coordinate, method and mobile terminal

Examples

Experimental program
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Embodiment 1

[0087] image 3 It is an exemplary structural block diagram of a video cropping device based on frame coordinates in this embodiment, combined below image 3 To describe a video clipping device based on frame coordinates in this embodiment, such as image 3 Shown, a kind of video cropping device based on frame coordinates, comprises:

[0088] The coordinate information reading module 10 is used to read the coordinate information of the shooting subject in each frame of the video;

[0089] A cropping area selection module 20, configured to select a cropping area, and automatically obtain the ratio of the shooting subject in the cropping area according to the coordinate information;

[0090] The cropping module 30 is configured to determine a final cropping area according to the ratio, and crop the video according to the final cropping area.

[0091] In this embodiment, the video is taken by a mobile phone or a video camera. During the shooting process, the area where the sub...

Embodiment 2

[0098] Such as Figure 7 Shown, a kind of video clipping device based on frame coordinates also includes:

[0099] The display module 40 is configured to display the proportion of the shooting subject in the cropping area on the video cropping interface in the form of a percentage.

Embodiment 3

[0101] Such as Figure 8 As shown, in this embodiment, the clipping module 30 includes:

[0102] A final cropping area confirmation unit 31, configured to determine the final cropping area according to the ratio between the size of the percentage and the size of the clipping area;

[0103] The compression and cropping unit 32 is configured to crop the video through a compression and cropping algorithm.

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PUM

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Abstract

The present invention discloses a video cropping device based on a frame coordinate, a method and a mobile terminal, belonging to the technical field of communication. The device comprises a coordinate information reading module for reading the coordinate information of a shot body in each frame of a video, a cropping area selection module for selecting a cropping area and automatically obtains the proportion of the shot body in a cropping area according to the coordinate information, and a cropping module for determining a final cropping area according to the proportion and cropping the video according to the final cropping area. According to the video cropping device, the method and the mobile terminal, the proportion of the shot body in the cropping area is automatically calculated in cropping the video, according to the size of the cropping area, the smallest influence on video content after cropping the video is ensured to the maximum, and the video quality decrease caused by shot body information loss in the cropping process is avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a frame coordinate-based video cropping device, method and mobile terminal. Background technique [0002] With the improvement of mobile phone shooting capabilities, video shooting has become very popular. Video shooting and sharing are also called a part of life entertainment. The original shooting video is too large, and the upload and sharing costs are high under 3G and other networks. Users generally use cropping Video size to reduce the video size, but this will have an impact on the shooting content. Contents of the invention [0003] The main purpose of the present invention is to propose a video clipping device, method and mobile terminal based on frame coordinates, automatically calculate the ratio of the shooting subject in the clipping area when clipping the video, and select the clipping area according to the ratio The size of the video is maximized ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/44
CPCH04N21/44
Inventor 吴亮园
Owner NUBIA TECHNOLOGY CO LTD
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