Video size switching system and video size switching method facing display terminal

A display terminal and conversion system technology, applied in the multimedia field, can solve problems such as information loss, increase the audience's visual experience, and affect the viewing experience of human eyes, so as to improve the effect and satisfy the visual experience

Inactive Publication Date: 2012-07-04
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with this is that some important information may be lost, affecting the viewing experience of the human eye
Therefore, if the visual perception window cuts part of the original video information, but as long as it can fully display the most concerned area of ​​the human eye in the video image within the limite

Method used

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  • Video size switching system and video size switching method facing display terminal
  • Video size switching system and video size switching method facing display terminal
  • Video size switching system and video size switching method facing display terminal

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] First, a video size conversion system for display terminals will be described.

[0029] figure 1 It is a block diagram of the display terminal-oriented video size conversion system of the present invention. Such as figure 1 As shown, the conversion system includes: a cropping window size calculation module 101 , a cropping window position determination module 102 and a target video conversion module 103 .

[0030] The clipping window size calculation module 101 is used to determine the clipping window size;

[0031] The cropping window size calculation module 101 determines that the cropping window size is to determine the length and width of a rectangle for clipping the source video. According to the user's perceptual preference for the size of the object in the target video, the scale factor r is given interactively, and ...

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Abstract

The invention provides a video size switching system and a video size switching method facing a display terminal. The method includes the steps: firstly, computing the size of interested windows according to interactive choices of users and by designing perception window models; then detecting long shots, fusing various factors of human eyes to view videos into each frame of image in each long shot by adopting a knowledge-based fuzzy reasoning decision-making system, automatically identifying interested areas and cutting the interested areas to serve as display content of the display terminal; and finally, performing time-domain smoothing for central points of all the interested areas identified in the long shots, so that consistency and continuity of time domains of the interested areas are guaranteed. Additionally, the video size switching system facing the display terminal is based on the method. From the perspective of video source format switching technology, the method with the technical scheme can be self-adaptive to switch a common video format into a target video format which can be played by a small-sized terminal.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a display terminal-oriented video size adaptive conversion system and method. Background technique [0002] With the development and maturity of the third-generation mobile wireless communication protocol, the bandwidth of the wireless communication network is increasing day by day, which can meet the bandwidth requirements of users' multimedia services. Therefore more and more users of mobile terminals (such as: handheld portable devices such as mobile phones, PDAs, Pocket PCs) like to watch various videos by mobile phones. This increasingly mature communication technology is more convenient for users to enjoy multimedia services anytime and anywhere, enriching people's entertainment life, and also reflects the characteristics of increasingly diversified multimedia services. People are no longer tied to home TVs or public theaters to enjoy the entertainment brought by vario...

Claims

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Application Information

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IPC IPC(8): G06F3/14G06T7/00
Inventor 高丽王东辉洪缨刘明刚侯朝焕
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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