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Video retargeting system for maintaining visual saliency

A redirection and remarkable technology, applied in the field of image and video processing systems, can solve problems such as large deformation of objects, achieve the effect of reducing deformation, reducing calculation cost, and reducing calculation complexity

Active Publication Date: 2013-07-31
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the main problem of the video redirection method based on seam carving is that the object in the redirected video will have a large deformation because the removed seam can be of any shape

Method used

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  • Video retargeting system for maintaining visual saliency
  • Video retargeting system for maintaining visual saliency
  • Video retargeting system for maintaining visual saliency

Examples

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Embodiment

[0024] Such as figure 1 As shown, this embodiment includes: a salient image calculation module, a candidate seam extraction module, a curve deformation module, a salient curve detection module, a hierarchical shape matching module and an optimal seam calculation module. Among them: the salient image calculation module is connected to the input video to calculate the salient image of each frame, the candidate gap extraction module is connected to the salient image calculation module to extract the minimum energy path, the salient curve detection module is connected to the input video to calculate the salient curve of each frame, and the curve deformation module It is connected with the salient curve detection module and the candidate gap extraction module to calculate the deformation caused by the removal of each candidate gap to the curve, and the hierarchical shape matching module is connected with the curve deformation module and the salient curve detection module to calculat...

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Abstract

The invention provides a video retargeting system for maintaining visual saliency. The system comprises a salient image calculating module, a candidate seam extraction module, a curve deformation module, a salient curve detection module, a graded shape matching module and an optimum seam calculating module, wherein the salient curve detection module comprises a curve endpoint detection module and a curve tracking module; and the graded shape matching module comprises a shape tree construction module and a deformation cost calculating module. The video retargeting system greatly reduces curve deformation and distortion which are easily caused by a conventional video retargeting method, reserves visual saliency information in a video on the basis, maintains the time continuity, is lower in algorithm complexity, and has good subjective feeling and objective quality assessment.

Description

technical field [0001] The invention relates to a system in the field of image and video processing, in particular to a video redirection system based on salient curve detection and layered curve matching. Background technique [0002] In recent years, with the development and progress of terminal display devices such as mobile phones, tablet computers, and notebook computers, video retargeting technology has attracted increasing attention and attention from the academic community. Video retargeting technology refers to a technology that adjusts video from its original resolution to any resolution to fit display devices of different sizes. Different from traditional stretching, cropping, filling and other methods, video retargeting technology retains the most visually significant information to a great extent during the process of adjusting the resolution, so it has an excellent look and feel. In recent years, many studies at home and abroad have shown that video redirectio...

Claims

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Application Information

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IPC IPC(8): G06T7/00
Inventor 熊红凯王博韬
Owner SHANGHAI JIAO TONG UNIV
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