Video flow based people face expression fantasy method

A technology of facial expressions and video streams, applied in image data processing, instruments, calculations, etc., can solve problems that are difficult to meet practical applications and a large number of human interactions, and achieve high reliability and strong expressive effects
CN1920880AInactive Publication Date: 2007-02-28ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2007-02-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to face pathetic image technique of video flow, which is based on several pathetic sequences of one input neutral face pathetic image, wherein said algorism comprises: (1) selecting face interested sub area from the input face image by hand; (2) calculating out the k neighbors and relative m-dimension character coordinates in the sample space; (3) using said coordinates and character to represent training radial basic function; (4) using the coordinate of input image as the input of radial basic function to obtain relative character representation, to compose the dynamic sequence of face interested sub region frame by frame; (5) planting composed dynamic sequence into input neutral face pathetic image to obtain the last pathetic effect. The invention can generate several dynamic pathetic sequences quickly based on one image, with wide applications.
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Description

technical field

[0001] The invention relates to a method for imagining human facial expressions based on video streams in the field of digital image processing. Background technique

[0002] Facial expression fantasy technology belongs to a kind of expression synthesis technology. The current expression synthesis methods are mainly divided into three categories: analogy-based expression synthesis, redirection-based expression synthesis and learning-based expression synthesis. The representative of the expression synthesis method based on analogy is the "shape-driven facial expression synthesis system" developed by Qingshan Zhang et al. 2003 Conference Proceedings" (Eurographics / SIGGRAPH Symposium on Computer Animation, San Diego, CA (2003) 177-186), the system generates realistic images by comparing the shape features of face images and mixing appropriate image sub-regions. Human face expression. The work of Zicheng Liu et al. can be regarded as an analogy-based expression...

Claims

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