Title :
Entertaining video warping
Author :
Yang, Yingzhen ; Zhu, Yin ; Liu, Chunxiao ; Song, Chengfang ; Peng, Qunsheng
Author_Institution :
State Key Lab. of CAD & CG, Zhejiang Univ., Hangzhou, China
Abstract :
While various techniques of image deformation have been developed and extensively applied in animation and morphing, there are few works to extend these techniques to handle videos, especially real-time warping of a meaningful moving part in the video like human face. An efficient online algorithm is proposed in this paper to implement real-time face warping for video sequence. We employ AdaBoost to detect the sixteen human facial feature points and implement a fast face warping frame by frame while maintaining both temporal and spatial continuity of the warped video. In order to reduce the shaking of the detected facial feature points due to the noise in the video, we develop a novel model called Frame Buffer. All these procedures are designed efficient to guarantee the real-time performance of our system (15 fps). In addition, many other types of warping functions are also compatible with our framework. It is shown that our algorithm can be applied in real-time special effect editing in video as well as other entertainment applications.
Keywords :
computer animation; entertainment; face recognition; feature extraction; image morphing; image sequences; learning (artificial intelligence); spatiotemporal phenomena; video signal processing; AdaBoost algorithm; computer animation; entertaining video warping technique; entertainment application; frame buffer model; human face warping algorithm; image deformation; image morphing; real time facial feature point detection algorithm; temporal-and-spatial continuity; video sequence; Computer science; Face detection; Facial animation; Facial features; Glass; Humans; Noise reduction; Real time systems; Testing; Video sequences;
Conference_Titel :
Computer-Aided Design and Computer Graphics, 2009. CAD/Graphics '09. 11th IEEE International Conference on
Conference_Location :
Huangshan
Print_ISBN :
978-1-4244-3699-6
Electronic_ISBN :
978-1-4244-3701-6
DOI :
10.1109/CADCG.2009.5246908