中国科学技术大学自动化系,安徽,合肥,230027
纸质出版:2013
移动端阅览
於俊, 汪增福. 极低码率下的2D-3D人脸视频编解码[J]. 电子学报, 2013,41(1):185-192.
YU Jun, WANG Zeng-fu. 2D-3D Facial Video Coding/Decoding at Ultra-low Bit-rate[J]. Acta Electronica Sinica, 2013, 41(1): 185-192.
於俊, 汪增福. 极低码率下的2D-3D人脸视频编解码[J]. 电子学报, 2013,41(1):185-192. DOI: 10.3969/j.issn.0372-2112.2013.01.032.
YU Jun, WANG Zeng-fu. 2D-3D Facial Video Coding/Decoding at Ultra-low Bit-rate[J]. Acta Electronica Sinica, 2013, 41(1): 185-192. DOI: 10.3969/j.issn.0372-2112.2013.01.032.
针对动态变化背景下的人脸视频编解码问题
该文提出了一种2D-3D混合编解码系统;具体包括:(1)基于多种观测信息
在线外观模型和粒子滤波的人脸三维运动跟踪;(2)结合参数模型与肌肉模型的3D人脸动画合成;(3)基于头发检测和3D头发模型的头发合成;(4)无缝地拼接前景的三维编解码结果和背景的二维编解码结果.在极低码率下
客观实验表明
该系统在编码效率和解码质量上有较好的综合优势.主观实验表明
该系统的解码结果在脸部具有较高的辨识度.
For facial video coding/decoding with dynamic background
a 2D/3D mixed system was proposed
it includes:(1)multi-measurements and online appearance models were applied to track 3D facial motion from video in framework of particle filter;(2)3D facial animation was produced combining parameterized model and muscular model;(3)3D hair was synthesized based on hair detection and 3D hair model;(4)3D coding/decoding result of foreground and 2D coding/decoding result of background were stitched seamlessly.At ultra-low bit-rate
the object experiment confirmed the comprehensive advantage between coding efficiency and decoding quality of this system
the between subjects experiment indicated the suitability of subjective face identification by it.
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