Title :
Noise Variance Adaptive SEA for Motion Estimation: A Two-Stage Schema
Author_Institution :
Sch. of Comput. & Inf. Eng., Zhejiang Gongshang Univ., Hangzhou
Abstract :
In a practical video encoder, a video sequence obtained from a CCD camera inevitably conveys noise, which degrades not only image quality but also coding efficiency. Based on the statistic analysis of noise signal, a noise variance adaptive two-stage successive elimination algorithm (NVA-SEA) for block motion estimation is presented. Simulation results demonstrate that the proposed algorithm can get close performance to the full search, while the computation time has been significantly reduced
Keywords :
adaptive signal processing; image sequences; motion estimation; statistical analysis; video coding; CCD camera; block motion estimation; noise signal statistic analysis; noise variance adaptive two-stage successive elimination algorithm; video coding; video encoder; video sequence; Analysis of variance; Charge coupled devices; Charge-coupled image sensors; Degradation; Image coding; Image motion analysis; Image quality; Motion estimation; Statistical analysis; Video sequences;
Conference_Titel :
Pattern Recognition, 2006. ICPR 2006. 18th International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
0-7695-2521-0
DOI :
10.1109/ICPR.2006.859
