Title :
Noise Variance Adaptive SEA for Block Motion Estimation
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 :
image sequences; motion estimation; video coding; block motion estimation; noise variance adaptive SEA; noise variance adaptive two-stage successive elimination algorithm; 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 :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345642
