Title :
MPEG-2 to MPEG-4 transcoder using object-based motion vector clustering
Author :
Kim, Jae-Won ; Kim, Yoon ; Park, Sang-Hee ; Choi, Kang-Sun ; Ko, Sung-Jea
Author_Institution :
Dept. of Electron. Eng., Korea Univ., Seoul, South Korea
Abstract :
We present an MPEG-2 to MPEG-4 transcoder using an object-based motion vector clustering (OMVC) method which can skip frames dynamically and reduce the spatial resolution of frames arbitrarily. Experimental results show that the proposed transcoder using the OMVC method outperforms the existing method with better visual quality.
Keywords :
image motion analysis; image resolution; parameter estimation; pattern clustering; vectors; video coding; DCT domain transcoding; MPEG-2; MPEG-4; discrete cosine transform; motion vector estimation; object-based motion vector clustering; spatial resolution; transcoder; visual quality; Bit rate; Clustering algorithms; Decoding; Discrete cosine transforms; Error compensation; MPEG 4 Standard; Motion estimation; Spatial resolution; Transcoding;
Conference_Titel :
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on
Print_ISBN :
0-7803-7721-4
DOI :
10.1109/ICCE.2003.1218790
