Title :
Real-time video compression based-on three-dimensional matrix DCT
Author :
Zhijie, Zhao ; Hexin, Chen ; Xiangwen, Du ; Aijun, Sang
Author_Institution :
Coll. of Electron. Sci. & Eng., Jilin Univ., Changchun, China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
This paper presents a new video compression method based on the three-dimensional matrix DCT (3D-MDCT). This method adequately considers the correlation between the intraframe and interframe while regards them as a whole and makes them into a single mathematics model. 3D-MDCT algorithm is used in video system to eliminate the need for motion vectors computations or motion compensation computations. Experiments based on the parallel DSP system show that the proposed method can compress video image in real-time and the compression performance is better than MC/2D-DCT used in MPEG.
Keywords :
data compression; discrete cosine transforms; matrix algebra; motion compensation; real-time systems; video coding; 3D-matrix discrete cosine transform; MPEG; motion compensation computation; motion vector computation; parallel DSP system; real-time video compression; three-dimensional MDCT; video system; Decoding; Digital signal processing; Discrete cosine transforms; Educational institutions; Encoding; Entropy coding; Transform coding; Video compression; Video sequences; Videoconference;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1441529