Title :
Hybrid spatial scalable video codec for HDTV video images
Author :
Seirafian, Vahid Reza ; Naderpour, Iman ; Ghanaati, Omid ; Teymouri, Jalal
Author_Institution :
Dept. of Electron. Eng., Islamic Azad Univ., Meymeh, Iran
Abstract :
In this paper, a scalable hybrid video codec has been developed for HDTV video signals. The intra frame pictures are coded based on wavelet transform and inter frame pictures are coded with a standard MPEG-2 codec. By scalable coding of HDTV, channels transmit with various speeds and capacities; In addition, receivers can work at different resolutions. Base layer and enhancement layer of the frame picture are coded with same codec. This paper compares scalable hybrid coding with scalable MPEG-2 codec and scalable DWT2 method for HDTV video signals. It is showed that the quality of intra frame improves by using the proposed codec in comparison with two other methods. By this improvement, the quality of sequence increases.
Keywords :
high definition television; video codecs; video coding; HDTV video images; HDTV video signals; base layer; enhancement layer; hybrid spatial scalable video codec; inter frame; intra frame pictures; receivers; scalable DWT2 method; scalable MPEG-2 codec; scalable coding; scalable hybrid coding; scalable hybrid video codec; standard MPEG-2 codec; wavelet transform; Bit rate; Codecs; Discrete wavelet transforms; HDTV; Image coding; PSNR; Transform coding; DCT; DWT2; HDTV; SPIHT; Scalability;
Conference_Titel :
Computer Applications and Industrial Electronics (ICCAIE), 2011 IEEE International Conference on
Conference_Location :
Penang
Print_ISBN :
978-1-4577-2058-1
DOI :
10.1109/ICCAIE.2011.6162158
