Title :
Three-dimensional PAC video codec for wireless data transmission
Author :
Wen, Kuei-Ann ; Chen, An-Yi ; Lan, Yin-Jin ; Lin, Chia-Huang ; Chia-Huang Lin
Author_Institution :
Inst. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
12/1/2000 12:00:00 AM
Abstract :
A newly derived algorithm called three-dimensional polynomial approximation coding (3DPAC) is being utilized in the applications of wireless video transmission. After combining the spatial and temporal domain, the video data is organized in a cube form, which has the features of processing parallelism and great compression ratio. Such a very low bit-rate video codec is able to support the wireless data transmission with a bit rate lower than 9.6 kbits/s. The system architecture is presented and an experimental demonstration is also shown. For a video sequence of 176×144 frame size, a PSNR up to 35 dB may be obtained under 6.5 kbits/s transmission rate
Keywords :
data compression; image sequences; polynomial approximation; radiocommunication; video codecs; 3DPAC; 6.5 kbit/s; 9.6 kbit/s; compression ratio; cube form; parallelism; system architecture; three-dimensional PAC video codec; three-dimensional polynomial approximation coding; very low bit-rate video codec; video sequence; wireless data transmission; wireless video transmission; Bit rate; Data communication; Decoding; Mobile communication; Multimedia communication; Multimedia systems; Polynomials; Video codecs; Video compression; Wireless LAN;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
