3-D PAC Video Codec for Wireless Transmission

• Main Authors: Jun-Lin Lin, 林君臨
• Other Authors: Kuei-Ann Wen
• Format: Others
• Language: en_US
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/77608378984769447788

碩士 === 國立交通大學 === 電子工程系 === 87 === To overcome the bandwidth limitation and to strengthen the channel effect immunity, a cube-based polynomial video coding scheme for mobile radio transmission is derived, named Three Dimensional Polynomial Approximation Coding (3-D PAC). It also possesses the features of low bit rate of transmission data, robustness for channel fading and simple computation scheme for real-time processing. Compared with the videophone standard H.261, it gains advantage on resisting channel noise to 3 dB with the same bit rate, and the superior subjective performance may be obtained. The hardware complexity of 3-D PAC is 80% of general MPEG2 implementation, while the PSNR of 3-D PAC is even superior to that of MPEG2 by 4.5dB. The simulations of wireless transmission as well as hardware simulation are attached.