Title :
Real-time PC-based software implementation of H.261 video codec
Author :
Hsiau, Den-Yuan ; WU, JA-LING
Author_Institution :
Commun. & Multimedia Lab., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
11/1/1997 12:00:00 AM
Abstract :
The complexity of a video codec has made it seems impossible to accomplish an audio-visual application without using application specific integrated circuits (ASICs). However, the advances in the computing power of microprocessors have made the development of software-based multimedia applications more feasible. More and more complicated tasks with a heavy computation load can be realized on the basis of the general purpose CPU. A PC-based software H.261 video codec, which is suitable for real-time constraint applications such as the video-phone and video-conferencing, is presented. The whole video codec system works on the Pentium-133
Keywords :
code standards; discrete cosine transforms; microcomputer applications; microprocessor chips; multimedia communication; real-time systems; software engineering; telecommunication computing; telecommunication standards; teleconferencing; transform coding; video codecs; video coding; videotelephony; DCT; H.261 video codec; IDCT; ITU; International Telecommunication Union; Pentium-133; audio-visual application; discrete cosine transform; general purpose CPU; inverse discrete cosine transform; microprocessors; real-time PC-based software; real-time constraint applications; software-based multimedia applications; video coding standard; video-phone; videoconferencing; Application software; Application specific integrated circuits; Central Processing Unit; Computer science; Decoding; Discrete cosine transforms; Huffman coding; ISDN; Power engineering and energy; Video codecs;
Journal_Title :
Consumer Electronics, IEEE Transactions on
