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A programmable video codec system for low-bit-rate communication

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12 Author(s)
Matsuo, M. ; Div. of Corp. Semicond. Dev., Matsushita Electr. Ind. Co. Ltd., Japan ; Fujimoto, H. ; Kohashi, Y. ; Toujima, M.
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We have developed a programmable video codec system using a video codec DSP called VDSP1 X for low-bit-rate communication which performs realtime encoding and decoding using discrete cosine transform (DCT)-based algorithms, such as ITU-T H.261, H.263, and wavelet-based subband encoding algorithms. This system realizes real time encoding and decoding for QCIF frame sizes for both DCT-based algorithms and wavelet-based subband encoding algorithms in the same environment

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Consumer Electronics, IEEE Transactions on  (Volume:43 ,  Issue: 3 )