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TRANSCODER AND TRANSCODING METHOD OPERATING IN A TRANSFORM DOMAIN FOR VIDEO CODING SCHEMES POSSESSING DIFFERENT TRANSFORM KERNELS
TRANSCODER AND TRANSCODING METHOD OPERATING IN A TRANSFORM DOMAIN FOR VIDEO CODING SCHEMES POSSESSING DIFFERENT TRANSFORM KERNELS
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机译:在具有不同转换内核的视频编码方案的转换域中操作的代码转换器和编码方法
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摘要
A transcoder for converting a digital video signal from a first format into a second format in transform domain. The first format and the second format are respectively adopted by video coding schemes possessing different DCT transform kernels. The transcoder includes: a transform-domain decoder, coupled to the digital video signal, for decoding the digital video signal of the first format to generate a first DCT-domain signal, the first DCT-domain signal corresponding to a first DCT transform of the first format in the transform domain; a transform kernel converter, coupled to the transform-domain decoder, for converting the first DCT-domain signal into a second DCT-domain signal, the second DCT-domain signal corresponding to a second DCT transform of the second format in the transform domain; and a transform-domain encoder, coupled to the transform kernel converter, for generating a resultant video signal encoded in the second format according to the second DCT domain signal.
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