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Showing 1 to 4 of 4 for “"IDCT"”.
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Design and evaluation of a data-dependent low-power 8x8 DCT/IDCT
… Discrete Cosine Transform (DCT)/ Inverse DCT (IDCT) algorithms have focused on reducing arithmetic complexity and have fixed run-time complexities regardless of the input. Recently, data-dependent signal processing has been applied to the DCT/IDCT. These algorithms have variable run-time …
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On the Low Power Design of DCT and IDCT for Low Bit Rate Video Codecs
… (DCT) and the Inverse Discrete Cosine Transform (IDCT), which perform spatial compression and decompression of the data. In an ASIC implementation of H.263, the high computational complexity of the DCT and IDCT leads to high power dissipation of the blocks. Low power design of the DCT and IDCT is …
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Low power data-dependent transform video and still image coding
… processing implementing the DCT and its inverse (IDCT). The IDCT core processor exploits the presence of a large number of zerovalued spectral coefficients in the input stream when stimulated with MPEG-compressed video sequences. Adata-driven IDCT computation algorithm along with clock gating …
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Fast implementation of integer transforms in H.264/AVC video encoders
The Integer Discrete Cosine Transform (IDCT) and Hadamard transforms are adopted in the H.264/AVC standard encoder for the compression of residual video signals. Other video standards such as the H.261, H.262 and H.263 use Discrete Cosine Transform (DCT).