Abstract
A real-time, low-power video encoder design for pyramid vector quantization (PVQ) has been presented. The quantizer is estimated to dissipate only 2.1 mW for real-time video compression of images of 256 × 256 pixels at 30 frames per second in standard 0.8-micronCMOS technology with a 1.5 V supply. Applying this quantizer to subband decomposed images, the quantizer performs better than JPEG on average. We achieve this high level of power efficiency with image quality exceeding that of variable rate codes through algorithmic and architectural reformulation. The PVQ encoder is well-suited for wireless, portable communication applications.
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Namgoong, W., Meng, T.H. A Low-Power Encoder For Pyramid Vector Quantization of Subband Coefficients. The Journal of VLSI Signal Processing-Systems for Signal, Image, and Video Technology 16, 9–23 (1997). https://doi.org/10.1023/A:1007905725622
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DOI: https://doi.org/10.1023/A:1007905725622