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Comparison of vector quantized video codecs

Lookup NU author(s): Lee Scargall, Professor Satnam Dlay

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Abstract

In this paper, an image sequence coding scheme for very low bit-rate video coding is presented. The new technique utilizes windowed overlapped block matching motion compensation for the temporal coding scheme, and vector quantization to reduce the spatial redundancy within the predicted image. There are many advantages associated with VQ, especially its capacity to operate in error-resilient coding systems and furthermore, VQ does not suffer from blocking effects that are visually disjointed and has therefore a major advantage over DCT based methods. We examine the performance of various codebooks to remove the spatial redundancy within the difference frame. When the codec is configured to operate at 10.1 kbit/s, average PSNR values in excess of 32.86 dB and 25.6 dB are achieved for the `Miss America' and `Carphone' sequences respectively.


Publication metadata

Author(s): Scargall Lee David, Dlay Satnam Singh

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceedings of SPIE - The International Society for Optical Engineering

Year of Conference: 1999

Pages: 502-508

Publisher: S P I E - International Society for Optical Engineering

URL: http://dx.doi.org/10.1117/12.337439

DOI: 10.1117/12.337439


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