Simple drift error-resilient H.264/AVC encoder for fast video transcoding using DCT coefficients

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Abstract

As described in this paper, an encoder that generates drift-error-resilient coded bitstreams is proposed. The proposed drift-error-resilient bitstreams are generated using the TotalCoeff or the total amount of non-zero DCT coefficients to estimate the drift-error distortion. This estimated drift error distortion is then examined in the motion estimation process. Results show that our proposed method can decrease drift error effectively compared to the original encoder and that it can achieve comparable PSNR to a conventional drift-error-resilient encoder. The main advantage of the proposed method compared to a conventional drift-error-resilient encoder is that, comparable PSNR performance, lower complexity and memory usage can be achieved without implementing an open-loop transcoder at the encoder feedback loop. © 2011 Elsevier Ltd. All rights reserved.

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Cheng, K. L., Uchihara, N., & Kasai, H. (2012). Simple drift error-resilient H.264/AVC encoder for fast video transcoding using DCT coefficients. In Computers and Mathematics with Applications (Vol. 64, pp. 1420–1430). https://doi.org/10.1016/j.camwa.2012.03.089

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