Abstract
To prevent the loss of the information embedded in the generated variable bit rate data that is transmitted over a constant bit rate channel, several methods were proposed in MPEG TMN5, H.263+ TMN5, and TMN8. In these methods, the quantity of coded data is controlled by adjusting the coding parameters according to the amount of data remaining in the buffer. Because this control is based on the past coded information and does not reflect the nature of the image being coded, there is no assurance that sufficient image quality will be obtained. In this paper, we present a Smooth Pursuit Eye Movement (SPEM) coding scheme to control the generated variable bit rate data over a constant bit rate channel for non real-time video applications and show the improvements over the encoding using the TMN H263+ codec. This can be considered as a method to control the bit rate in accordance with the characteristics of human visual perception using the combination of feedforward control, feed-backward control, and model-based approaches.
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References
A. Y. Lan, A. G. ZNguyen, and J. N. Hwang, “Scene Context Dependent Reference-Frame Placement for MPEG Video Coding,” IEEE Transactions on Circuits and Systems for Video Technology, Vol. 9, No. 3, April 1999.
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U-T/SG-15, Video codec test model, TM5, Jan. 1995 and TM8, Jan. 1997.
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© 2001 Springer-Verlag Berlin Heidelberg
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Nguyen, A.G., Hwang, JN. (2001). SPEM Rate Control. In: Shum, HY., Liao, M., Chang, SF. (eds) Advances in Multimedia Information Processing — PCM 2001. PCM 2001. Lecture Notes in Computer Science, vol 2195. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45453-5_19
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DOI: https://doi.org/10.1007/3-540-45453-5_19
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Online ISBN: 978-3-540-45453-3
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