A new cubic rate distortion model for low-delay video communication

Kam Fai Lo; Kin Man Lam

doi:10.1109/ISCAS.2005.1465653

A new cubic rate distortion model for low-delay video communication

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

A new rate model based on a cubic function, and its related control schemes, is proposed to estimate the quantization scales of frames for a specified target bit rate. Our scheme is based on a distortion-rate model, which can easily be extended to a higher order for different coding algorithms without requiring much effort to determine the quantization scales. The formulation of the cubic model is derived from the quadratic rate-distortion model and from simple curve fitting. Our model is implemented in H.264 JM8.1a, and the performance is compared to JM8.1a with different test sequences and bit rates. Experimental results show that our proposed model outperforms the quadratic model in terms of both PSNR and bit rate.

Original language	English
Article number	1465653
Pages (from-to)	4586-4589
Number of pages	4
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
DOIs	https://doi.org/10.1109/ISCAS.2005.1465653
Publication status	Published - 1 Dec 2005
Event	IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan Duration: 23 May 2005 → 26 May 2005

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/ISCAS.2005.1465653

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abstract = "A new rate model based on a cubic function, and its related control schemes, is proposed to estimate the quantization scales of frames for a specified target bit rate. Our scheme is based on a distortion-rate model, which can easily be extended to a higher order for different coding algorithms without requiring much effort to determine the quantization scales. The formulation of the cubic model is derived from the quadratic rate-distortion model and from simple curve fitting. Our model is implemented in H.264 JM8.1a, and the performance is compared to JM8.1a with different test sequences and bit rates. Experimental results show that our proposed model outperforms the quadratic model in terms of both PSNR and bit rate.",

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AU - Lam, Kin Man

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AB - A new rate model based on a cubic function, and its related control schemes, is proposed to estimate the quantization scales of frames for a specified target bit rate. Our scheme is based on a distortion-rate model, which can easily be extended to a higher order for different coding algorithms without requiring much effort to determine the quantization scales. The formulation of the cubic model is derived from the quadratic rate-distortion model and from simple curve fitting. Our model is implemented in H.264 JM8.1a, and the performance is compared to JM8.1a with different test sequences and bit rates. Experimental results show that our proposed model outperforms the quadratic model in terms of both PSNR and bit rate.

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T2 - IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005

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ER -

A new cubic rate distortion model for low-delay video communication

Abstract

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