| Research on the Bit Computation Model for Time Variable Channel Bandwidth |
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| 引用本文： | ZHANG Jian HUANG Min HAN Guoqiang. Research on the Bit Computation Model for Time Variable Channel Bandwidth[J]. 武汉大学学报:自然科学英文版, 2007, 12(3): 442-446. DOI: 10.1007/s11859-006-0084-3 |
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| 作者姓名： | ZHANG Jian HUANG Min HAN Guoqiang |
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| 作者单位： | [1]Department of Computer Science, Guangdong Textile Polytechnic, Foshan 528041, Guangdong, China [2]School of Computer Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China（60673191） and the National Education and Science Tenth Five-Year Planning Major Projects Funds（AYA010034） |
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| 摘 要： | For the encoding bit-rate problem in H.264 wireless video communication,this paper analyzes the bit-rate computation model and the Mean Square Error distortion model,establishes the relation between the quantization parameter of the encoding bit-rate and the intra frame refresh rate of the macro block,and put forward a new ideal about the coding rate on the basis of general binomial computation model theory. Furthermore,this method not only can adaptively adjust the bit allocation and quantization parameter and prevents buffer from overflowing downward or upward under given network bandwidth,but also can apply the rate-distortion to optimize the solution method,control the encoding bits accurately and optimizes the allocation between the intra and inter frame encoding macro block.
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| 关 键 词： | 比特率 计算模型 时变信道 带宽 |
| 文章编号： | 1007-1202（2007）03-0442-05 |
| 收稿时间： | 2006-08-15 |
| 修稿时间： | 2006-08-15 |
Research on the bit computation model for time variable channel bandwidth |
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| Zhang Jian,Huang Min,Han Guoqiang. Research on the bit computation model for time variable channel bandwidth[J]. Wuhan University Journal of Natural Sciences, 2007, 12(3): 442-446. DOI: 10.1007/s11859-006-0084-3 |
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| Authors: | Zhang Jian Huang Min Han Guoqiang |
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| Affiliation: | (1) Department of Computer Science, Guangdong Textile Polytechnic, Foshan, 528041, Guangdong, China;(2) School of Computer Science and Engineering, South China University of Technology, Guangzhou, 510640, Guangdong, China |
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| Abstract: | For the encoding bit-rate problem in H.264 wireless video communication, this paper analyzes the bit-rate computation model and the Mean Square Error distortion model, establishes the relation between the quantization parameter of the encoding bit-rate and the intra frame refresh rate of the macro block, and put forward a new ideal about the coding rate on the basis of general binomial computation model theory. Furthermore, this method not only can adaptively adjust the bit allocation and quantization pa rameter and prevents buffer from overflowing downward or upward under given network bandwidth, but also can apply the rate-distortion to optimize the solution method, control the encoding bits accurately and optimizes the allocation between the intra and inter frame encoding macro block. |
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| Keywords: | H.264 video criterion rate-distortion function theory of information bit-rate refresh rate |
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