An Optimal Bit Rate Allocation Algorithm for the Intra-Frame FGS Video Coding

WEN Zhen-kun; ZHANG Ji-hong; SUN Li-feng

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An Optimal Bit Rate Allocation Algorithm for the Intra-Frame FGS Video Coding

更新时间：2025-07-16

- An Optimal Bit Rate Allocation Algorithm for the Intra-Frame FGS Video Coding
- Acta Electronica Sinica Vol. 35, Issue 4, Pages: 761-765(2007)
- 作者机构：
  
  1. 深圳大学信息工程学院,广东,深圳,518060
  2. 清华大学计算机系,北京,100084
  3. 深圳大学信息工程学院广东深圳,518060
  4. 清华大学计算机系北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN915.43
- Published：2007
- 稿件说明：
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WEN Zhen-kun, ZHANG Ji-hong, SUN Li-feng. An Optimal Bit Rate Allocation Algorithm for the Intra-Frame FGS Video Coding[J]. Acta Electronica Sinica, 2007, 35(4): 761-765.
DOI：

WEN Zhen-kun, ZHANG Ji-hong, SUN Li-feng. An Optimal Bit Rate Allocation Algorithm for the Intra-Frame FGS Video Coding[J]. Acta Electronica Sinica, 2007, 35(4): 761-765. DOI：

摘要

MPEG-4 FGS是MPEG-4中精细可扩展性编码方法

由于采用帧8*8交织的位平面编码结构

无法支持帧内区域级的动态码率分配

不适合基于内容的增强和流化传输

针对MPEG-4 FGS这编码限制

本文根据MPEG-7的内容描述标准

提出了一种基于帧内区域的细粒度可扩展A-FGS编码

实现了实时的帧内区域流化编码

并就该编码提出了一种最优码率分配算法.利用帧内区域8*8宏块高位平面非零系数很少的特点

提出了动态码率分配算法

使在中等码率范围内编码效率提高了0.5dB左右.

Abstract

MPEG-4 FGS is a fine-grain scalable coding method for MPEG-4.The 8*8 frame interlaced bit-plane coding structure used by the MPEG-4 FGS coding does not support intra-frame dynamic bit rate allocation

and therefore is incapable of supporting content-based streaming transport.Regarding the limitation of the MPEG-4 FGS coding

we propose an intra-frame fine-granular scalable coding method (A-FGS) based on the MPEG-7 content description standard to achieve the goal of real-time intra-frame streaming coding.An optimal bit rate allocation algorithm is also provided for the A-FGS coding method.By using the characteristic of having few non-zero coefficient in the intra-frame 8*8 macro-block high bit-plane

we apply a dynamic bit rate allocation method to improve the coding efficiency in mid bit rate range by about 0.5dB.

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Related Institution

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