搜索结果: 1-6 共查到“Mpeg 4 FGS”相关记录6条 . 查询时间(0.062 秒)
基于感兴趣区的MPEG-4 FGS增强层码率分配算法
MPEG-4FGS 选择性增强 感兴趣区
2009/4/30
该文提出了一种基于感兴趣区的MPEG-4 FGS增强层码率分配算法。该算法在建立一种针对感兴趣区的率失真模型的基础上,在等质量的约束条件下,可以实现选择性增强后FGS增强层码率的优化分配。实验结果表明,与平均码率分配算法相比,该算法可以显著降低视频图像中人眼感兴趣区域重建质量的波动。同时,该算法的计算复杂度低,完全能满足视频服务器实时码率分配的要求。
端到端MPEG-4 FGS视频TCP友好的平滑传输
2007/11/2
Yin H, Lin C, Zhang Q, Jiang YX. End-to-End MPEG-4 FGS video transmission based on smoothing and TCP-friendly rate control. Journal of
Software, 2005,16(5):931-939.DOI: 10.1360/jos160931 http://www....
一类MPEG-4 FGS流视频传输的质量定义及算法
MPEG-4 FGS 质量定义 传输策略 视频分段 场景 状态迁移
2007/11/1
基于PSNR(MSE)指出了MPEG-4 FGS流视频客观质量和质量变化指标的相关定义，讨论了视频分段场景基础上的质量最优化问题，通过状态迁移图和动态规划给出了FGS流视频的最优传输策略，并且用试验数据对FGS流视频的优化传输的控制粒度及实时传输算法进行了对比分析.
Statistical Model, Analysis and Approximation of Rate-Distortion Function in MPEG-4 FGS Videos
Statistical Model Analysis Approximation Rate-Distortion Function in MPEG-4 FGS Videos
2010/12/16
In this paper, we propose an object detection approach using spatial histogram features. As spatial histograms consist of marginal distributions of an image over local patches, they can preserve textu...
Statistical Model, Analysis and Approximation of Rate-Distortion Function in MPEG-4 FGS Videos
Statistical Model Rate-Distortion Function MPEG-4 FGS Videos
2010/12/15
Fine-granular scalability (FGS) has been accepted as the streaming profile of MPEG-4 to provide a flexible foundation for scaling the enhancement layer (EL) to accommodate variable network capacity. T...
A Novel Statistical Distortion Model Based on Mixed Laplacian and Uniform Distribution of Mpeg-4 FGS
Mpeg 4 FGS Bit Plane Scalable coding Distortion Statistical model
2014/3/12
The Laplacian Distribution has been widely used to characterize the distribution of DCT coefficients in a great deal of research on statistical attributes of DCT for the reason that Laplacian distribu...