| 一种基于人类视觉系统的去块效应算法 |
| |
| 引用本文： | 许志良, 谢胜利. 一种基于人类视觉系统的去块效应算法[J]. 电子与信息学报, 2005, 27(11): 1717-1721. |
| |
| 作者姓名： | 许志良 谢胜利 |
| |
| 作者单位： | 华南理工大学电子与信息学院,广州,510641;江西师范大学物理与通信电子学院,南昌,330027;华南理工大学电子与信息学院,广州,510641 |
| |
| 基金项目： | 国家杰出青年科学基金;教育部跨世纪优秀人才培养计划;中国科学院资助项目 |
| |
| 摘 要： | 基于块离散余弦变换的图像和视频压缩主要缺点就是在低比特率时会在块边界出现明显的方块效应。本文提出一种充分利用人类视觉特性，在图像的平滑区和纹理区分别采用一维DCT域滤波和空间域滤波的去块效应算法。实验结果表明该算法既能有效地去除方块效应又能保护图像的边缘信息。
|
| 关 键 词： | 块离散余弦变换 方块效应 人类视觉系统 斜率均方差 |
| 收稿时间： | 2004-05-28 |
| 修稿时间： | 2004-10-15 |
A Deblocking Algorithm Based on HVS |
| |
| Xu Zhi-liang, Xie Sheng-li. A Deblocking Algorithm Based on HVS[J]. Journal of Electronics & Information Technology, 2005, 27(11): 1717-1721. |
| |
| Authors: | Xu Zhi-liang Xie Sheng-li |
| |
| Affiliation: | College of Electron. & Info. Eng., South China Univ. of Tech., Guangzhou 510641, China;College of Phys. and Electron. Comm. Eng., Jiangxi Normal Univ., Nanchang 330027, China |
| |
| Abstract: | A major drawback related to the Block-based Discrete Cosine Transform(BDCT)for image and video compression is that the decoded images,especially at very low bit rates,exhibit highly noticeable blocking artifact near the block boundaries.In this paper,a deblocking algorithm based on Human Visual System(HVS)is proposed.For smooth regions,one dimension DCT domains filter is applied to reduce the blocking artifacts,but for texture regions a spatial filter is used.The experimental results show that the proposed algorithm reduces the blocking artifacts effectively and preserves the original edges faithfully. |
| |
| Keywords: | Block-based discrete cosine transform Blocking artifacts Human visual system MSDS |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
