| 基于低通滤波的彩色图像多模式自适应系统 |
| |
| 引用本文： | 杨博,周孝宽.基于低通滤波的彩色图像多模式自适应系统[J].北京航空航天大学学报,2002,28(2):213-216. |
| |
| 作者姓名： | 杨博 周孝宽 |
| |
| 作者单位： | 北京航空航天大学,宇航学院,北京,100083 |
| |
| 摘 要： | 在彩色图像压缩中,"分量编码"技术已较为成熟,JPEG(Joint Photographic Experts Group)是其主要的代表之一.但对于一些要求速度较高的场合,仍不能满足要求.通过对这一技术中的各个环节的研究发现,将YUV空间进行旋转,使图像色域发生变化,压缩结果可得到改善.比较各种插值方法对恢复图像质量的影响,采用了二维重叠数字低通滤波器进行插值,同时配合使用快速的单色多模式自适应压缩算法,从而使系统不但有较宽的适用范围,而且在一定的压缩倍数范围内,恢复信噪比比JPEG高.
|
| 关 键 词： | 滤波器 算法 图像编码 彩色图像 |
| 文章编号： | 1001-5965(2002)02-0213-04 |
| 收稿时间： | 2000-08-23 |
| 修稿时间： | 2000年8月23日 |
A Multi-Mode Self-Adaptive Compression System for Color Images Based on Low Pass Filter |
| |
| A Multi-,YANG Bo,ZHOU Xiao-kuan.A Multi-Mode Self-Adaptive Compression System for Color Images Based on Low Pass Filter[J].Journal of Beijing University of Aeronautics and Astronautics,2002,28(2):213-216. |
| |
| Authors: | A Multi- YANG Bo ZHOU Xiao-kuan |
| |
| Institution: | Beijing University of Aeronautics and Astronautics, School of Astronautics |
| |
| Abstract: | To overcome the drawbacks of available techniques in rapid real time processing of color images, a color image compression system with higher processing rate and higher PSNR was put forward. It was found that with the rotation of YUV space, the chromatogram of an original image can be changed and so the compression effect can be improved. By comparing the effects of available interpolation methods on the quality of the last image restored, a two dimensional digital over lap low pass filter was used, combined with a monochromatic multi mode self adaptive compression method. By the computer testes, it was demonstrated that the proposed system has an obviously higher processing rate and PSNR than JPEG method within a fixed range of compression ratio. |
| |
| Keywords: | filter algorithms picture coding color image |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《北京航空航天大学学报》浏览原始摘要信息 |
| 点击此处可从《北京航空航天大学学报》下载免费的PDF全文 |
|
