A deblocking scheme using DCT domain and space domain filtering
文献类型：会议论文
| 作者 | Zhang, Xuequan; Chen, Xiaomin |
| 出版日期 | 2012 |
| 会议名称 | 2nd World Congress on Computer Science and Information Engineering, CSIE 2011 |
| 会议日期 | June 17, 2011 - June 19, 2011 |
| 会议地点 | Changchun, China |
| 页码 | 459-466 |
| 通讯作者 | Zhang, X. (zhang_x.q@163.com) |
| 中文摘要 | Block Discrete Cosine Transform (BDCT) based image compression often introduces quantization noise which exhibits blocking artifacts in the reconstructed images especially when the compression ratio is high. In this paper, we propose a new deblocking scheme for the BDCT compressed images. First, we define shift block and DCT domain bandwidth, and filter the shift blocks of the image according to the bandwidths of neighbor blocks. Then we regularize the DCT domain values using the quantization coefficients table. Finally we construct a space domain adaptive rational filter to smooth the block edges. The experimental results show that the proposed method is effective and robust in both objective and subjective measures across a variety of images and exhibits more satisfactory performance as compared to other declocking techniques. © 2012 Springer-Verlag Berlin Heidelberg. |
| 英文摘要 | Block Discrete Cosine Transform (BDCT) based image compression often introduces quantization noise which exhibits blocking artifacts in the reconstructed images especially when the compression ratio is high. In this paper, we propose a new deblocking scheme for the BDCT compressed images. First, we define shift block and DCT domain bandwidth, and filter the shift blocks of the image according to the bandwidths of neighbor blocks. Then we regularize the DCT domain values using the quantization coefficients table. Finally we construct a space domain adaptive rational filter to smooth the block edges. The experimental results show that the proposed method is effective and robust in both objective and subjective measures across a variety of images and exhibits more satisfactory performance as compared to other declocking techniques. © 2012 Springer-Verlag Berlin Heidelberg. |
| 收录类别 | EI |
| 会议录 | Lecture Notes in Electrical Engineering
 |
| 会议录出版者 | Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany |
| 学科主题 | 空间技术 |
| 语种 | 英语 |
| ISSN号 | 1876-1100 |
| ISBN号 | 9783642257919 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/2968]  |
| 专题 | 国家空间科学中心_空间技术部 |
| 推荐引用方式 GB/T 7714 | Zhang, Xuequan,Chen, Xiaomin. A deblocking scheme using DCT domain and space domain filtering[C]. 见:2nd World Congress on Computer Science and Information Engineering, CSIE 2011. Changchun, China. June 17, 2011 - June 19, 2011. |
入库方式： OAI收割
来源：国家空间科学中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。