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边缘指导的BDCT压缩图像的后处理算法
文伟; 肖志云; 彭思龙; WenWei; XiaoZhiyun; PengSilong,
Source Publication计算机辅助设计与图形学学报
2005
Volume17Issue:(9)Pages:2022-2028
Other AbstractIn this paper, an edge-based adaptive post-processing technique is proposed , w ith the aim to remove the blocking artifacts as w ell as ringing artifacts especially in the situation where edges in the coded image degrade seriously.The proposed algorithm takes tw o main steps : deblocking step and deringing step. In the deblocking step the blocks are classified as low frequency or high frequency blocks first , then different methods will be adopted to remove the block artifacts acco rding to the flatness along the block boundary.In the deringing step , the image is divided into three parts : main edge vicinity area , detail edge area and flat area according to the result of edge detection.Then different filters will be used to different areas.In this way , both the artifacts beside the strong edge and detail edge w ill be removed and it w ill not introduce new blur.Simulation results show that the subjective perceived quality as w ell as objective evaluation is improved.
Keyword压缩图像后处理 块离散余弦变换 振铃效应 块失真
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/12991
Collection智能制造技术与系统研究中心_多维数据分析
Corresponding Author文伟
Recommended Citation
GB/T 7714
文伟,肖志云,彭思龙,等. 边缘指导的BDCT压缩图像的后处理算法[J]. 计算机辅助设计与图形学学报,2005,17((9)):2022-2028.
APA 文伟,肖志云,彭思龙,WenWei,XiaoZhiyun,&PengSilong,.(2005).边缘指导的BDCT压缩图像的后处理算法.计算机辅助设计与图形学学报,17((9)),2022-2028.
MLA 文伟,et al."边缘指导的BDCT压缩图像的后处理算法".计算机辅助设计与图形学学报 17.(9)(2005):2022-2028.
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