Edge-based adaptive post-processing technique for block-based discrete cosine transform coded images
Wen, Wei; Xiao, Zhiyun; Peng, Silong,; Wen Wei
2005
发表期刊Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics
卷号17期号:(9)页码:2022-2028
摘要In 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.
关键词压缩图像后处理 块离散余弦变换 振铃效应 块失真
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/12997
专题智能制造技术与系统研究中心_多维数据分析
通讯作者Wen Wei
推荐引用方式
GB/T 7714
Wen, Wei,Xiao, Zhiyun,Peng, Silong,,et al. Edge-based adaptive post-processing technique for block-based discrete cosine transform coded images[J]. Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics,2005,17((9)):2022-2028.
APA Wen, Wei,Xiao, Zhiyun,Peng, Silong,,&Wen Wei.(2005).Edge-based adaptive post-processing technique for block-based discrete cosine transform coded images.Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics,17((9)),2022-2028.
MLA Wen, Wei,et al."Edge-based adaptive post-processing technique for block-based discrete cosine transform coded images".Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics 17.(9)(2005):2022-2028.
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