文章基本信息

标题：運動劣化JPEG画像の鮮明化およびスペクトル特性を用いたパラメータ推定
本地全文：下载
作者：門野浩二 ; 藤田和弘 ; 中森伸行等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2011
卷号：65
期号：11
页码：1603-1612
DOI：10.3169/itej.65.1603
出版社：The Institute of Image Information and Television Engineers
摘要：We propose a method for deblurring motion-blurred JPEG images that is based on an image restoration method. Motion-blurred JPEG images are degraded by the motion-blur as well as JPEG coding and decoding processes. The quantization noise on the JPEG coding, decoding, and the edge orientation are taken into consideration in this method. The results from our computer simulation prove the effectiveness of our method: while the images restored by the conventional restoration method are noisy, but the images deblurred using our proposed method are much better. Our method implicitly estimates the parameters by evaluating the deblurred image. The evaluation of the deblurred image is based on the skewness of the power spectrum of the output, which is obtained by applying a Measurement Differencing Filter to the deblurred image.
关键词：運動劣化;JPEG;リンギング;パワースペクトル;ゆがみ;観測値差分フィルタ