日本法科学技術学会誌
Online ISSN : 1881-4689
Print ISSN : 1880-1323
ISSN-L : 1880-1323
原著
劣化画像復元法を用いたJPEG画像の鮮明化
藤田 和弘貴田 明宏稲垣 昭生
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ジャーナル フリー

2006 年 11 巻 1 号 p. 29-40

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抄録

JPEG images are degraded by blocking artifacts and mosquito noise caused by quantization on the block DCT domain. The purpose of this paper is reduction of image quality degradation by means of the image restoration method instead of the smoothing method after the simple decoding. This proposed method is based on the edge-adaptive restoration method; the regularizing operator depends on the edge orientation, and the regularizing parameter depends on the local activity. The variance of the quantization on the block DCT domain is taken into consideration.

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© 2006 日本法科学技術学会
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