書誌事項
- タイトル別名
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- Improvement of JPEG Decoded Images based on Image Restoration Method
- レッカ ガゾウ フクゲンホウ オ モチイタ JPEG ガゾウ ノ センメイカ
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説明
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.
収録刊行物
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- 日本法科学技術学会誌
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日本法科学技術学会誌 11 (1), 29-40, 2006
日本法科学技術学会