NDLI: Image Error Concealment Using Optimized Local Pixel Matching and Directional Interpolation

Content Provider	IEEE Xplore Digital Library
Author	Sirikham, A. Kumwilaisak, W.
Copyright Year	2007
Description	Author affiliation: Commun. & Multimedia Lab., King Mongkut's Univ. of Technol., Bangkok (Sirikham, A.; Kumwilaisak, W.)
Abstract	In this paper, we present a new spatial error concealment algorithm with optimized local pixel matching and directional interpolation. First, we apply a variant version of dynamic programming to image pixels around a corrupted image region. This process provides best-aligned pixel pairs from boundary pixels around the corrupted image region to dynamically estimate local image textures. Then, with derived corresponding pixel pairs, we use directional interpolation to recover image pixels in the corrupted image region. With both optimized local matching algorithm and directional interpolation, we match pixels using the pixel sequences from the upper and lower of the lost region, the pixel sequences from the left and the right of the lost region, the pixel sequences from the upper and the left of the lost region, and pixel sequences from the lower and the right of the lost region. We select the best matching based on the set up criterion and use them for error concealment. From experimental results, the proposed spatial error concealment provides the enhancement of the dynamic capability in capturing the image texture comparing to previous works as well as subjective and objective quality improvement of concealment results in recovering the lost region of images com paring to previous works.
Starting Page	939
Ending Page	944
File Size	6819470
Page Count	6
File Format	PDF
ISBN	9788955191318
ISSN	17389445
DOI	10.1109/ICACT.2007.358514
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-12
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	ETRI, NIA
Subject Keyword	Pixel Interpolation Image edge detection Image texture Decoding Discrete cosine transforms Electronic mail Dynamic programming Multimedia communication Laboratories direction interpolation Intra-frame error concealment dynamic programming
Content Type	Text
Resource Type	Article

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