Performance of statistical inference for block classification in reducing blocking artefact in video coded images

Chowdhury, Morshed, Ray, Sid and Pham, Thao 2004, Performance of statistical inference for block classification in reducing blocking artefact in video coded images, in CSITeA'04 : Third International Conference on Computer Sciences, Software Engineering, Information Technology, E-Business and Applications, International Society for Computers and Their Applications (ISCA), Cairo, Egypt, pp. 1-4.

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Title Performance of statistical inference for block classification in reducing blocking artefact in video coded images
Author(s) Chowdhury, Morshed
Ray, Sid
Pham, Thao
Conference name Conference on Computer Sciences, Software Engineering, Information Technology, E-Business and Applications (3rd: 2004 : Cairo, Egypt)
Conference location Cairo, Egypt
Conference dates 27-29 December 2004
Title of proceedings CSITeA'04 : Third International Conference on Computer Sciences, Software Engineering, Information Technology, E-Business and Applications
Editor(s) Debnath, Narayan
Publication date 2004
Start page 1
End page 4
Publisher International Society for Computers and Their Applications (ISCA)
Place of publication Cairo, Egypt
Keyword(s) video coding
blocking artefact
linear filtering
statistical inference
entropy
Summary This paper presents a performance study of four statistical test algorithms used to identify smooth image blocks in order to filter the reconstructed image of a video coded image. The four algorithms considered are the Coefficient of Variation (CV), Exponential Entropy of Pal and Pal (E), Shannon's (Logarithmic) Entropy (H), and Quadratic Entropy (Q). These statistical algorithms are employed to distinguish between smooth and textured blocks in a reconstructed image. The linear filtering is carried out on the smooth blocks of the image to reduce the blocking artefact. The rationale behind applying the filter on the smooth blocks only is that the blocking artefact is visually more prominent in the smooth region of an image rather than in the textured region.
ISBN 0974205915
9780974205915
Language eng
Field of Research 080106 Image Processing
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Persistent URL http://hdl.handle.net/10536/DRO/DU:30005387

Document type: Conference Paper
Collection: School of Information Technology
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