Deblocking Algorithm for Block-Based Coded Images Using Singularity Detection from Multiscale Edges (Image)

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概要

• 論文の詳細を見る

• The current paper presents an effective deblocking algorithm for block-based coded images using singularity detection in a wavelet transform. Blocking artifacts appear periodically at block boundaries in block-based coded images. The local maxima of a wavelet transform modulus detect all singularities, including blocking artifacts, from multiscale edges. Accordingly, the current study discriminates between a blocking artifact and an edge by estimating the Lipschitz regularity of the local maxima and removing the wavelet transform modulus of a blocking artifact that has a negative Lipschitz regularity exponent. Experimental results showed that the performance of the proposed algorithm was objectively and subjectively superior.

• 社団法人電子情報通信学会の論文
• 2003-08-01

著者

• Lee Jong-won

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Kim B‐j

  School Of Electrical Engineering And Computer Science Kyungpook National University

• LEE Suk-Hwan

  School of Electrical Engineering and Computer Science, Kyungpook National University

• KWON Seong-Geun

  R&D Group 3, Mobile Communication Division, Information & Communication Business, Samsung Electronic

• KWON Kee-Koo

  School of Electrical Engineering and Computer Science, Kyungpook National University

• KIM Byung-Ju

  School of Electrical Engineering and Computer Science, Kyungpook National University

• LEE Kuhn-Il

  School of Electrical Engineering and Computer Science, Kyungpook National University

• KWON Seong-Geun

  School of Electrical Engineering and Computer Science, Kyungpook National University

• Lee K‐i

  Kyungpook National Univ. Daegu Kor

• Lee Kuhn-il

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Lee S‐h

  Inha Univ. Inchon Kor

• Kwon Ki‐ryong

  Pukyong National Univ. Kor

• Kwon Kee-koo

  Division Of Digital And Information Engineering Pusan University Of Foreign Studies

• Kwon Seong-geun

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Kim Byung-ju

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Kwon Kee-koo

  School Of Electrical Engineering And Computer Science Kyungpook National University

関連論文

• Deblocking Algorithm for Block-Based Coded Images Using Singularity Detection from Multiscale Edges (Image)
• Spatial Error Concealment Algorithm Using Novel Block Classification with a Variable Operating Region(Special Section on Papers Selected from ITC-CSCC 2002)
• Adaptive Postprocessing Algorithm in Block-Coded Images Using Block Classification and MLP
• Postprocessing Algorithm in Block-Coded Images Using the Adaptive Filters along the Pattern of Neighborhood Blocks(Regular Section)
• Blocking Artifact Reduction in Block-Coded Image Using Block Classification and Feedforward Neural Network(Digital Signal Processing)
• Velocity Estimation for Output Regulation of Nonlinear Systems
• Complex EGI Based 3D-Mesh Watermarking(Papers Selected from ITC-CSCC 2004)
• Motion Estimation with Optical Flow-Based Adaptive Search Region(Special Section on Papers Selected from ITC-CSCC 2000)
• Adaptive Blocking Artifacts Reduction Using Adaptive Filter and Dithering(Special Section on Papers Selected from ITC-CSCC 2001)
• Multispectral Image Data Compression Using Classified Prediction and KLT in Wavelet Transform Domain(Special Section on Papers Selected from ITC-CSCC 2002)
• A Unified Estimation for Scheduled Controllers in Nonlinear Systems

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