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A Deinterlacing Scheme Based on Scene Change Detection

  

  1. 1. College of Computer and Information, Hohai University, Nanjing 211100, China; 
    2. Nanjing Research Institute of Information Technology, Nanjing 210036, China; 
    3. The 28th Research Institute of China Electronics Technology Group Corporation, Nanjing 210007, China
  • Received:2016-12-11 Online:2017-08-31 Published:2017-09-01

Abstract:

This paper proposes a motioncompensated deinterlacing scheme based on the results of scene change detection. The design idea consists of five parts: scene change
detection, motion estimation, motion state analysis, motion consistency analysis and motion compensation interpolation. Firstly, absolute pixel differences between adjacent
pictures are compared to determine whether scene change exists. If scene change exists, only backward motion vector candidates are considered; otherwise, bidirectional
prediction is conducted. Secondly, motion analysis is utilized to determine whether the motion estimation should be performed again with a smaller block size. Finally, motion
compensated interpolation is performed. Experimental results show that the proposed scheme achieves better subjective and objective results compared with conventional
deinterlacing approaches.

Key words: scene change, motion compensation, deinterlacing, motion estimation, bidirectional prediction

CLC Number: