Journal of the Korean Institute of Intelligent Systems (한국지능시스템학회논문지)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Blind Measurement of Blocking Artifacts in Block-based DCT Image Coder

블록기반 DCT 영상 부호화기의 블록화 왜곡 블라인드 측정

  • 정태윤 (강릉대학교 정보전자공학부) ;
  • 박성욱 (삼성전자 디지털 미디어 연구소)
  • Published : 2004.02.01
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Abstract

This paper proposes a new blind measurement model of blocking artifacts. This model plays an important role in the assessment and enhancement of image quality caused by block-based DCT coding system. The proposed model can measure blocking artifacts without reference to original images and consider the HVS based visual model such as frequency sensitivity and channel masking effect to detect and measure overall blocking artifacts quantitatively. The experimental results show that the proposed model is highly effective in measuring blocking artifacts.

본 논문은 블록기반 DCT 부호화 영상의 화전 평가 몇 개선에 필수적인 블록화 외곡 정도를 측정하는 새로운 블라인드 측정 모델을 제안한다. 제안된 모델은 원영상을 필요로 하지 않으며 또한 인간시각 특성의 다채널 구조에 따른 주파수 민감도와 마스킹 현상을 반영하여 영상 부호화시 발생하는 블록화 외곡량을 정량적으로 검출, 측정하였으며 실험을 통해 제안된 모델의 타당성을 검증하였다.

Keywords

References

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