기존의 양안식 스테레오 비디오는 장면 내에 매우 큰 변이를 가지는 물체가 존재할 경우에 시각피로를 유발하여 오랜 시간 동안 시청하기가 어렵게 된다. 이러한 시각피로를 개선하기 위한 하나의 방법으로서 본 논문에서는 변이 기반 비대칭 필터링 기법을 제안한다. , 필터링 수준을 스테레오 영상 사이에서 구해진 변이 정보에 의해 조절한다 . 제안한 기법의 시각 피로도 및 영상의 선명도에 미치는 영향을 주관적 평가에 의해 조사한 결과 , 적절한 조건 하에 제안한 기법을 주시되지 않은 시차가 큰 영역에 적용할 경우 화질은 원영상의 화질을 유지하면서 시각 피로가 개선되는 효과를 얻을 수 있었다 .
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