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웨이블릿 변환을 이용한 순차적 영상 부호화

Progressive Image Coding using Wavelet Transform

  • 김용연 (인천대학교 정보통신과)
  • 투고 : 2013.11.20
  • 심사 : 2014.01.13
  • 발행 : 2014.01.31

초록

본 논문에서는 웨이블릿 변환 특성을 이용한 대역별 계층적 비트 플레인을 구성, 비트 플레인별로 순차적 전송을 수행하는 새로운 영상 부호화 방법을 제안한다. 제안한 방식은 Antonini의 웨이블릿 기저함수를 사용하여 대역 분할된 영상을 특정대역과 다양한 해상도를 갖는 대역들로 나누어 분리함으로써 다해상도를 지원한다. 대역별 특성을 고려한 부호화의 전송 시 대역별 영상의 우선순위를 고려할 수 있고, 영상의 고속 검색에도 응용될 수 있다.

In this paper we propose new image coding using wavelet transform. The new method constructs hierarchical bit plane and progressively transports each bit plane. The Proposed algorithm not only supports multi-resolution, dividing original image into special band and various resolution using Antonini's wavelet basis function but also reduces blocking effects that come into JPEG. In encoding time this algorithm considers each band characters and priority of transport order, and applies to fast search of image.

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참고문헌

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