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패치 영상의 효율적 압축을 위한 전처리 방법

Title
패치 영상의 효율적 압축을 위한 전처리 방법
Other Titles
Preprocessing Method for Efficient Compression of Patch-based Image
Author
이선영
Keywords
patch-based image; 3D mesh coding; texture image compression
Issue Date
2008-01
Publisher
한국방송∙미디어공학회
Citation
방송공학회 논문지, v. 13, NO. 1, Page. 109-118
Abstract
텍스처 영상 압축은 JPEG과 같은 영상 압축 표준을 사용한다. 일반 텍스처 영상에는JPEG으로도 좋은 압축 성능을 내지만 패치 텍스처 영상은 이러한 영상 압축 기술로 압축했을 때 좋은 압축 성능을 보이지 못하였다. 이를 보완하고 압축 성능을 높이기 위해 기존의 패치 텍스처 영상에 주변 화소 간에 색차를 줄이기 위한 전처리 기술을 소개하고, 제안된 기술과 JPEG 압축을 순서대로 적용하였을 때 압축 성능이 23%에서 45%까지 향상됨을 보이고자 한다.;In mapping a texture image into a 3D mesh model for photo-realistic graphic applications, the compression of texture image is as important as geometry of 3D mesh. Typically, the size of the (compressed) texture image of 3D model is comparable to that of the (compressed) 3D mesh geometry. Most 3D model compression techniques are to compress the 3D mesh geometry, rather than to compress the texture image. Well-known image compression standards (i.e., JPEG) have been extensively used for texture image compression. However, such techniques are not so efficient when it comes to compress an image with texture patches, since the patches are little correlated. In this paper, we proposed a preprocessing method to substantially improve the compression efficiency of texture compression. From the experimental results, the proposed method was shown to be efficient in compression with a bit-saving from 23% to 45%.
URI
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00954167https://repository.hanyang.ac.kr/handle/20.500.11754/181525
ISSN
1226-7953;2287-9137
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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