DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Park, Hyun-Wook | - |
dc.contributor.advisor | 박현욱 | - |
dc.contributor.author | Park, Young-Seo | - |
dc.contributor.author | 박영서 | - |
dc.date.accessioned | 2011-12-14 | - |
dc.date.available | 2011-12-14 | - |
dc.date.issued | 2005 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=245055&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/35289 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 전기및전자공학전공, 2005.2, [ viii, 100 p. ] | - |
dc.description.abstract | Image resizing is to change an image size by upsampling or downsampling of a digital image. Most still images and video frames are given in a compressed domain on digital media. Image resizing of a compressed image can be performed in a spatial domain via decompression and recompression. In general, resizing of a compressed image in a compressed domain is much faster than that in a spatial domain. In this paper, we propose a novel approach to resize images with L/M resizing ratio in the discrete cosine transform (DCT) domain, which exploits the multiplication-convolution property of DCT (the multiplication in spatial domain corresponds to the symmetric convolution in DCT domain). When an image is given in terms of its block-DCT coefficients, its resized image is also obtained in block-DCT coefficients. The proposed approach is computationally fast and produces visually fine images with high PSNR. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Symmetric convolution | - |
dc.subject | Image resizing | - |
dc.subject | Downsampling | - |
dc.subject | Block DCT | - |
dc.subject | Upsampling | - |
dc.subject | 업샘플링 | - |
dc.subject | 대칭중첩합 | - |
dc.subject | 영상크기변환 | - |
dc.subject | 다운샘플링 | - |
dc.subject | 블록DCT | - |
dc.title | L/M-fold Image Resizing using Symmetric convolution | - |
dc.title.alternative | 이산 여현 영역에서 대칭 콘볼루션을 이용한 L/M배로 영상 크기 변환 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 245055/325007 | - |
dc.description.department | 한국과학기술원 : 전기및전자공학전공, | - |
dc.identifier.uid | 000985136 | - |
dc.contributor.localauthor | Park, Hyun-Wook | - |
dc.contributor.localauthor | 박현욱 | - |
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