Content-based image compression for arbitrary-resolution display devices

The existing image coding methods cannot support content-based spatial scalability with high compression. In mobile multimedia communications, image retargeting is generally required at the user end. However, content-based image retargeting (e.g., seam carving) is with high computational complexity...

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Main Authors: Deng, Chenwei, Lin, Weisi, Cai, Jianfei
Other Authors: School of Computer Engineering
Format: Article
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/96251
http://hdl.handle.net/10220/11402
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-962512020-05-28T07:17:25Z Content-based image compression for arbitrary-resolution display devices Deng, Chenwei Lin, Weisi Cai, Jianfei School of Computer Engineering DRNTU::Engineering::Computer science and engineering The existing image coding methods cannot support content-based spatial scalability with high compression. In mobile multimedia communications, image retargeting is generally required at the user end. However, content-based image retargeting (e.g., seam carving) is with high computational complexity and is not suitable for mobile devices with limited computing power. The work presented in this paper addresses the increasing demand of visual signal delivery to terminals with arbitrary resolutions, without heavy computational burden to the receiving end. In this paper, the principle of seam carving is incorporated into a wavelet codec (i.e., SPIHT ). For each input image, block-based seam energy map is generated in the pixel domain. In the meantime, multilevel discrete wavelet transform (DWT) is performed. Different from the conventional wavelet-based coding schemes, DWT coefficients here are grouped and encoded according to the resultant seam energy map. The bitstream is then transmitted in energy descending order. At the decoder side, the end user has the ultimate choice for the spatial scalability without the need to examine the visual content; an image with arbitrary aspect ratio can be reconstructed in a content-aware manner based upon the side information of the seam energy map. Experimental results show that, for the end users, the received images with an arbitrary resolution preserve important content while achieving high coding efficiency for transmission. 2013-07-15T04:30:32Z 2019-12-06T19:27:52Z 2013-07-15T04:30:32Z 2019-12-06T19:27:52Z 2012 2012 Journal Article Deng, C., Lin, W., & Cai, J. (2012). Content-Based Image Compression for Arbitrary-Resolution Display Devices. IEEE Transactions on Multimedia, 14(4), 1127-1139. 1520-9210 https://hdl.handle.net/10356/96251 http://hdl.handle.net/10220/11402 10.1109/TMM.2012.2191270 en IEEE transactions on multimedia © 2012 IEEE.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Computer science and engineering
spellingShingle DRNTU::Engineering::Computer science and engineering
Deng, Chenwei
Lin, Weisi
Cai, Jianfei
Content-based image compression for arbitrary-resolution display devices
description The existing image coding methods cannot support content-based spatial scalability with high compression. In mobile multimedia communications, image retargeting is generally required at the user end. However, content-based image retargeting (e.g., seam carving) is with high computational complexity and is not suitable for mobile devices with limited computing power. The work presented in this paper addresses the increasing demand of visual signal delivery to terminals with arbitrary resolutions, without heavy computational burden to the receiving end. In this paper, the principle of seam carving is incorporated into a wavelet codec (i.e., SPIHT ). For each input image, block-based seam energy map is generated in the pixel domain. In the meantime, multilevel discrete wavelet transform (DWT) is performed. Different from the conventional wavelet-based coding schemes, DWT coefficients here are grouped and encoded according to the resultant seam energy map. The bitstream is then transmitted in energy descending order. At the decoder side, the end user has the ultimate choice for the spatial scalability without the need to examine the visual content; an image with arbitrary aspect ratio can be reconstructed in a content-aware manner based upon the side information of the seam energy map. Experimental results show that, for the end users, the received images with an arbitrary resolution preserve important content while achieving high coding efficiency for transmission.
author2 School of Computer Engineering
author_facet School of Computer Engineering
Deng, Chenwei
Lin, Weisi
Cai, Jianfei
format Article
author Deng, Chenwei
Lin, Weisi
Cai, Jianfei
author_sort Deng, Chenwei
title Content-based image compression for arbitrary-resolution display devices
title_short Content-based image compression for arbitrary-resolution display devices
title_full Content-based image compression for arbitrary-resolution display devices
title_fullStr Content-based image compression for arbitrary-resolution display devices
title_full_unstemmed Content-based image compression for arbitrary-resolution display devices
title_sort content-based image compression for arbitrary-resolution display devices
publishDate 2013
url https://hdl.handle.net/10356/96251
http://hdl.handle.net/10220/11402
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