Filters








38 Hits in 5.1 sec

Automatic image retargeting with fisheye-view warping

Feng Liu, Michael Gleicher
2005 Proceedings of the 18th annual ACM symposium on User interface software and technology - UIST '05  
Like previous methods, fisheye-view warping uses image information, such as low-level salience and high-level object recognition to find important regions of the source image.  ...  Image retargeting is the problem of adapting images for display on devices different than originally intended.  ...  We thank Yu-Chi Lai, Tom Brunet, Ben Bederson, and Bruce Gooch for their help with this project.  ... 
doi:10.1145/1095034.1095061 dblp:conf/uist/LiuG05 fatcat:wbxcmq4g7zew5d27k5q2zmvq7u

Rapid image retargeting based on curve-edge grid representation

Tongwei Ren, Yan Liu, Gangshan Wu
2010 2010 IEEE International Conference on Image Processing  
However, current methods can't well balance the retargeting efficiency and effectiveness, which limits their applications on the mobile devices with low computing ability.  ...  Image retargeting technique attracts more and more attention for convenient image display on mobile devices.  ...  Fig. 6 shows an example of comparison with the existing typical image retargeting methods, including uniform scaling (SL), cropping (CP) [6], fisheye-view warping (FEW) [7], row/column removal (R/C) [8  ... 
doi:10.1109/icip.2010.5654031 dblp:conf/icip/RenLW10 fatcat:ocrgkpcd6jhatb6birwdzfjsnq

Multi-operator Image Retargeting Based on Automatic Quality Assessment

Zhongyan Qiu, Tongwei Ren, Yan Liu, Jia Bei, Yang Yang
2013 2013 Seventh International Conference on Image and Graphics  
In this paper, we propose a novel multi-operator image retargeting approach, which utilizes an efficient and human perception based automatic quality assessment in operator selection.  ...  Image retargeting aims to avoid visual distortion while retaining important image content in resizing. However, no single image retargeting method can handle all cases.  ...  Liu et al. proposed a fisheye-view warping method, which warps the original image with the pre-defined non-linear functions [9] .  ... 
doi:10.1109/icig.2013.92 dblp:conf/icig/QiuRLBY13 fatcat:yr6r6fyv35fhxbgtmpjf6c6iiq

Image Retargeting Using Mesh Parametrization

Yanwen Guo, Feng Liu, Jian Shi, Zhi-Hua Zhou, M. Gleicher
2009 IEEE transactions on multimedia  
Effective retargeting requires emphasizing the important content while retaining surrounding context with minimal visual distortion.  ...  Our method first constructs a mesh image representation that is consistent with the underlying image structures.  ...  However, fisheye warping may introduce noticeable distortions to background structures. Moreover, it only works well for image with single important object.  ... 
doi:10.1109/tmm.2009.2021781 fatcat:y2ha5see6beddil6sbxnzddp5y

Image Retargeting by Combining Region Warping and Occlusion [chapter]

Zhongyan Qiu, Tongwei Ren, Yan Liu, Jia Bei, Muyang Song
2013 Lecture Notes in Computer Science  
In this paper, we propose a novel image retargeting approach, which provides low visual distortion retargeting results by combining region warping and occlusion.  ...  We first represent image region with occlusion probability to avoid inaccuracy in image decomposition.  ...  Liu et al. first applied manually selected templates to represent image content, and reduced unimportant regions by fisheye-view warping [6] .  ... 
doi:10.1007/978-3-319-03731-8_19 fatcat:hovu25ezhrcqre5a435nsnlkki

Media richness, interactivity and retargeting to mobile devices: a survey

Joel Ross, Robert Simpson, Bill Tomlinson
2011 International Journal of Arts and Technology  
In this paper, we survey past methods for retargeting visual media to mobile devices, considering how such methods have been applied to text, still images and video content.  ...  These difficulties will only increase as multimedia becomes more and more interactive, such as with increasingly popular mobile games.  ...  Alternatively, Liu and Gleicher (2005) automatically create fisheye views around the salient region of an image -such a method also demonstrates how more interactive retargeting methods can potentially  ... 
doi:10.1504/ijart.2011.043443 fatcat:yp4ajdoj3fajbem2kyo6moq2fa

A survey of image retargeting techniques

Daniel Vaquero, Matthew Turk, Kari Pulli, Marius Tico, Natasha Gelfand, Andrew G. Tescher
2010 Applications of Digital Image Processing XXXIII  
Also, displaying and printing documents with embedded images frequently entail resizing of the images to comply with the overall layout.  ...  We intend this review to be useful to researchers and practitioners interested in image retargeting. Figure 1. An example of retargeting.  ...  Liu and Gleicher (2005) 12 introduce a technique that warps the image in a way similar to a fisheye lens, by employing a piecewise linear warping scheme that has more distortion in uninteresting areas  ... 
doi:10.1117/12.862419 fatcat:v3lpnzubnjb4rcwbuw6yyxcdja

Multi-operator media retargeting

Michael Rubinstein, Ariel Shamir, Shai Avidan
2009 ACM SIGGRAPH 2009 papers on - SIGGRAPH '09  
We define a new image similarity measure, which we term Bi-Directional Warping (BDW), and use it with a dynamic programming algorithm to find an optimal path in the resizing space.  ...  The original image (left) is retargeted using: simple cropping, uniform scaling, seam carving [Rubinstein et al. 2008 ], non-uniform warping [Wang et al. 2008] and our multi-operator algorithm.  ...  The Taj Mahal image is courtesy of ictopon2009.uwo.ca. The San Francisco heart image and results were borrowed from [Wang et al. 2008 ].  ... 
doi:10.1145/1576246.1531329 fatcat:eavk4ziedzgmtdpzlh4g7vphy4

Multi-operator media retargeting

Michael Rubinstein, Ariel Shamir, Shai Avidan
2009 ACM Transactions on Graphics  
We define a new image similarity measure, which we term Bi-Directional Warping (BDW), and use it with a dynamic programming algorithm to find an optimal path in the resizing space.  ...  The original image (left) is retargeted using: simple cropping, uniform scaling, seam carving [Rubinstein et al. 2008 ], non-uniform warping [Wang et al. 2008] and our multi-operator algorithm.  ...  The Taj Mahal image is courtesy of ictopon2009.uwo.ca. The San Francisco heart image and results were borrowed from [Wang et al. 2008 ].  ... 
doi:10.1145/1531326.1531329 fatcat:5vxuv2igtjeyzhums2upm6i5ga

Image Retargeting through Constrained Growth of Important Rectangular Partitions [chapter]

Rajarshi Pal, Jayanta Mukhopadhyay, Pabitra Mitra
2011 Lecture Notes in Computer Science  
A novel rectangular partitioning based retargeting scheme is proposed in this paper to address this issue.  ...  The challenge of displaying an image in a much smaller target area is to maintain recognizability of its contents.  ...  Image cropping [1, 2, 3] and fisheye-view warping [4] are effective for images with single important object.  ... 
doi:10.1007/978-3-642-21786-9_19 fatcat:dsiocf7to5cqdjznjjgvmnvzpe

Constrained sampling for image retargeting

Tongwei Ren, Yanwen Guo, Gangshan Wu, Fuyan Zhang
2008 2008 IEEE International Conference on Multimedia and Expo  
In this paper, we present a new approach for retargeting large images to mobile devices with small screens.  ...  By taking these aspects as constraints, image retargeting is formulated as a constrained sampling task. Each pixel in image is first represented with a vector encoding the constraints.  ...  This can be fulfilled by a fisheye like non-linear warping function [4] , or using image segmentation and re-composition [5] .  ... 
doi:10.1109/icme.2008.4607705 dblp:conf/icmcs/RenGWZ08 fatcat:eqmn5ocyqvdtznhgqxhzjdq3m4

A Novel Semantics and Feature Preserving Perspective for Content Aware Image Retargeting [article]

Sukrit Shankar, Pier Luigi Dragotti
2015 arXiv   pre-print
Thus, there occurs a need for resizing the images in a content aware manner which can automatically discard irrelevant information from the image and present the salient features with more magnitude.  ...  There have been proposed some image retargeting techniques keeping in mind the content awareness of the input image.  ...  Researchers in [52] have proposed a technique that warps the image in a similar way as a fisheye lens, by employing a piecewise linear warping, with the initial importance map being derived from a contrast  ... 
arXiv:1506.04806v3 fatcat:obash7smangtlopnt3jmivpu2m

WoodScape: A Multi-Task, Multi-Camera Fisheye Dataset for Autonomous Driving

Senthil Yogamani, Christian Witt, Hazem Rashed, Sanjaya Nayak, Saquib Mansoor, Padraig Varley, Xavier Perrotton, Derek Odea, Patrick Perez, Ciaran Hughes, Jonathan Horgan, Ganesh Sistu (+5 others)
2019 2019 IEEE/CVF International Conference on Computer Vision (ICCV)  
With Wood-Scape, we would like to encourage the community to adapt computer vision models for fisheye camera instead of using naïve rectification.  ...  Abstract Fisheye cameras are commonly employed for obtaining a large field of view in surveillance, augmented reality and in particular automotive applications.  ...  Due to absence of fisheye datasets, they make use of artificially warped images of Cityscapes for training and testing was performed on fisheye images.  ... 
doi:10.1109/iccv.2019.00940 dblp:conf/iccv/YogamaniWRNMVPO19 fatcat:to3rxn64p5ehzm5v53o7zjnngu

WoodScape: A multi-task, multi-camera fisheye dataset for autonomous driving [article]

Senthil Yogamani, Ciaran Hughes, Jonathan Horgan, Ganesh Sistu, Padraig Varley, Derek O'Dea, Michal Uricar, Stefan Milz, Martin Simon, Karl Amende, Christian Witt, Hazem Rashed (+5 others)
2021 arXiv   pre-print
With WoodScape, we would like to encourage the community to adapt computer vision models for fisheye camera instead of using naive rectification.  ...  Fisheye cameras are commonly employed for obtaining a large field of view in surveillance, augmented reality and in particular automotive applications.  ...  Due to absence of fisheye datasets, they make use of artificially warped images of Cityscapes for training and testing was performed on fisheye images.  ... 
arXiv:1905.01489v3 fatcat:oanavkln4bb4hcjxtrkmwbclkm

STRUCTURE PRESERVATION IN CONTENT AWARE IMAGE RETARGETING USING MULTI OPERATOR

Ankit Garg, Ashish Negi, Prakhar Jindal
2020 IET Image Processing  
This study proposes a new multioperator scheme which has improved seam carving, through the proposed seam diversion based image retargeting algorithm, integrated with the cropping and warping operator.  ...  By integrating cropping and warping into the proposed algorithm, it preserves the salient features of the retargeted images.  ...  Liu and Gleicher [29] proposed a non-photo-realistic fisheye-view warping method which suggested that without using the cropping method, an image can be reduced to smaller sizes.  ... 
doi:10.1049/iet-ipr.2019.1032 fatcat:ng4o75acurhivly47ywjwjvpiq
« Previous Showing results 1 — 15 out of 38 results