NDLI: Large Image Fast Compositing Based on Uniform Sample

Content Provider	IEEE Xplore Digital Library
Author	Wu Jian Yu Tianxiu Zhoa Lei
Copyright Year	2013
Description	Author affiliation: Dept. of Comput. Sci. & Technol., Zhejiang Univ., Hangzhou, China (Zhoa Lei) \|\| Digital Center, Dunhuang Acad., Dunhuang, China (Wu Jian; Yu Tianxiu)
Abstract	We present a novel approach called Uniform Sample Compositing (USC) to improve the efficiency of gradient-domain compositing of large image, which could be implemented in significantly reduced time and memory. Firstly, our algorithm divides an original source image into many quadrilateral patches, and discards inner pixels and reserves the border pixels of patches) to constitute two low resolution images (Uniform-Sample-images) on which the image compositing operator is implemented. Finally according to the solution of Uniform-Sample-images the result image is evaluated by concurrently computing inner pixels of every quadrilateral patch on GPU. The evaluation of these patches is independent to each other so that our algorithm has better parallelism. The reduction of time and memory is achieved by solving Poisson equation on low resolution and inner interpolation on quadrilateral patches. The major merits of our approach are demonstrated by performing large image composite (whose size is about multi-Gigabyte) in significantly reduced time and memory while achieving visually identical results.
Starting Page	221
Ending Page	224
File Size	187954
Page Count	4
File Format	PDF
ISBN	9781479928828
e-ISBN	9781479928835
DOI	10.1109/WCSE.2013.40
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-03
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Graphics Linear systems Interpolation Image resolution Poisson equations Uniform Sample Image Compositing Large Image Graphics processing units Streaming media Gradient Domain GPU
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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