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» Modelling perception using image processing algorithms
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SIGIR
2004
ACM
16 years 9 days ago
A search engine for imaged documents in PDF files
Large quantities of documents in the Internet and digital libraries are simply scanned and archived in image format, many of which are packed in PDF files. The word search tool pr...
Yue Lu, Li Zhang, Chew Lim Tan
RT
1998
Springer
15 years 11 months ago
Fidelity of Graphics Reconstructions: A Psychophysical Investigation
In this paper we develop a technique for measuring the perceptual equivalence of a graphical scene to a real scene. Ability to compare images is valuable in computer graphics for a...
Ann McNamara, Alan Chalmers, Tom Troscianko, Erik ...
SIGGRAPH
1991
ACM
15 years 10 months ago
Spectrally optimal sampling for distribution ray tracing
Nonuniform sampling of images is a useful technique in computer graphics, because a properly designed pattern of samples can make aliasing take the form of high-frequency random n...
Don P. Mitchell
PVM
1997
Springer
15 years 11 months ago
Message Handling in Parallel Radiance
Photo-realistic computergraphics is an area of research which tries to develop algorithms and methods to render images of arti cial models or worlds as realistically as possible, b...
Erik Reinhard, Alan Chalmers
MIR
2010
ACM
229views Multimedia» more  MIR 2010»
16 years 1 months ago
Wavelet, active basis, and shape script: a tour in the sparse land
Sparse coding is a key principle that underlies wavelet representation of natural images. In this paper, we explain that the effort of seeking a common wavelet sparse coding of i...
Zhangzhang Si, Ying Nian Wu