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» Noise reduction in high dynamic range imaging
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ICCV
2003
IEEE
15 years 20 days ago
Adaptive Dynamic Range Imaging: Optical Control of Pixel Exposures Over Space and Time
This paper presents a new approach to imaging that significantly enhances the dynamic range of a camera. The key idea is to adapt the exposure of each pixel on the image detector,...
Shree K. Nayar, Vlad Branzoi
ISCAS
1999
IEEE
87views Hardware» more  ISCAS 1999»
14 years 3 months ago
A novel high gain, high bandwidth CMOS differential front-end for wireless optical systems
This paper describes a high performance CMOS differential input front-end, designed for optical wireless communications. The front-end achieves a 50 MHz bandwidth and a 400 K tran...
E. de Vasconcelos, J. L. Cura, Rui L. Aguiar, Dini...
ICIP
1999
IEEE
15 years 10 days ago
Dynamic Range Improvement Through Multiple Exposures
This paper presents an approach for improving the effective dynamic range of cameras by using multiple photographs of the same scene taken with different exposure times. Using thi...
Mark A. Robertson, Sean Borman, Robert L. Stevenso...
ICIP
2005
IEEE
15 years 12 days ago
Homogeneity-based directional sigma filtering of video noise
This paper proposes a real-time method for the reduction of white Gaussian video noise. The method achieves a maximum gain of 4.8 dB and is capable of preserving image content. It...
Mohammed Ghazal, Aishy Amer, Ali Ghrayeb
TMI
2008
141views more  TMI 2008»
13 years 10 months ago
Fast Noise Reduction in Computed Tomography for Improved 3-D Visualization
Computed tomography (CT) has a trend towards higher resolution and higher noise. This development has increased the interest in anisotropic smoothing techniques for CT, which aim t...
Michiel Schaap, Arnold M. R. Schilham, Karel J. Zu...