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DPHOTO
2009
131views Hardware» more  DPHOTO 2009»
13 years 4 months ago
Interaction of image noise, spatial resolution, and low contrast fine detail preservation in digital image processing
We present a method to improve the validity of noise and resolution measurements on digital cameras. If non-linear adaptive noise reduction is part of the signal processing in the...
Uwe Artmann, Dietmar Wueller
GIS
2004
ACM
14 years 7 months ago
A novel improvement to the R*-tree spatial index using gain/loss metrics
The R*-tree is a state-of-the-art spatial index structure. It has already found its way into commercial systems. The most important improvement of the R*-tree over the original R-...
Donghui Zhang, Tian Xia
ICCS
2004
Springer
13 years 11 months ago
Bayer Pattern Demosaicking Using Local-Correlation Approach
A new Bayer pattern demosaicking scheme for single-sensor digital cameras is introduced. The raw output from a sensor, mostly a charge coupled device (CCD) or a complementary metal...
Rastislav Lukac, Konstantinos N. Plataniotis, Anas...
ICMCS
2006
IEEE
143views Multimedia» more  ICMCS 2006»
14 years 13 days ago
Perceptual Quality Metric for H.264 Low Bit Rate Videos
This paper proposed an objective video quality metric designed for automatically assessing the perceived quality of digitally compressed multimedia videos using H.264 video compre...
Ee Ping Ong, Weisi Lin, Zhongkang Lu, Susu Yao, Me...
CGF
2006
94views more  CGF 2006»
13 years 6 months ago
A Weighted Error Metric and Optimization Method for Antialiasing Patterns
Displaying a synthetic image on a computer display requires determining the colors of individual pixels. To avoid aliasing, multiple samples of the image can be taken per pixel, a...
Samuli Laine, Timo Aila