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» Quantile and histogram estimation
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ICASSP
2010
IEEE
13 years 8 months ago
Forensic estimation and reconstruction of a contrast enhancement mapping
Due to the ease with which convincing digital image forgeries can be created, a need has arisen for digital forensic techniques capable of detecting image manipulation. Once image...
Matthew C. Stamm, K. J. Ray Liu
PODS
2002
ACM
138views Database» more  PODS 2002»
14 years 8 months ago
Fast Algorithms For Hierarchical Range Histogram Construction
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
Sudipto Guha, Nick Koudas, Divesh Srivastava
BMVC
2010
13 years 5 months ago
Histogram of Oriented Cameras - A New Descriptor for Visual SLAM in Dynamic Environments
Simultaneous localization and mapping (SLAM) is a basic prerequisite in autonomous mobile robotics. Most existing visual SLAM approaches either assume a static environment, or sim...
Katrin Pirker
TIP
2008
125views more  TIP 2008»
13 years 7 months ago
Segmentation by Fusion of Histogram-Based K-Means Clusters in Different Color Spaces
Abstract--This paper presents a new, simple, and efficient segmentation approach, based on a fusion procedure which aims at combining several segmentation maps associated to simple...
Max Mignotte
VLDB
1997
ACM
112views Database» more  VLDB 1997»
14 years 12 hour ago
Selectivity Estimation Without the Attribute Value Independence Assumption
The result size of a query that involves multiple attributes from the same relation depends on these attributes’ joint data distribution,i.e., the frequencies of all combination...
Viswanath Poosala, Yannis E. Ioannidis