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» Algorithms for Querying by Spatial Structure
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ICIP
2010
IEEE
15 years 2 months ago
Gradient field descriptor for sketch based retrieval and localization
We present an image retrieval system driven by free-hand sketched queries depicting shape. We introduce Gradient Field HoG (GF-HOG) as a depiction invariant image descriptor, enca...
Rui Hu, Mark Barnard, John P. Collomosse
W2GIS
2004
Springer
15 years 9 months ago
Expansion-Based Algorithms for Finding Single Pair Shortest Path on Surface
Abstract. Finding single pair shortest paths on surface is a fundamental problem in various domains, like Geographic Information Systems (GIS) 3D applications, robotic path plannin...
Ke Deng, Xiaofang Zhou
ADL
1997
Springer
171views Digital Library» more  ADL 1997»
15 years 8 months ago
Wavelet-Based Image Indexing Techniques with Partial Sketch Retrieval Capability
This paper describes WBIIS Wavelet-Based Image Indexing and Searching, a new image indexing and retrieval algorithm with partial sketch image searching capability for large imag...
James Ze Wang, Gio Wiederhold, Oscar Firschein, Sh...
ICASSP
2008
IEEE
15 years 10 months ago
Kerdock codes for limited feedback MIMO systems
A codebook based limited feedback strategy is a practical way to obtain partial channel state information at the transmitter in a precoded multiple-input multiple-output (MIMO) wi...
Takao Inoue, Robert W. Heath Jr.
ICASSP
2011
IEEE
14 years 7 months ago
Gain and phase autocalibration for uniform rectangular arrays
—To maintain the performance of direction-of-arrival (DOA) estimation, an accurate model of the array response is required. In a time-varying sensor environment, this is only pos...
Philipp Heidenreich, Abdelhak M. Zoubir