LESH

LESH

LESH (Local Energy based Shape Histogram) is a recently proposed image descriptor in computer vision. It can be used to get a description of the underlying shape. The LESH feature descriptor is built on local energy model of feature perception, see e.g. phase congruency for more details. It encodes the underlying shape by accumulating local energy of the underlying signal along several filter orientations, several local histograms from different parts of the image/patch are generated and concatenated together into a 128-dimensional compact spatial histogram. It is designed to be scale invariant. The LESH features can be used in applications like shape-based image retrieval, object detection, pose estimation etc.

LESH (hindu name) meaning shine, sparkle, glow, shimmer.

See also

* Feature detection (computer vision)
* Scale-invariant feature transform
* Speeded Up Robust Features
* Gradient Location Orientation Histogram

References

* [http://www.cv.tu-berlin.de/publications/ Sarfraz, S., Hellwich, O.:"Head Pose Estimation in Face Recognition across Pose Scenarios", Proceedings of VISAPP 2008, Int. conference on Computer Vision Theory and Applications, Madeira, Portugal, pp. 235-242, January 2008 (Best Student Paper Award).]


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