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Visual pattern encoding on the Poincaré sphere

Published on Oct 29, 20142439 Views

Aleksandra Pizurica

This talk presents a convenient graphical tool for encoding visual patterns (such as image patches and image atoms) as point constellations in a space spanned by perceptual features and with a clear

SAHD 2014 - London

Related categories

Computational Learning TheoryDeep LearningDigital Signal ProcessingInformation TheoryStatistics

Chapter list

Pattern encoding on the Poincaré Sphere00:00
A graphical tool for pattern encoding00:19
Inspiration: Encoding Polarization States00:23
Applications in communications01:03
Visual patterns on the Poincaré sphere? - 102:26
Visual patterns on the Poincaré sphere? - 203:11
Visual patterns on the Poincaré sphere? - 303:40
Some parallels with polarization encoding04:18
Two examples with different formulations of the elevation angle05:02
Scale cylinder06:20
Scale hypersphere 07:02
Unfolding and packing together the scales07:35
Constructing a toy example08:08
Dominant direction estimation: idea08:47
Dominant direction estimation: method - 110:13
Dominant direction estimation: method - 210:48
Dominant direction estimation: examples - 311:04
Dominant direction estimation: examples - 412:09
Dominant direction estimation: examples - 512:14
Dominant direction estimation: examples - 612:17
Encoding the level of grey12:37
Encoding patch regularity - 113:00
Encoding patch regularity - 214:06
Patch encoding example15:07
Some possible applications16:21
Applications: Patch clustering16:47
Applications: Dictionary analysis17:38
Dictionary analysis: Zoom In - 118:22
Dictionary analysis: Zoom In - 218:41
Applications: Encoding image atoms - 118:56
Applications: Encoding image atoms - 219:13
Applications: Encoding image atoms - 319:18
Generating dictionaries of image atoms - 119:29
Generating dictionaries of image atoms - 220:15
Generating dictionaries of image atoms - 120:22
Generating dictionaries of image atoms - 220:26
Generating dictionaries of image atoms - 320:29
Generating dictionaries of image atoms - 420:39
Generating dictionaries of image atoms - 520:41
Generating dictionaries of image atoms - 620:50
Generating dictionaries of image atoms - 720:54
Generating dictionaries of image atoms - 820:59
Generating dictionaries of image atoms - 921:16
Image reconstruction examples22:12
Reconstruction performance22:33
Sphere packings24:23
Example dictionary from a spherical code24:52
Reconstruction performance25:07
Summary25:46
References26:10