chad voegele - university of texas at austin
TRANSCRIPT
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Chad Voegele
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Selective Search for Object Recognition
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Outline
1. Individual contribution of region similarity measures2. Importance of good base segmentation3. Box overlap correspondence to recognition
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Outline
1. Individual contribution of region similarity measures2. Importance of good base segmentation3. Box overlap correspondence to recognition
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Similarity Measures
Color
Texture
Size
Fill
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Color Similarity
6
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Color Similarity
7
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Color Similarity
8
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Color Similarity
9
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Texture Similarity
10
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Texture Similarity
11
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Texture Similarity
12
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Texture Similarity
13
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Size Similarity
14
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Size Similarity
15
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Size Similarity
16
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Size Similarity
17
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Fill Similarity
18
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Fill Similarity
19
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Fill Similarity
20
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Outline
1. Individual contribution of region similarity measures2. Importance of good base segmentation3. Box overlap correspondence to recognition
21
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Success Case
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Success Case
23
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Failure Cases
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Failure Cases
25
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Failure Cases
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Failure Cases
27
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Outline
1. Individual contribution of region similarity measures2. Importance of good base segmentation3. Box overlap correspondence to recognition
28
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Box Overlaps
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Box Overlaps
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1. ostrich2. Arabian camel3. black stork4. llama
1. zebra2. tiger3. triceratops4. tiger cat
1. chime, gong2. plate rack3. snake fence4. organ
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Box Overlaps
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Score: 0.851. ostrich2. black stork3. vulture4. Arabian camel
Score: 0.951. chime, gong2. snake fence3. organ4. thatched roof
Score: 0.891. zebra2. tiger3. trcieratops4. tiger cat
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Box Overlaps
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Score: 0.501. zebra2. tiger3. gazelle4. impala
Score: 0.501. ostrich2. llama3. Arabian camel4. vulture
Score: 0.501. snake fence2. plate rack3. bannister4. picket fence
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Box Overlaps
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Score: 0.511. zebra2. fire screen3. gazelle4. patas (monkey)
Score: 0.501. borzoi (dog)2. timber wolf3. red wolf4. badger
Score: 0.501. plate rack2. chime, gong3. shoji (Japanese door)4. window shade
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Issues
● Author released half p-code, half m-code.● Optimal segmentation coloring problem.● AlexNet output very sensitive to image patch size.
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Sources
Code- http://koen.me/research/selectivesearch/ - http://caffe.berkeleyvision.org/
Pictures- PASCAL Visual Object Class Challenge 2007: http://host.robots.ox.ac.uk/pascal/VOC/voc2007/index.html- http://artisanhardware.com/wp-content/uploads/2015/09/47c6ebf4-7a3e-4345-acb5-6a23c9b0b405.jpg - https://upload.wikimedia.org/wikipedia/en/9/93/Pacersoriginallogo.gif - http://animaliaz-life.com/data_images/koala/koala4.jpg - http://www.synlawngolf.com/wp-content/gallery/golf-installations/golf-027.jpg - https://indierevolver.files.wordpress.com/2015/07/chewbacca-han-solo-e1436634523782.jpg - http://cdn0.sbnation.com/imported_assets/196372/200803231600576549171-p2.jpeg - http://www.planetizen.com/files/images/ChicagoEl.jpg- https://www.flickr.com/photos/128888346@N02/24927420741 - https://upload.wikimedia.org/wikipedia/commons/5/52/Madrid_Zoo.jpg 35
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Appendix
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Initial Segmentations
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Initial Segmentations
38
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Initial Segmentations
39
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Initial Segmentations
40
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Box Overlap
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1. oxcart2. ox3. horse cart4. zebra5. llama6. bighorn sheep7. ram8. water buffalo9. warthog
10. dogsled