chad voegele - university of texas at austin
TRANSCRIPT
Chad Voegele
Selective Search for Object Recognition
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
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Color Similarity
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Color Similarity
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Color Similarity
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Texture Similarity
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Texture Similarity
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Texture Similarity
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Texture Similarity
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Size Similarity
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Size Similarity
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Size Similarity
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Size Similarity
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Fill Similarity
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Fill Similarity
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Fill Similarity
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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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Success Case
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Success Case
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Failure Cases
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Failure Cases
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Failure Cases
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Failure Cases
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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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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
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
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
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
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
Appendix
Initial Segmentations
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Initial Segmentations
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Initial Segmentations
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Initial Segmentations
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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