Visual Search
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Look at basics of image retrieval, some existing solutions and technology and challenges.
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Visual Search
- 1. Visual Search aka Content-based Image Retrieval Amit Prabhudesai, SISO
- 3. Why do we need visual search? How do I find what I’m looking for?!
- 5. Searching Images is like …
- 6. What is visual search? Text query, textual results Text query, visual results Visual query, visual results … a.k.a. Visual Search
- 7. A Picture speaks better than … Visual search – why type when you can see it : http://bit.ly/3WMh6D
- 8. Visual search – specifying queries
- 9. Visual search – specifying queries
- 10. Visual search – specifying queries Snap a picture of something you like & upload it!
- 16. Applications of Visual Search … for the art collector & museum curator
- 17. Product catalogs … … searching product catalogs
- 18. GIS systems … … searching GIS data/maps
- 19. Searching picture archives … personal image collections, online databases (Google, Creative Commons)
- 20. Law Enforcement … … searching faces/fingerprints/crime-scene photos
- 22. Visual search – Players in the mobile space An Overview: http://bit.ly/zolGg
- 23. Challenge – Sensory gap Limitation imposed by the sensor – not all information captured!
- 24. Challenge – Semantic Gap Difference between user-interpretation and machine-computed features
- 25. Visual search a.k.a. Content Based Image Retrieval (CBIR) Block-diagram of a typical content-based image retrieval system Comparison Query Index Index File Result Image database
- 28. Image content descriptors – Color
- 29. Image content descriptors – Color
- 32. Problem with color descriptors …
- 34. Image descriptors – Texture Texture differentiates between a Lawn and a Forest
- 41. Similarity/distance metrics No one-size-fits-all!! Target application decides the metric to be used!
- 45. Gazopa – A Visual Search Engine A ‘colorful’ example ;)
- 46. Gazopa – apples are red … Or are they?
- 47. Man’s best friend …
- 48. The sky is the limit …
- 50. The right descriptor is important! This guy’s not going to be happy! OMG!!!
- 51. Bing Image Search Am I looking for motorcycles, logos, Company?!
- 52. Thank You
Notas do Editor
- TODO: Update this slide
- Searching for the right image can be like searching for a needle in a haystack! Picture speaks better than thousand words, but how do you find the right pictures in the thousands (hundreds of thousands!) of pictures?!
- Growth of digital content is exponential; we need a way to index and search this content.
- Doing it well, and doing it fast is the challenge!
- Where does the search query come from?
- Mobile phone + internet access + search databases = Awesomeness!
- Include something on mobile space, this is esp. relevant to Samsung
- Mobile visual search: http://bit.ly/zolGg SnapTell: enhanced print-advertising; index covers books, CDs/DVDs, games Kooabs: Spin-off from ETH, Zurich (Luc Van Gool is one of the founders!) Idee: TinEye Mobile app for the iPhone Evolution robotics: primary licensee of D. Lowe’s SIFT patent