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Computer Vision and the Web

Discover how computer vision technology augments online experience and aids in visual analysis, from web images to satellite imagery. Explore practical applications, challenges, and newest trends in computer vision for the web.

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Computer Vision and the Web

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  1. Computer Vision and the Web 916,271 titles 10 mil. videos, 65,000 added daily Images on the Web Movies, news, sports 350 mil. photos, 1 mil. added daily 1.6 bil. images indexed as of summer 2005 Satellite imagery City streets

  2. Exploring online photo collections: Flickr.com • Flickrvision • Flickr tag browser • Flickr time graphs

  3. Artistic Visualization • Jason Salavon • 100 Special Moments • Homes for Sale • Every Playboy centerfold

  4. Problems with image access on the Web • But what if the question is a picture? • To find anything on the Web, you must search with words! Small furry animal with pointy snout and long tail? Small sand-colored African mammal? Beige-colored animal with dark eyespots, ears, and tip of tail? Cute gopher-like beastie that likes to stand up and hang out in groups?

  5. Short-term solution: Human computation • Identifying bugs and birds • Labeling images: ESP Game, Peekaboom

  6. Where does computer vision come in?

  7. Visual search • Linking physical objects to the web: Microsoft Lincoln project • Product search: Like.com • Searching personal photo albums: Riya.com

  8. Visual sentiment analysis • Attractiveness: Hot or Not (research project) • Cuteness: Cute overload • Interestingness: Flickr

  9. Exploring photo collections in 3D • Photo tourismSnavely, Seitz and Szeliski (SIGGRAPH 2006) • Automatic photo pop-upHoiem and Efros (SIGGRAPH 2005)

  10. Practical details • Tuesdays at 3:30, room SN 115 • Basic format: weekly discussion group • Paper list: http://www.cs.unc.edu/~lazebnik/fall07 • Variable credit: talk to me about doing extra work!

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