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Computer Vision and the Web

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. Exploring online photo collections: Flickr.com.

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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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