Image Information Retrieval (1)
- Faloutsos, et al, "Efficient and Effective Querying by Image Content", 1994
- Collection: images, descriptive keywords and semi-automatically defined objects
- Feature extraction: color, texture, shape, position of images and objects
- It takes 4 hours to extract 1000 images and 2000 objects on a RS6000 machine
- Query models: query by example, progressive query
- "Retrieve a beach scene" ==> "35% white and 65% blue area coverage with presence of sand texture"
- Query speed: 2 to 40 seconds
- Recall rate: query by color 69/72, query by shape 53/64
- Potential applications:
- medical: "Give me other images that contain a tumor with a texture like this one"
- photo-journalism: Give me images that have blue at the top and red at the bottom
- art, fashion, cataloging, retailing and industry, ....
Notes: