CoPhIR

CoPhIR

Domain	Divers
Media	Image
Size
Instances	106 Mill. images
File Format	JPEG
Creation Date
Task	Retrieval
Copyright
URL	http://cophir.isti.cnr.it/

Domain

• CoPhIR (Content-based Photo Image Retrieval)

Comments

• 106 million images

• For each image, the standard MPEG-7 image feature have been extracted. Each entry of the test-bed contains:
  • The link to the corresponding entry into Flickr Web site
  • The photo image thumbnail
  • An XML structure with the Flickr user information in the corresponding Flickr entry: title, location, GPS, tags, comments, etc.
  • An XML structure with 5 extracted standard MPEG-7 image features:
    • Scalable Colour
    • Colour Structure
    • Colour Layout
    • Edge Histogram
    • Homogeneous Texture

Media (image, video, mixed, …)

• Image, Text

Size (no images, in GB, …)

Source (FlickR, Corel)

• metadata extracted from the Flickr archive.

Annotation type (free text, structured, …)

Ground truth

Event or project

Task (retrieval, recognition, …)

Format

Quality (resolution)

Creation date

Copyright

• The organizations (universities, research labs, etc.) interested in building experimentations on it should sign the enclosed CoPhIR Access Agreement and the CoPhIR Access Registration Form, sending the original signed documents to us by mail. Please follow the instruction in the section “How to get CoPhIR Test Collection”. You will then receive Login and Password to download the required files.
• About citing CoPhIR, we kindly ask you to refer the following paper in any publication mentioning CoPhIR:

    Paolo Bolettieri, Andrea Esuli, Fabrizio Falchi, Claudio Lucchese, Raffaele Perego, Tommaso Piccioli, Fausto Rabitti. CoPhIR: a Test Collection for Content-Based Image Retrieval. CoRR abs/0905.4627: (2009)

URL

http://cophir.isti.cnr.it/