1 / 12

Roles of Local and Global Information in Image Classification

Explore the roles of local and global information in image classification using human and machine studies. Investigate the accuracy and effectiveness of existing models and propose advanced modeling techniques for better classification results.

varsha
Download Presentation

Roles of Local and Global Information in Image Classification

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Roles of local and global information in image classification Devi Parikh

  2. Aeroplane Car-rear Face Coast Highway Mountain Street OSR Inside city Open country Tall buildings Forest Ketch Watch Motorbike Bathroom Bedroom Dining room Gym ISR Stair case Kitchen Living room Movie theater CAL

  3. Jumbled Images

  4. Human Study: Intact Images

  5. Human Study: Jumbled Images

  6. Human Recognition of Jumbled Images Accuracy

  7. How do we recognize them? … Are existing machine implementations of this model good enough? Majority Vote of Local Independent Decisions? MRF Inference?

  8. Human Studies: Individual Blocks

  9. Human Recognition of Individual Blocks Accuracy

  10. Machine Experiments • Assign blocks to codewords • Accumulate p(scene|codewords) • Pick class with highest votes

  11. Majority Vote Results Proportion of matched responses

  12. Classification of Jumbled Images Accuracy Need advanced modeling of global information

More Related