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Scale- and orientation-invariant scene similarity metrics for image queries
| Content Provider | Scilit |
|---|---|
| Author | Stefanidis, Anthony Agouris, Peggy Georgiadis, Charalambos Bertolotto, Michela Carswell, James D. |
| Copyright Year | 2002 |
| Description | Journal: International Journal of Geographical Information Science In this paper we extend our previous work on shape-based queries to support queries on configurations of image objects. Here we consider spatial reasoning, especially directional and metric object relationships. Existing models for spatial reasoning tend to rely on pre-identified cardinal directions and minimal scale variations, assumptions that cannot be considered as given in our image applications, where orientations and scale may vary substantially, and are often unknown. Accordingly, we have developed the method of varying baselines to identify similarities in direction and distance relations. Our method allows us to evaluate directional similarities without a priori knowledge of cardinal directions, and to compare distance relations even when query scene and database content differ in scale by unknown amounts. We use our method to evaluate similarity between a user-defined query scene and object configurations. Here we present this new method, and discuss its role within a broader image retrieval framework. |
| Related Links | https://arrow.dit.ie/cgi/viewcontent.cgi?article=1026&context=dmcart |
| Ending Page | 772 |
| Page Count | 24 |
| Starting Page | 749 |
| ISSN | 13658816 |
| e-ISSN | 13623087 |
| DOI | 10.1080/13658810210148552 |
| Journal | International Journal of Geographical Information Science |
| Issue Number | 8 |
| Volume Number | 16 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2002-12-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: International Journal of Geographical Information Science Artificial Intelligence Spatial Reasoning a Priori Knowledge Image Retrieval |
| Content Type | Text |
| Subject | Geography, Planning and Development Library and Information Sciences Information Systems |
