| Autor: |
Rosa María Rodríguez Sánchez, Jose A. Garcia, José Manuel Fuertes García, Xose R. Fdez-Vidal |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Optical Engineering. 40:1794 |
| ISSN: |
0091-3286 |
| Popis: |
We present a new method for characterizing information about a target relative to its background. The resultant computational measures are then applied to quantify the visual distinctness of targets in complex natural backgrounds from digital imagery. A generalization of the Kullback-Leibler joint information gain over the optimal interest points of the target image is shown to correlate strongly with visual target dis- tinctness as estimated by human observers. Optimal interest points are defined as spatial locations of partially invariant features, which minimize the error probability between the target and the nontarget scenes; their significance is a function of the corresponding degree of congruence across scales and orientations. © 2001 Society of Photo-Optical Instrumentation Engineers. (DOI: 10.1117/1.1389064) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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