Anomaly detection and target prioritization in planetary imagery via the automated global feature analyzer (AGFA): Progress towards a driver for autonomous C4ISR missions
| Autor: | Wolfgang Fink, Alexander J.-W. Brooks, Mark A. Tarbell |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
business.industry Feature vector Feature extraction 02 engineering and technology Image segmentation 021001 nanoscience & nanotechnology Hierarchical clustering Feature (computer vision) Principal component analysis 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Computer vision Anomaly detection Artificial intelligence 0210 nano-technology business Cluster analysis |
| Zdroj: | Micro- and Nanotechnology Sensors, Systems, and Applications X. |
| DOI: | 10.1117/12.2303795 |
| Popis: | The Automated Global Feature AnalyzerTM (AGFATM) is a generically applicable automated sensor-data-fusion, feature extraction, feature vector clustering, anomaly detection, and target prioritization framework. AGFATM operates in the respective feature space delivered by the sensor(s). In this paper we provide an overview of the inner workings of AGFATM and apply AGFATM to planetary imagery, representative of past, current, and future planetary missions, to demonstrate its automated and objective (i.e., unbiased) anomaly detection and target prioritization (i.e., region-of-interest delineation) capabilities. Imaged operational areas are locally processed via a cascade of image segmentation, visual and geometric feature extraction, agglomerative clustering, and principal components analysis. Resulting clusters are labeled based on relative size and location in feature space. Anomalous regions may be considered immediate targets for follow-up in-situ investigation by local robotic agents, which can be directed via autonomous telecommanding, e.g., as part of a Tier-Scalable Reconnaissance mission architecture. These capabilities will be essential for driving fully autonomous C4ISR missions of the future, since the speed of light prohibits “real time” Earth-controlled conduct of planetary exploration beyond the Moon. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|