Design of a correlator for real-time video comparisons
Abstract
The problem of locating a reference image within a larger image using a correlation technique is discussed. Although the particular application discussed is that of locating a reference image obtained from one video sensor or a photograph, within the larger field of view obtained from a second video sensor in real time (i.e., at the TV field rate), the results are general and useful for a number of applications. The tradeoffs necessary to obtain real time correlation are discussed and their effect on correlation accuracy is given.
- Publication:
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IEEE Transactions on Aerospace Electronic Systems
- Pub Date:
- January 1979
- DOI:
- Bibcode:
- 1979ITAES..15...11B
- Keywords:
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- Error Analysis;
- Image Correlators;
- Real Time Operation;
- Remote Sensors;
- Statistical Correlation;
- Video Data;
- Aerial Photography;
- Algorithms;
- Comparison;
- Computer Programs;
- Signal To Noise Ratios;
- Stochastic Processes;
- Instrumentation and Photography