| 摘要 |
Signals from an object in a field of view are detected by an array of directional sensors and "re-converged" to create a three-dimensional image as the object changes contrast or moves relative to the sensors. Each sensor is oriented along an axis toward the field of view. Sensor signals are converted to logarithms thereof and transients are detected and compared to background signals. Resulting signals are connected in overlapping groups to coincidence detectors in a matrix. Each point in the field of view where two or more sensor axes intersect is represented by a coincidence detector, which is connected to the corresponding group of sensors. If a threshold number of sensors in the group detects a transient, the corresponding point in the image is deemed to be "contrasty" and can be made visible or otherwise perceivable by a human or can be further processed by a computer or other circuit. |
