Frontiers of Information Technology & Electronic Engineering
>> 2022,
Volume 23,
Issue 1
doi:
10.1631/FITEE.2000407
Motion detection for high-speed high-brightness objects based on a pulse array image sensor
Affiliation(s): School of Microelectronics, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology, Tianjin 300072, China; less
Received: 2020-08-11
Accepted: 2022-01-24
Available online: 2022-01-24
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Abstract
We describe a method of extraction for high-speed high-brightness targets based on a pulse array image sensor (PAIS). PAIS is a with pixels triggered by light; it can convert light into a series of pulse intervals. This method can obtain from pulse data directly by accumulating continuous pulses. The triggered points can be used to filter redundant data when the target is brighter than the background. The method takes full advantage of the rapid response of PAIS to high-brightness targets. We applied this method to extract the of high-speed turntables with different background brightness, with the sensor model and actual data, respectively. Under the sampling condition of 2×10 frames/s, the could be extracted from a high-speed turntable rotating at 1000 r/min. More than 90% of redundant points could be filtered by our method. Experimental results showed that the extraction algorithm based on pulse data can extract the information of high-brightness objects efficiently without the need to reconstruct images.
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