Video-rate digital image analysis equipment

摘要

In parallel cellular arrays the same instruction may be executed on many pixels in parallel. Some commercially available systems use an alternative approach in which the same instruction is executed on many pixels serially, at approximately 107 pixels s−1: this is known as video-rate processing. Besides table look-up and arithmetical operations, ambitious connectivity-based image analysis is performed at video rates in commercially available equipment. For example, a histogram showing how many separate connected regions have what area can be obtained in one video frame time. This paper reviews various video-rate techniques, and proposes a microprocessor technique for video-rate connectivity-based analysis. Graphics capabilities such as roam and movie are not reviewed.