Author(s)

T. Kobayashi & T. Saga

Abstract

Invited Paper An automatic digital image processing system for whole field flow measurement T. Kobayashi, T. Saga Institute of Industrial Science, The University of Tokyo, 7-22-1, Roppongi, Minato-ku, Tokyo 106, Japan ABSTRACT An automatic image processing system for measuring instantaneous, whoie field of velocity vectors was developed. This system is connected with the classical flow visualization technique (tracer injection method) and sophisticated image processing technique. The measurement system consists of a laser light source, a TV camera, a laser optical disk recorder and an image processor interfaced with a 16 bit micro-computer. The tracer particles injected into the liquid flow are illuminated using the pulsed laser light sheet and are tracked by the TV camera. The images recorded on the laser disk are later replayed and sent to the image processor, and instantaneous velocity v

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