Abstract
This paper describes SFM(Spatial Filtering Method) which is image analysis velocimetrp for measuring the particle velocity of solid-air multiphase upward flow like that in the riser of CFB. For image analysis as SFM, there are some difficult conditions such as the high particle density and the high particle velocity. This time we developed in the image processing and image analysis program, further repairing in the number of image frames per time. The results also depended on selection of tracer particle which indicated us offering the good image pictures. We reconfirmed that SFM was successful method for measuring particle velocity.
