Determination of optimal compensation for velocity measurement based on compensation method

In this paper we propose an optical flow estimation method based on compensating method by using spatiotemporal differentiation. Spatiotemporal differentiation enables us to calculate velocity distribution rapidly, but the error in the approximation of derivative coefficients increases as the displacement of the moving pattern between the successive frames becomes large. To expand the range of measurable velocity using spatiotemporal differentiation, we use the compensation method. In previous research, we used an actuator to realize the compensating method. In this research, we introduce improved computational scheme without using the actuator. Experimental results show that more accurate velocity is attained.