One Dimensional Motion Detector - Multiplicative Inhibitory Velocity Detector (MIVD)

Motion perception is one of the mod important aspect of the biological visual system, @om which we get a lot of infort?tation of the natural world. From the physiological and anatomical study on biological vision system, it is shown tliat the perception of two dimentional (20) t?rotion is in two steps: one dimentional (ID) motion detection arid I D motion information fusion. This paper we pay attention on the j r s t step. Trying to simulate the neurons in MT (motion area in visual cortex) who respond selectively both in direction and speed, we propose a novel multiplicative inhibitory velocity detector (MIYD) model, whose spatiotemporal joint pararrreter K determines its optimal velocity. Based on the Response Amplitude Disparity (RAD) property of A4Il/ll, we construct the ID motion detection layer as a mtrW-veloci ty motion percetron layer, using MIVD(K) as its perceptron.