Synopsis This review discusses theoretical, behavioral, and physiological studies of motion mechanisms. The three main schemes for motion detection (space-time correlation, orientation, and gradients) are contrasted using experimental data from insects, rabbits, cats, monkeys, and humans. These schemes provide a basic understanding of the organization of many neural motion detection systems. Ho...

In this paper, a motion field representation algorithm based on directional edge information has been developed. This work is aiming at building an ego-motion detection system using dedicated VLSI chips developed for real time motion field generation at low powers [1], [2]. Directional edge maps are utilized instead of original gray-scale images to represent local features of an image and to de...

Thresholds for the detection of motion in depth in the median plane of the head are substantially poorer than those for motion in the frontoparallel plane. This suggests the existence of two independent mechanisms for their detection. Any three-dimensional (3-D) motion can be decomposed into components of motion in the frontoparallel plane and in the median plane of the head. Can human performa...

This paper presents an overview of an object detection and tracking method used in SETh system (Simple Enemy Tracking). Most of visual systems use only motion features to detect and track objects of interest. Object tracking is a complex problem and thus cannot be solved using only motion data [6]. There are numerous cases where it is required to detect only, for example, small red moving objec...

oceanographic images obtained from environmental satellites by a wide range of sensors allow characterizing natural phenomena through different physical measurements. for instance sea surface temperature (sst) images, altimetry data and ocean color data can be used for characterizing currents and vortex structures in the ocean. the purpose of this thesis is to derive a relatively complete frame...