This paper presents a system that detects a path of moving obstacle that appear in the path of a navigating robot. The objective of the system is to avoid collision between mobile robot and moving obstacles. The system uses polar mapping to simplify the segmentation of the moving object from the background. In the transformed space qualitative extimation of moving obstacles is obtained by detec...

Moving object detection and tracking is often the first step in applications such as video surveillance. It is hard to detect the object in turbulent medium where the object is moving also. Three-way decomposition methods which can detect moving object in turbulent medium. But it suffers to obtain outlier of the object clearly, final output image is without background. In this paper, it is prop...

In the primate visual system, there is a significant delay in the arrival of photoreceptor signals in visual cortical areas. Since Helmholtz, scientists have pondered over the implications of these delays for human perception. Do visual delays cause the ' position of a moving object to lag its 'real' position? This question has recently been re-evaluated in the context of the flash-lag phenomen...

1— In this paper we present a monocular vision system for a navigation aid. The system assists blind persons in following paths and sidewalks, and it alerts the user to moving obstacles which may be on collision course. Path borders and the vanishing point are detected by edges and an adapted Hough transform. Optical flow is detected by using a hierarchical, multi-scale tree structure with anno...

One of the most fundamental functions of the visual system is to code the positions of objects. Most studies, especially those using fMRI, widely assume that the location of the peak retinotopic activity generated in the visual cortex by an object is the position assigned to that object-this is a simplified version of the local sign hypothesis. Here, we employed a novel technique to compare the...

The process of locating a moving object in time that is visualized by camera and used in surveillance, animation and robotics is usually associated to the video tracking. Tracking is defined as the set of constraints that describes the better action performed. The key difficulty in video tracking is to associate target locations in consecutive video frames, especially when the objects are movin...