While road obstacle detection techniques have become increasingly effective, they typically ignore the fact that, in practice, apparent size of obstacles decreases as their distance to vehicle increases. In this paper, we account for by computing a scale map encoding hypothetical object at every image location. We then leverage perspective (i) generate training data injecting onto synthetic obj...

This study was performed to test the hypothesis that reducing the horizontal distance between the trailing foot (foot crossing the obstacle last) and obstacle, during stance just prior to stepping over the obstacle, would reduce flexion of the hip, knee, and ankle joints of the trailing limb when the toe is over the obstacle to reduce the vertical toe-obstacle clearance and increase the risk of...

A key obstacle to the experimental realization of many photonic quantum-enhanced technologies is the lack of low-loss sources of single photons in pure quantum states. We demonstrate a promising solution: generation of heralded single photons in a silica photonic chip by spontaneous four-wave mixing. A heralding efficiency of 40%, corresponding to a preparation efficiency of 80% accounting for ...

Bed-making is a universal home task that can be challenging for senior citizens due to reaching motions. Automating bed-making has multiple technical challenges such as perception in an unstructured environments, deformable object manipulation, obstacle avoidance and sequential decision making. We explore how DART, an LfD algorithm for learning robust policies, can be applied to automating bed ...

A variety of safety-enhancing automobile features can be enabled by microsystems that can sense and analyze the dynamic 3D environment inside and outside the vehicle. It is desirable to directly sense the 3D shape of the scene, since the appearance of objects in a 2D image is confounded by illumination conditions, surface materials, and object orientation. To overcome the disadvantages of 3D se...

Introduction. Regarding the role of research in developing and improving a better culture, society and economics, 95% to 97% world finance in research belongs to developed countries while only 3%-5% to developing countries. Although the universities as the major organizations are to do research works, it seems that there are some problems to bring this true. We tried to find out if a load of t...

Optic flow, i.e., retinal image movement resulting from ego-motion, is a crucial source of information used for obstacle avoidance and course control in flying insects. Optic flow analysis may prove promising for mobile robotics although it is currently not among the standard techniques. Insects have developed a computationally cheap analysis mechanism for image motion. Detailed computational m...

A robot can be easily modified to gather depth data alongside optical images. When combined with an effective object detection framework, this allows the robot to not only identify potentially interesting objects but locate their position and orientation within the world. This information is useful for obstacle avoidance and navigation, locating landmarks for positioning, and for locating a tar...