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The background subtraction is an important method to detect the moving objects, and effective background reconstruction is the key for the background subtraction. Based on the idea that the pixel average appearing with high frequency in an image series is the background points, the pixel intensity classification (PIC) algorithm can reconstruct background accurately. In this paper, a new background...
This paper presents a vision-based obstacle avoidance design using a monocular camera onboard a mobile robot. An image processing procedure is developed to estimate distances between the robot and obstacles based-on inverse perspective transformation (IPT) in image plane. A robust image processing solution is proposed to detect and segment navigatable ground plane area within the camera view. The...
In this paper, we present a time reversal SAR (TR-SAR) algorithm to improve the target images and reduce the ghost images by utilizing different polarizations in an environment filled with trees.
In this paper, we present a broadband single antenna target detection scheme using frequency selection time reversal method to further improve the target detection in a cluttered environment. By re-transmitting time-reversed difference signal between reflections from the environment with and without the target, constructive interferences between the target and the background scatterers are utilized...
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