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Vertical line-like structures are abundant in man-made environments, such as the vertical edges of buildings in an outdoor environment and door frames and vertical edges of furniture in an indoors environment. These ubiquitous line or line-like structures may provide useful information for mobile robot navigation. In this paper, we propose an approach to estimating the camera orientation based on...
We present a homography-based approach to detect the ground plane from monocular sequences captured by a robot platform. By assuming that the camera is fixed on the robot platform and can at most rotate horizontally, we derive the constraints that the homograph of the ground plane must satisfy and then use these constraints to design algorithms for detecting the ground plane. Due to the reduced degree...
This paper presents a practical approach to ground detection in mobile robot applications based on a monocular sequence captured by an on-board camera. We formulate the problem of ground plane detection as one of estimating the dominant homography between two frames taken from the sequence, and then design an efficient algorithm for the estimation. In particular, we analyze a problem inherent to any...
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