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Cylindrical panoramic image mosaic has a severe flaw that the focal length must be known. Our article proposes a new method based on image feature points to calculate the focal length in the process of image mosaic. The observation equations can be gotten from the transmission matrix between stitching images. Then the Bundle Adjustment is used to solve equations and optimize the focal length. The...
Nowadays, image enhancement, image restoration and dehazing had made a great progress. This paper addresses the problem of dehazing which is a serious question in computer vision and consumer photography applications. Due to the weakness of the existing methods to compute an accurate transmission map, we use the binocular vision method to compute the depth map. We have used in this paper, the discrepancy...
This paper presents a novel method to realize on-board visual odometry system. Vehicular kinematic constrain is used in the motion estimation algorithms. The work is a extension from planar steering model to 3-dof in which vehicle's motion is modeled more reasonable and accurate. By virtue of appropriate simplification, the close-form solution of motion parameters can be obtained only need to find...
A vision system was designed to detect multiple lanes on structured highway using an “estimate and detect” scheme. It detected the lane in which the vehicle was driving (the central lane) and estimated the possible position of two adjacent lanes. Then the detection was made based on these estimations. The vehicle was first recognized if it was driving on a straight road or in a curve using its GPS...
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