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公开(公告)号：US20220097661A1
公开(公告)日：2022-03-31
申请号：US17176523
申请日：2021-02-16
发明人： Ran MENG , Hua CHAI , Yanqiu XIA , Zhe WANG , Yong JIA , Hui CAI , Chuanbin FENG
摘要： The present disclosure provides vehicle braking and warning method, system and device based on a binocular stereo camera. The vehicle braking and warning method includes: acquiring first target information within a detection range of the binocular stereo camera, second target information within a detection range of a millimeter-wave radar, and current vehicle driving information; acquiring sensing result data about a target obstacle in accordance with the first target information and the second target information in conjunction with a predetermined weight; and outputting a braking instruction and/or a warning instruction in accordance with the sensing result data and the current vehicle driving information so as to enable a vehicle to adjust its driving state in accordance with the instructions.
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公开(公告)号：US20230037072A1
公开(公告)日：2023-02-02
申请号：US17643305
申请日：2021-12-08
IPC分类号： H04N5/232 , H04N13/239
摘要： A method and a system for calculating a focusing parameter of a binocular stereo camera, and an intelligent terminal are provided. The method includes: calculating a lower limit value and an upper limit value of a distance measurement range; acquiring a depth-of-field range in accordance with the lower limit value and the upper limit value; calculating a maximum value and a minimum value of an image distance gain corresponding to a real object distance within the depth-of-field range, and calculating an optimal image distance gain in accordance with the maximum value and the minimum value; acquiring an optimal object distance of a focused target in accordance with the optimal image distance gain; and calculating an optimal size of the focused target in accordance with the optimal object distance.
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公开(公告)号：US20200304774A1
公开(公告)日：2020-09-24
申请号：US16585748
申请日：2019-09-27
发明人： Ran MENG , Zhipeng XIAO , Hua CHAI , Haifeng LAI , Zhe WANG , Jixia DU , Zunying PANG
摘要： The present disclosure provides a method and a device for detecting a height-limiting rod, and an automatic driving system, for use in a binocular stereo camera. The method includes: filtering out invalid points in a disparity map corresponding to a target image in accordance with a predetermined detection range, so as to acquire a valid point disparity map; projecting the valid point disparity map along an X-axis direction in a three-dimensional coordinate system onto a plane where a Y axis and a Z axis are located, and counting the quantity of valid points for each row of pixels with respect to each disparity value, so as to acquire a projection image; filtering out invalid projection points and invalid blobs in the projection image, so as to acquire a valid blob image; and back-projecting the valid blob image to the three-dimensional coordinate system, and determining a rectangular region where the height-limiting rod is located in accordance with X-axis, Y-axis and Z-axis coordinate values.
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公开(公告)号：US20220080901A1
公开(公告)日：2022-03-17
申请号：US17176392
申请日：2021-02-16
发明人： Ran MENG , Hua CHAI , Yanqiu XIA , Zunying PANG , Zhe WANG , Yong JIA , Hui CAI , Chuanbin FENG
摘要： The present disclosure provides a vehicle positioning device for vehicle vision calibration, a positioning adjustment method, and a positioning adjustment system. The vehicle positioning device includes a base, a chassis, a translation mechanism and a rotation mechanism. A to-be-calibrated vehicle is placed onto the chassis, and the chassis is provided with a stopper. The translation mechanism is arranged between the chassis and the base, and configured to drive the chassis to move in an X-axis direction in a three-dimensional coordinate system relative to the base in accordance with a translation control instruction. The rotation mechanism is arranged between the chassis and the base, and configured to drive the chassis to rotate about a Z-axis in the three-dimensional coordinate system relative to the base in accordance with a rotation control instruction.
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