Vehicle attribute information determination method and device, computer device, storage medium and program product

CN122906109APending Publication Date: 2026-10-13CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202611270249.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-20
Publication Date
2026-10-13

AI Technical Summary

Technical Problem

[0003]传统技术中,在确定车辆属性信息时,一般采用仅校验车辆单一中心点的确定方式;但是,这种方式识别车身局部落入镜头畸变区的失真目标有限,容易基于畸变像素计算车辆属性,导致车辆属性信息的确定准确度较低

Benefits of technology

[0059]上述车辆属性信息确定方法、装置、计算机设备、存储介质和计算机程序产品,先获取自车携带的摄像设备所拍摄的目标车辆的车辆图像,对车辆图像进行目标检测处理,得到目标车辆的边界框和基准目标点;再根据边界框,确定出目标车辆的车辆航向角;接着,根据基准目标点的目标点类型,确定目标车辆的边界目标点,基于基准目标点的第一目标点坐标、目标车辆的初始属性信息和车辆航向角,确定目标车辆的边界目标点的第二目标点坐标;第二目标点坐标包括第二目标点横坐标和第二目标点纵坐标;然后,获取摄像设备距离自车的后轴中心的横向距离和第一纵向距离,以及摄像设备的视场角,基于第二目标点纵坐标、横向距离、第一纵向距离、视场角和目标车辆的有效系数,确定第二目标点横坐标对应的坐标判断阈值,基于第二目标点横坐标与坐标判断阈值,确定出基准目标点的目标点判断结果;目标点判断结果用于表示基准目标点是否属于有效目标点;最后,在目标点判断结果表示基准目标点属于有效目标点的情况下,根据第二目标点坐标,确定出目标车辆的目标属性信息。这样,在确定车辆属性信息时,通过获取摄像设备拍摄的目标车辆图像并经目标检测得到边界框和基准目标点,先基于边界框确定车辆航向角,再结合基准目标点类型、第一目标点坐标、初始属性信息及车辆航向角,可以准确地确定出边界目标点的第二目标点坐标,同时结合摄像设备的横向距离、第一纵向距离、视场角及目标车辆有效系数,可以准确地确定出第二目标点横坐标的坐标判断阈值,进而准确地判断基准目标点是否为有效目标点,在基准目标点准目标点是否属于有效目标点;最后,在目标点判断结果表示基准目标点,基于第二目标点坐标可以更加准确地确定出目标车辆的目标属性信息,替代了传统仅校验车辆单一中心点的方式,有效规避了车身局部落入镜头畸变区导致目标失真、基于畸变像素计算属性的问题,有利于提高车辆属性信息的确定准确度。

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Abstract

The application relates to a vehicle attribute information determination method and device, computer equipment, a storage medium and a program product. The method comprises the following steps: determining a boundary box and a reference target point of a target vehicle according to a vehicle image of the target vehicle captured by a camera device carried by a self-vehicle; determining a vehicle heading angle of the target vehicle according to the boundary box; determining a boundary target point of the target vehicle according to a target point type of the reference target point; determining second target point coordinates of the boundary target point based on first target point coordinates of the reference target point, initial attribute information of the target vehicle and the vehicle heading angle; determining a target point judgment result of the reference target point based on a lateral distance and a first longitudinal distance of the camera device, the second target point coordinates, a field angle of the camera device and an effective coefficient of the target vehicle; and determining target attribute information of the target vehicle in the case that the reference target point belongs to an effective target point. The method can improve the determination accuracy of vehicle attribute information.
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