A vehicle-mounted machine vision system based on a multi-focus camera group
A technology of machine vision system and camera group, which is applied in closed-circuit television systems, components of television systems, televisions, etc., can solve the problem that a single focal length camera cannot take into account a large shooting angle and shoot distant objects at the same time, and cannot shoot long-distance objects. , small shooting angle and other problems, to achieve the effect of reliable performance, long detection range and long measurement distance
Active Publication Date: 2021-03-16
WUHAN UNIV OF TECH
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Problems solved by technology
[0004] However, most of today's vehicle-mounted machine vision systems use cameras with a single focal length. Due to the limitation of the camera lens, the telephoto camera has a long shooting distance, but the shooting angle is often small. object
A camera with a single focal length cannot simultaneously take into account the large shooting angle and the need to shoot long-distance objects. As a result, under the above-mentioned complex road conditions, the range of machine vision is limited and cannot meet the needs of applications such as assisted driving and smart headlights.
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[0024] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0025] This embodiment can recognize object information in different ranges in front of the vehicle, including 3D position information and preliminary classification information of the object, and can also estimate road information ahead according to an algorithm.
[0026] The present embodiment is achieved through the following technical solutions, a vehicle-mounted machine vision system based on multiple focal length cameras, such as figure 1 As shown, it includes monocular telephoto camera module, binocular wide-angle camera module, graphics computer system, embedded communication unit and vehicle controller and other modules. The monocular telephoto camera module and the binocular wide-angle camera module are respectively connected to the graphics computer system, and the graphics computer system is connected to the embedded communication unit and ...
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The present invention relates to signal processing and machine learning technology, in particular to a vehicle-mounted machine vision system based on a multi-focus camera group and its implementation method, including a monocular camera, a binocular camera, a graphics computer system, an embedded communication unit and an automotive controller module ; The monocular camera adopts a telephoto lens to observe the long-distance target, and recognize the category and location information of the target, and at the same time, it is used to estimate the road information far ahead; The same wide-angle lens is used to observe near objects and determine the distance to near objects. The vehicle-mounted machine vision system has low cost and strong adaptability. Compared with the traditional vehicle-mounted machine vision system, it has the functions of both far and near targets, and has certain target tracking and ranging functions. The degree of automation is high, without manual operation by the driver, which can give the driver a wider effective field of vision and a better driving experience.
Description
technical field [0001] The invention belongs to the technical field of signal processing and machine learning, and in particular relates to a vehicle-mounted machine vision system and an implementation method based on a multi-focus camera group. Background technique [0002] In order to meet the needs of applications such as autonomous driving, under complex and changeable road conditions, it is often necessary to pay attention to both short-range targets, such as pedestrians and obstacles, and distant targets, such as oncoming vehicles and signal lights. Wait. [0003] The on-board machine vision system is an important part of the assisted driving system, which mainly recognizes the vehicle body and road information in front of the vehicle through the camera. The vehicle-mounted machine vision system can assist the driver to judge the road conditions, thereby helping the driver to make correct driving behaviors, reduce improper operations caused by visual reasons, make the...
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IPC IPC(8): H04N7/18H04N5/225G01B11/02
CPCH04N7/181G01B11/026H04N23/55
Inventor 吴友宇汪宇龙张鹏辉张顺付洪硕王源宇
Owner WUHAN UNIV OF TECH