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Method and device for adjusting field angle of camera

A camera and field of view technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problem of vehicles occupying images, the accuracy of visual algorithm detection and tracking decreases, and the accuracy and safety cannot be given. Driving strategy and other issues to achieve the effect of reducing difficulty and reducing system load

Active Publication Date: 2020-08-04
MOMENTA SUZHOU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional car-following method in the visual part of automatic driving uses a camera with a fixed focal length. This method usually has the following problems: if the distance between the current vehicle and the target vehicle is relatively close or the target vehicle is large in size, if the camera’s field of view is small, Then the vehicle will occupy most of the image, and the camera will not be able to capture enough surrounding environment information to judge, so that it will not be able to give an accurate and safe driving strategy; and when the camera field of view is large, the target vehicle in the image is very small, at this time the accuracy of detection and tracking in the vision algorithm will decrease

Method used

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  • Method and device for adjusting field angle of camera
  • Method and device for adjusting field angle of camera

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Experimental program
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Embodiment 1

[0075] see figure 1 , figure 1 It is a schematic flowchart of a method for adjusting a field of view angle of a camera provided by an embodiment of the present invention. The method is applied to automatic driving, and can be performed by a device for adjusting the field of view of the camera. The device can be implemented by software and / or hardware, and can generally be integrated into an on-board computer, on-board industrial personal computer (IPC), etc. In the in-vehicle terminal, the embodiment of the present invention is not limited. like figure 1 As shown, the method for adjusting the field of view of the camera provided by this embodiment specifically includes:

[0076] 110. Acquire a road image including the target vehicle collected by the current camera.

[0077] The target vehicle is a vehicle that may affect the driving strategy of the current vehicle, for example, a vehicle ahead, a vehicle coming from behind, or a vehicle coming from the side, etc., which ar...

Embodiment 2

[0095] see figure 2 , figure 2 It is a schematic flowchart of a method for adjusting a field of view angle of a camera provided by an embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment, such as figure 2 As shown, the method includes:

[0096] 210. Acquire a road image including the target vehicle collected by the current camera.

[0097] 220. Split the road image according to different planes of the target vehicle to obtain the local detection frames of each plane of the target vehicle in the split image.

[0098] 230. For any local detection frame, determine the proportional value of the local detection frame in the split image, and if the proportional value is greater than the preset first proportional threshold, increase the field of view of the current camera.

[0099] Exemplarily, increasing the field of view of the current camera can be implemented in any of the following two ways:

[0100] (1) The met...

Embodiment 3

[0117] see image 3 , image 3This is a schematic flowchart of a method for adjusting the field of view angle of a camera provided by an embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiment, and introduces the specific method of splitting road images according to different planes of the target vehicle. split method. like image 3 As shown, the method provided by this embodiment specifically includes:

[0118] 310. Acquire a road image including the target vehicle collected by the current camera.

[0119] 320. Identify the road image based on the preset vehicle target detection model to obtain an overall detection frame of the target vehicle.

[0120] Wherein, the preset vehicle target detection model is obtained by training a pre-established initial neural network model by using road sample images marked with vehicle positions.

[0121] Among them, the vehicle position in the road sample image is marked by the co...

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Abstract

An embodiment of the invention discloses a method and a device for adjusting a field angle of a camera. The method comprises the steps of: acquiring a road image which is collected by a current cameraand contains a target vehicle; splitting the road image according to different planes of the target vehicle to obtain a local detection frame of each plane of the target vehicle in the split image; and for an arbitrary local detection frame, determining a proportion value of the local detection frame in the split image, and determining an adjustment mode of a field angle of the current camera according to the proportion value. By adopting the method and the device, the field angle of the current operating camera can be adjusted in real time according to an image observed in real time, so as to capture enough surrounding environment information.

Description

technical field [0001] The invention relates to the technical field of automatic driving, in particular to a method and device for adjusting the field of view angle of a camera. Background technique [0002] With the development of science and technology, emerging technologies such as "autonomous driving" and "unmanned vehicles" have gradually entered people's field of vision. Among them, high-precision vehicle detection and identification, fast-changing road condition judgment, and appropriate speed and direction adjustment are all technical problems that need to be overcome in the field of unmanned vehicles. Compared with the analysis and processing of road information such as lane lines, stationary obstacles, traffic lights and traffic signs, and pedestrian information in the road area, the processing of vehicle information on the road is often more complicated. Information such as speed, distance, and steering of surrounding vehicles has the characteristics of temporali...

Claims

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Application Information

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IPC IPC(8): H04N5/232G06K9/00
CPCG06V20/588H04N23/67H04N23/69
Inventor 李亚费晓天
Owner MOMENTA SUZHOU TECH CO LTD