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Image processing method and device

An image processing and image calibration technology, applied in the image field, can solve problems such as affecting the production efficiency of automobiles, achieve accurate decoding results and reduce decoding time.

Pending Publication Date: 2021-08-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The speed reliability of the external parameter calibration link of the camera affects the production efficiency of the car to a certain extent

Method used

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  • Image processing method and device
  • Image processing method and device
  • Image processing method and device

Examples

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example 2

[0123] Example 2, position markers can be marked by intersections.

[0124] For example, position markers are marked by a cross in the center of the calibration image.

[0125] Figure 7 A possible form is exemplarily listed.

[0126] Such as Figure 7 As shown in , the position marker can be determined by a cross in the center of the calibration image.

[0127] Figure 7 In , dots can represent code points. Exemplarily, the code points may be arranged in an inner circle and an outer circle. It should be understood that Image 6 The positions of the dots (that is, code points) in do not limit the protection scope of the embodiments of the present application. In actual operation, the position of the code point can be determined according to the actual situation.

[0128] Figure 7 In , the outer contour shape of the calibration image can be a circle. For example, a central intersection point may coincide with the center of the outer contour circle.

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Abstract

The invention provides an image processing method and device. The method comprises the following steps: acquiring a calibration image, wherein the calibration image comprises a position mark for indicating a positioning point of the calibration image; and decoding the calibration image based on the calibration image and the position mark. Based on the method and the device, the position mark is carried in the calibration image, so that when the calibration image is decoded, the position of the positioning point can be simply, quickly and accurately determined according to the calibration image. Therefore, not only can a more accurate decoding result be obtained, but also the decoding duration can be shortened.

Description

technical field [0001] The present application relates to the field of image technology, and in particular to an image processing method and device. Background technique [0002] Camera calibration is the basis of machine vision, and the quality of the calibration results directly determines the system accuracy of machine vision. [0003] Taking self-driving cars as an example, self-driving cars rely on numerous sensors to perceive the surrounding environment. Among them, the cameras on the self-driving cars play an important role. The camera can provide the necessary information for the safe driving of the vehicle by analyzing the image. The internal reference of the camera has been determined at the time of manufacture, and it is relatively accurate, and individual differences are small. The external parameters of the camera are greatly affected by the installation, so the calibration is generally performed after the camera is installed on the vehicle. [0004] The spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G06T7/60G06T9/00H04N19/44
CPCG06T7/80G06T7/60G06T9/00H04N19/44G06T2207/30252G06T2207/30204G06T2207/10024G06V10/225G06V10/28G06V10/46
Inventor 许可陈同庆陈亦伦
Owner HUAWEI TECH CO LTD
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