Corner point detection method and device and calibration board

The invention belongs to the technical field of image processing, and particularly relates to a corner detection method and device and a calibration board. The problem of missing detection of the inner corner points when the inner corner points of the calibration plate are detected in an image recognition mode in the prior art can be solved. The method comprises the steps that a to-be-detected image is acquired, the to-be-detected image comprises a calibration plate, the calibration plate comprises a plurality of inner corner points, and a preset arrangement relation exists between a first part corner point and a second part corner point in the plurality of inner corner points; identifying a first part of angular points in the to-be-detected image; and determining a second part of angular points in the to-be-detected image in combination with the first part of angular points according to a preset arrangement relationship. 本申请属于图像处理技术领域，尤其涉及一种角点检测方法、装置及标定板。能够解决现有技术中的通过图像识别的方式检测标定板的内角点时存在内角点漏检的问题。该方法包括获取待检测图像，待