Object surface three-dimensional morphology feature measurement method, device and equipment and storage medium

Abstract

The invention discloses an object surface three-dimensional morphology feature measurement method, device and equipment and a storage medium. The method comprises the steps: M color images corresponding to M height points are acquired; centroids of N optical fiber light spots of the color image at different positions are extracted based on an adaptive centroid extraction algorithm, wherein the optical fiber bundle for parallel measurement is composed of N optical fibers; a target image corresponding to the optical fiber light spot position in the color image is intercepted according to the light spot centroid; color space conversion is conducted on the target image to obtain a hue parameter H value related to the wavelength; the hue parameter H value is screened and filtered to obtain a corresponding standard H value; an H value-height calibration curve of the optical fiber is obtained according to the standard H value and the height corresponding to the standard H value; and the to-be-measured target object is substituted into the calibration curve input, and the three-dimensional morphology feature of the object surface of the to-be-measured target is measured. Measurement errorscaused by transverse crosstalk between adjacent optical fibers can be corrected, and the three-dimensional morphology of the surface of an object can be measured.

Description

Technical field [0001] The invention relates to the field of optical detection, in particular to a method, device, equipment and storage medium for measuring three-dimensional topographic features of an object surface. Background technique [0002] With the advancement of science and technology and the development of productivity, there is a great demand for the measurement of the three-dimensional topography of the object surface in various fields, especially in the fields of intelligent manufacturing, aerospace, cultural relics protection, medical and health, distance education, etc. application. Nowadays, three-dimensional surface topography measurement of objects has become a hot spot for experts and scholars at home and abroad. More and more scientific research workers invest a lot of time and energy to study various surface three-dimensional topography measurement technologies to meet the requirements of measurement. demand. [0003] Defects of existing technology: [0004] ...

AI Technical Summary

Problems solved by technology

However, in this paper, the filtering of the H value with a large error is not considered, and the centroid of the color image to be processed cannot be automatically extracted for calibration, the measurement accuracy is low, and the algorithm can only be applied to single-point color confocal measurement, not Applied to parallel color confocal measurement, low measurement efficiency

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