Intelligent measuring system and method based on primitive configuration of to-be-measured workpiece
An intelligent measurement and primitive technology, applied in measurement devices, image data processing, instruments, etc., can solve the problem of not providing a variety of geometric primitive identification and detection solutions, to improve efficiency, improve detection efficiency, reduce previous effect of work
Active Publication Date: 2018-11-30
江苏中车数字科技有限公司
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However, this application only provides a method for detection and positioning of circular arc geometric primitives, and does not provide a scheme for identification and detection of multiple geometric primitives
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Embodiment 1
[0070] This embodiment provides a detection method that is not based on image template matching, but takes the primitive of the workpiece as the detection unit, first extracts the primitive of the workpiece to be tested, and then automatically recognizes the primitive type and calculates the rapid measurement scheme. The image data acquisition in the embodiment can acquire two-dimensional images through a CCD image acquisition platform, or acquire three-dimensional images through a laser scanner, and can be used for processing both two-dimensional images and three-dimensional images. In this embodiment, a laser scanner is used to obtain a three-dimensional image as an example for description. The primitive types include straight lines, curves, circles, ellipses, rectangles, arcs, etc.
[0071] like image 3 As shown, the intelligent measurement system based on the primitive configuration of the workpiece to be measured in this embodiment includes a host computer 1 , a laser s...
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The invention discloses an intelligent measuring system and method based on primitive configuration of a to-be-measured workpiece, and belongs to the field of machine vision detection and measurement.The intelligent measuring system is constituted by parts of a host, image collecting equipment, an X-axis direction motion device, a Y-axis direction motion device, a measuring platform and the like.Image data of the measured workpiece can be collected by a CCD camera or a laser scanner, and the intelligent measuring system can be used for two-dimensional data measuring and three-dimensional data measuring. The to-be-measured workpiece is placed on the measuring platform, after the system is started, image information of the workpiece is obtained through the image collecting equipment, primitives are extracted from an obtained image by an image processing module of the system, types of the primitives are identified automatically, parameter calculation is conducted, and meanwhile a measuring object library is generated. The shape primitives serve as a measuring module, the detecting efficiency is improved, dependence on priori knowledge is reduced, and universality and flexibility ofthe system are improved.
Description
technical field [0001] The invention relates to technologies such as image processing, machine vision, intelligent sensing and pattern recognition, and belongs to the field of machine vision detection and measurement. More specifically, it is a system and method for automatically measuring workpiece primitives (lines, curves, circles, ellipses, rectangles, arcs, etc.) to be measured as detection units. Background technique [0002] With the development of intelligent technology and the proposal of smart factories and unmanned factories, the automation level and scale of industrial manufacturing are getting higher and higher, and correspondingly higher requirements are put forward for industrial inspection. The traditional manual inspection method is time-consuming and laborious, and cannot meet the modern high-precision, batch-fast workpiece measurement and inspection requirements. At present, most of the existing non-contact detection methods need to pre-establish the temp...
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IPC IPC(8): G01B11/00G01B11/24G06T7/00G06T7/12G06T7/136G06T7/62
CPCG06T7/0004G06T7/12G06T7/136G06T7/62G01B11/00G01B11/24G06T2207/10004G06T2207/20081G06T2207/30164
Inventor 梅雪黄小龙刘欢
Owner 江苏中车数字科技有限公司