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Height measurement principle using laser triangulation is explained in this paper. Then ex-act height can be calculated from various parameters. When either laser or camera is at an angle, and there is object between laser and the surface, camera can sense change in height through image. In LASER triangulation, a LASER line pointed on a surface acts as the reference. Unless there is any relative reference for height or depth, it is very difficult to conceive the third di-mension. But when it comes to height of object or depths in object, mere 2D camera is not sufficient. If machine vision is used, then two dimensions of object are seen and can be measured. These mea-surements are done by automated systems or if require, few of them also have human involvement.Height measurement of objects is often a difficult task. For every part of product produced in industry, there are some specified measurements, failing to achieve which, may cause product to lose its usefulness and hence value. Keywords: Laser triangulation machine vision height measurement calibration.ġ INTRODUCTION MEASUREMENTS play a vital and inevitable role in Industries. Actual set of objects are measured and readings are compared with respect to error and standard deviation. This system enables the sensor to cover considerably large working range with more precision. In this regard, a piecewise linear calibration system is proposed in this paper. Still due to nonlinearities present in camera and laser sensor, it is difficult to apply this principle universally for large range of heights. Laser triangulation has brought a new era in measurement enabling measurement in third dimension. M.S.Panse, Hemant Apte MTech Research Scholar, Electrical Engineering Department,Veermata Jijabai Technological Institute (VJTI), Mumbai, India Professor Electrical Engineering Department,Veermata Jijabai Technological Institute (VJTI), Mumbai, India Managing director, Univision Softech Pvt Ltd., Mumbai, India, , ABSTRACT: Machine vision has been adopted in numerous industries since it eliminates need of human involvement and provides considerable accuracy along with splendid speed. INTERNATIONAL JOURNAL OF TECHNOLOGY ENHANCEMENTS AND EMERGING ENGINEERING RESEARCH, VOL 3, ISSUE 04 27 ISSN 2347-4289Ĭalibration Method For Height Measurement Of Object Using Laser Triangulation