In order to improve the precision of vision inspection system for micro accessory, edge detection technique of micro accessory was studied. Firstly, the imaging features of the micro accessory inspection system were analyzed. Fraunhofer diffraction happens, because the light wave is restricted by microscope. Secondly, optical characteristics of micro images were analyzed. The gray curve of the ...

Accurate analysis of plastic strain accumulation under stress-controlled cyclic loading is vital for numerous engineering applications. Typically, models ratcheting are calibrated against available experimental data. Since actual experiments not exactly accurate, one should check the identification protocols pathological dependencies on errors. In this paper, a step-by-step algorithm presented ...

The main objectives of multi-axis machining are to achieve perfect surface quality, precision, and speed without any need for re-machining. Within cutting processes, a strong integration of technologies such as virtual machining and inspection algorithms is important [1]. Closed Loop Machining (CLM) is an important method to maximise the efficiency of cutting processes, and automatic data colle...

Quality inspection is an indispensable part of modern industrial manufacturing. Steel as a major industry requires constant surveillance and supervision through its various stages of production. Continuous casting is a critical step in the steel manufacturing process in which molten steel is solidified into a semi-finished product called slab. Once the slab is released from the casting unit, th...

In this paper error sources existing in the on-line inspection system for numerical control machines are analyzed. A mathematical model of the geometric errors of a three-axis machining center is created and the pretravel variations are obtained in different directions. Then an error compensation is applied to improve the accuracy of the on-line inspection system. A methodology of spatial stati...

A major problem in noisy image processing is the segmentation of its components. Many computer vision tasks analyze regions after segmenting a given image, then minimize the segmentation error to build a good automatic inspection system. In this paper, we propose a novel segmentation scheme for noisy images which consists of a new denoising method and a modified active contour model. The method...

This paper presents the author’s recommended practices for spreadsheet testing. Documented spreadsheet error rates are unacceptable in corporations today. Although improvements are needed throughout the systems development life cycle, credible improvement programs must include comprehensive testing. Several forms of testing are possible, but logic inspection is recommended for module testing. L...