Despite dramatic changes in software development in the two decades since the term software engineering was coined, software quality deficiencies and cost overruns continue to afflict the software industry. Inspections, developed at IBM by Fagan in the early 1970s [1], can be used to improve upon these problems because they allow the detection and removal of defects after each phase of the soft...

This paper identifies baseline procedures for verifying software for individual, small team, and large team development efforts for mission-critical and non-mission-critical software. It is based on defect-based inspections and basis path testing. Basis path testing provides a unified approach for performing unit, integration, and functional tests, whereas defect-based inspections are primarily...

Fabric defect detection algorithm based on local neighborhood is proposed to improve the accuracy and real-time of Fabric defect detection. A local neighborhood window moves over the entire inspection image. For homogeneity measurethe coefficient of variation is used. A defect-free region will generate a smaller value of Variation Coefficient than that of a defective region. To extract and segm...

Two methods are proposed in this paper to inspect printed fabrics. One method is to apply a genetic algorithm to select parameters of optimal Gabor filter. Optimal Gabor filter can reduce the noise information of printed fabrics, which can achieve defect detection of printed fabrics. The other is in utilizing distance matching function to determine the unit of printed fabrics. Extracting featur...

Automated optical inspection systems are frequently utilized to sort out defective objects. However, those objects might actually be reworked or disposed. The combination of defect detection and specific processing in a single operation helps to reduce reworking time and waste. Defect detection on 3D objects is approached by combining the techniques of surface detection and geometry estimation....

The problem of defect detection in 2D and 3D shapes is analyzed. A shape is represented by a set of its contour, or surface, points. Mathematically, the problem is formulated as a speciic matching of two sets of points, a reference one and a measured one. Modiied Hausdorr distance between these two point sets is used to induce the matching. Based on a distance transform, a 2D algorithm is propo...

Tactile inspection is a task for detecting minute irregularities of several tens of micrometers and is one of the tasks performed by human senses. However, the detection of defects in tactile inspection has not been evaluated quantitatively. Therefore, this study aims to examine the factors that affect the detection of defects in tactile inspection by focusing on the haptic perception with acti...

In this paper, we propose an anisotropic diffusion scheme to detect defects in low-contrast surface images and, especially, aim at glass substrates used in TFT-LCDs (Thin Film Transistor-Liquid Crystal Displays). In a sensed image of glass substrate, the gray levels of defects and background are hardly distinguishable and result in a low-contrast image. Therefore, thresholding and edge detectio...