Wood quality assessment is an important issue in the pulp and paper industry. In this paper an automatic visual inspection system for wood structural quality measurement is described. To improve statistical image segmentation a new logarithm based global contrast enhancement technique is described. Region identification and reconstruction is performed based on local morphological operators with...

We address a perception framework for antellagent inspection and reverse engineering in this work. In particular, we investigate the use of discrete event dynamic systems (DEDS) to guide the sensing of mechanical parts. We introduce dynamic recursive finite state machines (DRFSM) as a new DEDS tool for utilzzing the recursive nature of the mechanical parts under constderation. The proposed fram...

Printed circuit board layout inspection methods are mostly based on local geometric information, therefor they are well suited to the CNN paradigm. Here the detection of two layout errors is considered namely, the breaks in the wires and some kind of short circuits. The designed analogic algorithms to solve the problems above were tested on real life examples using an experimental system based ...

Gas, oil and other pipelines need to be inspected for corrosion and other defects at regular intervals. For this application Pipetronix GmbH (PTX) Karlsruhe has developed a special ultrasonic based probe. Based on the recorded wall thicknesses of this so called pipe pig the Research center for computer science (FZI) has developed in cooperation with PTX an automatic inspection system called Neu...

In this paper, we designed the image processing algorithm, which inspects fault of the parts using morphology operator. Input is images of parts and process image registration, and then calculates binary erosion and dilation operator. Compared dilation values and separate into good or error parts of the automobile. The performance of the designed image processing algorithm was verified by perfo...

An automatic visual inspection system for the Tape Carrier Package (TCP) has been developed. To achieve low cost implementation and high speed inspection, we integrated unique image processing (0.7secldevice) to screen TCP devices which appear to be defective, with multiple illuminations to enhance defect images and a human interface for operators to finally judge the quality of the TCP. The op...

In this paper, we propose an automated visual inspection method for casting defects. Automatic inspection systems have the potential to significantly improve quality and increase production rates. In our method, the contour discontinuity of casting product and machine-learning-based defect detection are utilized to detect defects on the surface of products. The peripheral vision and involuntary...

This paper introduces a hierarchical optimization algorithm to an open NP-hard 3D guarding problem for massive data sets. The proposed hierarchical integer linear programming (HILP) algorithm can find the fewest spots necessary to cover an entire given 3D region. Efficiently solving this problem can greatly benefit autonomous pipeline monitoring and inspections. Unlike most existing pipeline in...

The mismatched pins inspection of the complex aviation connector is a critical process to ensure correct wiring harness assembly, which existing manual operation error-prone and time-consuming. Aiming fill this gap, article proposes an augmented reality (AR)-assisted deep learning-based approach tackle three major challenges in inspection, including small detection, multipins sequencing, visual...