Automated Visual Inspection System

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Automated Visual Inspection System for Specifying Brick Quality

Automated Visual Inspection System for Specifying Brick Quality

Various studies related to machine vision inspection and sorting have been reported in literature. FU Cheng and Young Bin Zhang developed a system for sorting mechanical part by calculating circularity and area [1]. Akbar H and Prabuwono developed an automated visual inspection system for press parts sorting based on CMOS- Web camera in a production line simulation [2]. J. C. No- ordam, G. W. Otten, A. J. M. Timmermans and B. H. van Zwol developed an automated inspection station for ma- chine vision grading of potatoes, potatoes classified by size, weight, cross-sectional diameter, shape, and color [3]. José Blasco, Nuria Aleixos, Sergio Cubero, Flor- entino Juste, Juan Gómez-Sanchis, Vicente Alegre and En- rique Moltó developed an automatic inspection system of fresh and processed fruits [4]. Tadhg Brosnan and Da-
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Advanced Automated Visual Inspection System of Colored Wires in Electric Cables Syed Sultan Mahmood, C. Altaf, V. Shiva Naga Malleswara Rao, M. Shashidhar, K. Manoj, R. Sriram Pranav

Advanced Automated Visual Inspection System of Colored Wires in Electric Cables Syed Sultan Mahmood, C. Altaf, V. Shiva Naga Malleswara Rao, M. Shashidhar, K. Manoj, R. Sriram Pranav

E Embedded can be defined as the processing or altering an existing in a desired manner. Which performs automatic processing, manipulation and interpretation of visual information, and it plays an increasingly important role in our daily life. Also it is applied in a variety of disciplines and fields in science and technology. Some of the applications are television, photography, robotics, remote sensing, medical diagnosis and industrial inspection. Probably the most powerful processing system is the human brain together with the eye. The system receives, enhances and stores color at enormous rates of speed.
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Inspection and Classification of Defects in Pharmaceutical Capsules Using Neural Network Abha Sharma 1Sugandha Arora2

Inspection and Classification of Defects in Pharmaceutical Capsules Using Neural Network Abha Sharma 1Sugandha Arora2

These defects can sometimes cause very serious problem. For example if the defect is in the form of hole or crack, it is possible that the capsule filling will spill out and will have unsafe effects if it reaches the end -user. Detection of defects is necessary to protect the consumer from many hazardous impacts. To do the same we need to regulate our inspection system. As still there are many manufacturing companies which do not use automated inspection system as shown in figure - 2. Detection of defects will not only benefit the consumer but also help the pharmaceutical industry to raise the standard of production. Automated visual inspection system is solution to this problem.
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Title: AUTOMATED VISUAL INSPECTION OF RAILROAD TRACK

Title: AUTOMATED VISUAL INSPECTION OF RAILROAD TRACK

vibration based method our device will do calibration of the rail track by using vibration sensors. Vibration sensors will feel the vibration on the track. If the track vibration are in the range of predefined grade values it means there is no faults otherwise track is defected. Damage content and faulty track details will broadcast to the server through wireless media i.e. (wifi). By using both the techniques we can investigate the railway track in appropriately. Our propose system aims on visual based and vibration based techniques to detect irregularities in track and default contents such as tie, tie plate, anchor, missing bars. Investigated data will be saved in digital format that’s why supervision of track component condition is possible by data processing. In this way our propose mechanism will perform a function of automatic inspection of track content and calibration of track and it provides an interim improvements to current track inspection practices.
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A Review on Fabric Defect Detection Techniques

A Review on Fabric Defect Detection Techniques

It has been observed [2] that price of the textile fabric is reduced by 45% to 65% due to defects. Manual defect detection in a fabric quality control system is a difficult task to be performed by inspectors. The work of an observer is very tedious and time consuming. They have to detect small details that can be located in a wide area that is moving through their visual field. The identification rate is only about 70% [3]. Moreover, the effectiveness of visual inspection decreases earlier with the fatigue. Digital image processing techniques have been increasingly applied to textured sample analysis over the past several years. Nickoloy et al. [4] have shown that the investment in the automated fabric inspection is economically attractive when reduction in the personnel cost and associated benefits are considered. Textile quality control involves, among other
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Automated in-core image generation from video to aid visual inspection of nuclear power plant cores

Automated in-core image generation from video to aid visual inspection of nuclear power plant cores

This paper introduces a novel technique for creating full 360° panorama images of the inside surface of fuel channels from in-core inspection footage. Through the development of this technique, a number of technical challenges associated with the constraints of using existing equipment have been addressed. These include: the inability to calibrate the camera specifically for image stitching; dealing with additional data not relevant to the panorama construction; dealing with noisy images; and generalising the approach to work with two different capture devices deployed at seven different Advanced Gas Cooled Reactor nuclear power plants. The resulting data processing system is currently under formal assessment with a view to replacing the existing manual assembly of in-core defect montages. Deployment of the system will result in significant time savings on the critical outage path for the plant operator and will result in improved visualisation of the surface of the inside of fuel channels, far beyond that which can be gained from manually analysing the raw video footage as is done at present.
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Automated optical inspection system for digital TV sets

Automated optical inspection system for digital TV sets

The proposed system is used to automate the verifica- tion step on the final production line of digital TV sets. To the best of our knowledge, the verification step on the final production is mostly performed manually, by a human observing the TV screen. The TVs which are being tested are coming on a production line and pas- sing through several test stations. Each station tests a particular part of the TV system, e.g., component mount control, High-Definition Multimedia Interface (HDMI) or SCART. Each station has a person working on it. The worker’s job is to select desired test sequences and detect faults on the TV screen by directly observing the TV screen and reporting if that particular TV passes or fails the tests. Since the current method of verification is manual, many subjective errors are possi- ble. Also, the speed of a manual verification system is slow. The worker needs to perform manual and visual check of the TV screen as well as to connect the TV set to a particular signal generator. The proposed system aims to eliminate the need for many human workers at the verification step on the final production line, aiming to automate the verification process. The time required for verification step decreased by a factor of 5 when using the proposed system on the final production line instead of a manual one [35].
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Automated Visual Software Inspection System: Re-Making the Fagan Methodology

Automated Visual Software Inspection System: Re-Making the Fagan Methodology

Abstract Software inspection is aimed at detecting error early during the software development process and improving the skills of developers. There are several inspection models for both large and small scale software projects but this paper recognised that they are mostly designed in and for developing countries; in addition it was observed that software inspection in small student groups in Nigeria institutions are based on the traditional, meeting-oriented approach. This therefore necessitated a need to formalize an inspection model suitable for small software projects executed by students in a typical university computer science laboratory. Based on extensive research and analysis, a visual software inspection model is proposed in this paper. This model matured into an inspection tool developed using the techniques of Structured Systems Analysis and Design Methodology (SSADM) and scripting tools. An experimental evaluation of the tool using five study criteria showed that the inspection model was a well-defined disciplined process for the analysis and monitoring of a software development process for a systematic detection of any deviation from the pre-defined specifications of the software system.
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On the Use of Discrete Wavelets in Implementing Defect Detection System for

On the Use of Discrete Wavelets in Implementing Defect Detection System for

Detection of defects in texture surfaces, such as steel plates, weldment, ceramic tiles, fabric, etc., is an important area of automated industrial inspection systems. Numerous methods and approaches have been proposed for performing this task [1-5]. With reference to many texture analysis survey papers, the texture image analysis techniques, used for visual defect inspection, can be categorized as follows: statistical approach, structural approach, filter-based approach and the model-based approach.

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Applications of Inductive Learning to Automated Visual Inspection

Applications of Inductive Learning to Automated Visual Inspection

A system that uses RULES3 induction algorithm has been developed for industrial visual inspection. The system uses RULES3 to extract the necessary set of rules and template matching technique for feature extraction. 20, 3x3 masks are used to represent an image (see Figure 1). Each example consists of 20 frequencies of each mask. The system was tested on five different types of tea or water cups in order to classify the good and bad items. It was trained using five good cups (see Figure 2) and then tested for 113 unseen examples. The results obtained showed the high performance of the system: the efficiency of the system for correctly classifying unseen examples was %100. The system can also decide what the type of the cup being processed is [12].
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Visual Inspection of Machined Metallic High Precision Surfaces

Visual Inspection of Machined Metallic High Precision Surfaces

In industry, there is an increasing demand for automatic sur- face inspection systems for quality control of final products. Thereby, image processing techniques play a crucial role in this growing field. The customer demands are well founded on the high costs of poor quality, with the resulting cost for correction. The human assessment of the product quality in repetitive tasks, for example, inspection of textiles, achieves a maximum reliability of only 80% [1]. Thus, replacing the human visual inspection with a fully automatic system will normally increase the accuracy of flaw detection and reduce costs. A survey of automated visual inspection can be found in [2]. Many papers of surface inspection on steel products have recently been published [3, 4], most of which concen- trate on flat objects.
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ASSOCIATION RULE MINING BASED VIDEO CLASSIFIER WITH LATE ACCEPTANCE HILL 
CLIMBING APPROACH

ASSOCIATION RULE MINING BASED VIDEO CLASSIFIER WITH LATE ACCEPTANCE HILL CLIMBING APPROACH

AVI system is a complicated system that affected by many factors. In fact, to let the AVI system achieve 100% accurate detection is impossible. Therefore, the evaluation of AVI system should be used as the target of optimization design. The extension evaluation method is widely used in evaluation areas, such as the architectural design innovation, enterprise’s independent innovation ability, urban traffic sustainable development, helicopter maintenance support capability and the scheme selection for engineering programs[1-5]. Bing Luo[6] studied the performance evaluation for AVI, proposed a improved ROC curve for multiple defect inspection. Junming Yang[7] studied the inspection and evaluation system of elevator control cabinet, developed a on-line inspection and evaluation system based on virtual instrument.
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DESIGN OF VISION BASED INSPECTION SYSTEM FOR WASHERS

DESIGN OF VISION BASED INSPECTION SYSTEM FOR WASHERS

After the manufacturing process, the washers get collected one by one on the conveyor. The washer while reaching the field of view of the camera, the controller triggers the camera to capture the image. The captured image is processed by image processor using the above explained image processing algorithm which results in the determination of washer material area from the complemented image. The determined area of the washer is compared with the reference value using „if-else‟ conditional statement. The washers within the reference range (36,000 to 40,000) will be allowed to pass through. If in case the controller detects a washer which fails to possess area within the reference range, the controller triggers the blower which results in the elimination of that particular washer from the conveyor. Further, the washer with lesser area than the reference can be eliminated from the main conveyor and can be collected in different conveyor. Similarly the washer with greater area can be eliminated and collected in another conveyor. Thus only the washers with acceptable dimensions will pass the inspection.
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Machining-based coverage path planning for automated structural inspection

Machining-based coverage path planning for automated structural inspection

Although sharing similarities to other industrial robotic application CPP strategies, automated inspection CPP is further challenging insofar that typical NDE applications require scanning of features that would normally be classed as obstacles in traditional robotics. This subtle distinction must be considered, as robotic positioning and path planning algorithms must not safely avoid such an object, by traditionally moving as far as possible away from the object, but carefully approach such objects to allow NDE sensors to be deployed with very precise sensor-surface stand-off distance control. Stand-off distance must be consistent, along or around such objects, while also being repeatable, to allow industry code compliant inspection strategies to be deployed at regular intervals. This latter point ensures operators are able to confidently monitor rate of change of inspected structures.
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EFFICIENT DEFECT DETECTION ALGORITHM FOR GRAY LEVEL DIGITAL IMAGES USING GABOR WAVELET FILTER AND GAUSSIAN FILTER

EFFICIENT DEFECT DETECTION ALGORITHM FOR GRAY LEVEL DIGITAL IMAGES USING GABOR WAVELET FILTER AND GAUSSIAN FILTER

Abstract: The Automated visual inspection systems are utilized effectively to identify the defects in various digital images in industries. In our research work we have used Gabor filter and Gaussian filter to eliminate the texture elements in the digital image by isolating the defected area. Then a fast searching algorithm which uses feature extraction parameters is deployed to identify the defected pixels and to effectively segment it. The proposed technique is suitable for texture and non texture images. Thus the Algorithm is used to identify the defects in the digital texture image using non texture methods.
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Visual inspection for the diagnosis of cutaneous melanoma in adults

Visual inspection for the diagnosis of cutaneous melanoma in adults

The diagnosis of melanoma can take place in primary, secondary, and tertiary care settings by both generalist and specialist healthcare providers. In the UK, people with concerns about a new or changing lesion will usually present first to their general practitioner or less commonly directly to a specialist in secondary care, which could include a dermatologist, plastic surgeon, general surgeon or other specialist surgeon (such as an ear, nose, and throat (ENT) specialist or maxillofacial surgeon), or ophthalmologist (Figure 2). Current UK guidelines recommend that all suspicious pigmented lesions presenting in primary care should be assessed by taking a clinical history and visual inspection using the seven-point checklist (MacKie 1990); lesions suspected to be melanoma should be referred urgently for appropriate specialist assessment within two weeks (Chao 2013; Marsden 2010; NICE 2015c; SIGN 2017). Teledermatology consultations can aid more appropriate triage of lesions into urgent referral; non-urgent secondary care referral (e.g. for suspected basal cell carcinoma); or where available, referral to an intermediate care setting, e.g. clinics run by GPs with a special interest in dermatology. The distinction between setting and examiner qualifications and experience is important as specialist clinicians might work in primary care settings (for example, in the UK, general practitioners (GPs) with a special interest in dermatology and skin surgery who have undergone appropriate training), and generalists might practice in secondary care settings (for example, plastic surgeons who do not specialise in skin cancer). The level of skill and experience in skin cancer diagnosis will vary for both generalist and specialist care providers and will also impact on test accuracy.
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Visual inspection : image sampling, algorithms and architectures

Visual inspection : image sampling, algorithms and architectures

Anatomically, behind the hexagonally packed retinal sensors arc a layer o f retinal ganglion cells which, in the centre of the retina, connect one to one with the sensors 1140). The ganglion cells can also be considered to be connected on a hexagonal grid. The 2.106 ganglion cells connect to the visual cortex which contains approximately 109 neurons. Physiological experiments have shown that between the retina and the visual brain, the image undergoes a sequence o f transformations. Sets o f cells in the cortex can be identified with these various transforms. Watson and Ahumada consider a transform performed by the ganglion cells and a subsequent one performed within the cortex. The ganglion cells transfer spatial and brightness information. Their transfer function is broad-band and they provide local adaptive gain control. The transform within the cortex is different. The cells are narrow-band and employ a so called hybrid space-frequency code to convey the position, spatial variation and orientation of a region. Watson and Ahumada model the process in this set o f cells by a structure, described below, which they refer to as a hexagonal orthogonal oriented quadrature pyramid. This is considered further here to indicate the complexity of the human visual system compared to current machine vision systems, and the necessity for the large number o f cells involved to process a wide range o f image types as they are presented in real-time to the hum an being. Real-time infers here that the images arc processed quickly enough for us to continue to function as we do. Some machines may be able to process specific visual information
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Grading and Quality Testing of Rice Granules Using Neural Network

Grading and Quality Testing of Rice Granules Using Neural Network

ABSTRACT : In the present grain-handling system, grain type and quality are identified manually by visual inspection which is tedious, time consuming and not accurate. There is need for the growth of fast, accurate and objective system for quality determination of food grains. An automatic evaluation method for the determination of the quality of rice granules and grain type identification is introduced using Probabilistic Neural Network. . A model of quality testing and identification is built which is based on geometric features and color features with technology of computer image processing and neural network. These features are presented to the neural network for training purposes. The trained network is then used to identify the unknown grain types and its quality. The grading of rice sample is done according to the size of the grain kernel and presence of impurities. This method gives good results in evaluation of rice quality. KEYWORDS-Rice quality, Grain Type Identification, Color Features, Geometric Features, PNN
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Automated evaluation of autoantibodies on human epithelial 2 cells as an approach to standardize cell based immunofluorescence tests

Automated evaluation of autoantibodies on human epithelial 2 cells as an approach to standardize cell based immunofluorescence tests

Until recently, reliable diagnostic tools for the auto- mated interpretation of cell-based IIF tests like ANA detection on HEp-2 cells have not been available for routine laboratories. However, the use of digital images of HEp-2 cell-based assays for diagnostic aims [32,33] and the superiority of automated in contrast to subjective pattern classification have already been demonstrated [34]. Thus, the objective of this study was the comparison of the current visual subjective interpretation of HEp-2 cell-based assays for ANA detection with results obtained by the first automated interpretation system. Since the detection of ANAs is employed as serological screening for patients with suspected rheumatic disorders on the one hand and is part of classification criteria of systemic rheumatic diseases on the other, two patient groups tested with differing laboratory background regarding experience in ANA detection and prevalence of disease were included in the study. Consecutive sera of both a uni- versity laboratory specialized in rheumatic disease diagnostics and a private referral laboratory covering hospitals and out-patient departments were included in the study.
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A study of visual inspection of cervix under acetic acid and visual inspection of cervix under Lugol's iodine for screening of carcinoma cervix

A study of visual inspection of cervix under acetic acid and visual inspection of cervix under Lugol's iodine for screening of carcinoma cervix

Background: Carcinoma cervix is the most common cancer among women in developing countries. The objectives of the study were to study the sensitivity and specificity of visual inspection of the cervix with acetic acid (VIA) and Lugol's iodine (VILI) for cervical cancer screening. To study the correlation of demographic data like age, socioeconomic status, education residential area, parity, age at marriage in premalignant lesion of the cervix.

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