Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Automatic inspection"”.
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Implementation of automatic inspection system
Inspection is the formal examination of a product manufactured by any manufacturing process. Inspection process is critical to all the industries as it ensures that a good quality product reach at the end customers. In order to ensure minimum variation in the quality of inspection of a product, …
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Locating SMD's for automatic inspection
… of several of the problems involved in the inspection of SMD’s (Surface Mount Devices) and to propose algorithms for their solution. First, a short introduction to the area of research and a motivation for this work is given. Second, the components of a vision system, its capabilities, and …
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Computer representations of machined parts for automatic inspection
… problems that might be associated with an automatic inspection system. The results show that the irregular decomposition is independent of object position and can provide a more space efficient encoding for certain shapes. However, detecting intersections between R-trees requires an …
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Deep CNN and MLP-based vision systems for algae detection in automatic inspection of underwater pipelines
… in data sets. This work describes a vision inspection system based on deep learning and computer vision algorithms for detection of algae in underwater pipelines. The proposed algorithm comprises a CNN or a MLP network, followed by a post-processing stage operating in spatial and temporal …
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Visual Understanding of Hybrid Circuits via Procedural Models: An Approach to Automatic Inspection of Hybrid Circuits
Made available in DSpace on 2014-12-12T20:54:12Z (GMT). No. of bitstreams: 1 7524408.pdf: 5803201 bytes, checksum: 19eeae58595e41f38a37da6d9b2483b2 (MD5) Previous issue date: 1975
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Real-time automatic machine inspection of plastic bottle closures
This thesis presents work done developing an automatic system for plastic bottle closures. These plastic closures ae manufactured at 20 per second and the inspection must be done in real-time at this rate. Two types of defects must be detected and the defective closures removed from the production …
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Design and development of a placement mechanism for an automated packaging machine
… a layer of robustness to the process through automatic inspection and recording. An explanation of antecedent packaging procedure along with industry priorities are reported along with the methodology behind the mechanical design that went into creating the mechanism. The constructed packaging …
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Classification of underwater pipeline events using deep convolutional neural networks
Automatic inspection of underwater pipelines has been a task of growing importance for the detection of four different types of events: inner coating exposure, presence of algae, flanges and concrete blankets. Such inspections might benefit of machine learning techniques in order to accurately …
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In-situ backplane inspection of fiber optic ferrules
… provides a framework and method for in-situ automatic inspection of backplane optical connectors. We develop an inspection system that fits into the envelope of a single daughter card, moves a custom microscope objective in three degrees of freedom to image the connector endfaces, and detects …
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Flexible in-pipe leak detection sensor module design and fabrication
… have imposed strict laws with an increase in inspection regulation requirements. Large size networks make manual inspection of an entire complex system almost impossible. The need for autonomous automatic inspection systems is evident. A robust autonomous in-pipe leak detection robot was …
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Synthetic Data Generation and Sampling for Online Training of DNN in Manufacturing Supervised Learning Problems
… manufacturing applications, such as AI-enabled automatic inspection, quality modeling, etc. However, there is a lack of performance guarantee of DNN models primarily due to data class imbalance, shifting distribution, multi-modality variables (e.g., time series and images) in training and …
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A Multiple Sensors Approach to Wood Defect Detection
… cutting the lumber into rough parts. This human inspection process is laborious, inconsistent and subjective in nature due to the demands of making decisions very rapidly in a noisy and tiring environment. Hence, an automatic sawing system that could remove defects in lumber while creating …
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Deep Learning Based Salient Object Detection for the Detection of Stains and Holes on Patterned Laundry
… look at washing laundry flat and thus allow its automatic inspection. In this context, the doctoral thesis at hand investigates the use of transfer learning with deep learning methods for salient object detection to detect defects on patterned laundry. To this end, a custom dataset of images of …
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A feasibility study on using CT image analysis for hardwood log inspection
… not been a systematic approach toward making the automatic inspection of logs a practical reality. This dissertation describes work aimed at creating a viable automated technology for locating and identifying log defects. The imaging modality used in this dissertation is CT. An important first …
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Unmanned Aerial Vehicle (UAV) navigation and image processing techniques for underground tunnel infrastructure assessment
… tunnel infrastructure networks require regular inspection and maintenance to ensure the safety and serviceability of lifeline transportation systems. Large-scale underground infrastructure comprises twin tunnel cross passages, shafts, caverns, and other complex geometries, which poses great …
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Análisis de texturas mediante el histograma de frecuencias de elementos conexo
… taken from the real world that can be analyzed automatically without segmenting the texture elements present in the corresponding digital images. Focusing on the automatic quality inspection of industrial products, the results attained in the segmentation phase are critical for the performance …