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 20 of 213 for “"Vision System"”.
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Multiresolution fixation of a binocular vision system
… to deal with low-contrast image regions, the system is capable of detecting nearby salient points and shifting attention to a new salient target. Based on local image information, the system adaptively determines an initial window size using an Autoregressive-Moving Average (ARMA) modeling …
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Machine vision system developments for industrial inspection applications
… of automated industrial inspection using machine vision systems. It is anticipated that the algorithms described will contribute to the design of a machine vision system for the automatic surface inspection of cylindrical pellets. Firstly, the acquisition and segmentation of pellet tray images …
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Vision system parameter selection for flexible materials handling
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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A stereo vision system with automatic brightness adaptation
… of an automatic brightness adaptive imaging system for use in stereo vision algorithms implemented for a variety of processing architectures. A 256 x 256 array of wide dynamic range pixels with on-chip A/D converters provides the digital data path for a feedback network which controls the …
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Aircraft Detection and Tracking Using UAV-Mounted Vision System
… of light weight and low power. For the visual system to work well, it is required that the camera-based sensing capability should be at the level equal to or exceeding that of human pilots.</p> <p>This thesis deals with two basic issues/challenges of the camera-based sensing of flying objects. …
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Modelling of bio-inspired vision system for velocity estimation.
… results obtained from the fly visual system using similar stimuli in each case. A modified Reichardt model is shown to give a more similar response to that of fly neurons. In order to improve velocity performance of the Reichardt model, it is necessary to reduce contrast dependance of …
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A motion vision system for a Martian Micro-Rover
This thesis describes a monocular, motion vision system that was designed to meet the size, power, and processing constraints of a small, robotic, planetary explorer. The computational requirements of the brightness gradient approach, which is commonly used in motion vision systems, were found to …
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Construction of a machine vision system for autonomous applications
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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A machine vision system for classifying rectangular cabinet frames
This thesis describes a machine vision solution to an industrial classification task. The specific problem is the identification of kitchen cabinet frames that travel on a conveyor belt. For these components, it is possible to acquire silhouette images and perform two dimensional image analysis. …
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Implementation of stereo correspondence algorithms for multi-baseline vision system
… This problem is solved by using a multi-camera system is used in which the cameras are spaced close to each other along a straight line. Calculating the correspondence along successive camera pairs is relatively easy. These respondences are later propagated to the pairs with larger baselines. …
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3D machine vision system for robotic weeding and plant phenotyping
… growing global population. An autonomous weeding system should be capable of differentiating crop plants and weeds to avoid contaminating crops with herbicide or damaging them with mechanical tools. For the plant genetics industry, automated high-throughput phenotyping technology is critical to …
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A three dimensional vision system for industrial surface topography measurement
… based Surface Topography Measurement (STM) system. The particular system investigated produces a series of three dimensional coordinates of points on a target surface which has been placed in front of the STM system. It is designed for use at long ranges (5m - 20m initially) and onto rough …
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A knowledge-based machine vision system for grain quality inspection
A knowledge-based machine vision system was developed for automatic corn quality inspection. This system consisted of a primitive feature extraction algorithm, several quality-related feature extraction algorithms, and several knowledge-based corn quality inspection algorithms. The feature …
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Occupational Factors Affecting the Accommodative Response in the Human Vision System
Accommodative microfluctuations (AMFs) are temporal variations in the accommodative response. AMFs can be divided into two categories, the low frequency component (LFC) measuring below 0.6 Hz and the high frequency component (HFC) measuring between 1.0 and 2.3 Hz. This thesis examined occupational …
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Occupational Factors Affecting the Accommodative Response in the Human Vision System
Accommodative microfluctuations (AMFs) are temporal variations in the accommodative response. AMFs can be divided into two categories, the low frequency component (LFC) measuring below 0.6 Hz and the high frequency component (HFC) measuring between 1.0 and 2.3 Hz. This thesis examined occupational …
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Intelligent Vision System for the Detection of Protozoa on Microscope Slides
… tested. Overall, the correspondence between the system and expert suggested a strong relationship to classifications of unknown objects.
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A low-cost hybrid vision system for intelligent cruise control applications
… control has been integrated into automotive systems. A natural extension of this trend is full intelligent and autonomous control of vehicle by onboard computer systems. This thesis presents the design, development, and construction of a low-cost, low-power vision system suitable for on-board …
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A knowledge-based machine vision system for automated industrial web inspection
Most current machine vision systems for industrial inspection were developed with one specific task in mind. Due to the requirement for real-time operation, these systems are typically implemented in special purpose hardware that performs very specific operations. Hence, these systems inflexible in …
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Development of an inexpensive computer vision system for grading oyster meats
… was digital imaging. Typically, a computer vision system contains a microcomputer and a digital camera. An inexpensive digital camera connected to a personal computer was used to measure the projected area of the oyster meats. Physical characteristics of the oyster meats were important in …
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