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 60 for “"Image capture"”.
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Multi-spectrum field-use image capture & analysis and the RIBG image filter
… makes it possible to begin to explore the capture of information illuminated by spectrums outside the visible range. It is proposed that the RIBG image filter, where I is infrared in the 700nm - 1000nm range, replace the traditional Bayer pattern. This thesis introduces I-Blending for the …
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Scalable multi-view stereo camera array for real world real-time image capture and three-dimensional displays
… digital CMOS cameras to explore a multi- image capture paradigm and the gathering of real world real-time data of active and static scenes. The capturing system can be developed and employed for a wide range of applications such as portrait-based images for multi-view facial recognition …
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The design and implementation of an image processing system
Three of the branches of image processing are touched upon herein: image capture, enhancement and display. Image capture here means 'the making available of an image for further processes to be carried out on it'. This is accomplished by the set of general purpose interrelated I/O and file handling …
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Robust Feature Extraction and Temporal Analysis for Partial Fingerprint Identification
… it is not always possible to obtain high-quality image samples. Latent prints, which are lifted from a surface, are typically of low quality and low fingerprint surface area. As a result, the overlapping region in which to find corresponding features in the genuine matching ten-print is reduced; …
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3D imaging in forensic odontology
This work describes the investigation of a new 3D capture method for acquisition and subsequent forensic analysis of bite mark injuries on human skin. When documenting bite marks with standard 2D cameras, errors in photographic technique can occur if best practice is not followed. Subsequent …
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A camcorder-based rapid mapping system
… into the potential of off-the-shelf camcorder imagery for rapid mapping. Video technology was chosen as it has the advantage of continuous image capture, enabling quick acquisition times in environments where access may be limited. Video imagery is also very low cost compared to metric …
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Scalable Predictive Coding Using Coset Codes
The proliferation of digital image capture devices and the Internet have fueled a tremendous amount of research in the fields of multimedia signal processing and multimedia communication over the last decade. This dissertation addresses the problem of compression and communication of multimedia …
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User-interface design and evaluation in a mobile application for detecting latent tuberculosis
… usability limitations included: the complex image capture protocol, misunderstanding of instructions, and time taken to capture images. Engagement with students allowed for improvement of the app interface and enabled adequate preparation for testing in the field with end-users. Furthermore, …
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VLSI implementation of a massively parallel wavelet based zerotree coder for the intelligent pixel array
… is a novel concept that integrates a parallel image capture mechanism, a parallel processing component and a parallel display component into a single chip solution geared toward mobile communications environments, be it a PDA based system or the video communicator wristwatch portrayed in "Dick …
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Towards vision based robots for monitoring built environments
… we focus specifically on improving autonomous image collection, building 3D models from the images, and recognizing materials for progress monitoring using the images and 3D models. Image capture can be done manually, but the process is tedious and better suited for autonomous robots. Robots …
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Stereo vision and mapping with unsynchronized cameras
… details of the map. It addresses the problems of image capture, signal noise, and three dimensional map storage. It extends existing real-time stereo mapping systems by tolerating unsynchronized stereo cameras. Results indicate that synchronization allows the system to locate points significantly …
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Vision-Aided Navigation for Autonomous Vehicles Using Tracked Feature Points
… using an inertial measurement unit (IMU) and an image capture device (camera) mounted on a ground robot and a quadrotor UAV. The vision-aided navigation algorithms are implemented on data-collected from sensors on an unmanned ground vehicle and a quadrotor, and the results are validated by …
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BiDi screen : depth and lighting aware interaction and display
… BiDirectional (BiDi) screen, capable of both image capture and display, is inspired by emerging LCDs that use embedded optical sensors to detect multiple points of direct contact. The key contribution of this thesis is to exploit the spatial light modulation capability of LCDs to allow dynamic …
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Holographic television : measuring visual performance with holographic and other 3D television technologies
… of us. All existing technologies that reproduce images perform engineering tradeoffs that provide the viewer with some subset of the visual information that would be available in person, in exchange for cost, convenience, or practicality. For many viewing tasks, incomplete reproductions go …
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Acoustic Particle-Image Velocimetry: development and applications
Particle Image Velocimetry (PIV) is a non-intrusive technique for simultaneously measuring the velocities at many points in a fluid flow. The fluid is seeded with tracer particles and the region under investigation is illuminated. An image of the illuminated region is captured and then, a short …
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Mobile phone-based evaluation of talent tuberculosis infection
… application developed on the Android platform to capture images of an induration, and photogrammetric reconstruction using Agisoft PhotoScan to reconstruct the induration in 3D, followed by 3D measurement of the induration with the aid of Python functions. The screening accuracy of the developed …
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Biaxial Response of Individual Bonds in Thermomechanically Bonded Nonwoven Fabrics
… equi-biaxial tensile testing and simultaneous image capture, the mechanical response of individual bonds was studied through loading in the preferential fiber direction, the machine direction, and in the direction that is perpendicular, the cross direction, of the fabric web. Independent …
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Feasibility of active vision for inspection of continuous concrete pipes.
… remote system to a PC-based system supporting image capture and analysis.The software associated with the AVS comprises modules to control the camera orientation and supplement existing Artificial Intelligence vision analysis tools. The latter modules estimate the vanishing point (VP) of a …
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Integrated Smartphone-Based Computer Vision and Machine Learning Platform for Identification of Surgical Site Infections
… to help detect SSI using a smartphone camera image. This mobile application includes four main components: (1) a computer vision image capture algorithm with automated image scaling, cropping and rotation; (2) automated image quality assessment to provide real-time feedback to the CHW; (3) an …
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