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.
Results
Showing 1 to 20 of 336 for “"Low-Resolution"”.
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Pedestrian detection in low-resolution videos
… address the problem of detecting pedestrians in low-resolution videos taken by stationary cameras and cameras mounted on aerial platforms. The target pedestrians are as small as 20 pixels in height. Pedestrian detection is a key problem in computer vision, and has several applications such as …
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Content-based indexing of low resolution documents
… devices include cameras or mobiles phones have low resolution resulted from poor lighting and noise. Content-Based Image Retrieval (CBIR) is considered among the most interesting and promising fields as far as image search is concerned. Image search is related with finding images that are …
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Bug vision : experiments in low resolution vision
Tracking multiple people using cameras is similar to the well-studied problem of tracking multiple radar or sonar echoes. This thesis shows that current camera-based tracking algorithms convert each image in a video sequence to a list of targets through a segmentation step, and pass this target set …
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Super-resolution image reconstruction from low-resolution images
… thesis addresses the problem of obtaining high-resolution image from a set of one or more low-resolution images. The thesis focused on three building blocks of super-resolution algorithms i.e., image registration for super-resolution, image fusion for super-resolution and super-resolution image …
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Automated isotope identification algorithms for low-resolution gamma spectrometers
… Most of these deployed detectors use low-resolution NaI scintillators due to their low cost and good efficiency. Alternative detection hardware could be used to improve performance, but better detectors are generally cost-prohibitive for wide deployment in this mission space. However, …
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Detection of micro-aneurysms in low-resolution color retinal images
… micro-aneurysms and small round hemorrhages in low-resolution color retinal images. Our algorithm is adapted from a micro-aneurysm detector developed for high-resolution angiographic films. It consists of pre-processing, morphological filtering, thresholding, region growing and feature analysis. …
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HeadLock : wide-range head pose estimation for low resolution video
… to extract head pose information from low resolution video recordings. Head pose, as an approximation of gaze direction, is a key indicator of human behavior and interaction. Extracting head pose information from video recordings is a labor intensive endeavor that severely limits the …
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Optimizing communication performance of low-resolution ADC systems with hybrid beamforming
Low-resolution analog-to-digital converter (ADC) systems and hybrid analog-and-digital beamforming systems have drawn extensive attention as a promising receiver architecture for millimeter wave (mmWave) communications by reducing hardware cost and power consumption. In this dissertation, hybrid …
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Efficient, Accurate, and Flexible PIM Inference through Adaptable Low-Resolution Arithmetic
… do so by changing DNN weights or by using low-resolution ADCs that reduce output fidelity. These approaches harm DNN accuracy and/or require costly DNN retraining to compensate. To address these issues, this thesis explores tradeoffs around ADC area/energy and develops optimizations that …
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Low resolution ultra-violet spectra of symbiotic stars. Developments over thirteen years
Consideration is made of 651 low resolution ultra-violet spectra of 19 symbiotic stars obtained from the archives of the 1TIE Space Observatory. A classification is made of these stars by considering the stability of the ratio of flux intensities of selected high energy emission lines from them. …
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The Potential of a Low Resolution Digital Camera in Close-Range Photogrammetry
… results of this investigation demonstrated that low resolution digital array cameras could be used to achieve a mapping accuracy comparable to that of conventional 35mm cameras. The study showed that the basic technology exists for development of a totally automatic mapping system.
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Automated wavelet analysis of low resolution gamma-ray spectra and peak area uncertainty
… of automated isotope identification from low resolution gamma-ray spectra can be significantly improved with better algorithms. The method based on the wavelet transform and non-negative least squares (NNLS) are discussed in this thesis. Several improvements are made for the wavelet …
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Modeling, identification and control of a quad-rotor drone using low-resolution sensing
… was conducted thoroughly including its low-resolution on-board sensors, such as rate gyro and altimeter. Control targets are composed of two stages --- local references following and global position tracking. PID algorithm is used by both controllers with various filters designs, such as …
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Real-Time Low-Resolution Face Recognition using Local Binary Pattern Histograms, Eigenface, and Fisherface Algorithms
… of decades. Changes in illumination, image resolutions, the variation of light and posture of the face are still significant problems in face recognition. This research presents an improved real-time face recognition system at low-resolution of 15 pixels (px) with the pose, emotion, and …
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Emergent information from low-resolution representations. Methods and applications from protein simulations to artificial neural networks.
… arise are how the informational content of a low-resolution description should be quantified; under what conditions informative reduced representations can be identified without supervision; and to what extent common organising principles can be recognised across systems of different …
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Low Resolution ab initio Phasing Method by Modification of Density and Phase in Real and Reciprocal Space
… identity homologous model. In this thesis, a low resolution ab initio phasing method is proposed. A large number of trial phases value and their corresponding high density masks are generated and modified alternately in reciprocal and real space. Then, the output phase sets are averaged to …
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