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 989 for “"Pixel"”.
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Pixel; Ghost
<p>Pixel; Ghost is an exhibition of video and sound installations that explore the creation, change, and degradation of memory, transitional states of mind, and family. The pieces are structured around cinematic clichés such as dream sequences, flashbacks and establishing shots, using them as a …
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Towards Integrated Pixel Modelling
… and efficient characterisation of the sensitive pixel (feed, cavity, and absorber) structures of future far-infrared instruments. Contemporary waveguide technologies increasingly rely on the exploitation of multi-moded behaviour and operation in higher frequency bands. In these scenarios a more …
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Multi-pixel charge sharing energy reconstruction (MCSER) algorithm with application in small-pixel semiconductor detectors
Small-pixel CdTe/CZT semiconductor detectors have shown great potential in medical imaging. However, most of current CZT detectors used in medical imaging applications still suffer serious performance degradation partially due to incomplete charge-collection. In this paper, we discuss a multi-pixel …
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A differential passive pixel image sensor
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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CMOS passive pixel image design techniques
… imagers with high levels of integration. Two pixel configurations are possible in CMOS technology: active and passive. The active pixel requires a minimum of three transistors to convert light to voltage. The passive pixel, on the other hand, consists of a single transistor, and its output is …
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Active pixel sensors for X-ray astronomy
An active pixel sensor array, APS-1, has been fabricated for the purpose of scientific x-ray detection. This thesis presents the results of testing the device. Alternate design architectures are explored. Recommendations are made for a next-generation sensor. CCDs have been the dominant x-ray …
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Robustness To Visual Perturbations In Pixel-Based Tasks
… inputs for decision-making, such as through pixel-based Reinforcement Learning (RL) where an agent must learn a policy leveraging images of the environment as input. RL agents under these settings can perform well in training, but once deployed may face unseen visual perturbation, causing an …
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O problema do pixel mistura: um estudo comparativo
… vezes, no interior de uma célula de resolução (pixel) mais de uma classe ocorre. Este caso é conhecido como pixel mistura. Na classificação de imagens obtidas por sensoriamento remoto é comum a utilização de metodologias que atribuem somente uma classe a um pixel, como o procedimento clássico da …
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Pixel-level video understanding with efficient deep models
The ability to understand videos at the level of pixels plays a key role in a wide range of computer vision applications. For example, a robot or autonomous vehicle relies on classifying each pixel in the video stream into semantic categories to holistically understand the surrounding environment, …
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A sparse coding approach to multiclass pixel labelling
… thesis, we introduce a method for multiclass pixel labelling to facilitate scene understanding and semantic segmentation. Specifically, we focus on enforcing label consistency in local image regions through sparse modelling of image data. Individual pixels in an image may be assigned a label …
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A sparse coding approach to multiclass pixel labelling
… thesis, we introduce a method for multiclass pixel labelling to facilitate scene understanding and semantic segmentation. Specifically, we focus on enforcing label consistency in local image regions through sparse modelling of image data. Individual pixels in an image may be assigned a label …
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A pixel-parallel architecture for graph cuts inference
… task to find a most likely label for each pixel. The method is thus widely used, but computation- ally burdensome given the need to run iterative network flow computations on every pixel of an image. Prior accelerator attempts, on either GPU or FPGA, have failed to exploit the problem’s …
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A photon counting pixel detector for x-ray imaging
Hybrid semiconductor pixel detector technology is presented in this thesis as an alternative to current imaging systems in medical imaging and synchrotron radiation applications. The technology has been developed from research performed in High Energy Physics, in particular, for the ATLAS …
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Characterization of a polarization dynamic active pixel vision sensor
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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An integrated computing structure for pixel-parallel image processing
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Constant Amplitude Zero Autocorrelation Sequences and Single Pixel Camera Imaging
… In particular, we present results in single-pixel camera imaging and the demosaicing problem in image processing.
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