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 12 of 12 for “"Image encoding"”.
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The contour tree image encoding technique and file format
… is presented which converts a raster image into a discrete set of plateaux or contours. These contours can be grouped into a hierarchical structure, defining total spatial inclusion, called a contour tree. A contour coder has been developed which fully describes these contours in a …
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A Family of Hierarchical Encoding Techniques for Image and Video Communications
<p>As the demand for image and video transmission and interactive multimedia applications continues to grow, scalable image and video compression that has robust behavior over unreliable channels are of increasing interest. These desktop applications require scalability as a main feature due to its …
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Understanding what a captioning network doesn't know
… seen significant advances in the capabilities of image recognition and classification neural networks, we still know little about the relationship between the activation of hidden layers and human-understandable concepts. Recent work in network interpretability has provided a framework for …
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Spatiotemporal Encoding Methods for Brain Magnetic Resonance Imaging
… technical challenge of MRI acquisition—low image encoding efficiency, leading to limited acquisition speed, spatial resolution and signal-to-noise ratio especially for in-vivo imaging. In order to address these challenges, this thesis presents newly developed spatiotemporal encoding methods, …
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Parametric PAINTOVER: Generating Design Models via Image Encoders and Latent Trajectories
… and dimensions. We implement rendering and image encoding to use images as an interface among the outputs and inputs of the model, enabling users with direct modification via painting over. We use sketches, renderings, and 3d models for sampling latent spaces. We share experiment results …
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Methods for functional brain imaging
… of the gradient magnetic fields required for image encoding, which interferes with auditory stimuli and enforces inefficient and slow sampling strategies. We demonstrate a fMRI method that uses parallel imaging and redesigned gradient waveforms to both minimize and slow down the gradient …
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Integrated Visible-Light Platforms, Devices, and Systems for Augmented Reality and Beyond
… are not capable of producing holographic images with full depth cues; this lack of depth information results in users experiencing eyestrain and headaches that limit long-term and wide-spread use of these displays. Here, to address these limitations, VIPER (Visible Integrated Photonics …
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A Study of Perceptually Tuned, Wavelet Based, Rate Scalable, Image and Video Compression
… tuned wavelet based, rate scalable, and color image encoding/decoding system based on the human perceptual model. It is based on state-of-the-art research on embedded wavelet image compression technique, Contrast Sensitivity Function (CSF) for Human Visual System (HVS) and extends this scheme …
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SCAN: ΜΙΑ ΓΛΩΣΣΑ ΓΙΑ ΑΚΟΛΟΥΘΙΑΚΗ ΠΡΟΣΠΕΛΑΣΗ ΔΙΔΙΑΣΤΑΤΩΝ ΔΕΔΟΜΕΝΩΝ
… APPROACH TO THE FOLLOWING PROBLEM: "GIVEN AN IMAGE ARRAY P OFNXN ELEMENTS, DEVELOP A TOOL WHICH CAN DESCRIBE AND PRODUCE ALL POSSIBLE SCANNING SEQUENCES OF P (THAT IS (N2)! DIFFERENT SEQUENCES)". SCAN IS A SIMPLE CONTEXT-FREE LANGUAGE DEVOTED TO DESCRIBE AND GENERATE A WIDE RANGE OF TWO …
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Face recognition using multiple features in different color spaces
… face recognition methods use gray-scale face images, which have been shown insufficient to tackle these challenges. To overcome this challenging problem in face recognition, this dissertation applies multiple features derived from the color images instead of the intensity images only. First, …
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Finding back home: from vector models to virtual forests
… 2, I introduce the ASV model, a vector-based image encoding algorithm, and outline how it can be used both for navigation and the analysis of image symmetry. I show that the ASV method's usefulness for navigation is closely linked to the local visual makeup of a location and its surroundings. …
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Ranging-Image-Based Methodologies to Enhance LiDAR Processing Efficiency
… data processing framework based on the ranging image, a spherical angular point cloud encoding method for conventional 10Hz mechanical LiDAR sensors. The research focuses on designing and developing a systematic suite of data processing components built upon the ranging image data structure to …