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 1923 for “"Segmentation."”.
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Learning static object segmentation from motion segmentation
This thesis describes the SANE (Segmentation According to Natural Examples) algorithm for learning to segment objects in static images from video data. SANE uses background subtraction to find the segmentation of moving objects in videos. This provides object segmentation information for each video …
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Adaptive video segmentation
… technique depends on the efficiency of the video segmentation algorithm which is a fundamental step in video indexing. Video segmentation is a process of splitting up a video sequence into its constituent scenes. This work focuses on the problem of video segmentation. A content-based approach has …
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Segmenting Segmentation: A Taxonomy Bridging Theory and Practice of Strategic Consumer Segmentation
… explanations of market variation in 1933, segmentation has been formally studied for eighty years. While more than 2,700 studies have been published (most as studies on statistical methods of segmentation), scant evidence has been gathered on the role market segmentation plays in strategy …
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Supervised manifold distance segmentation
… and robust method for image and volume data segmentation based on manifold distance metrics. In this approach, pixels in an image are not considered as points with color values arranged in a grid. In this way, a new data set is built by a transform function from one traditional 2D image or 3D …
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Segmentation of textured images
… The principle of the approaches to texture segmentation adopted in this thesis is mapping a textured image into a grey level image so that conventional segmentation techniques by intensity can be applied. Three novel approaches to texture segmentation have been developed in this thesis. They …
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Aging and Event Segmentation
… used a memory-based behavioural measure of the segmentation of events in a movie to examine age differences in the role of event distinctiveness in memory performance. I then used electroencephalography (EEG) to test implicitly whether older and younger adults differ in their perception of event …
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Amodal video instance segmentation
… of semantic amodal instance level video object segmentation, i.e., the task to delineate objects and their occluded parts in video data. We propose Amodal-Net with three improvements: First, we leverage temporal information. Specifically, we employ 3D convolutions and a flow alignment module …
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Edge-based motion segmentation
Motion segmentation is the process of dividing video frames into regions which have different motions, providing a cut-out of the moving objects. Such a segmentation is a necessary first stage in many video analysis applications, but providing an accurate, efficient motion segmentation still …
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Texture measures for segmentation
… surveys a wide range of texture descriptors and segmentation methods to determine the state of the art in texture segmentation. Two types of texture descriptors are investigated: filter bank based methods and local descriptors. Filter banks deconstruct an image into several bands, each of which …
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Color Invariant Skin Segmentation
This work addresses the problem of automatically detecting human skin in images without reliance on color information. Unlike previous methods, we present a new approach that performs well in the absence of such information. A key aspect of the work is that color-space augmentation is applied …
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Image segmentation, evaluation, and applications
This thesis aims to advance research in image segmentation by developing robust techniques for evaluating image segmentation algorithms. The key contributions of this work are as follows. First, we investigate the characteristics of existing measures for supervised evaluation of automatic image …
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Scene Segmentation Using Polarisation Information
… of this thesis is to develop a method for image segmentation based on surface material characteristics. The novel aspects of the method are the expression of intensity distribution as a function of the surface zenith and azimuth angles, and the expansion of this function using spherical harmonics …
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Benefit segmentation of slot players
… to understand this growing market. The benefit segmentation of the slot players could help marketers use the resources to target the slot market efficiently and effectively; This study explored the benefits sought by the slot players from playing slot machines. The author researched twelve …
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SEMANTIC SEGMENTATION OF PRINT ADVERTISEMENTS
<p>The purpose of the study was to construct a comprehensive model of advertisement perception. The model's relationship to persuasion, recall and recognition measures of advertisement effectiveness was explored. The research demonstrated that print advertisements are perceived primarily across …
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Morphological Segmentation During Silent Reading
… hypotheses about the properties of morphological segmentation: (a) that it applies on phonemic representations, and (b) that it outputs affixal information that is taken up and used at representational levels higher than the lexical one. In two experiments, participants' eye-movements were …
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Retinal vessel segmentation using textons
Segmenting vessels from retinal images, like segmentation in many other medical image domains, is a challenging task, as there is no unified way that can be adopted to extract the vessels accurately. However, it is the most critical stage in automatic assessment of various forms of diseases (e.g. …
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Unsupervised segmentation of heart sounds
… Part of a hypothetical diagnostic system is the segmentation subsystem which locates the boundaries between heartbeats. This thesis examines the design and performance of two approaches to segmentation: peak energy detection and sliding window autocorrelation. Emphasis is placed on synchronous …
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