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 109 for “"image retrieval"”.
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Preprocessing for content-based image retrieval
The research focuses on image retrieval problems where the query is formed as an image of a specific object of interest. The broad aim is to investigate pre-processing for retrieval of images of objects when an example image containing the object is given. The object may be against a variety of …
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Boosting sparse representations for image retrieval
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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Vision-based image retrieval (VBIR) : a new eye-tracking based approach to efficient and intuitive image retrieval
… von Blickbewegungsmessungen. Im Vision-Based Image Retrieval (VBIR) werden die Bilder in 16 gleich große Sektoren unterteilt, für die jeweils lokale Farb-, Form- und Texturmerkmale berechnet werden. Das Besondere am VBIR-Ansatz ist die dynamische Gewichtung lokaler Bildmerkmale (Bottom-Up …
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Children's Color Association for Digital Image Retrieval.
… been focused on developing mature information retrieval systems that abstract information automatically from the contents of information resources, such as books, images and films. As a subset of information retrieval research, content-based image retrieval systems automatically abstract …
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Feature histograms for content-based image retrieval
… System zur Bildsuche namens SIMBA - Search IMages By Appearance, und zur Briefmarkenerkennung und Suche nach ähnlichen Motiven. Letztere Anwendung demonstriert zudem, daß der gewählte allgemeine Ansatz leicht durch applikationsspezifisches Wissen ergänzt werden kann.
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Content Based Image Retrieval From Microscope Slides
… call connected clustering. It groups neighboring images that are similar, allowing the system to treat them as a single unit. I show that this improves the response time of the system and reduces redundancy in the results displayed to the end-user.
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Investigating Different Image Representations for Image Retrieval
With image and video databases becoming more prevalent and larger, so too does the tools used for navigating and searching them. Image retrieval, or the process of finding one particular image from a set of images, is one such process. Image retrieval relies on some innate searching of the images …
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Image Retrieval using Landmark Indexing for Indoor Navigation
A novel approach is proposed for real-time retrieval of images from a large database of overlapping images of an indoor environment. The procedure extracts visual features from images using selected computer vision techniques, and processes the extracted features to create a reduced list of …
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RELEVANCE FEEDBACK TECHNIQUES FOR CONTENT-BASED IMAGE RETRIEVAL
… attributes of the features to be used for retrieval, the query formulation process may not be transparent to him. In particular, without detailed knowledge of the collection make-up and retrieval environment, most users find it difficult to formulate queries that are well designed for …
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A Content-Based Image Retrieval System for Fish Taxonomy
… In this paper, we propose a content-based image retrieval system for taxonomic research. The system can identify representative body shape characters of known species based on digitized landmarks and provide statistical clues for assisting taxonomists to identify new species or subspecies. …
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Visual Saliency Detection and its Application to Image Retrieval
… with visual information, in particular with images. Image analysis and processing is often requires running computationally expensive algorithms. The knowledge of which part of an image is important over other parts allows for reduction of data to be processed. Besides computational cost a …
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Connecting vision and language via image retrieval and captioning
… jointly understanding vision and language, e.g. image/video captioning, multi-modal image retrieval, visual question answering. In this thesis, we consider several problems in cross-modal learning from vision and language. First, the problem of composed query image retrieval is studied. In this …
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Eye Tracking: A Perceptual Interface for Content Based Image Retrieval
… The thesis first explores gaze behaviour on images possessing different levels of saliency. Eye behaviour was predominantly attracted by salient locations, but appears to also require frequent reference to non-salient background regions which indicated that information from scan paths might …
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Color, Texture, and Shape Features for Content-Based Image Retrieval
… the development of a prototype content-based retrieval system, the Multimedia Analysis and Retrieval System (MARS), a joint effort by several research groups under the Digital Library Initiative. In MARS, we have developed and implemented a shape-matching method that is very fast …
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Efficient object recognition and image retrieval for large-scale applications
Algorithms for recognition and retrieval tasks generally call for both speed and accuracy. When scaling up to very large applications, however, we encounter additional significant requirements: adaptability and scalability. In many real-world systems, large numbers of images are constantly added to …
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Imagina : a cognitive abstraction approach to sketch-based image retrieval
… gather an increasingly large number of digital images. As a collection grows to more than a few hundred images, the need for search becomes crucial. This thesis is addressing the problem of retrieving from a small database a particular image previously seen by the user. This thesis combines …
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