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Mariela Lopresti, Natalia Miranda, Fabiana Piccoli, Nora Reyes
Query-by-content by means of similarity search is a fundamental operation for applications that deal with multimedia data. For this kind of query it is meaningless to look for elements exactly equal to the one given as query. Instead, we need to measure dissimilarity between the query object and each database object. The metric space model […]
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Shuai Li, Qinping Zhao, Shengfa Wang, Aimin Hao, Hong Qin
This paper articulates a novel method for the heterogeneous feature extraction and classification directly on volumetric images, which covers multi-scale point feature, multi-scale surface feature, multi-level curve feature, and blob feature. To tackle the challenge of complex volumetric inner structure and diverse feature forms, our technical solution hinges upon the integrated approach of locally-defined diffusion […]
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Mariela Lopresti, Natalia Miranda, Fabiana Piccoli, Nora Reyes
Similarity search is a fundamental operation for applications that deal with multimedia data. For a query in a multimedia database it is meaningless to look for elements exactly equal to a given one as query. Instead, we need to measure the similarity (or dissimilarity) between the query object and each object of the database. The […]
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Mariela Lopresti, Natalia Miranda, Fabiana Piccoli, Nora Reyes
Manipulating and retrieving multimedia data has received increasing attention with the advent of cloud storage facilities. The ability of querying by similarity over large data collections is mandatory to improve storage and user interfaces. But, all of them are expensive operations to solve only in CPU; thus, it is convenient to take into account High […]
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Asger Dam Hoedt
The topic of this thesis is ray tracing dynamic scenes and doing that efficiently while harnessing the massive computational power of today’s graphics cards. It is motivated by the ever increasing interest in raytracing and global illumination for creating effects in movies, but also the increased usage of 2D and 3D ray tracing in modern […]
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