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Limited By:	Subject = 3D modeling;

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Displaying Results 1 - 4 of 4 on page 1 of 1

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Exploring Spatial Business Data: a ROA Based eCampus Application (2013)

Pham Thi, Thanh Thoa; Truong- Hong, Linh; Yin, Junjun; Carswell, James

Exploring Spatial Business Data: a ROA Based eCampus Application (2013)

Pham Thi, Thanh Thoa; Truong- Hong, Linh; Yin, Junjun; Carswell, James

Abstract:

In "Smart" environments development, providing users with search utilities for interacting efficiently with web and wireless devices is a key goal. At smaller scales, Google Maps and Google Earth with satellite and street views have helped users for querying general information at specific locations. However, at larger local scales, where detailed 3D geometries linked to business data are needed, there is a recognized lack of related information and functionality for in depth exploration of an area. Linking spatial data and business data helps to enrich the user experience by fulfilling more task specific user needs. This paper presents an eCampus Demonstrator for the National University of Ireland, Maynooth (NUIM) based on a Resource Oriented Architecture (ROA), in which various RESTful web-services have been developed and deployed for querying both spatial data and associated business data. The benefits and drawbacks of the chosen technologies are also discussed. This wo...

https://arrow.dit.ie/dmccon/101

Marked Mark

Positron emission tomography-based assessment of metabolic gradient and other prognostic features in sarcoma (2018)

Wolsztynski, Eric; O'Sullivan, Finbarr; Keyes, Eimear; O'Sullivan, Janet; Ear...

Positron emission tomography-based assessment of metabolic gradient and other prognostic features in sarcoma (2018)

Wolsztynski, Eric; O'Sullivan, Finbarr; Keyes, Eimear; O'Sullivan, Janet; Eary, Janet F.

Abstract:

Intratumoral heterogeneity biomarkers derived from positron emission tomography (PET) imaging with fluorodeoxyglucose (FDG) are of interest for a number of cancers, including sarcoma. A range of radiomic texture variables, adapted from general methodologies for image analysis, has shown promise in the setting. In the context of sarcoma, our group introduced an alternative model-based approach to the measurement of heterogeneity. In this approach, the heterogeneity of a tumor is characterized by the extent to which the 3-D FDG uptake pattern deviates from a simple elliptically contoured structure. By using a nonparametric analysis of the uptake profile obtained from this spatial model, a variable assessing the metabolic gradient of the tumor is developed. The work explores the prognostic potential of this new variable in the context of FDG-PET imaging of sarcoma. A mature clinical series involving 197 patients, 88 of whom have complete time-to-death information, is used. Texture vari...

http://hdl.handle.net/10468/6883

Marked Mark

SAMATS: Edge Highlighting and Intersection Rating Explained (2005)

Hegarty, Joe; Carswell, James

SAMATS: Edge Highlighting and Intersection Rating Explained (2005)

Hegarty, Joe; Carswell, James

Abstract:

The creation of detailed 3D buildings models, and to a greater extent the creation of entire city models, has become an area of considerable research over the last couple of decades. The accurate modeling of buildings has LBS (Location Based Services) applications in entertainment, planning, tourism and e-commerce to name just a few. Many modeling systems created to date require manual correspondences to be made across the image set in order to determine the models 3D structure. This paper describes SAMATS, a Semi-Automated Modeling And Texturing System, which has the capability of producing geometrically accurate and photorealistic building models without the need for manual correspondences by using a set of geo-referenced terrestrial images. This paper gives an overview of SAMATS’ components, while describing the Edge Highlighting component and the Intersection Rating step from the Edge Recovery component in detail.

https://arrow.dit.ie/dmccon/88

Marked Mark

Triangle Grouping and Structure Recovery for 3D Building Modelling and Visualization (2005)

Hegarty, Joe; Carswell, James

Triangle Grouping and Structure Recovery for 3D Building Modelling and Visualization (2005)

Hegarty, Joe; Carswell, James

Abstract:

Location based and spatial technologies research for the web has endless application for mobile/position content delivery (m-commerce or pcommerce). By exploiting the inherent location-based intelligence of the underling spatial component, relevant examples can include geometrically accurate and photo realistic virtual representations for: property assessments; land/marine information systems; routing information; on-line shopping; cultural heritage/tourist information/sites; etc. A major challenge for this technology is its reliance on professional developers when creating the virtual worlds used for web-based navigation of these services. This paper describes SAMATS, a Semi-Automated Modeling And Texturing System, which has the capability of producing geometrically accurate and photorealistic VR building models for web-based p-commerce applications from a set of geo-referenced terrestrial images. This paper describes the second of three main components that comprise the full funct...

https://arrow.dit.ie/dmccon/87

Displaying Results 1 - 4 of 4 on page 1 of 1