Global ETD Search

1	Measuring Visual Closeness of 3-D Models Gollaz Morales, Jose Alejandro 09 1900 (has links) Measuring visual closeness of 3-D models is an important issue for different problems and there is still no standardized metric or algorithm to do it. The normal of a surface plays a vital role in the shading of a 3-D object. Motivated by this, we developed two applications to measure visualcloseness, introducing normal difference as a parameter in a weighted metric in Metro’s sampling approach to obtain the maximum and mean distance between 3-D models using 3-D and 6-D correspondence search structures. A visual closeness metric should provide accurate information on what the human observers would perceive as visually close objects. We performed a validation study with a group of people to evaluate the correlation of our metrics with subjective perception. The results were positive since the metrics predicted the subjective rankings more accurately than the Hausdorff distance. 3-D models Visual closeness meshes Hausdorff distance
2	Dissertation_Meghdad_revised_2.pdf Seyyed Meghdad Hasheminasab (14030547) 30 November 2022 (has links) <p> </p> <p>Modern remote sensing platforms such as unmanned aerial vehicles (UAVs) that can carry a variety of sensors including RGB frame cameras, hyperspectral (HS) line cameras, and LiDAR sensors are commonly used in several application domains. In order to derive accurate products such as point clouds and orthophotos, sensors’ interior and exterior orientation parameters (IOP and EOP) must be established. These parameters are derived/refined in a triangulation framework through minimizing the discrepancy between conjugate features extracted from involved datasets. Existing triangulation approaches are not general enough to deal with varying nature of data from different sensors/platforms acquired in diverse environmental conditions. This research develops a generic triangulation framework that can handle different types of primitives (e.g., point, linear, and/or planar features), and sensing modalities (e.g., RGB cameras, HS cameras, and/or LiDAR sensors) for delivering accurate products under challenging conditions with a primary focus on digital agriculture and stockpile monitoring application domains. </p> Photogrammetry and remote sensing Remote sensing imagery photogrammetric 3 D models image matching registration structure from motion (SfM)
3	EXPERIMENTAL AND ANALYTICAL ASSESSMENT ON THE PROGRESSIVE COLLAPSE POTENTIAL OF EXISTING BUILDINGS Song, Brian Inhyok 22 October 2010 (has links) No description available. Civil Engineering Progressive collapse Structural failure Existing steel building Load redistribution Alternate path method 2-D and 3-D models Linear static analysis Nonlinear dynamic analysis field experiments SAP2000 analysis DCR values
4	Construction Simulation of Wudian Using 3-D Graphics and Animations Li, Jiyuan 21 May 2015 (has links) No description available. Civil Engineering Classical Studies Computer Engineering Conservation Ancient History Ancient Civilizations Architectural Architecture Archaeology Asian Studies Design Engineering Educational Software Educational Technology History Chinese Architecture Construction Simulation Dou Gong Graphic 3-D Models Qing Dynasty Architecture Three-dimensional Animation Three-dimensional Simulation Timber Structure Wudian Wudian Construction Wudian Roof

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