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 19 of 19 for “"object reconstruction"”.
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Volumetric object reconstruction by means of photogrammetry
In vielen Bereichen, wie Virtual Reality, Wissenschaft, Medizin und Unterhaltung wird die automatische Erstellung von 3D Computer Modellen benötigt. In dieser Arbeit behandeln wir das Problem zur Erstellung photorealistischer Modelle aus Einzelbildern und wir präsentieren eine volumetrische …
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Language-Guided 4D Object Reconstruction from Videos
… cost-prohibitive, as it requires both detailed object 3D structure and accurate motion within a complex 3D environment. This thesis proposes a framework that converts object-centric monocular videos into 4D representations. The two primary challenges we aim to tackle are: 1) key object …
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Range sensing for 3D object reconstruction and visualization
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.
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A line photogrammetry algorithm for 3D rectilinear object reconstruction
… line. The algorithm presented is intended for object reconstruction and is motivated by the need to reconstruct man-made objects in urban areas, such as buildings and the industrial inspection arena. The method aims to obtain a best-fit line through a "pencil of planes". The reconstructed 3D …
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Complete Visual and Geometric Object Reconstruction via Autonomous Robotic Manipulation
Accurately simulating object dynamics based on real-world perception inputs has wide applications in digital twins and robotic manipulation. Yet, doing so requires practitioners to carefully measure and reconstruct the dynamic and geometric properties of the objects, which is time-consuming and …
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Interferometric light microscopy for wafer defect inspection and three-dimensional object reconstruction
… is solving the inverse scattering problem for 3D object reconstruction in quantitative phase imaging (QPI). Three-dimensional optical reconstruction typically uses a laser light source, suffering from speckle noise, and the measurements are usually done in the far zone by scanning the laser …
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Object reconstruction using close-range all-round digital photogrammetry for applications in industry
… measurements from data rapidly acquired with the object in situ. Along with these advantages, digital photogrammetry offers the potential for the automation or semi-automation of many of the conventional photogrammetric procedures, leading to real-time or near real-time measurement capabilities. …
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Object-centric Mapping
This thesis focuses on building an object-centric 3D map given an RGB image sequence, in which the basic elements are object instances. This is fundamentally different from conventional visual Simultaneous Localisation and Mapping (SLAM) that describes the geometry of an environment using geometric …
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Reconstruction of stellar images from correlations
The problem of object reconstruction from a series of short-exposure astronomical image data observed by ground-based telescopes is addressed. The observations are seriously degraded by atmospheric turbulence as well as corrupted by photon noise, detection noise and background noise. An approach …
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Vision-based proprioception and tactile sensing for soft robots
… shape estimation and dense tactile reconstruction, transferring from simulation to hardware without per-scene supervision (zero-shot). Experiments demonstrate accurate recovery of large-scale bends, robust contact mapping under varied loads, and practical multi-touch object …
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Holistic indoor scene understanding, modelling and reconstruction from single images.
… conceptual knowledge such as the room layout, object categories, and their interrelationships (e.g. support relationship). These scene semantics are usually coupled with object and room geometry for 3D scene understanding, for example, layout plan (i.e. location of walls, ceiling and floor), …
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Cognitive GPR for subsurface sensing based on edge computing and deep reinforcement learning
… the DQN model by using the results of subsurface object detection (via the region of interest identification) and recognition (via classification). Furthermore, to acquire a global view of subsurface objects with complex shape configurations, 2D B-Scan image analysis is extended to 3D GPR data …
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Searches for Diboson New Physics and the L1Calo Software Development with the ATLAS Detector
… project for the implementation of three new object processors: eFex, jFex, and gFex. This thesis will also present the construction of simulation system along with the expected performance of proposed object reconstruction algorithms for this new infrastructure.
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Wavelet Transforms for Stereo Imaging
… stereo such as three-dimensional high-resolution object reconstruction and view synthesis, which require disparity estimates in all image regions.<br/><br/>Stereo correspondence algorithms usually require significant computation. The challenges are computational economy, accuracy and robustness. …
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Learning Monocular Cues in 3D Reconstruction
3D reconstruction is a fundamental problem in computer vision. While a wide range of methods has been proposed within the community, most of them have fixed input and output modalities, limiting their usefulness. In an attempt to build bridges between different 3D reconstruction methods, we focus …
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Detailed and Practical 3D Reconstruction with Advanced Photometric Stereo Modelling
Object 3D reconstruction has always been one of the main objectives of computer vision. After many decades of research, most techniques are still unsuccessful at recovering high resolution surfaces, especially for objects with limited surface texture. Moreover, most shiny materials are particularly …
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Semilineare Approximation in der Bildrekonstruktion
In der Bildverarbeitung spielen Segmentierungsalgorithmen, bei denen die Art der zu segmentierenden Menge schon im Voraus festgelegt werden kann und nur noch ihre Größe und Lage angepasst werden muss, eine eher untergeordnete Rolle. Gründe hierfür sind vor allem komplizierte Zielfunktionen und …
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Optische Vermessung partiell reflektierender Oberflächen
Die vorliegende Arbeit befaßt sich mit der dreidimensionalen Rekonstruktion reflektierender Oberflächen. Dabei wird sowohl die Oberflächenform als auch die absolute Lage im Raum bestimmt. Es werden Oberflächen behandelt, die einerseits total reflektieren, andererseits diffuse und spiegelnde …
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Single view object completion
The goal of this paper is to achieve complete reconstruction of a 3d object from a single depth image observation. Much effort has been put on multi-view reconstruction of objects with substantial success, but single view recon- struction is still very limited. Initial methods produce only partial …