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.
Results
Showing 1 to 20 of 31 for “"scene reconstruction"”.
-
CAD Model-Based 3D Scene Reconstruction
Accurate scene reconstruction from an image or a video is essential for various applications in robotics and augmented reality. One common method involves retrieving the best-matching CAD model for each observed object from a database and aligning it with the corresponding input. This technique …
-
Broadband World Modeling and Scene Reconstruction
… perception algorithms, this thesis explores scene reconstruction and world modeling. The process involves two main steps. The first is stereo correspondence using block matching algorithms with filtering to improve the quality of this matching process. The disparity maps are then transformed …
-
Scene reconstruction using accumulated line-of-sight
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
-
Sensor Fused Scene Reconstruction and Surface Inspection
… robots to detect faults by creating 3D reconstructions of environments. To detect surface faults, sub millimeter depth resolution is required to determine minute differences caused by coating loss and pitting. Sensors that can detect these small depth differences cannot quickly create …
-
Underwater Refractive Camera Calibration and 3D Scene Reconstruction
… focuses on refractive camera calibration and 3D reconstruction. It starts with investigating geometric models and calibration methods for dome-port camera systems, then introduces an open-source refractive Structure-from-Motion (SfM) solution that integrates refraction throughout the …
-
LARGE-SCALE NEURAL 3D SCENE RECONSTRUCTION, RENDERING, AND BEYOND
This thesis advances neural 3D reconstruction into a scalable and robust process for real-world applications. While techniques like NeRF and 3D Gaussian Splatting (3DGS) show promise, they face challenges in scalability, robustness to imperfect camera poses, and consistency across distributed …
-
Blinking cubes : a method for polygon-based scene reconstruction
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
-
High-Fidelity Image -Based Modeling
… of automatically acquiring geometric object and scene models from photographs or video clips. This dissertation addresses three core problems in image-based modeling: static scene reconstruction, high-fidelity camera calibration, and dynamic scene reconstruction. For static scene reconstruction, …
-
The analysis of the artefacts produced by forensically significant blowfly (Diptera: Calliphoridae) activity and their effect on bloodstain pattern analysis
… Accurate analysis of bloodstains at the scene can provide investigators with insights into the series of events that occurred during the execution of a violent crime. At a crime scene, blowflies feed on bloodstains and deposit artefacts that may cause confusion during crime scene …
-
Efficient volumetric reconstruction from multiple calibrated cameras
The automatic reconstruction of large scale 3-D models from real images is of significant value to the field of computer vision in the understanding of images. As a consequence, many techniques have emerged to perform scene reconstruction from calibrated images where the position and orientation of …
-
Large-scale probabilistic aerial reconstruction
… much emphasis has been placed on large-scale 3D scene reconstruction from a single data source such as images or distance sensors, models that jointly utilize multiple data types remain largely unexplored. In this work, we will present a Bayesian formulation of scene reconstruction from …
-
"""Travelling Without Moving"": A Study on the Reconstruction, Compression, and Rendering of Three-Dimensional Environments for Telepresence"
… 3D-video, and in particular issues of 3D scene reconstruction, compression, and rendering. We present four main contributions. First, we present a novel algorithm which performs surface reconstruction from planar arrays of cameras and generates dense depth maps with multiple values per …
-
Robust Video Object Tracking via Camera Self-calibration
In this dissertation, a framework for 3D scene reconstruction based on robust video object tracking assisted by camera self-calibration is proposed, which includes several algorithmic components. (1) An algorithm for joint camera self-calibration and automatic radial distortion correction based on …
-
CableSplat: Optimized 3D Gaussian Splatting for 1D Deformable Pose Estimation
… simulated tasks. Furthermore, performance on a scene reconstruction metric drops only slightly between simulated and real-world data, suggesting high-fidelity state estimation even in the real world. CableSplat is therefore a promising candidate for the extension of existing manipulation systems …
-
A custom computing framework for orientation and photogrammetry
… and surveillance, autonomous navigation, and scene reconstruction. These operations generally require extensive computing power; when multiple conventional processors and custom gate arrays are inappropriate, due to either excessive cost or risk, a class of devices known as Field-Programmable …
-
Optimal standoff imaging using structured laser illumination and graphical models
… spatially-structured laser pulses is cast on the scene of interest, and a single-detector power measurement is made on the light each pulse returns from the scene. There has been significant interest in the "ghost imaging" configuration, in which the spatial patterns are randomly generated-e.g., …
-
The forensic reconstruction of road traffic accidents
… of collision damage quantification and accident scene reconstruction in a critical manner. A series of accident scenarios that demonstrate modern-day vehicle collisions will be presented. The collision damage will be studied with regard to the scene, environment and the path and speed of each …
-
High Resolution Melt Analysis of Samples with Differential DNA Methylation to Identify Tissue Source of Origin
… the source of a tissue can assist in crime scene reconstruction. Currently, presumptive testing methods to identify tissue type are utilized in crime scene laboratories, but there is a need for a more reliable confirmatory test for tissue type identification. High Resolution Melt (HRM) …
-
Dynamic Scene Editing via Semantically Trained 3D Guassians
Image-based 3D scene reconstruction continues to be a challenge as it involves solving both the sufficient 3D representation problem and the 3D reconstruction itself. One approach to tackle the rendering problem is 3D Gaussian Splatting because of its potential to produce fast and realistic renders …
-
Multibounce light transport analysis using ultrafast imaging for material acquisition
… representation of light transport, which enables scene reconstruction using standard optimization techniques. We demonstrate the accuracy and efficiency of our methods using various simulations as well as an experimental setup. In particular, we develop the concept of 'in the wild' reflectance …
Page 1 of 2