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 20 of 86 for “"light field"”.
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Scam light field rendering
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2003.
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Light field appearance manifolds
… techniques, which can represent complex lighting conditions, structures, and surfaces. We construct a light field manifold capturing the multi-view appearance of an object class and extend previous direct search algorithms to match new light fields or 2D images of an object to a point on …
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Advanced Light Field Frame Prediction For Optimized Compression
Current light field compression techniques lack robustness to handle both rate distortion optimized motion compensation as well as latency during the encoding and decoding process. This paper focuses on a contribution approach that uses advanced prediction with affine and translational motion …
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Deep learning-based optimization of light field processing
As commonly acknowledged, light field technology offers a multi-dimensional extension for image processing by capturing both the intensity and direction of light rays, resulting in a more comprehensive representation of the real world and significantly enhancing human perception. However, the …
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Single Molecule Localisation with Fourier Light Field Microscopy
… characterisation experiments. These results highlight how the technique can be tuned to signal constraints and desired imaging specifications, giving rise to the formulation of a novel design workflow. The performance of this technique is compared to current 3D SMLM techniques, highlighting the …
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Light field microscopy for 3D imaging flow cytometry
… unable to answer certain biological questions. Light field microscopy is a computational imaging technique that captures 3D information in a single camera shot. In contrast to many other methods of 3D imaging, light field requires only a simple optical setup and no moving parts—making it ideally …
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A light field camera for image based rendering
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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Light field applications to 3-dimensional surface imaging
The structure of light around a scene may be contained in a 4-dimensional array known as a light field. This thesis describes methods for acquiring and manipulating light fields for applications in 3-dimensional imaging. By actively sampling parts of the wavefront impinging on a lens, or using …
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Vortex Light Field Microscopy for 3D Spectral Single-Molecule Imaging
… improves spatial resolution over conventional light microscopy, allowing cellular structures and dynamic processes to be visualized at nanoscale. To solve the inherent three-dimensional (3D) architecture of biological structures, various 3D SMLM methods have been developed to extend axial range …
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Towards real-time light field processing for quantitative imaging and perception
This thesis aims to make light field imaging based 3D particle image velocimetry (PIV) practically feasible and affordable. In addition, this thesis also extends light field imaging techniques developed with PIV as a target application, for improved perception in robotics. Building upon the basic …
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Totems: Verifying the Integrity of Visual Information using Neural Light Field
In this work, we introduce a new approach to image forensics: physically placing a totem into the scene before taking a photo that needs to be protected from manipulations. A totem is any reflective or refractive object such that when placed in a scene, it displays a distorted version of the scene, …
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The polarization of the near asymptotic light field in sea water.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1966. Ph.D.
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Holotab: Design and Evaluation of Interaction Techniques for a Handheld 3D Light Field Display
… work presents the Holotab system, an interactive light field 3D display - an approach to make a glasses-free 3D light field display using a conventional 2D display and a lenticular sheet. The Holotab system uses 3D content encoded as streams of colour and depth information, then rendered using the …
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Shape Dynamical Models for Activity Recognition and Coded Aperture Imaging for Light-Field Capture
… investigate computational imaging, an emerging field where the process of image formation involves the use of a computer. The current trend in computational imaging is to capture as much information about the scene as possible during capture time so that appropriate images with varying focus, …
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Phase-space representation of digital holographic and light field imaging with application to two-phase flows
… under study, digital holographic imaging and light field imaging, are targeted at different flow conditions. In low-density flows, particles and air bubbles in water can be imaged by a digital holographic imaging system to provide 3D flow information. In the high density case, both occlusions …
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Arbitrarily-controllable programmable aperture light field cameras : design theory, and applications to image deconvolution & 3-dimensional scanning
… describes a new class of programmable-aperture light field cameras based on an all-digital, grayscale aperture. A number of prototypes utilizing this arbitrarily-controllable programmable aperture (ACPA) light field technology are presented. This new method of capturing light field data lends …
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A DNS capability for obtaining underwater light field and retrieving upper ocean conditions via in-water light measurements
… (DNS) capability of solving complicated natural light field patterns in the ocean-atmosphere system. The DNS is applied by means of Monte Carlo method to solve radiative transfer for both unpolarized and polarized natural light radiation, especially strongly affected with dynamic air-sea boundary …
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Tensor photography : exploring space of 4D modulations inside traditional camera designs
Light field photography has gained a significant research in the last two decades: today, commercial light field cameras are widely available demonstrating capabilities such as post-capture refocus, 3D photography and view point changes. But, most traditional acquisition approaches either multiplex …
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