Results 31 to 40 of about 24,825,488 (305)
A Vignetting Model for Light Field Cameras With an Application to Light Field Microscopy [PDF]
IEEE Transactions on Computational Imaging, 2019 In standard photography, vignetting is considered mainly as a radiometric effect because it results in a darkening of the edges of the captured image. In this paper, we demonstrate that for light field cameras, vignetting is more than just a radio-metric effect.
Mignard-Debise, Lois, Ihrke, Ivo
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Dynamically reparameterized light fields [PDF]
Proceedings of the 27th annual conference on Computer graphics and interactive techniques - SIGGRAPH '00, 2000 This research further develops the light field and lumigraph image-based rendering methods and extends their utility. We present alternate parameterizations that permit 1) interactive rendering of moderately sampled light fields of scenes with significant, unknown depth variation and 2) low-cost, passive autostereoscopic viewing.
Aaron Isaksen +2 more
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Actively modulated propagation of electromagnetic wave in hybrid metasurfaces containing graphene
EPJ Applied Metamaterials, 2020 Here we present the actively modulated transportation of electromagnetic wave through hybrid metasurfaces containing graphene. The hybrid metasurfaces are composed of patterned metallic layers of extraordinary transmission and backed with graphene ...
Nan Jiameng +5 more
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Immersive light field video with a layered mesh representation
ACM Transactions on Graphics, 2020 We present a system for capturing, reconstructing, compressing, and rendering high quality immersive light field video. We accomplish this by leveraging the recently introduced DeepView view interpolation algorithm, replacing its underlying multi-plane ...
M. Broxton +9 more
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Tying Knots in Light Fields [PDF]
Physical Review Letters, 2013 We construct a new family of null solutions to Maxwell's equations in free space whose field lines encode all torus knots and links. The evolution of these null fields, analogous to a compressible flow along the Poynting vector that is both geodesic and shear-free, preserves the topology of the knots and links.
Kedia, Hridesh +3 more
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Tight Focusing of Circular Partially Coherent Radially Polarized Circular Airy Vortex Beam
Photonics, 2023 The tight focusing properties of circular partially coherent radially polarized circular Airy vortex beams (CPCRPCAVBs) are theoretically studied in this paper.
Zhihao Wan +10 more
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Compressive Light Field Sensing [PDF]
IEEE Transactions on Image Processing, 2012 We propose a novel design for light field image acquisition based on compressive sensing principles. By placing a randomly coded mask at the aperture of a camera, incoherent measurements of the light passing through different parts of the lens are encoded in the captured images.
S. Derin Babacan +5 more
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Review of light field technologies
Visual Computing for Industry, Biomedicine, and Art, 2021 Light fields are vector functions that map the geometry of light rays to the corresponding plenoptic attributes. They describe the holographic information of scenes by representing the amount of light flowing in every direction through every point in ...
Shuyao Zhou +5 more
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Light-Field Imaging and Heterogeneous Light Fields [PDF]
, 2016 In traditional light-field analysis, images have matched spectral content which leads to constant intensity on epipolar plane image (EPI) manifolds. This kind of light field is termed homogeneous light field}. Heterogeneous light fields differ in that contributing images may have varying properties such as exposure selected or color filter applied. To
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Light field moment imaging [PDF]
Optics Letters, 2013 We introduce a novel imaging technique called light field moment imaging (LMI) that uses the continuity equation to extract the first angular moments of a light field. We use these moments to construct perspective views of a scene. Examples of LMI in photography and microscopy are presented.
Antony, Orth, Kenneth B, Crozier
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