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Shadows are essential for realistic image compositing. Physics-based shadow rendering methods require 3D geometries, which are not always available. Deep learning-based shadow synthesis methods learn a mapping from the light information to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Yichen Sheng , Yifan Liu , Jianming Zhang , Wei Yin , A. Cengiz Oztireli , He Zhang , Zhe Lin , Eli Shechtman , Bedrich Benes

Research interest in rapid structured-light imaging has grown increasingly for the modeling of moving objects, and a number of methods have been suggested for the range capture in a single video frame. The imaging area of a 3D object using…

Computer Vision and Pattern Recognition · Computer Science 2015-09-01 Changsoo Je , Kwang Hee Lee , Sang Wook Lee

This paper describes an investigation of the acoustic properties of a rigid plate with a periodic pattern of holes, in a compressible, ideal, inviscid fluid in the absence of mean flow. Leppington and Levine (J. Fluid Mech., 1973) obtained…

Numerical Analysis · Mathematics 2015-06-18 S. Laurens , E. Piot , A. Bendali , M'B. Fares , S. Tordeux

Many optical microscopy techniques rely on structured illumination by way of a projected image (eg. structured illumination microscopy) or a tailored angular distribution of light (eg. ptychography). Electro-optical equipment such as…

Physics Education · Physics 2020-09-23 Antony Orth

Diffusion models emerged as a leading approach in text-to-image generation, producing high-quality images from textual descriptions. However, attempting to achieve detailed control to get a desired image solely through text remains a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Pablo Domingo-Gregorio , Javier Ruiz-Hidalgo

Image segmentation has long been a basic problem in computer vision. Depth-wise Layering is a kind of segmentation that slices an image in a depth-wise sequence unlike the conventional image segmentation problems dealing with surface-wise…

Computer Vision and Pattern Recognition · Computer Science 2020-11-22 Seyedsaeid Mirkamali , P. Nagabhushan

We present a 3D modeling method which enables end-users to refine or detailize 3D shapes using machine learning, expanding the capabilities of AI-assisted 3D content creation. Given a coarse voxel shape (e.g., one produced with a simple box…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Qimin Chen , Zhiqin Chen , Vladimir G. Kim , Noam Aigerman , Hao Zhang , Siddhartha Chaudhuri

Digital image inpainting refers to techniques used to reconstruct a damaged or incomplete image by exploiting available image information. The main goal of this work is to perform the image inpainting process from a set of sparsely…

Image and Video Processing · Electrical Eng. & Systems 2021-08-25 Viktor Daropoulos , Matthias Augustin , Joachim Weickert

Immersion optics enable creation of systems with improved optical concentration and coupling by taking advantage of the fact that the luminance of light is proportional to the square of the refractive index in a lossless optical system.…

Optics · Physics 2022-11-22 Nina Vaidya , Olav Solgaard

Diffusion models generate new samples by progressively decreasing the noise from the initially provided random distribution. This inference procedure generally utilizes a trained neural network numerous times to obtain the final output,…

The light transmission through a dispersive plasmonic circular hole is numerically investigated with an emphasis on its subwavelength guidance. For a better understanding of the effect of the hole diameter on the guided dispersion…

Optics · Physics 2009-02-20 Ki Young Kim , Young Ki Cho , Heung-Sik Tae , Jeong-Hae Lee

Image extrapolation aims at expanding the narrow field of view of a given image patch. Existing models mainly deal with natural scene images of homogeneous regions and have no control of the content generation process. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2019-12-30 Yijun Li , Lu Jiang , Ming-Hsuan Yang

We adapted a conventional microscope for projection photolithography using an ultraviolet (UV) light-emitting diode (LED) as a light source. The use of a UV LED provides the microscope projector with several advantages in terms of…

Physics Education · Physics 2022-03-23 Minjae Kwon , Young-Gu Ju

Portable quantum technologies require robust, lightweight apparatus with superior performance. For techniques dependent upon high-vacuum environments, such as atom interferometers and atomic clocks, 3D-printing enables new avenues to tailor…

The assessment of sewer pipe systems is a highly important, but at the same time cumbersome and error-prone task. We introduce an innovative system based on single-shot structured light modules that facilitates the detection and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Johannes Künzel , Darko Vehar , Rico Nestler , Karl-Heinz Franke , Anna Hilsmann , Peter Eisert

In this work we develop a high-resolution mapped-grid finite volume method code to model wave propagation in two dimensions in systems of multiple orthotropic poroelastic media and/or fluids, with curved interfaces between different media.…

Numerical Analysis · Mathematics 2013-05-15 Grady I. Lemoine , M. Yvonne Ou

We present a method for determining the 3D intensity distribution of directed laser radiation with micrometer resolution in restricted volumes. Our method is based on in-coupling and guiding properties of optical fibers, with the current…

Optics · Physics 2013-02-14 Yevhen Miroshnychenko , Otto Nielsen , Aske Thorsen , Michael Drewsen

We present the design and manufacturing of high fidelity universal 3D fingerprint targets, which can be imaged on a variety of fingerprint sensing technologies, namely capacitive, contact-optical, and contactless-optical. Universal 3D…

Computer Vision and Pattern Recognition · Computer Science 2017-05-24 Joshua J. Engelsma , Sunpreet S. Arora , Anil K. Jain , Nicholas G. Paulter

3D single object tracking remains a challenging problem due to the sparsity and incompleteness of the point clouds. Existing algorithms attempt to address the challenges in two strategies. The first strategy is to learn dense geometric…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Jingwen Zhang , Zikun Zhou , Guangming Lu , Jiandong Tian , Wenjie Pei

We demonstrate the fabrication of volume holograms using 2-photon polymerization with dynamic control of light exposure. We refer to our method as (3+1)D printing. Volume holograms that are recorded by interfering reference and signal beams…

Optics · Physics 2023-10-11 Niyazi Ulas Dinc , Christophe Moser , Demetri Psaltis