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We present a detailed recipe for making movies from multi-epoch radio observations of astronomical sources. Images are interpolated linearly in time to create a smooth succession of frames so that a continuous movie can be compiled. Here,…

Astrophysics · Physics 2007-05-23 C. C. Cheung , D. C. Homan , J. F. C. Wardle , D. H. Roberts

Recent advances in the 3-D reconstruction of planetary nebulae are reviewed. We include not only results for 3-D reconstructions, but also the current techniques in terms of general methods and software. In order to obtain more accurate…

Solar and Stellar Astrophysics · Physics 2016-08-24 Wolfgang Steffen

We present a software package for combining three monochromatic images of an astronomical object into a trichromatic color image. We first discuss the meaning of "true" colors in astronomical images. We then describe the different steps of…

Astrophysics · Physics 2009-10-28 Sebastien Morel , Emmanuel Davoust

The image of planetary nebulae is made by three different physical processes. The first process is the expansion of the shell that can be modeled by the canonical laws of motion in the spherical case and by the momentum conservation when…

Astrophysics of Galaxies · Physics 2011-09-20 Lorenzo Zaninetti

Three dimensional images having continuous horizontal parallax were developed by wavelength enconding of view followed by a natural decoding process of projection onto a diffractive screen. It allows for the direct criation of "holoimages"…

Optics · Physics 2007-05-23 J. J. Lunazzi

Color encoding of depth is shown to occur naturally in holograms that are reconstructed under white light illumination. It can be registered in a common color photograph, allowing a simple method of visual decoding by means of ordinary…

Optics · Physics 2015-06-26 J. J. Lunazzi

The possibility of a three-dimensional visualisation/reconstruction of tracks in nuclear emulsion films using X-ray imaging is described in this paper. The feasibility of the technique is established with experimental results.

Instrumentation and Detectors · Physics 2007-05-23 Jerome Damet , Eva Pereiro Lopez , Alexander Sasov

The reflective nature of the human eye is an underappreciated source of information about what the world around us looks like. By imaging the eyes of a moving person, we can collect multiple views of a scene outside the camera's direct line…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Hadi Alzayer , Kevin Zhang , Brandon Feng , Christopher Metzler , Jia-Bin Huang

Optical sections of the cornea are obtained by illumination with a collimated beam expanded in a fan shape by a small rotary cylindrical lens. The light diffused from the cornea is observed by two cameras and processed in order to yield the…

Medical Physics · Physics 2007-05-23 Jose B. Almeida , Sandra Franco

In this paper, we propose a novel technique to reconstruct 3D surface of an underwater object using stereo images. Reconstructing the 3D surface of an underwater object is really a challenging task due to degraded quality of underwater…

Computer Vision and Pattern Recognition · Computer Science 2012-11-12 C. J. Prabhakar , P. U. Praveen Kumar

We present a new modeling tool for planetary nebulae, based on 3D photoionization calculations. Our goal is to show that all the information provided by observations, regarding kinematics and morphology, have to be consistently accounted…

Astrophysics · Physics 2009-10-31 C. Morisset , R. Gruenwald , S. M. Viegas

Lightweight creation of 3D digital avatars is a highly desirable but challenging task. With only sparse videos of a person under unknown illumination, we propose a method to create relightable and animatable neural avatars, which can be…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Wenbin Lin , Chengwei Zheng , Jun-Hai Yong , Feng Xu

We present a near real-time solution for 3D reconstruction from aerial images captured by consumer UAVs. Our core idea is to simplify the multi-view stereo problem into a series of two-view stereo matching problems. Our method applies to…

Computational Geometry · Computer Science 2019-02-27 Qiaosong Wang

The quality of modern astronomical data, the power of modern computers and the agility of current image-processing software enable the creation of high-quality images in a purely digital form. The combination of these technological…

Astrophysics · Physics 2008-11-26 T. A. Rector , Z. G. Levay , L. M. Frattare , J. English , K. Pu'uohau-Pummill

Interactive visualization and simulation of astrophysical phenomena help astronomers and enable digital planetariums and television documentaries to take their spectators on a journey into deep space to explore the astronomical wonders of…

Instrumentation and Methods for Astrophysics · Physics 2012-05-14 Stephan Wenger , Marco Ament , Wolfgang Steffen , Nico Koning , Daniel Weiskopf , Marcus Magnor

Structured-light three-dimensional (3D) imaging can achieve 3D shape of a stationary object via one or more pixelated array cameras with phase-shifting illumination. In order to extend 3D imaging to moving scenarios, we propose a 3D imaging…

Image and Video Processing · Electrical Eng. & Systems 2019-05-01 Wen-Kai Yu

Recovering the 3D shape of transparent objects using a small number of unconstrained natural images is an ill-posed problem. Complex light paths induced by refraction and reflection have prevented both traditional and deep multiview stereo…

Computer Vision and Pattern Recognition · Computer Science 2020-07-24 Zhengqin Li , Yu-Ying Yeh , Manmohan Chandraker

A method for displaying volumetric images, which exploits our binocular vision and does not require eyewear, is discussed. The display can be rendered as a matrix of pivoting micromirrors irradiated by a light beam; each micromirror focuses…

Optics · Physics 2007-07-04 Oleg G. Semyonov

This study presents a novel approach for generating holograms based on the neural radiance fields (NeRF) technique. Generating three-dimensional (3D) data is difficult in hologram computation. NeRF is a state-of-the-art technique for 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Minsung Kang , Fan Wang , Kai Kumano , Tomoyoshi Ito , Tomoyoshi Shimobaba

We introduce 3D Moments, a new computational photography effect. As input we take a pair of near-duplicate photos, i.e., photos of moving subjects from similar viewpoints, common in people's photo collections. As output, we produce a video…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Qianqian Wang , Zhengqi Li , David Salesin , Noah Snavely , Brian Curless , Janne Kontkanen
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