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This paper proposes the design of a custom mirror-based light field camera adapter that is cheap, simple in construction, and accessible. Mirrors of different shape and orientation reflect the scene into an upwards-facing camera to create…

Robotics · Computer Science 2016-12-19 Dorian Tsai , Donald G. Dansereau , Steve Martin , Peter Corke

Directionality in a holographic screen may be useful for projecting images to be seen in complete horizontal parallax. The continuous sequence of views from an object may be transferred from the object and enlarged at the screen giving the…

Optics · Physics 2008-05-08 Jose J. Lunazzi

Polarization imaging is a technique that creates a pixel map of the polarization state in a scene. Although invisible to the human eye, polarization can assist various sensing and computer vision tasks. Existing polarization cameras use…

Image and Video Processing · Electrical Eng. & Systems 2026-03-19 Noa Kraicer , Shay Elmalem , Erez Yosef , Hani Barhum , Raja Giryes

Using spherical mirrors in place of wide-angle cameras allows for cost-effective monitoring of manufacturing processes in hazardous environment, where a camera would normally not operate. This includes environments of high heat, vacuum and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Wladislav Artsimovich , Yoko Hirono

This paper proposes a novel framework integrating the principles of active stereo in standard passive camera systems without a physical pattern projector. We virtually project a pattern over the left and right images according to the sparse…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Luca Bartolomei , Matteo Poggi , Fabio Tosi , Andrea Conti , Stefano Mattoccia

We show a system capable of projecting a video scene on a white-light holographic screen to obtain a kind of image that results in a plane in front of the screen. This holographic screen is mainly a diffractive lens and it is constructed by…

Optics · Physics 2009-11-13 J. J. Lunazzi , D. S. F. Magalhaes , N. I. R. Rivera , R. L. Serra

This paper presents a novel technique for camera calibration using a single view that incorporates a spherical mirror. Leveraging the distinct characteristics of the sphere's contour visible in the image and its reflections, we showcase the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Nissim Barzilay , Ofek Narinsky , Michael Werman

Mirror reflections are common in everyday environments and can provide stereo information within a single capture, as the real and reflected virtual views are visible simultaneously. We exploit this property by treating the reflection as an…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Jing Wu , Zirui Wang , Iro Laina , Victor Adrian Prisacariu

A simple system to make stereo photography or videos based in just two mirrors was made in 1989 and recently adapted to a digital camera setup.

Popular Physics · Physics 2015-03-13 J. J. Lunazzi

We present a 3D printed adapter with planar mirrors for stereo reconstruction using front and back smartphone camera. The adapter presents a practical and low-cost solution for enabling any smartphone to be used as a stereo camera, which is…

Computer Vision and Pattern Recognition · Computer Science 2021-09-27 Kristijan Bartol , David Bojanić , Tomislav Petković , Tomislav Pribanić

The structured light projection technique is a representative active method for 3-D reconstruction, but many researchers face challenges with the intricate projector calibration process. To address this complexity, we employs an additional…

Optics · Physics 2024-03-05 Seung-Jae Son , Yatong An , Jae-Sang Hyun

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

We propose a novel projector-camera system (ProCams) in which each pixel has both projection and capturing capabilities. Our proposed ProCams solves the difficulty of obtaining precise pixel correspondence between the projector and the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Kenta Yamamoto , Daisuke Iwai , Kosuke Sato

Invisible persons are seen in fiction stories only, but in the real world it is proved that invisibility is possible. This paper describes the creation of invisibility with the help of technologies like Optical camouflage; Image based…

Other Computer Science · Computer Science 2014-04-17 Vasireddy Srikanth , Pillem Ramesh

Stereo cameras are a popular choice for obstacle avoidance for outdoor lighweight, low-cost robotics applications. However, they are unable to sense thin and reflective objects well. Currently, many algorithms are tuned to perform well on…

Computer Vision and Pattern Recognition · Computer Science 2019-10-14 John Keller , Sebastian Scherer

In this work, we present a camera configuration for acquiring "stereoscopic dark flash" images: a simultaneous stereo pair in which one camera is a conventional RGB sensor, but the other camera is sensitive to near-infrared and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Jian Wang , Tianfan Xue , Jonathan T. Barron , Jiawen Chen

In this work we present an alternative to a full dome digital projection system. The system presented is based upon a single projector coupled to the optical lens (fisheye and objective lens) to scatter the light onto the dome surface. This…

Instrumentation and Methods for Astrophysics · Physics 2010-05-26 Valdinei Bueno L. Filho , Hildeu Ferreira da AssunÇão , Thiago Oliveira Lima , Alessandro Martins

The paper presents an analysis of the latest developments in the field of stereo vision in the low-cost segment, both for prototypes and for industrial designs. We described the theory of stereo vision and presented information about…

Artificial Intelligence · Computer Science 2021-06-03 R. Ildar , E. Pomazov

In this paper we have put forth an innovative method of obtaining a stereographic image on a single frame using a single lens. This method has been verified experimentally. A preliminary prototype of the same is built with an optimized use…

Optics · Physics 2007-05-23 Kshitija Deshpande , Arvind Paranjapye

Stereo matching is an essential basis for various applications, but most stereo matching methods have poor generalization performance and require a fixed disparity search range. Moreover, current stereo matching methods focus on the scenes…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Jiazhi Liu , Feng Liu
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