'Focal lengths' diaporamas de présentation

The plan for today

The plan for today. Camera matrix Part A) Notation, preprocessing, and basic concepts. Part B) 4 Stereo Algorithms. Slides are courtesy of Prof. Ronen Basri . Stereo Vision. Objective: 3D reconstruction Input: 2 (or more) images taken with calibrated cameras

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12/01/11

How the Kinect Works. 12/01/11. T2. Computational Photography Derek Hoiem, University of Illinois. Photo frame-grabbed from: http:// www.blisteredthumbs.net/2010/11/dance-central-angry-review. Kinect Device. Kinect Device. illustration source: primesense.com. What the Kinect does.

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1. Is 90mm a wide angle lens or a telephoto lens?

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Refraction & Lenses

Refraction & Lenses. Refraction of Light. When a ray of light traveling through a transparent medium encounters a boundary leading into another transparent medium, part of the ray is reflected and part of the ray enters the second medium

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LIGHT AND COLOR SYLLABUS

LIGHT AND COLOR SYLLABUS. CYNTHIA MARTONE JAMES C. LOPRESTO. INTRODUCTION. Quiz every Thursday Labs (class exercises) Power Point Presentations (30 minutes) Final Exam (as Scheduled). POWER POINT TOPICS. Telescopes Cameras Lasers Holograms Stimulated Emission The Interferometer

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Telescopes and Spacecraft

Telescopes and Spacecraft. Astronomy 311 Professor Lee Carkner Lecture 7. How Do We Learn About The Solar System?. View from Earth: View remotely: Other methods: find pieces of solar system that have visited us (meteorite). How Do Telescopes Work?. Telescopes:

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Geometrical Optics

k r. k t. k i. n 1. n 2. Geometrical Optics. Represent EM radiation with lines in direction of propagation (parallel to k) neglect interference/ diffraction effects often gives useful picture of basic optical properties of a system When ? << linear dimensions of an interface.

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Intro to Accelerator Physics (bonus Material)

Intro to Accelerator Physics (bonus Material). Eric Prebys Fermi National Accelerator Laboratory NIU Phy 790 Guest Lecture. Outline (Grab-bag of topics). Off-momentum particles Matching and insertions Luminosity and colliding beams Longitudinal motion A word about electrons vs. protons.

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Lenses

Lenses. Lenses define 2 important things: Angle of view (focal length) Aperture. Focusing A look at the overall camera system. Film/Sensor Where the light is recorded. Lens Bends the light. Subject Source of light. Trajectory of light. Result:. Light converges at sensor.

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Converging and Diverging Lenses

Converging and Diverging Lenses. SNC 2P1. Reflection Quiz. First we need to take up the Reflection Quiz. Correct your answers carefully so that you can use the quiz to help you study for the unit test. Many of the questions will be the same. Converging and Diverging Lenses.

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Coherent X-ray Imaging Instrument

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Announcements HW set 9 due this week; covers Ch 23 and Ch 24.1-4 Office hours:

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THE HUMAN EYE

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Week 7 Quiz

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Off Momentum Particles

Off Momentum Particles. Eric Prebys, FNAL. Off-Momentum Particles. Our previous discussion implicitly assumed that all particles were at the same momentum Each quad has a constant focal length There is a single nominal trajectory

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LENS

LENS. LENS. any transparent object having two nonparallel curved surfaces or one plane surface and one curved surface. Converging Lenses - thicker in middle than in the edge. These lenses converge light to a real focus. Diverging Lenses - thicker at edge than in middle. double concave.

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Refraction and Lenses

Refraction and Lenses. 7 SCIENCE. Review: What is refraction?. Refraction occurs when light bends Light bends as it passes from one substance to another Ex. A straw in a glass into water Refraction can be caused by a lens

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