PDF-Parallax-tolerantImageStitchingFanZhangandFengLiuDepartmentofComputerS

aInputimages bAutoStitch cAPAP27 dOurresultFigure1ParallaxprobleminimagestitchingAlltheresultsarepartiallycroppedforthesakeoflayoutForinputimageswithlargeparallaxhomographybasedmethods. Irani P Anandan and D Weinshall Dept of Applied Math and CS The Weizmann Inst of Science Rehovot Israel iraniwisdomweizmannacil Microsoft Research One Microsoft Way Redmond WA 98052 USA anandanmicrosoftcom Institute of Computer Science Hebrew Univ Copyright 2012. John Mandrola. Parallax…. …the . effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g., through the viewfinder and the lens of a camera.. This triangle should be 4,500 times longer!. d . (distance to star) . is in parsec units . 1 parsec = 206,265 . x. 1 A.U.. ab. . (distance Earth to Sun) . has to be in Astronomical Units (A.U.). p. Cosmic parallax. Syksy Räsänen. University of Helsinki. Department of Physics. . and. The Helsinki Institute of Physics. 1. arXiv:1312.5738. AlbaNova, University of Stockholm, May 13, 2014. Change of viewpoint. Key Ideas. Distance is the most important & most difficult quantity to measure in Astronomy. Method of Trigonometric Parallaxes. Direct geometric method of finding distances. Units of Cosmic Distance:. Size of the Earth (Geometry!!!!!). Astronomical units (a.u.). Parsecs (pc). Light Years (ly). Measuring Earth - Geometry. . = s/r. Two wells E-W. Measure s. Time sun. /2 = t/24 hr. Measuring Earth-Mars:. Copyright Copyright Copyright . Microlens. Detection of a Massive Remnant in a Well-separated Binary . . Yossi . Shvartzvald. . Jet Propulsion Laboratory, . California Institute of Technology. Measurements, Accuracy and Errors. Vocabulary. Measurement magnitude quantitative. Qualitative precision accuracy. Parallax significant figures scientific notation. Length volume area. Constants electromagnetic spectrum . Explain what parallax is. Give an example how parallax occurs. Locate an image in a plane mirror. Optics - Parallax. Parallax is a difference in the apparent position of an object due to the motion of an observer.. Distances:. Parallax Detected!. . The Problem Faced by Astronomers. [cast your mind back to the 1700s and 1800s]. There are . hundreds of thousands . of stars visible through small telescopes. Only a tiny fraction of them will display measureable heliocentric parallax -- and you don’t know which they are!.