Dictionary
`of Computer
`Vision and Image
`Processing
`
`R.B. Fisher
`University of Edinburgh
`K. Dawson~Howe
`Trinity College Dublin
`A. Fitzgibbon
`Oxford University
`C. Robertson
`Heriot-Watt University
`E.Trucco
`Heriot-Watt University
`
`John Wiley & Sons, Ltd
`
`Page 1 of 4
`
`SONOS EXHIBIT 1024
`
`

`

`copyright © 2005
`
`John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichest
`West Sussex P019 SSQ, England
`er,
`
`Telephone
`
`( +44) 1243 779777
`
`Email (for orders and customer _service enquiries): cs-books@wiley.co.uk
`Visit our Home Page on www.wiley.com
`
`Reprinted December 2005
`
`All Rights Reserved. No part of this publication may be repro_duced, stored in a retrieval
`tern or transmitted in any fo1?11 or by any ~eans, electromc, mechanical,
`:i:otocopying, rec~rding, scanning or otherwise, except under the ter~s of
`the Copyright, Designs and Patents Act 1988 or under the terms of a hcence issued by
`the Copyright Licensing _Agen~ Ltd, 90 Totte~ham Court Road, London WIT 4LP, UK,
`without the permission m wntmg of the Publisher: Requests to the Publisher should be
`addressed to the Permissions Department, John Wiley & S~ns Ltd, The Atrium, Southern
`Gate, Chichester, West Sussex PO19 SSQ, England, or emailed to permreq@wiley.co.uk
`or faxed to (+44) 1243 770620.
`,
`
`This publication is designed to p~ovide accurate and auth~ritative information in regard
`to the subject matter covered. It 1s sold on the understanding that the Publisher is not
`engaged in rendering professional services. If professional advice or other expert
`assistance is required, the services of a competent professional should be sought.
`
`Other Wiley Editorial OJlices
`
`John Wt.ley & Sons Inc., 111 River Street, Hoboken, NJ 07030, USA
`
`Jossey-Bass, 989 Market Street, San Francisco, CA 94103-1741, USA
`
`Waley-VCH Verlag GmbH, Boschstr. 12, D-69469 Weinheim, Germany
`
`John Waley & Sons Australia Ltd, 42 McDougall Street,
`Milton, Queensland 4064, Australia
`
`John Waley & Sons (Asia) Pte Ltd, 2 Clementi Loop #02-01 ,
`Jin Xing Distripark, Singapore 129809
`
`John Wtley & Sons Canada Ltd, 22 Worcester Road,
`Etobicoke, Ontario, Canada M9W 111
`·
`
`, '
`
`Wtley als_o pu?lishes its Bpoks in a variety of electronic formats. Some content that
`appears m pnnt may not be available in electronic books.
`
`British Library Cataloguing in Publication Data
`
`A catalogue record for this book is available from the British Library
`
`ISBN-10 0-470-01526-8 (PB)
`ISBN-13 978-0-470-01526-1 (PB)
`.ch rry India
`· 9,/0
`Typ
`. eset m 17.Spt Garamond by lntegra Software Services Pvt. Ltd, Pondi e . '
`Pn~ted and bound in Great Britain by Antony Rowe Ltd Chippenham, Wtlts~trebl
`This book ·
`·
`•
`'
`taina e
`fi
`15 pnnted on acid-free paper responsibly manufactured from sus
`d ctiort•
`orestry in which at least two trees are planted for each one used for paper pro u
`
`Page 2 of 4
`
`SONOS EXHIBIT 1024
`
`

`

`shadow effects. The opposite of
`diffuse illumination is directed
`illumination.
`diffuse reflection: Scattering of
`light by a surface in many direc(cid:173)
`tions. Ideal l.ambenian diffu(cid:173)
`sion results in the same energy
`being reflected in every direc(cid:173)
`tion regardless of the direction
`of the incoming light energy.
`
`difJusion smoothing: A
`tech(cid:173)
`nique
`achieving Gaussian
`smoothing as the solution of
`a diffusion equation with the
`image to be filtered as the
`initial boundary condition.
`The advantage is that, unlike
`repeated averaging, diffusion
`smoothing allows
`the con(cid:173)
`struction of a continuous scale
`space.
`digital camera: A camera
`in
`which the image sensing sur(cid:173)
`face is made up of individual
`semiconductor sampling elem(cid:173)
`ents (typically one per pixel
`of the image), and quantized
`versions of the sensed values
`are recorded when an image is
`captured.
`digital elevation map: A sam(cid:173)
`pled and quantized map where
`every point represents a height
`above a reference ground plane
`(i.e., the elevation).
`
`geometry: Geometry
`digital
`(points, lines, angles, surfaces,
`etc.) in a sampled and quantized
`domain.
`digital image: Any sampled and
`quantized image.
`
`41 43 45 51 56 49 45 40
`56 48 65 85 55 52 44 46
`59 77 99 81 127 83 46 56
`52 116 44 54 55 186 163 163
`51 129 46 48 71 164 86 97
`50 85 192 140 167 99 51 44
`57 63 91 126 102 56 54 49
`146 169 213 246 243 139 180 163
`41 44 54 56 47 45 36 54
`
`processing:
`image
`digital
`Image processing restricted to
`the domain of digital images.
`digital signal processor: A class
`of
`co-processors
`designed
`to execute processing oper(cid:173)
`ations on digitized signals
`efficiently. A common char(cid:173)
`acteristic is the provision of a
`fast multiply and accumulate
`function e.g., a+- a+ bx c.
`digital
`s btraction
`angiog(cid:173)
`basic
`technique
`raphy: A
`used in medical image pro(cid:173)
`cessing to detect, visualize and
`inspect blood vessels, based on
`the subtraction of a background
`image from the target image,
`usually where the blood vessels
`are made more visible by using
`
`I
`
`75
`
`Page 3 of 4
`
`SONOS EXHIBIT 1024
`
`

`

`I ,
`
`l t,
`t .
`I~
`/ .
`' ,
`•
`d l ·
`
`I
`
`;.
`
`an X-ray contrast medium. See
`also medical image registration.
`digital terrain map: See digital
`elevation map.
`digital topology: Topology (i.e.,
`how things are connected/
`arranged) in a digital domain
`in a digital image). See
`(e.g.,
`also connectivity.
`digital watermarking: The pro(cid:173)
`cess of en1bedding a signa(cid:173)
`ture/watermark
`into digital
`data. In the domain of digital
`images this is most normally
`done for copyright protection.
`The digital watermark may be
`invisible or visible ( as shown).
`
`digitization: The process of mak(cid:173)
`ing a sampled digital version of
`some analog signal ( such as an
`image). ,.
`dihedral edge: The edge made
`by two planar surfaces. A "fold"
`inasudace:
`
`I
`• I fl I
`
`J
`
`!J.f I' Ill
`If
`IJ
`
`\I .,, ...
`
`,
`dilate operator: The operation
`of expanding a binary or gray(cid:173)
`' scale object with respect to the
`background. This has the effect
`76
`
`.
`offillinginanysmal) hol
`b.
`.
`es an the
`o J~ct(s~and joining any object
`regto~s at are close together
`Most trcquently described
`·
`a.~ a
`h I
`· 1
`morp o ogica tran~formatio
`and is the duaJ of the erc>J~
`operator.
`
`dimensionality: The number of
`dimensions that need to be con(cid:173)
`sidered. For example 3D object
`location is often considered as
`a seven dimensional problem
`(three dimensions for position,
`three for orientation and one
`for the object scale).
`direct least square fitting: Dir(cid:173)
`ect fitting of a model to some
`data by a method that has a
`closed form or globally conver(cid:173)
`gent solution.
`directed
`illumination: Light
`energy that comes from a par(cid:173)
`ticular direction hence causing
`relatively sharp shadows. The
`opposite of this form of illumin(cid:173)
`ation is diffuse illumination.
`directional derivative: A deriv~(cid:173)
`tive taken in a specific direction.
`for instance, the component of
`the gradient along one coordi•
`nate axis. The images on the
`right are the venical and hori(cid:173)
`zontal directional derivatives of
`the image on the left.
`
`Page 4 of 4
`
`SONOS EXHIBIT 1024
`
`