1、BSI Standards Publication3D Display devicesPart 1-2: Generic Terminology and letter symbolsBS EN 62629-1-2:2013National forewordThis British Standard is the UK implementation of EN 62629-1-2:2013. It isidentical to IEC 62629-1-2:2013.The UK participation in its preparation was entrusted to Technical
2、Committee EPL/47, Semiconductors.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Instituti
3、on 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 73740 4ICS 31.120; 31.260Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments
4、/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62629-1-2:2013EUROPEAN STANDARD EN 62629-1-2 NORME EUROPENNE EUROPISCHE NORM August 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr
5、Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62629-1-2:2013 E ICS 31.120; 31.260 English version 3D Display devices - Part 1-2: G
6、eneric - Terminology and letter symbols (IEC 62629-1-2:2013) Dispositifs daffichage 3D - Partie 1-2 : Gnralits - Terminologie et symboles littraux (CEI 62629-1-2:2013) 3D-Anzeigen Teil 1-2: Allgemein Terminologie und Buchstabensymbole (IEC 62629-1-2:2013) This European Standard was approved by CENEL
7、EC on 2013-08-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standard
8、s may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language a
9、nd notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Ge
10、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62629-1-2:2013EN 62629-1-2:2013 - 2 - Foreword The text of document 110/470/
11、FDIS, future edition 1 of IEC 62629-1-2, prepared by IEC/TC 110 “Electronic display devices“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62629-1-2:2013. The following dates are fixed: latest date by which the document has to be implemented at national level by public
12、ation of an identical national standard or by endorsement (dop) 2014-05-01 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2016-08-01 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
13、hts. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62629-1-2:2013 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the fo
14、llowing notes have to be added for the standards indicated: IEC 62629-12-1 NOTE Harmonised as EN 62629-12-1. IEC 62629-22-1 NOTE Harmonised as EN 62629-22-1. BS EN 62629-1-2:2013 2 62629-1-2 IEC:2013 CONTENTS 1 Scope . 5 2 Terms and definitions . 5 2.1 General terms . 5 2.2 Terms related to componen
15、ts 6 2.3 Terms related to performance specifications 7 Annex A (informative) Definition guideline for terms which include “image”, “view” or “vision” . 9 Annex B (informative) Classification of 3D display types 12 Annex C (informative) Relation between depth perception and 3D display . 14 Annex D (i
16、nformative) Lobe . 15 Bibliography 16 Figure A.1 Difference between “image” and “view” . 9 Figure A.2 Structure of multi-view display 10 Figure A.3 Stereoscopic images and stereoscopic views 11 Figure B.1 Classification of 3D display . 13 Figure C.1 Depth perception and 3D display 14 Figure D.1 Lobe
17、 of autostereoscopic display 15 BS EN 62629-1-2:201362629-1-2 IEC:2013 5 3D DISPLAY DEVICES Part 1-2: Generic Terminology and letter symbols 1 Scope This part of IEC 62629 provides a list of the terminologies that are frequently used in describing 3D display technologies in the IEC 62629 series. Ter
18、ms for various 3D display technologies on stereoscopic, autostereoscopic, volumetric, and holographic displays are included. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 General terms 2.1.1 3D display display device giving depth perception
19、 with physiological depth cues Note 1 to entry: Physiological depth cues include accommodation, convergence, binocular parallax, and motion parallax. The 3D display provides users with all or some of the physiological depth cues so that they can perceive depth. Physiological depth cues should be dis
20、tinguished from pictorial depth cues which can also be provided by the usual 2D displays. Pictorial depth cues are features in an image that give a hint of the depth. Examples of pictorial depth cues are texture gradient, shadow, occlusion, and vanishing lines. 2.1.2 stereoscopic display 3D display
21、providing binocular parallax Note 1 to entry: See “autostereoscopic display”. For classification of the 3D displays, see Annex B. 2.1.3 autostereoscopic display stereoscopic display that requires no viewing aids Note 1 to entry: See “stereoscopic display”. For classification of the 3D displays, see
22、Annex B. 2.1.4 two-view display two-view autostereoscopic display autostereoscopic display providing one stereoscopic view Note 1 to entry: See “multi-view display”. 2.1.5 multi-view display multi-view autostereoscopic display autostereoscopic display providing multiple stereoscopic views Note 1 to
23、entry: See “two-view display”. BS EN 62629-1-2:2013 6 62629-1-2 IEC:2013 2.1.6 integral imaging display integral imaging autostereoscopic display autostereoscopic display that reproduces ray space 2.1.7 volumetric display autostereoscopic display which forms a set of pixels distributed in space 2.1.
24、8 stereoscopic image pair of images with parallax shown on a stereoscopic display Note 1 to entry: Stereoscopic images are made by capturing images of an object from slightly different positions and they are used as output of a stereoscopic display. See Annex A. 2.1.9 stereoscopic view pair of sight
25、s provided by a stereoscopic display, which induce stereopsis Note 1 to entry: Stereoscopic view is generally not the same as stereoscopic image. In some cases more than a single monocular image is projected on the retina of an eye. See Annex A. 2.1.10 monocular image one part of a stereoscopic imag
26、e Note 1 to entry: See A.2.2. 2.1.11 monocular view one part of a stereoscopic view Note 1 to entry: See A.2.2. 2.1.12 designed viewing distance viewing distance recommended by the manufacturer of the 3D display Note 1 to entry: For a detailed measurement procedure, see IEC 62629-22-1. 2.1.13 lobe s
27、pace wherein one or multiple stereoscopic images are projected in correct angular order by an autostereoscopic display Note 1 to entry: See Annex D. 2.1.14 ray space spatial and angular distribution of light reflected from the surface of an object 2.2 Terms related to components 2.2.1 active glasses
28、 glasses whose left and right lenses alternate their optical characteristics, synchronizing with displayed sequential images on a stereoscopic display (e.g. synchronizing with TV fields, TV frame, etc.) to separate the displayed images into left and right monocular views BS EN 62629-1-2:201362629-1-
29、2 IEC:2013 7 Note 1 to entry: Usually left and right images are displayed alternately on a screen. When a left image is displayed, the left lens of the active glasses is turned on to transmit the image and the right lens is turned off to cut off the image. The lenses do not need a function for focus
30、ing light. 2.2.2 passive glasses glasses whose left and right lenses have complementary but fixed optical characteristics to separate displayed images on a stereoscopic display into left and right monocular views Note 1 to entry: Usually spatially divided left and right images are displayed at the s
31、ame time on a screen; each divided segment in the screen emits polarized light to display the images and the left and right segments have orthogonal polarization. The left lens of the passive glasses has a polarization to pass the emitted light of the left images and to cut off that of the right ima
32、ges, while the right lens passes the right images and cuts off the left images. 2.2.3 polarized glasses passive glasses equipped with two polarizers whose polarization properties are opposite to each other Note 1 to entry: See “linearly polarized glasses” and “circularly polarized glasses”. 2.2.4 li
33、nearly polarized glasses passive glasses equipped with two linear polarizers whose polarizing directions are orthogonal to each other Note 1 to entry: See “polarized glasses” and “circularly polarized glasses”. 2.2.5 circularly polarized glasses passive glasses equipped with two circular polarizers
34、whose rotational directions of circular polarization are orthogonal to each other Note 1 to entry: See “polarized glasses” and “linearly polarized glasses”. 2.2.6 patterned retarder array of two kinds of optical phase retarders arranged alternatively in a plane 2.2.7 parallax barrier barrier with an
35、 array of slits for providing one or multiple stereoscopic views 2.2.8 lenticular lens lenticular sheet set of semi-cylindrical lenses that are arranged side by side in a plane 2.2.9 fly-eye lens set of lenslets that are arranged in a plane 2.3 Terms related to performance specifications 2.3.1 inter
36、ocular chromatic difference difference in chromaticity between left and right monocular views Note 1 to entry: For a detailed measurement procedure, see IEC 62629-12-1. BS EN 62629-1-2:2013 8 62629-1-2 IEC:2013 2.3.2 interocular contrast difference difference in contrast between left and right monoc
37、ular views Note 1 to entry: For a detailed measurement procedure, see IEC 62629-12-1. 2.3.3 interocular luminance difference difference in luminance between left and right monocular views Note 1 to entry: For a detailed measurement procedure, see IEC 62629-12-1 2.3.4 interocular crosstalk luminance
38、leakage into the observed monocular view of an eye from the monocular image for the other eye Note 1 to entry: For a detailed measurement procedure, see IEC 62629-12-1. 2.3.5 3D crosstalk luminance leakage into an observed monocular view from other monocular images that are not designed to be seen a
39、t the observing position Note 1 to entry: For a detailed measurement procedure, see IEC 62629-22-1. BS EN 62629-1-2:201362629-1-2 IEC:2013 9 Annex A (informative) Definition guideline for terms which include “image”, “view” or “vision” A.1 General The terminology in Clause 2 avoids the definition of
40、 such short words as “image,” “view” or “vision” (even though those words are used in many terms in Clause 2), because defining them explicitly ends up confusing readers, as these words have multiple meanings in daily usage. Instead, a brief description on how a term which includes one of these word
41、s is defined is presented here to relieve readers confusion by indicating the reason why the short word causes trouble. A.2 Definition guideline A.2.1 Stereoscopic image and stereoscopic view “Image” and “view” are treated as an output from the display device and an input to a human eye respectively
42、. However, “image” is allowed to have another meaning of perceived object in the brain as an exception because “image” is also treated as a product of “vision”, which means the brains information processing of the optical input to the eyes (see Figure A.1). Multi-view autostereoscopic displays make
43、use of “group pixels,” a sequence of pixels that is periodically arranged on the horizontal line of the display screen to control the emission of light rays (see Figure A.2). Each ithpixel in the “group pixels” emits a light ray in the specified direction and thus all of ithpixels have the same ligh
44、t direction. An “image” is composed of a group of light rays in the same specified direction and therefore any two of the “images” derive from different light sources. This means that “images” are mutually independent. On the other hand, a human eye generally receives plural “images” because it has
45、no filter that selects a specified “image” and thus neighboring “views” are supposed to include the same “image.” This means that “views” are not mutually independent. Readers confusion may come from unawareness of the difference between “image” and “view,” or readers may confuse what is presented t
46、o people with what is observed by people. Figure A.1 Difference between “image” and “view” (a) Object (b) Image (c) View (d) Image (perceived) Output from display Input to an eye Perceived object IEC 1582/13 BS EN 62629-1-2:2013 10 62629-1-2 IEC:2013 Figure A.2 Structure of multi-view display1A.2.2
47、Convention in using the plural form of stereoscopic image and stereoscopic view In this standard, “stereoscopic image” and “stereoscopic view” mean a pair of “images” and “views” as shown in Figure A.3. Therefore “stereoscopic image” and “stereoscopic view” include two “monocular images” and “monocu
48、lar views”, respectively. The stereoscopic display using glasses and the two-view display present a single “stereoscopic view” in this sense. The multi-view display presents a collection of “stereoscopic views”. 1Taken from IEC 62629-22-1. Group pixels attached to a lenslet Lens sheet (a) Test image
49、 Im1Group pixels attached to a lenslet (b) Test image ImNLight direction Light direction Display screen 1stlight rays Nthlight rays Lenslet 1stpixel (the right end in the group) Nthpixel (the left end in the group) IEC 1583/13 BS EN 62629-1-2:201362629-1-2 IEC:2013 11 stereoscopic display using glassesstereoscopic imagemonocular imagestereoscopic viewmonocular viewglassesstereoscopic imagemulti-view displaystereoscopic imagesstereoscopic imagestereoscopic imagemonocular imagestereoscopi
