Traditional Chinese medicine -- Computerized tongue image analysis system

This document specifies the performance criteria of peripheral visual instruments in the computerized tongue image analysis system (CTIS), including colour reproduction, distortion and resolution.

Médecine traditionnelle chinoise -- Système d’analyse d’images numérisées de la langue

General Information

Status
Published
Publication Date
20-Oct-2020
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
03-Sep-2020
Completion Date
03-Sep-2020
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ISO/TS 20498-4:2020 - Traditional Chinese medicine -- Computerized tongue image analysis system
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TECHNICAL ISO/TS
SPECIFICATION 20498-4
First edition
2020-10
Traditional Chinese medicine —
Computerized tongue image analysis
system —
Part 4:
Peripheral visual instruments
Médecine traditionnelle chinoise — Système d’analyse d’images
numérisées de la langue —
Partie 4: Instruments visuels périphériques
Reference number
ISO/TS 20498-4:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO/TS 20498-4:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 20498-4:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Performance .............................................................................................................................................................................................................. 2

4.1 Colour reproduction ........................................................................................................................................................................... 2

4.2 Display resolution ................................................................................................................................................................................ 2

4.3 Distortion ..................................................................................................................................................................................................... 2

4.4 Viewing environment ........................................................................................................................................................................ 3

Annex A (informative) sRGB values of colour chart .............................................................................................................................. 5

Bibliography ................................................................................................................................................................................................................................ 6

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/TS 20498-4:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 249, Traditional Chinese medicine.

A list of all parts in the ISO 20498 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
TECHNICAL SPECIFICATION ISO/TS 20498-4:2020(E)
Traditional Chinese medicine — Computerized tongue
image analysis system —
Part 4:
Peripheral visual instruments
1 Scope

This document specifies the performance criteria of peripheral visual instruments in the computerized

tongue image analysis system (CTIS), including colour reproduction, distortion and resolution.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO/TS 20498-3, Computerized tongue image analysis system — Part 3: Colour chart
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:/
...

TECHNICAL ISO/TS
SPECIFICATION 20498-4
First edition
Traditional Chinese medicine —
Computerized tongue image analysis
system —
Part 4:
Peripheral visual instruments
Médecine traditionnelle chinoise — Système d’analyse d’images
numérisées de la langue —
Partie 4: Instruments visuels périphériques
PROOF/ÉPREUVE
Reference number
ISO/TS 20498-4:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO/TS 20498-4:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 20498-4:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Performance .............................................................................................................................................................................................................. 2

4.1 Colour reproduction ........................................................................................................................................................................... 2

4.2 Display resolution ................................................................................................................................................................................ 2

4.3 Distortion ..................................................................................................................................................................................................... 2

4.4 Viewing environment ........................................................................................................................................................................ 4

Annex A (informative) sRGB values of colour chart .............................................................................................................................. 5

Bibliography ................................................................................................................................................................................................................................ 6

© ISO 2020 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO/TS 20498-4:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 249, Traditional Chinese medicine.

A list of all parts in the ISO 20498 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv PROOF/ÉPREUVE © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
TECHNICAL SPECIFICATION ISO/TS 20498-4:2020(E)
Traditional Chinese medicine — Computerized tongue
image analysis system —
Part 4:
Peripheral visual instruments
1 Scope

This document specifies the performance criteria of peripheral visual instruments in the computerized

tongue image analysis system (CTIS), including colour reproduction, distortion and resolution.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO/TS 20498-3, Computerized tongue image analysis system — Part 3: Colour chart
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedi
...

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