ISO/DIS 17215-3

Road vehicles -- Video communication interface for cameras (VCIC)

Véhicules routiers -- Interface de communication vidéo pour caméras (ICVC)

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 17215-3
ISO/TC 22/SC 31 Secretariat: DIN
Voting begins on: Voting terminates on:
2020-06-10 2020-09-02
Road vehicles — Video communication interface for
cameras (VCIC) —
Part 3:
Camera message dictionary
Véhicules routiers — Interface de communication vidéo pour caméras (ICVC) —
Partie 3: Dictionnaire de message de caméra
ICS: 43.040.15
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
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ISO/DIS 17215-3:2020(E)
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NOTIFICATION OF ANY RELEVANT PATENT
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PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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ISO/DIS 17215-3:2020(E)
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© ISO 2020

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ISO/DIS 17215-3:2020(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

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

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

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Abbreviations........................................................................................................................................................................................................... 3

5 Conventions ............................................................................................................................................................................................................... 3

6 Overview of ISO 17215 ................................................................................................................................................................................... 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Document overview and structure ........................................................................................................................................ 4

6.3 Open Systems Interconnection (OSI) model ................................................................................................................. 4

6.4 Document reference according to OSI model ............................................................................................................... 4

7 Camera application interface (OSI layer 7) ............................................................................................................................... 5

7.1 Specific properties ............................................................................................................................................................................... 5

7.2 API principles ........................................................................................................................................................................................... 6

7.2.1 Image cropping and windowing ......................................................................................................................... 6

7.3 API data types .......................................................................................................................................................................................... 7

7.4 API Return codes ................................................................................................................................................................................... 7

7.5 API enumerations ................................................................................................................................................................................. 7

7.5.1 enumeration eMethodID ........................................................................................................................................... 7

7.5.2 enumeration eEventGroupType ......................................................................................................................... 8

7.5.3 enumeration eCamErrorCodes ............................................................................................................................ 9

7.5.4 enumeration eCameraMode................................................................................................................................10

7.5.5 enumeration eControlIndex ................................................................................................................................10

7.5.6 enumeration eControlSupportedModes ...................................................................................................10

7.5.7 enumeration eControlMode ................................................................................................................................11

7.5.8 enumeration ePersistentStorageID ..............................................................................................................11

7.6 API structures .......................................................................................................................................................................................12

7.6.1 structure sPixelPosition ..........................................................................................................................................12

7.6.2 structure sPixelMap ...................................................................................................................................................12

7.6.3 structure sRectangle ..................................................................................................................................................13

7.6.4 structure sImageDimension ................................................................................................................................13

7.6.5 structure sImagerRegister ....................................................................................................................................13

7.6.6 structure sImagerRegisterBlock .....................................................................................................................13

7.6.7 structure sImagerCharacteristic .....................................................................................................................14

7.6.8 structure sIntrinsicCamParam ..........................................................................................................................14

7.6.9 structure sExtrinsicCamParam.........................................................................................................................15

7.6.10 structure sPersistentEntryList .........................................................................................................................16

7.6.11 structure sPersistentStorageEntry ................................................................................................................16

7.6.12 structure sTimeStamp .................. ......................................................................................................................... ...17

7.6.13 structure sDatasheet .................................................................................................................................................17

7.6.14 structure sRegionOfInterest ...............................................................................................................................17

7.6.15 structure sVideoFormat ..........................................................................................................................................18

7.6.16 structure sHistogramFormat ..............................................................................................................................19

7.6.17 structure sHistogrammContent .......................................................................................................................20

7.6.18 structure sVideoContent ........................................................................................................................................21

7.6.19 Structure sControlMode .........................................................................................................................................22

7.6.20 structure sUnsignedCtl ............................................................................................................................................22

7.6.21 structure sSignedCtl ...................................................................................................................................................22

7.6.22 structure sCombinedCtl ..........................................................................................................................................22

7.6.23 structure sCamControl.............................................................................................................................................22

7.6.24 structure sCamStatus ................................................................................................................................................23

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ISO/DIS 17215-3:2020(E)

7.6.25 Temperature .....................................................................................................................................................................23

7.7 API reference .........................................................................................................................................................................................26

7.7.1 getDataSheet (MethodID 0x0001) ................................................................................................................26

7.7.2 getCamStatus (MethodID 0x0002) ...............................................................................................................26

7.7.3 setCamMode (MethodID 0x0003) .................................................................................................................27

7.7.4 setCamExclusive (MethodID 0x0011 ..........................................................................................................27

7.7.5 eraseCamExclusive (MethodID 0x0019) ..................................................................................................28

7.7.6 setHostParameters (MethodID 0x0022) ..................................................................................................28

7.7.7 getHostParameters (MethodID 0x0024) .................................................................................................28

7.7.8 eraseHostParameters (MethodID 0x0029)............................................................................................29

7.7.9 setRegionOfInterest (MethodID 0x0101) ...............................................................................................29

7.7.10 setRegionsOfInterest (MethodID 0x0102) .............................................................................................30

7.7.11 getRegionOfInterest (MethodID 0x0103) ...............................................................................................30

7.7.12 getRegionsOfInterest (MethodID 0x0104).............................................................................................31

7.7.13 eraseRegionOfInterest (MethodID 0x0109) .........................................................................................31

7.7.14 setVideoFormat (MethodID 0x0111) ..........................................................................................................32

7.7.15 getVideoFormat (MethodID 0x0113) .........................................................................................................32

7.7.16 eraseVideoFormat (MethodID 0x0119) ...................................................................................................33

7.7.17 setHistogramFormat (MethodID 0x0121) ..............................................................................................33

7.7.18 getHistogrammFormat (MethodID 0x0123) ........................................................................................33

7.7.19 eraseHistogramFormat (MethodID 0x0129) .......................................................................................34

7.7.20 SubscribeROIVideo (MethodID 0x0131) .................................................................................................34

7.7.21 UnSubscribeROIVideo (MethodID 0x0132) ..........................................................................................35

7.7.22 SubscribeROIHistogram (MethodID 0x0133) .....................................................................................35

7.7.23 UnSubscribeROIHistogram (MethodID 0x0134) ..............................................................................36

7.7.24 setCamControl (MethodID 0x0201) ............................................................................................................36

7.7.25 setCamControls (MethodID 0x0202) ..........................................................................................................36

7.7.26 getCamControl (MethodID 0x0203) ............................................................................................................37

7.7.27 getCamControls (MethodID 0x0204)..........................................................................................................37

7.7.28 setCamRegister (MethodID 0x0301)...........................................................................................................38

7.7.29 setCamRegisters (MethodID 0x0302) ........................................................................................................38

7.7.30 getCamRegister (MethodID 0x0303) ..........................................................................................................39

7.7.31 getCamRegisters (MethodID 0x0304) ........................................................................................................39

7.7.32 setUsedRegisterSet (MethodID 0x0305) .................................................................................................40

7.8 Programming model for SOME/IP ......................................................................................................................................40

7.8.1 General...................................................................................................................................................................................41

7.8.2 Startup behaviour ........................................................................................................................................................41

7.8.3 Service discovery ..........................................................................................................................................................41

7.8.4 Event group handling ................................................................................................................................................44

7.9 PDU examples for some/IP .......................................................................................................................................................45

7.9.1 Request and response sequence (SOME/IP) ........................................................................................45

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ISO/DIS 17215-3:2020(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 22, Road vehicles, Subcommittee SC 31,

Data communication.

This second edition cancels and replaces the first edition (ISO 17215-3:2014), which has been technically

revised.
The main changes compared to the previous edition are as follows:
— Corrections of equations and scaling in clause 7.6.8;
— Editorial adoptions and corrections.
A list of all parts in the ISO 17215 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.
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ISO/DIS 17215-3:2020(E)
Introduction

Driver assistance systems are more and more common in road vehicles. From the beginning, cameras

were part of this trend. Analogue cameras were used in the beginning because of lower complexity of

the first systems. With increasing demand for more advanced functionality, digital image processing

has been introduced. So-called one box design cameras (combining a digital image sensor and a

processing unit) appeared in the vehicles.

Currently, the market demands such systems with multiple functions. Even different viewing directions

are in use. It seems to be common sense that 6 up to 12 cameras in a single vehicle will be seen in the

next future. Out of this and the limitation in size, power consumption, etc. it will lead to designs where

the cameras are separated from the processing unit. Therefore, a high-performance digital interface

between camera and processing unit is necessary.

This Document has been established in order to define the use cases, the communication protocol,

and the physical layer requirements of a video communication interface for cameras, which covers the

needs of driver assistance applications.
The video communication interface for cameras

— incorporates the needs of the whole life cycle of an automotive grade digital camera,

— utilizes existing standards to define a long-term stable state-of-art video communication interface

for cameras usable for operating and diagnosis purpose,

— can be easily adapted to new physical data link layers including wired and wireless connections by

using existing adaption layers, and
— is compatible with AUTOSAR.

This part of ISO 17215 is related to the general information and use case definition. This is a general

overview Document which is not related to the OSI model.

To achieve this, it is based on the Open Systems Interconnection (OSI) basic reference model specified

in ISO/IEC 7498-1 and ISO/IEC 10731, which structures communication systems into seven layers.

When mapped on this model, the protocol and physical layer requirements specified by this Document,

in accordance with Table 1 are broken into following layers:
— application (layer 7), specified in ISO 17215-3;
— presentation layer (layer 6), specified in ISO 17215-2;
— session layer (layer 5), specified in ISO 17215-2;
— transport protocol (layer 4), specified in ISO 17215-4, ISO 13400-2;
— network layer (layer 3), specified in ISO 17215-4, ISO 13400-2;
— data link layer (layer 2), specified in ISO 17215-4, ISO 13400-3;
— physical layer (layer 1), specified in ISO 17215-4, ISO 13400-3.
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ISO/DIS 17215-3:2020(E)
Table 1 — Specifications applicable to the OSI layers

Applicability OSI 7 layers Video communication interface for cameras Camera diagnostics

Seven layers Application (layer 7) ISO 17215-3
according to
Presentation (layer 6) ISO 17215-2
ISO 7498–1 and
Session (layer 5) ISO 17215-2
ISO/IEC 10731
Transport (layer 4) ISO 17215-4 Other future interface ISO 13400-2
standards
Network (layer 3)
Data link (layer 2) ISO 17215-4 ISO 13400-3
Physical (layer 1)

ISO 17215-1 has been established in order to define the use cases for vehicle communication systems

implemented on a video communication interface for cameras; it is an overall Document not related to

the OSI model.

ISO 17215-3 covers the application layer implementation of the video communication interface for

cameras; it includes the API.

ISO 17215-2 covers the presentation layer implementation of the video communication interface for

cameras.

ISO 17215-4 is the common standard for the OSI layers 1 to 4 for video communication interface for

cameras. It complements ISO 13400 2 and ISO 13400 3 and adds the requirement for video transmission

over Ethernet.

ISO 17215-2 and ISO 7215-3 (OSI layer 5 to 7) services have been defined to be independent of the

ISO 17215-4 (OSI layer 1 to 4) implementation. Therefore, ISO 17215-4 could be replaced by other

future communication Document.
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DRAFT INTERNATIONAL STANDARD ISO/DIS 17215-3:2020(E)
Road vehicles — Video communication interface for
cameras (VCIC) —
Part 3:
Camera message dictionary
1 Scope

This document specifies the standardized camera messages and data types used by a VCIC camera (OSI

Layer 7).

The scope of the camera application interface (API) and its context are shown in Figure 1.

Applications hosted on ECUs want to communicate with one or more cameras (e.g. “Ask camera for

parameters.”). If the applications can use standardized services supported by the cameras (API layer

7), the development of a vision application should be independent of the camera used. The services can

be implemented by general libraries.
The definition of streaming data is not an issue of this API.
Figure 1 — Overview of ISO 17215

The general terminology defined in ISO 17215-1 is also used in this part of ISO 17215.

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ISO/DIS 17215-3:2020(E)
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°7498-1, Information processing systems — Open systems interconnection — Basic reference model

ISO/IEC 10731, Information technology — Open Systems Interconnection — Basic Reference Model —

Conventions for the definition of OSI services

ISO 13400-2, Road vehicles — Diagnostic communication over Internet Protocol (DoIP) — Part 2: Transport

protocol and network layer services

ISO 13400-3, Road vehicles — Diagnostic communication over Internet Protocol (DoIP) — Part 3: Wired

vehicle interface based on IEEE 802.3

ISO 17215-1, Road vehicles — Video communication interface for cameras (VCIC) — Part 1: General

information and use case definition

ISO 17215-2, Road vehicles — Video communication interface for cameras (VCIC) — Part 2: Service

discovery and control

ISO 17215-4, Road vehicles — Video communication interface for cameras (VCIC) — Part 4: Implementation

of communication requirements
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 .electropedia .org/
3.1
camera identification number

individual camera identification number that identifies the supplier, camera type, and individual

camera (e.g. MEE-32140-194565432-DD2RT supplier, camera type, serial number)
3.2
camera register
internal HW registers of the camera
3.3
extrinsic parameters

denotes the coordinate system transformations from 3D world (vehicle) coordinates (m,°) to 3D-camera

coordinates (m,°)
3.4
focal length
distance over which initially collimated rays are brought to a focus
3.5
frame rate
update rate per time of camera images
3.6
global shutter
exposure that exposes all pixels at the same time
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ISO/DIS 17215-3:2020(E)
3.7
histogram

type of histogram that acts as a graphical representation of the tonal distribution in a digital image

3.8
intrinsic camera parameters

denote the coordinate system transformations from 3D camera (m) to 2D pixel coordinates (pixel)

4 Abbreviations
API Application Programming Interface
AEC Automatic Exposure Control
AGC Automatic Gain Control
DAS Driver Assistance System
ECU Electronic Control Unit
HDR High Dynamic Range
HMI Human Machine Interface
ISO International Organization for Standardization
LDR Low Dynamic Range
MAC Media Access Control
OSI Open Systems Interconnection
PSE Persistent storage entry
ROI Region of Interest, i.e. sub-part of overall image
RPC Remote Procedure Call
5 Conventions

This document is based on the conventions as specified in the OSI service conventions ISO/IEC°10731

as they apply for physical layer, protocol, network, and transport protocol and diagnostic services.

6 Overview of ISO 17215
6.1 General

This document has been established in order to implement a standardized video communication

interface for cameras on a communication data link.
The focus of this document is using existing protocols.
— Figure 1 specifies the relation to the other parts of this document;
— Figure 2 specifies the relation of this document to existing protocols.
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ISO/DIS 17215-3:2020(E)
6.2 Document overview and structure

This document consists of a set of four sub-documents, which provide all references and requirements

to support the implementation of a standardized video communication interface for cameras according

to the standard at hand.

— ISO 17215-1 provides an overview of the document set and structure along with use case definitions

and a common set of resources (definitions, references) for use by all subsequent parts;

— ISO 17215-2 specifies the discovery and control of services provided by a VCIC camera;

— ISO 17215-3 specifies the sta
...