ISO/IEC 30137-4:2021 情報技術—ビデオ監視システムでの生体認証の使用—パート4：グラウンドトゥルースとビデオ注釈手順 | ページ 2

Foreword

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This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 37, Biometrics.

A list of all parts in the ISO/IEC 30137 series can be found on the ISO and IEC websites.

Introduction

Considerable improvements in the performance of automated face recognition (AFR) have resulted in applications such as automated border controls, where facial images encoded in ePassports are compared with the face presented by a traveller at a control point. The success of these first generation AFR systems has encouraged suppliers to consider other applications, where the subject is not necessarily aware of the use of biometric comparison and where the environment for collection of images can be far from optimal. The inferior performance in such less-controlled identification applications can necessitate a greater involvement by trained personnel.

The ISO/IEC 30137 series provides guidance on the use of biometric technologies (primarily automated face recognition) in video surveillance systems (VSS) for several scenarios, including real-time operation against watchlists and post-event analysis of video data. The ISO/IEC 30137 series includes guidance on the selection and placement of cameras through to system specification, testing and maintenance. The ISO/IEC 30137 series uses the term VSS to replace the older but commonly used term, closed circuit television (CCTV).

The ISO/IEC 30137 series addresses the annotation of human beings. It is not intended to provide for annotation of non-human objects such as cars, animals, or luggage.

Records conformant to this document can be produced from video in either of the following ways:

• automatically, in which software analyses video and estimates quantities defined in this document, or
• manually, in which human reviewers annotate video with a goal of producing ground truth video annotation, which can be used by a receiving system (i.e. any service or device that decodes, interprets and uses standardized data).

This supports several applications, including:

• People counting:
  • stating of the number of people present in a location,
  • stating of the number of people traversing a given point or volume,
  • stating of population density (e.g. in crowds),
  • measurement of crowd densities,
  • performance of crowd behavioural analyses.

• Automated detection and tracking:

  • automated enrolment (addition) of subjects to a watchlist, exhaustively or after behavioural analysis,
  • detection of subjects, and parts of subjects (e.g. faces),
  • tracking of subjects through time, e.g. following motion in a single video,
  • tracking of subjects appearing through camera networks, including cases where a subject is viewed simultaneously by different cameras, and cases where the subject appears sequentially before several cameras,
  • re-identification, the process of connecting an identity of a subject across two or more video sequences.

• Automated identification:

  • law enforcement, looking for subjects of interest present on watchlists (negative identification, blacklists),
  • law enforcement, applications in review of post-event VSS video from one or multiple cameras against watchlists,
  • private commercial settings, looking for individuals to be given preferential service,
  • identification of cooperative enrolled subjects (positive access control, whitelists).

1 Scope

This document establishes requirements for the annotation of humans, human faces and other body parts, and arbitrary objects appearing in imagery. It specifies the following:

• metadata to be inserted in a video stream;
• encoding of full and partial spatial and temporal ground truth information for:
  • objects present in a video, and
  • objects absent in a video;

• procedures for different annotation of known and unknown subjects.

2 Normative references

There are no normative references in this document.

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:

Bibliography