ISO/IEC TR 29794-5:2010

Name: ISO/IEC TR 29794-5:2010 — Information technology — Biometric sample quality — Part 5: Face image data
SKU: ISO/IEC TR 29794-5:2010
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Information technology — Biometric sample quality — Part 5: Face image data

Название (английский):

Information technology — Biometric sample quality — Part 5: Face image data

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 15
Дата публикации:: 22 марта 2010 г.
Издание:: ISO/IEC TR 29794 edition 1 version 1
ICS:: 35.040

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Описание (английский):

For aspects of quality specific to facial images, ISO/IEC TR 29794-5:2010: specifies terms and definitions that are useful in the specification, use and testing of face image quality metrics; defines the purpose, intent, and interpretation of face image quality scores. Performance assessment of quality algorithms and standardization of quality algorithms are outside the scope of ISO/IEC TR 29794-5:2010.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/IEC TR 29794-5:2010 - "Information technology - Biometric sample quality - Part 5: Face image data" is an ISO/IEC Technical Report that defines concepts, terminology and recommended approaches for assessing face image quality in the context of automated face recognition systems. It explains the purpose and interpretation of face quality scores (FQS) and describes how face quality assessment algorithms (FQAA) can produce objective, quantitative quality metrics. The report does not standardize quality algorithms nor prescribe performance test methods.

Key topics

Terms and definitions relevant to face image quality, including comparison score, Face Quality Assessment Algorithm (FQAA), Face Quality Score (FQS), Quality Score Normalization (QSN) and related abbreviations.

Approaches to face image quality: defining quality relative to automated face recognition performance and describing how quality measures can guide preprocessing, matcher selection or thresholding.

Categorization framework separating factors that affect quality:

Subject characteristics (static vs dynamic) - anatomical features, pose, expression, occlusion (e.g., hair or glasses), eye closure.
Acquisition process properties (static vs dynamic) - sensor/camera characteristics, resolution, compression, illumination, background motion.

Facial image quality analysis covering measurable image properties and appearance attributes:

Image size and resolution, noise, contrast, brightness, exposure, focus/blur, color, and subject-camera distance.
Dynamic subject behaviours and asymmetries (e.g., head pose, facial expression) and scene-level factors (uneven lighting, moving objects).

Quality score generation concept: atomic FQSs for individual characteristics are fused into a final quality score intended to predict recognition metrics (false match/false non-match risk) without prescribing a single algorithm.

Practical applications and users

ISO/IEC TR 29794-5 is useful for:

Biometric system designers and integrators seeking to incorporate automated face quality assessment into pipelines (enrollment, live capture, or video).

Algorithm developers and researchers designing FQAAs and interpreting FQS outputs.

Test labs and evaluators that need a common vocabulary and classification for face image defects and quality attributes.

Government agencies, ID/credential issuers, and vendors implementing face recognition for access control, border control, e-passports or surveillance who require guidance on what image attributes affect recognition performance.

Related standards

ISO/IEC 29794-1 (Framework for biometric sample quality)

ISO/IEC 19794-5 (Face image data - data interchange format) - provides complementary scene and photographic specifications referenced by this report.

Keywords: ISO/IEC TR 29794-5:2010, face image quality, biometric sample quality, face image data, face quality score, FQAA, biometric systems, face recognition, image resolution, illumination, exposure, focus, occlusion.

ISO/IEC TR 29794-5:2010

Abstract

Похожие стандарты

Overview

Key topics

Practical applications and users

Related standards

Технические детали

BS ISO/IEC 29794-1:2024

Information technology. Biometric sample quality. Framework.

ISO/IEC 19794-5:2011

Information technology — Biometric data interchange formats — Part 5: Face image data

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