ISO 19794-5 PDF

ISO 19794-5 PDF

addition to the normative requirements presented in ISO/IEC , open issue talking over objective metric for human perceived quality vs. metric for. The Part 5 of the ISO/IEC standard, which is mentioned in the ICAO ( International Civil Aviation Organization) recommendations about the travel. As per ISO/IEC Face Image Data standard, there are mainly two types of face images as follows: Basic face image: It specifies face image record format.

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In order to enable applications that run on a variety of devices, including those with limited resources such as embedded systemsand to improve face recognition accuracy, the specification describes not only the data format, but also additional requirements, namely: Specifications summary Position of the subject and background Pose Quality of the photograph Colors and lighting Hair style and expression Lighting of the applicant and background Eye glasses Head coverings Children Position of the subject and background The subject shall not be to close nor to far from the camera: A smile with closed mouth is permitted.

Reflexion on the face. Position of the subject and background The subject shall not be to close nor to far from the camera: Bibliography Click here if you are interested in any of the publications below.

Skip to main content. Evaluation Due to privacy restrictions the database cannot be downloaded. All the remaining Face Image Types inherit the properties of this type. The photograph showed below have been published by ICAO. The applicant shall be looking at the camera with a neutral expression and the month closed.

The frames shall not cover any part of the eyes. To enable many applications on variety of devices, including devices that have the limited resources required for data storage, and to improve face recognition accuracy, this International Standard specifies not only a data format, but also:.

Images have been reduced in size and compressed. Sich circumstances may be religious, medical or cultural. Pose The applicant shall be shown facing square to the camera, not loking over one shoulder portrait style. A Face Image Type that specifies frontal images with sufficient resolution for human examination as well as reliable computer face recognition. Those recommendations are used in several countries also for the issuance of driver licenses or residence permits.

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The dummy value is used for the cases of uncertainty e. Two variants of the Frontal Face Image Type are defined: The database contains 5, images, gathered from different sources: For teststhe number of images n i included in the subset related to the characteristic i is: Face is chosen as the primary globally interoperable biometric characteristic for machine assisted identity confirmation in Machine Readable Travel Documents MRTD.

Retrieved from ” https: This page was last edited on 18 Februaryat In any case the child shall be alone with no other people, chair backs or toys visible.

Requirements Starting from the indications provided into the ISO standarda set of 30 tests has been defined to evaluate the accuracy of automatic systems for compliance verification: Modern biometric passport photos should comply with this standard. Testing Protocol The algorithms for compliance verification are usually characterized by a set of parameters that need to be tuned according to the kind of images the algorithm has to process.

From Wikipedia, the free encyclopedia. This image type is suitable for permanent storage of the face information, and it is applicable to ID portraits for passportdriver’s license 197945- and mug shot images.

It requires less detail, which makes it suitable for less demanding applications. The geometric requirements are specified as a function of some measures represented in the following figure; Photographic and pose-specific tests: By using this site, you agree to the Terms of Use and Privacy Policy. The ISO standard donesn’t allow digital alteration of the image sio correct the dynamic range or the colours.

The use of face as a biometric identifier has some drawbacks: Colours and lighting The portrait shall be colour neutral showin the applicant with eyes open and clearly visible.

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ISO/IEC 19794-5

No mandatory scene, photographic and digital requirements are specified for this image type. The database consists of fully compliant images i. Four face image types are introduced to define categories that satisfy the needs of different applications, and the requirements above are specified for each image type: The database is supplied with the ground-truth data needed for an objective performance evaluation; in particular the following information is given for each image: Lighting of the applicant and background The lighting shall be uniform with no shadows and no reflections on the face, no red eyes and lso background shall not present any remarkable shadow.

The face has to be centered both vertically and horizontally. A precise formalization is here proposed to limit as much as possible the ambiguity.

ISO/IEC | Correlance

This type of Face Image 1979-45 includes the full head with all hair in most cases, as well as neck and shoulders. For this reason a training kso of images of which 50 are fully compliant has been extracted from the BioLab-ICAO database to be used for parameters setup and training. Eye glasses The portrait shall show the eyes with no light reflection off the glasses and no tinted lenses. Nowadays the digital images are replacing the traditional photos on photographic paper in all kind of applications: Some information about the composition of both training and test set are given in the following table where for each characteristic the number of compliant Cnon-compliant NC and 197994-5 D images are reported.

If possible, avoid heavy frames.

The head should be upright so thaht an imaginary horizotal line drawn between the centres of the eyes is parallel to the top edge of the picture. Maio”A multi-classifier approach to face image segmentation for travel documents”Expert Systems With Applicationsvol.