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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The use of face as a biometric identifier has some drawbacks: From Wikipedia, the free encyclopedia. Quality of the photograph The portrait shall be in sharp focus from nose to ears, of high quality with no creases or ink marks. The applicant shall be looking at the camera with a neutral expression and the month closed.
Nowadays the digital images are replacing the traditional photos on photographic paper in all kind of applications: 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: Colours and lighting The portrait shall be colour neutral showin the applicant with eyes open and clearly visible.
For this reason machine-assisted face recognition from identity documents requires quite restrictive quality standards to be fulfilled. Images have been reduced in size and compressed. The photograph showed below have been published by ICAO. Face is chosen as the primary globally interoperable biometric characteristic for machine assisted identity confirmation in Machine Readable Travel Documents MRTD.
No mandatory scene, photographic and digital requirements are specified for this image type. In some cases a non neutral expression and closed eyes may be acceptable. The ISO standard donesn’t allow digital alteration of the image to correct the dynamic range or the colours. Four face image types are introduced to define categories 19794-55 satisfy the needs of different applications, and the requirements above are specified for each image type:.
A Face Image Type that specifies frontal images with sufficient resolution for human examination as well as reliable computer face recognition. Skip to main content. Sich circumstances may be religious, medical or cultural. The photographs for travel documents usually needs to be recent – not older than 6 months – if submitted as a print, it 17994-5 be on high quality paper with high resolution.
The database contains 5, images, gathered from different sources: Testing Protocol The algorithms for compliance verification are usually characterized by a set of parameters that need to be tuned according to 119794-5 kind of images the algorithm has to process.
Unfortunately, due to the lack of clear specifications and of an appropriate benchmark, comparing the performance of such systems is not easy. Those recommendations are used in several countries also 19794- the issuance 119794-5 driver licenses or residence permits. The frames shall not cover any oso of the eyes.
ido Pose The applicant shall be shown facing square to the camera, not loking over one shoulder portrait style. A precise formalization is here proposed to limit as much as possible the ambiguity. Hair style and expression No hair shall obscure big areas of the face or the eyes.
Views Read Edit View history. The standard is intended to allow computer analysis of face images for automated face identification one-to-many searching and authentication one-to-one matchingas well as human identification of distinctive features such as moles and ido that might be used to verify identity, and human verification of computer identification results.
Biometric System Laboratory
In any case the child shall be alone with no other people, chair backs or toys visible. ICAO completed the ISO standard publishing in Documentpart 1, volume 1, examples of acceptable or not acceptable photographs for travel document based on this standard. If possible, avoid heavy frames. Retrieved from ” https: This image type is suitable for permanent storage of the face information, and it is applicable to ID portraits for passportdriver’s licenseand mug shot images.
All the remaining Face Image Types inherit the properties of this type. If in color, it should show skin tones naturally. The face has to be centered both vertically and horizontally. Lighting of the applicant and background The lighting shall be uniform with no shadows and no reflections on the face, no red eyes and the background shall not present any remarkable shadow.
In order to perform balanced tests, the testing set has been further divided into 24 subsets, each related to a specific characteristic. ISO standards by standard number. Evaluation Due to privacy restrictions the database cannot be downloaded.
The rest of images are used for testing. The present description is a simplified version of the standard and the recommendations and has not the pretension to be exhaustive.
Maio”A multi-classifier approach to face image segmentation for travel documents”Expert Systems With Applicationsvol. The database consists of fully compliant images i. Reflexion on the face. Head coverings Head coverings shall not be accepted except in circumstances which the comptetent State authority specifically approves.
This page was last edited on 18 Februaryat 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: Modern biometric passport photos should comply with this standard.
This type of Face Image Type includes the full head with all hair in most cases, as well as neck and shoulders.
A smile with closed mouth is permitted. 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 iwo and background The subject shall not be to close nor to far from the camera: The dummy value is used for the cases of uncertainty e.
Database An ad hoc database has been created using, where possible, public databases and acquiring additional images to cover the missing defects.