{"id":372077,"date":"2024-10-20T02:27:38","date_gmt":"2024-10-20T02:27:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-iec-39794-62021\/"},"modified":"2024-10-26T04:17:06","modified_gmt":"2024-10-26T04:17:06","slug":"bs-iso-iec-39794-62021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-iec-39794-62021\/","title":{"rendered":"BS ISO\/IEC 39794-6:2021"},"content":{"rendered":"
This document specifies:<\/p>\n
generic extensible data interchange formats for the representation of iris image data: a tagged binary data format based on an extensible specification in ASN.1 and a textual data format based on an XML schema definition that are both capable of holding the same information,<\/p>\n<\/li>\n
examples of data record contents,<\/p>\n<\/li>\n
application specific requirements, recommendations, and best practices in data acquisition, and<\/p>\n<\/li>\n
conformance test assertions and conformance test procedures applicable to this document.<\/p>\n<\/li>\n<\/ul>\n
The iris image information is stored as:<\/p>\n
an array of intensity values optionally compressed with ISO\/IEC 15948<\/span><\/span> or ISO\/IEC 15444-1<\/span><\/span> , or<\/p>\n<\/li>\n an array of intensity values optionally compressed with ISO\/IEC 15948<\/span><\/span> or ISO\/IEC 15444-1<\/span><\/span> that can be cropped around the iris, with the iris at the centre, and which can incorporate region-of-interest masking of non-iris regions.<\/p>\n<\/li>\n<\/ul>\n This document also specifies elements of conformance testing methodology, test assertions, and test procedures, as applicable to this document.<\/p>\n It establishes:<\/p>\n test assertions pertaining to the structure of the iris image data format, as specified in Clauses 6<\/span>, 7<\/span>, 8<\/span> and 9<\/span> of this document,<\/p>\n<\/li>\n test assertions pertaining to internal consistency by checking the types of values that may be contained within each field, and<\/p>\n<\/li>\n semantic test assertions.<\/p>\n<\/li>\n<\/ul>\n The conformance testing methodology specified in this document does not establish:<\/p>\n tests of other characteristics of biometric products or other types of testing of biometric products (e.g. acceptance, performance, robustness, security), or<\/p>\n<\/li>\n tests of conformance of systems that do not produce data records conforming to the requirements of this document.<\/p>\n<\/li>\n<\/ul>\n This document does not establish:<\/p>\n requirements on the optical specifications of cameras, or<\/p>\n<\/li>\n requirements on photometric properties of iris images, or<\/p>\n<\/li>\n requirements on enrolment processes, workflow and use of iris equipment.<\/p>\n<\/li>\n<\/ul>\n Information technology. Extensible biometric data interchange formats – Iris image data<\/b><\/p>\n\n
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PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n undefined <\/td>\n<\/tr>\n \n 6<\/td>\n Foreword <\/td>\n<\/tr>\n \n 7<\/td>\n Introduction <\/td>\n<\/tr>\n \n 8<\/td>\n 1 Scope <\/td>\n<\/tr>\n \n 9<\/td>\n 2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n\n 10<\/td>\n 4 Symbols and abbreviated terms <\/td>\n<\/tr>\n \n 11<\/td>\n 5 Conformance
6 Iris image content specification
6.1 General <\/td>\n<\/tr>\n\n 12<\/td>\n 6.2 Uncropped iris image <\/td>\n<\/tr>\n \n 13<\/td>\n 6.3 VGA iris image
6.4 Cropped iris image <\/td>\n<\/tr>\n\n 14<\/td>\n 6.5 Cropped and masked iris image
6.5.1 General
6.5.2 Masking of the sclera
6.5.3 Masking of the eyelids <\/td>\n<\/tr>\n\n 15<\/td>\n 6.5.4 Mask transition blurring <\/td>\n<\/tr>\n \n 16<\/td>\n 7 Abstract data elements
7.1 Purpose and overall structure <\/td>\n<\/tr>\n\n 18<\/td>\n 7.2 Version block
7.3 Representation block
7.3.1 General
7.3.2 Eye label
7.3.3 Iris image kind
7.3.4 Bit depth <\/td>\n<\/tr>\n\n 19<\/td>\n 7.3.5 Image data format <\/td>\n<\/tr>\n \n 20<\/td>\n 7.3.6 Horizontal orientation
7.3.7 Vertical orientation
7.3.8 Compression history <\/td>\n<\/tr>\n\n 21<\/td>\n 7.3.9 Capture date\/time block
7.3.10 Iris image data
7.3.11 Range
7.3.12 Capture device block <\/td>\n<\/tr>\n\n 22<\/td>\n 7.3.13 Quality blocks
7.3.14 Roll angle block <\/td>\n<\/tr>\n\n 23<\/td>\n 7.3.15 Localization block <\/td>\n<\/tr>\n \n 24<\/td>\n 7.3.16 PAD data block
8 Encoding
8.1 Tagged binary encoding
8.2 XML encoding
9 Registered BDB format identifiers <\/td>\n<\/tr>\n\n 26<\/td>\n Annex A (normative) Formal specifications <\/td>\n<\/tr>\n \n 33<\/td>\n Annex B (informative) Encoding examples <\/td>\n<\/tr>\n \n 34<\/td>\n Annex C (normative) Conformance testing methodology <\/td>\n<\/tr>\n \n 40<\/td>\n Annex D (informative) Iris image capture <\/td>\n<\/tr>\n \n 44<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2021<\/td>\n 46<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":372085,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[693,2641],"product_tag":[],"class_list":{"0":"post-372077","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-35-240-15","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/372077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/372085"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=372077"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=372077"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=372077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}