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Robust Facial Biometric Authentication system Using Pupillary Light Reflex for Liveness Detection of Facial Images

Computer modeling in Engineering & sciences 2024年第4期139卷 725-739页

作者： Puja s.Prasad adepu s.ee laks.m. sandeep Kautish simar Preet singh Rajesh Kumar shrivastava Abdulaziz s.Almazyad Hossam m.Zawbaa Ali Wagdy mohamed CsE Department Geethanjali College of EngineeringHyderabadTelangana501301India Department of Computer science LBEF CampusKathmandu44600Nepal school of Computer science Engineering and Technology(sCsET) Bennett UniversityGreater Noida201310India Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia CeADAR Ireland’s Centre for AI Technological University DublinDublinD07 EWV4Ireland Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied science Research Center Applied Science Private UniversityAmman11937Jordan

Pupil dynamics are the important characteristics of face spoofing *** face recognition system is one of the most used biometrics for authenticating individual *** main threats to the facial recognition system are different types of presentation attacks like print attacks,3D mask attacks,replay attacks,*** proposed model uses pupil characteristics for liveness detection during the authentication *** pupillary light reflex is an involuntary reaction controlling the pupil’s diameter at different light *** proposed framework consists of two-phase *** the first phase,the pupil’s diameter is calculated by applying stimulus(light)in one eye of the subject and calculating the constriction of the pupil size on both eyes in different video *** above measurement is converted into feature space using Kohn and Clynes model-defined *** support Vector machine is used to classify legitimate subjects when the diameter change is normal(or when the eye is alive)or illegitimate subjects when there is no change or abnormal oscillations of pupil behavior due to the presence of printed photograph,video,or 3D mask of the subject in front of the *** the second phase,we perform the facial recognition ***-invariant feature transform(sIFT)is used to find the features from the facial images,with each feature having a size of a 128-dimensional *** features are scale,rotation,and orientation invariant and are used for recognizing facial *** brute force matching algorithm is used for matching features of two different *** threshold value we considered is 0.08 for good *** analyze the performance of the framework,we tested our model in two Face antispoofing datasets named Replay attack datasets and CAsIA-sURF datasets,which were used because they contain the videos of the subjects in each sample having three modalities(RGB,IR,Depth).The CAsIA-sURF datasets showed an 89.9%Equal Err

关键词： sIFT pupil CAsIA-sURF pupillary light reflex replay attack dataset brute force

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Aristotle＇s Immovable movers： A sketch

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Frontiers of Philosophy in China 2015年第2期10卷 273-286页

作者： André laks Department of Philosophy Panamerican University Col. Insurgentes Mixcoac CP03920 México D.F.

In keeping with a view that is explicitly formulated by Aristotle in his motion of Animals, general kinetic principles must be specified according to the different types of movable entities existing in the universe. At issue, essentially, are the motions of the stars and the motions of animals. Whereas the cosmological immovable mover is the object of two complementary analyses （in Bk. Ⅷ of Physics and in Chs. 6 and 7 of Bk. Ⅻ of metaphysics）, information on the immovability of the first mover responsible for animal motion is to be found in the psychological and psycho-physiological treatises （On the soul, in Bk. Ⅰ, Chs. 3 and 4, and in Bk. Ⅲ, Ch. 10 and in Ch. 6 of the motion of Animals）. But it is also found in Ch. 7, Bk. Ⅻ of the metaphysics, in the very context of the argument concerning the absolutely first immovable mover of the world. This suggests that the two types of motion, that of the stars and that of animals, however distinct the arguments about them are, rest on a single scheme, and maybe even on a common principle. This is liable to surprise us, as much as stars and animals appear to us to belong to heterogeneous orders of reality. But the situation is different for Aristotle, who, as attentive as he is to differences, tends nonetheless to conceive the stars as living things of a particular kind. This fact is the source of a series of difficulties that Aristotle generously left for his many commentators to solve. Aim of this text, which was initially directed to a larger audience, is to set some of these complex issues in both simple and up to date terms.

关键词： Aristotle immovable movers final cause efficient cause soul animal motion

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半导体用聚酰亚胺薄膜的表征

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电子元件与材料 1986年第6期 40-43+30页

作者： A.m.Wilson D.laks s.m.Davis 蒋启泰

聚酰亚胺树脂作为一类化学品早在1926年就已制得。它们作为一种在250℃以上仍保持其电气和机械特性的塑料绝缘体而应用于电子工业也是早已得到公认。Harada及其在日立(Hitachi)中央研究实验室的同事曾就聚酰亚胺异吲哚喹唑啉二酮(简称P... 详细信息

聚酰亚胺树脂作为一类化学品早在1926年就已制得。它们作为一种在250℃以上仍保持其电气和机械特性的塑料绝缘体而应用于电子工业也是早已得到公认。Harada及其在日立(Hitachi)中央研究实验室的同事曾就聚酰亚胺异吲哚喹唑啉二酮(简称PIQ)提出了报告。PIQ可用作大规模集成电路(LsI)多层布线的绝缘层及最后的钝化涂层。***和同事又报导了一种可以简化半导体工艺步骤的光敏聚

关键词：聚酞亚胺薄膜厚度表征热处理时间树脂杜邦

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79&PARK住宅区

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城市环境设计 2019年第2期118卷 198-209页

作者： H?gni laksáfoss Agata Wozniczka Agne Tamasauskaite Alberto Herzog Borko Nikolic Christin svensson Claudio moretti Dominic Black Eva seo-Andersen Frederik Wegener Gabrielle Nadeau Jacob Lykkefold Aaen Jaime Peiro suso Jan magasanik Jesper Boye Andersen Jonas Aars? Larsen Julian Andres Ocampo salazar Karl Johan Nyqvist Karol Bogdan Borkowski Katarina mácková Katrine Juul Kristoffer Negendahl Lucian Racovitan maria Teresa Fernandez Rojo max Gabriel Pinto min Ter Lim Narisara Ladawal schr?der Romea muryn Ryohei Koike sergiu Calacean song He Taylor mcNally-Anderson Terrence Chew Thomas sebastian Krall Tiago sá Tobias Vall? s?rensen Tore Banke Laurian Ghinitoiu 朱翰林

位于G?rdet国家公园边缘,Kullen有意识地塑造了一个尊重且适应环境的形式,并展现出与众不同的社区和壮丽的景色。为直接回应周围环境,建筑的西北和东南角高起至临近周边的高度;而距离公园最远、且本是视野最不好的东北角被拉高以使其拥... 详细信息

位于G?rdet国家公园边缘,Kullen有意识地塑造了一个尊重且适应环境的形式,并展现出与众不同的社区和壮丽的景色。为直接回应周围环境,建筑的西北和东南角高起至临近周边的高度;而距离公园最远、且本是视野最不好的东北角被拉高以使其拥有公园和港口最壮阔的景色。建筑西南角延伸至最远处的G?rdet国家公园;为了在建筑和自然之间创造一个人性化的柔和边缘,西南角被尽可能地压低,变成

关键词：住宅区

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老海勒鲁普高中体育馆

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城市环境设计 2019年第2期118卷 114-127页

作者： Ana merino Anders Hjortn?s Christian Alvarez Dennis Rasmussen Gül Ertekin Henrick Poulsen Hjalti Gestsson Jan magasanik Jakob Lange Jacob Thomsen Jeppe Ecklon Ji-young Yoon michael sch?nemann Narisara schr?der Riccardo mariano Rune Hansen snorre Nash Thomas Juul-Jensen Vincent He Xu Li Agnete Jukneviciute Ambra Chiesa Brigitta Gulyás Dennis Rasmussen Enea michelesio Greta Krenciute H?gni laksáfoss Isabella Eriksson Jan magasanik mikkel marcker stubgaard Jeppe Ecklon Kamilla Heskje michael sch?nemann Narisara schr?der Thomas Juul-Jensen Brigitta Gulyás Enea michelesio Jakob Lange mikkel marcker stubgaard Narisara schr?der Tobias Hjortdal Iwan Baan Peter moldow Rasmus Hjortshoj Jens Lindhe 朱翰林

位于哥本哈根北部的老海勒鲁普高中,内部拥有1100m2的多功能大厅和最新的两层建筑,为现有学生提供了广阔的社交和创意展示空间,同时提升学校的容量,以应对持续增长的人口需求。原本校园旁边的一栋建筑里,体育设施匮乏而无法满足需求;老... 详细信息

位于哥本哈根北部的老海勒鲁普高中,内部拥有1100m2的多功能大厅和最新的两层建筑,为现有学生提供了广阔的社交和创意展示空间,同时提升学校的容量,以应对持续增长的人口需求。原本校园旁边的一栋建筑里,体育设施匮乏而无法满足需求;老海勒鲁普高中也缺少大型多功能空间,用以举办体育活动、毕业典礼和社交聚会。为此,BIG为学生

关键词：体育馆

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