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    • 6. 发明授权
    • Robust biometric feature extraction with and without reference point
    • 具有和不具有参考点的鲁棒生物特征提取
    • US08655026B2
    • 2014-02-18
    • US13378208
    • 2010-06-17
    • Antonius Hermanus Maria AkkermansSabri BoughorbelDirk Jeroen BreebaartAlphons Antonius Maria Lambertus BruekersBerk GokberkKoen Theo Johan De GrootEmile Josephus Carlos KelkboomThomas Andreas Maria KevenaarAweke Negash Lemma
    • Antonius Hermanus Maria AkkermansSabri BoughorbelDirk Jeroen BreebaartAlphons Antonius Maria Lambertus BruekersBerk GokberkKoen Theo Johan De GrootEmile Josephus Carlos KelkboomThomas Andreas Maria KevenaarAweke Negash Lemma
    • G06K9/00
    • G06K9/0008G06K9/00067G06K9/036G06K9/629G06K9/6292
    • A basic idea of the present invention is to selectively employ one of at least two different feature extraction processes when generating a biometric template of an individual. An individual offers a physiological property, such as a fingerprint, an iris, an ear, a face, etc., from which biometric data can be derived, to a sensor of an enrollment authority. In the following, the property to be discussed will be fingerprints, even though any suitable biometric property may be used. From the fingerprint, a positional reference point of the biometric data is derived. The derivation of the positional reference point may be accomplished using any appropriate method out of a number of known methods. Such a reference point could be the location of a core, a delta, a weighted average of minutiae coordinates, or alike. Typically, the reference point includes a core of a fingerprint expressed as a three-dimensional coordinate denoted by means of xr, yr, and angle αr. A contribution indicator is calculated for the derived positional reference point, and it is determined whether the derived positional reference point can be considered reliable. Depending on the reliability of the derived reference point, one of the two different feature extraction processes is selected; either the first feature set is extracted using a method which is invariant of the derived reference point, or a method is used taking into account the derived reference point. The better the estimation of the reference point is, the more reliable the reference point-dependent extraction method is. Finally, the biometric template is generated using the extracted first feature set.
    • 本发明的基本思想是当生成个体的生物特征模板时,选择性地采用至少两种不同的特征提取过程中的一种。 个体向生物特征提供生物特征,例如指纹,虹膜,耳朵,面部等,从中可以将生物特征数据导出到注册机构的传感器。 在下文中,要讨论的属性将是指纹,即使可以使用任何合适的生物特征属性。 从指纹,导出生物特征数据的位置参考点。 可以使用多种已知方法中的任何适当的方法来实现位置参考点的推导。 这样的参考点可以是核心的位置,三角形,细节坐标的加权平均值,或类似的。 通常,参考点包括表示为由xr,yr和角度α表示的三维坐标的指纹核心。 针对导出的位置参考点计算贡献指标,并且确定导出的位置参考点是否可以被认为是可靠的。 根据导出的参考点的可靠性,选择两个不同特征提取过程之一; 使用导出的参考点不变的方法来提取第一特征集,或者使用考虑到导出的参考点的方法。 参考点的估计越好,参考点依赖性提取方法越可靠。 最后,使用提取的第一特征集生成生物特征模板。
    • 8. 发明申请
    • ROBUST BIOMETRIC FEATURE EXTRACTION WITH AND WITHOUT REFERENCE POINT
    • 具有和没有参考点的稳定的生物特征提取
    • US20120087550A1
    • 2012-04-12
    • US13378208
    • 2010-06-17
    • Antonius Hermanus Maria AkkermansSabri BoughorbelDirk Jeroen Breebaart BreebaartAlphons Antonius Maria Lambertus BruekersBerk GokberkKoen Theo Johan De GrootEmile Josephus Carlos KelkboomThomas Andreas Maria KevenaarAweke Negash Lemma
    • Antonius Hermanus Maria AkkermansSabri BoughorbelDirk Jeroen Breebaart BreebaartAlphons Antonius Maria Lambertus BruekersBerk GokberkKoen Theo Johan De GrootEmile Josephus Carlos KelkboomThomas Andreas Maria KevenaarAweke Negash Lemma
    • G06K9/00
    • G06K9/0008G06K9/00067G06K9/036G06K9/629G06K9/6292
    • A basic idea of the present invention is to selectively employ one of at least two different feature extraction processes when generating a biometric template of an individual. An individual offers a physiological property, such as a fingerprint, an iris, an ear, a face, etc., from which biometric data can be derived, to a sensor of an enrolment authority. In the following, the property to be discussed will be fingerprints, even though any suitable biometric property may be used. From the fingerprint, a positional reference point of the biometric data is derived. The derivation of the positional reference point may be accomplished using any appropriate method out of a number of known methods. Such a reference point could be the location of a core, a delta, a weighted average of minutiae coordinates, or alike. Typically, the reference point includes a core of a fingerprint expressed as a three-dimensional coordinate denoted by means of xr, yr, and angle αr. A contribution indicator is calculated for the derived positional reference point, and it is determined whether the derived positional reference point can be considered reliable. Depending on the reliability of the derived reference point, one of the two different feature extraction processes is selected; either the first feature set is extracted using a method which is invariant of the derived reference point, or a method is used taking into account the derived reference point. The better the estimation of the reference point is, the more reliable the reference point-dependent extraction method is. Finally, the biometric template is generated using the extracted first feature set.
    • 本发明的基本思想是当生成个体的生物特征模板时,选择性地采用至少两种不同的特征提取过程中的一种。 个体向生物特征提供生物特征,例如指纹,虹膜,耳朵,面部等,从中可以将生物特征数据导出到注册机构的传感器。 在下文中,要讨论的属性将是指纹,即使可以使用任何合适的生物特征属性。 从指纹,导出生物特征数据的位置参考点。 可以使用多种已知方法中的任何适当的方法来实现位置参考点的推导。 这样的参考点可以是核心的位置,三角形,细节坐标的加权平均值,或类似的。 通常,参考点包括表示为由xr,yr和角度αr表示的三维坐标的指纹的核心。 针对导出的位置参考点计算贡献指标,并且确定导出的位置参考点是否可以被认为是可靠的。 根据导出的参考点的可靠性,选择两个不同特征提取过程之一; 使用导出的参考点不变的方法来提取第一特征集,或者使用考虑到导出的参考点的方法。 参考点的估计越好,参考点依赖性提取方法越可靠。 最后,使用提取的第一特征集生成生物特征模板。
    • 10. 发明申请
    • METHOD FOR MODIFYING A REPRESENTATION BASED UPON A USER INSTRUCTION
    • 基于用户指令修改代表的方法
    • US20110022992A1
    • 2011-01-27
    • US12933920
    • 2009-03-24
    • Xiaoming ZhouPaul Marcel Carl LemmensAlphons Antonius Maria Lambertus BruekersAndrew Alexander TokmakoffEvelijne Machteld Hart De Ruijter-BekkerServerius Petrus Paulus Pronk
    • Xiaoming ZhouPaul Marcel Carl LemmensAlphons Antonius Maria Lambertus BruekersAndrew Alexander TokmakoffEvelijne Machteld Hart De Ruijter-BekkerServerius Petrus Paulus Pronk
    • G06T13/00G06F3/033
    • G09B11/00G06T13/205G06T13/40
    • The invention relates to a method for modifying a representation based upon a user instruction and a system for producing a modified representation by said method. Conventional drawing systems, such as pen and paper and writing tablets, require a reasonable degree of drawing skill which not all users possess. Additionally, these conventional systems produce static drawings. The method of the invention comprises receiving a representation from a first user, associating the representation with an input object classification, receiving an instruction from a second user, associating the instruction with an animation classification, determining a modification of the representation using the input object classification and the animation classification, and modifying the representation using the modification. When the first user provides a representation of something, for example a character in a story, it is identified to a certain degree by associating it with an object classification. In other words, the best possible match is determined. As the second user imagines a story involving the representation, dynamic elements of the story are exhibited in one or more communication forms such as writing, speech, gestures, facial expressions. By deriving an instruction from these signals, the representation may be modified, or animated, to illustrate the dynamic element in the story. This improves the feedback to the users, and increases the enjoyment of the users.
    • 本发明涉及一种用于基于用户指令修改表示的方法和用于通过所述方法产生修改表示的系统。 传统的绘图系统,如笔和纸和书写片,需要合理的绘图技能,而不是所有用户都拥有。 另外,这些常规系统产生静态图。 本发明的方法包括从第一用户接收表示,将表示与输入对象分类相关联,从第二用户接收指令,将指令与动画分类相关联,使用输入对象分类来确定表示的修改 和动画分类,并使用修改修改表示。 当第一个用户提供某种东西的表示时,例如故事中的角色,通过将其与对象分类相关联来确定它在一定程度上。 换句话说,确定最佳匹配。 作为第二个用户想象一个涉及表示的故事,故事的动态元素以一种或多种通信形式展现,如写作,言语,手势,面部表情。 通过从这些信号导出指令,可以修改或动画表示以说明故事中的动态元素。 这提高了对用户的反馈,并增加了用户的享受。