公开(公告)号：US4763045A

公开(公告)日：1988-08-09

申请号：US045284

申请日：1987-05-04

申请人： Hyeong In Choi ,  Keh-Kun Choi

发明人： Hyeong In Choi ,  Keh-Kun Choi

IPC分类号： F02P3/08 ,  F02P3/06

CPC分类号： F02P3/0838

摘要： An apparatus for the generation of ignition power and its circuits is composed of two transformers and one discharging capacitor. The triggering signal is taken from the alternating current supply voltage. The stored charge is discharged through a primary winding of a step-up transformer. The secondary voltage is stepped up to several ten thousand peak volts which is enough to make an ignition spark through a large air gap. The first half wave of alternating current power charges the capacitor and the second half wave triggers an SCR to discharge the capacitor. The charging and discharging are completed during a single period of a line power wave.

摘要翻译： 用于产生点火功率的装置及其电路由两个变压器和一个放电电容器组成。 触发信号取自交流电源电压。 存储的电荷通过升压变压器的初级绕组放电。 次级电压升高到几万峰值电压，足以使大气隙产生点火火花。 交流电源的第一半波对电容器充电，而第二半波触发SCR以对电容器放电。 充电和放电在线路功率波的单个周期内完成。

公开(公告)号：US20100182456A1

公开(公告)日：2010-07-22

申请号：US12676355

申请日：2008-09-05

申请人： Dae Hoon Kim ,  Hyeong In Choi ,  Seung Min Paik ,  Jung Kyo Sohn ,  Yang Hyeong Park

发明人： Dae Hoon Kim ,  Hyeong In Choi ,  Seung Min Paik ,  Jung Kyo Sohn ,  Yang Hyeong Park

IPC分类号： H04N5/76 ,  G06K9/54 ,  G06K9/36

CPC分类号： G06T9/00 ,  G06K9/00597 ,  H04N19/115 ,  H04N19/154 ,  H04N19/46

摘要： The present invention relates to a method of storing and restoring an iris image, the method comprising the steps of: acquiring an original image Iori including an iris portion from a camera; acquiring a first image Iextract1 configured with an area removed of portions outside of an outer circle and images included within an inner circle (hereinafter, referred to as an ‘iris enveloping annulus’) in order to extract an iris image to be stored from the original image; acquiring a second image Iextract2 removed of an occlusion portion of the iris, such as a pupil, a white of an eye, an eyelash, an eyelid, hairs, and the like, from the first image; converting the second image Iextract2 removed of the occlusion portion into a polar image Ipolar of a polar coordinate system, or acquiring a compressed image Icomp compressing the converted polar image; storing the compressed image Icomp in memory, together with restoration information H, as storage image data Istore; and acquiring a restored image Irestored using a restoration algorithm from the storage data when recognizing the iris, thereby reducing memory capacity for storing the image, and improving processing speed when recognizing an iris.

摘要翻译： 本发明涉及一种存储和恢复虹膜图像的方法，所述方法包括以下步骤：从相机获取包括虹膜部分的原始图像Iori; 获取配置有从外圆外部移除的区域的第一图像Iextract1和包含在内圆内的图像（以下称为“虹膜包围环”），以从原件中提取要存储的虹膜图像 图片; 从所述第一图像获取从所述虹膜的遮挡部分（例如瞳孔，白眼，睫毛，眼睑，毛发等）移除的第二图像Iextract2; 将除去部分的第二图像Iextract2转换为极坐标系的极坐标图像极性，或获取压缩转换的极坐标图像的压缩图像Icomp; 将压缩图像Icomp与恢复信息H一起存储在存储器中作为存储图像数据Istore; 以及当识别虹膜时从存储数据获取使用恢复算法来恢复的恢复图像，从而减少用于存储图像的存储器容量，并且在识别虹膜时提高处理速度。

公开(公告)号：US20130063582A1

公开(公告)日：2013-03-14

申请号：US13522948

申请日：2010-01-22

申请人： Hyeong In Choi ,  Dae Hoon Kim ,  Jung Kyo Sohn ,  Song Hwa Kwon ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik

发明人： Hyeong In Choi ,  Dae Hoon Kim ,  Jung Kyo Sohn ,  Song Hwa Kwon ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik

IPC分类号： H04N7/18

CPC分类号： G06K9/00617 ,  G06K9/00604

摘要： The present invention relates to an iris recognition device and method capable of improving iris recognition accuracy. To enhance iris recognition accuracy in consideration of variation in pupil size and iris region due to changes in intensity of lighting, the iris recognition device and method are configured to obtain multiple iris images having different iris sizes by capturing iris images of a person to be enrolled with a camera while adjusting brightness of lighting so that the iris size of the person to be enrolled varies from a maximum size to a minimum size, store the obtained iris images and associated iris size information for enrollment in a database interworking with the iris recognition device, and select enrolled iris images having an iris size most similar to that of an iris image captured by the camera for identification among many enrolled iris images for similarity measurement.

摘要翻译： 本发明涉及一种能够改善虹膜识别精度的虹膜识别装置和方法。 考虑到由于照明强度的变化引起的瞳孔尺寸和虹膜区域的变化来增强虹膜识别精度，虹膜识别装置和方法被配置为通过捕获要登记的人的虹膜图像来获得具有不同虹膜尺寸的多个虹膜图像 在调整照明亮度的同时照相机，使得要注册的人的虹膜尺寸从最大尺寸变化到最小尺寸，将获得的虹膜图像和相关联的虹膜尺寸信息存储在与虹膜识别装置相互配合的数据库中 并且选择具有与由相机拍摄的虹膜图像的虹膜尺寸最相似的虹膜尺寸的已注册的虹膜图像，用于在许多注册的虹膜图像之间用于相似性测量。

公开(公告)号：US6157750A

公开(公告)日：2000-12-05

申请号：US829387

申请日：1997-03-31

申请人： Hyeong In Choi ,  Nam Sook Wee ,  Kyung Hwan Park ,  Sung Jin Lee ,  Sung Woo Choi ,  Hwan Pyo Moon ,  Seung Won Song ,  Myung Joo Baek ,  Jin Young Kim ,  Shin Hae Tahk ,  Hyun Joo Choi ,  Hal Lan Yang ,  Jeong Han Kim

发明人： Hyeong In Choi ,  Nam Sook Wee ,  Kyung Hwan Park ,  Sung Jin Lee ,  Sung Woo Choi ,  Hwan Pyo Moon ,  Seung Won Song ,  Myung Joo Baek ,  Jin Young Kim ,  Shin Hae Tahk ,  Hyun Joo Choi ,  Hal Lan Yang ,  Jeong Han Kim

IPC分类号： G06F3/12 ,  G06F3/14 ,  G06T3/40 ,  G09G5/24 ,  G06K9/32

CPC分类号： G06T3/0093

摘要： The present invention relates to an outline font. The purpose lies in supplying a transforming and rendering method in the shape where the important form of the shape, such as the thickness of the stroke, will be maintained from the basic shape, and at the same time the whole size of the shape can be fitted into a given bounding box. The present invention supplies the transformation method of a handwriting font including searching for the medial axis of a given element, obtaining contact points by using maximal inscribed circles with the medial axis and points of the medial axis as a center, and applying the information about the medial axis points and the contact points in case of a transformation of the element in the transformation method of handwriting where a given element can be optionally transformed in sizes in order to achieve the purpose. The present invention enables the transformation of the shape. In resizing the given element from the box surrounding element to the box where the new element is placed, the important form of the shape, such as the thickness of the stroke, is maintained, and at the same time the size of the whole is transformed in accordance with the optionally given box.

摘要翻译： 本发明涉及一种轮廓字体。 目的在于提供一种形状的变形和渲染方法，其中形状的重要形状（例如笔划的厚度）将从基本形状保持，并且同时形状的整体尺寸可以是 装入给定的边界框。 本发明提供了一种手写字体的变换方法，包括搜索给定元素的中轴，通过使用具有中间轴的最大内切圆和中间轴的点作为中心来获得接触点，并且应用关于 在笔迹的变换方法中的元素的变换的情况下的中间轴点和接触点，其中给定元素可以可选地在尺寸上变换以实现目的。 本发明能够实现形状的变换。 在将给定元素从包围元素的大小调整到放置新元素的框中时，保持形状的重要形式（例如笔画的厚度），同时整体的大小被变换 按照任意给定的方框。

公开(公告)号：US09087238B2

公开(公告)日：2015-07-21

申请号：US13522948

申请日：2010-01-22

申请人： Hyeong In Choi ,  Dae Hoon Kim ,  Jung Kyo Sohn ,  Song Hwa Kwon ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik

发明人： Hyeong In Choi ,  Dae Hoon Kim ,  Jung Kyo Sohn ,  Song Hwa Kwon ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik

IPC分类号： H04N7/18 ,  G06K9/00

CPC分类号： G06K9/00617 ,  G06K9/00604

摘要： The present invention relates to an iris recognition device and method capable of improving iris recognition accuracy. To enhance iris recognition accuracy in consideration of variation in pupil size and iris region due to changes in intensity of lighting, the iris recognition device and method are configured to obtain multiple iris images having different iris sizes by capturing iris images of a person to be enrolled with a camera while adjusting brightness of lighting so that the iris size of the person to be enrolled varies from a maximum size to a minimum size, store the obtained iris images and associated iris size information for enrollment in a database interworking with the iris recognition device, and select enrolled iris images having an iris size most similar to that of an iris image captured by the camera for identification among many enrolled iris images for similarity measurement.

摘要翻译： 本发明涉及一种能够改善虹膜识别精度的虹膜识别装置和方法。 考虑到由于照明强度的变化引起的瞳孔尺寸和虹膜区域的变化来增强虹膜识别精度，虹膜识别装置和方法被配置为通过捕获要登记的人的虹膜图像来获得具有不同虹膜尺寸的多个虹膜图像 在调整照明亮度的同时照相机，使得要注册的人的虹膜尺寸从最大尺寸变化到最小尺寸，将获得的虹膜图像和相关联的虹膜尺寸信息存储在与虹膜识别装置相互配合的数据库中 并且选择具有与由相机拍摄的虹膜图像的虹膜尺寸最相似的虹膜尺寸的已注册的虹膜图像，用于在许多注册的虹膜图像之间用于相似性测量。

公开(公告)号：US08433105B2

公开(公告)日：2013-04-30

申请号：US13123230

申请日：2009-10-06

申请人： Hyeong In Choi ,  Dae Hoon Kim ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik ,  Song Hwa Kwon ,  Jung Kyo Sohn

发明人： Hyeong In Choi ,  Dae Hoon Kim ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik ,  Song Hwa Kwon ,  Jung Kyo Sohn

IPC分类号： G06K9/00

CPC分类号： G06K9/00617 ,  G06K9/0061 ,  G06K9/6255

摘要： The present invention provides a method for acquiring region-of-interest and/or cognitive information from an eye image, comprising the steps of: preprocessing, standardizing, and coding the group of eye images for region-of-interest information or cognitive information to create eye image codes and to build a characteristic eye library in a memory in order to improve an iris recognition rate; grouping and partitioning or covering eye codes for eye images stored in the characteristic eye library into a plurality of groups, and obtaining a representative eye code of each of the eye code groups, preprocessing, standardizing, and coding a new eye image not assigned region-of-interest information or cognitive information in the same way as the above-described step to create a test eye code, matching the test eye image to the most similar eye image in the characteristic eye library, and transferring the region-of-interest information or cognitive information assigned to the matched eye image to the test eye image. The transferred information is utilized in the preprocessing of the eye image.

摘要翻译： 本发明提供一种从眼图获取感兴趣区域和/或认知信息的方法，包括以下步骤：对感兴趣区域信息或认知信息对眼图像组进行预处理，标准化和编码， 创建眼睛图像代码并在记忆体中建立一个特征性眼库，以提高虹膜识别率; 将存储在特征眼库中的眼图的眼码分组和分割成多个组，并且获得每个眼码组的代表性眼码，对未分配区域的新眼图进行预处理，标准化和编码， 以与上述步骤相同的方式创建兴趣信息或认知信息，以创建测试眼码，将测试眼睛图像与特征眼图库中最相似的眼睛图像相匹配，并将感兴趣区域信息 或分配给匹配的眼睛图像的认知信息到测试眼睛图像。 所传送的信息用于眼图像的预处理。

公开(公告)号：US20120062720A1

公开(公告)日：2012-03-15

申请号：US13140396

申请日：2009-12-11

申请人： Hyeong In Choi ,  Dae Hoo Kim ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Song Hwa Kwon ,  Seung Min Paik ,  Jung Kyo Sohn

发明人： Hyeong In Choi ,  Dae Hoo Kim ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Song Hwa Kwon ,  Seung Min Paik ,  Jung Kyo Sohn

IPC分类号： H04N7/18

CPC分类号： H04N5/232 ,  G06K9/00604 ,  G06K9/036 ,  H04N5/23222 ,  H04N5/23245

摘要： The present invention provides a method for acquiring high quality eye images, comprising the steps of: dividing a camera mode for eye image acquisition into a pre-photographing mode and a main photographing mode, comparing the degree of eye capture, actual eye, resolution, contrast ratio, noise level, angle of the face when an object to be photographed stares at a lens, location of the pupil in the eye, and the degree of exposure of the iris in the eye, etc., with a preset reference quality condition to evaluate the quality of eye images acquired in the pre-photographing mode, and switching from the pre-photographing mode to the main photographing mode if the preset reference quality condition is satisfied; capturing a plurality of eye images in the main photographing mode, finishing the main photographing mode if the preset condition for finishing the main photographing mode is satisfied, and setting a candidate group from the stored plurality of images; comparing the images with the preset reference quality condition if no candidate group is set, and returning to the main photographing mode or pre-photographing mode in accordance with the result of the comparison; and selecting final images from the candidate group if the candidate group is set.

摘要翻译： 本发明提供了一种用于获取高质量眼睛图像的方法，包括以下步骤：将用于眼睛图像获取的相机模式划分为预拍摄模式和主拍摄模式，将眼睛捕获的程度，实际眼睛，分辨率， 对比度，噪声水平，当被拍摄物体的眼睛的瞳孔位置，眼睛中的瞳孔的位置以及虹膜在眼睛中的曝光程度等等时，脸部的角度具有预设的参考质量条件 评估在预拍摄模式下获取的眼睛图像的质量，并且如果满足预设参考质量条件，则从预拍摄模式切换到主拍摄模式; 在主拍摄模式下拍摄多个眼睛图像，如果满足用于完成主拍摄模式的预设条件，则完成主拍摄模式，并且从存储的多个图像中设置候选组; 如果没有设置候选组，则将图像与预设参考质量条件进行比较，并且根据比较结果返回到主要拍摄模式或预拍摄模式; 如果候选组被设置，则从候选组中选择最终图像。

公开(公告)号：US08009876B2

公开(公告)日：2011-08-30

申请号：US11719947

申请日：2005-09-13

申请人： Daehoon Kim ,  Nam-Sook Wee ,  Song-Hwa Kwon ,  Sung Jin Lee ,  Hyeong In Choi

发明人： Daehoon Kim ,  Nam-Sook Wee ,  Song-Hwa Kwon ,  Sung Jin Lee ,  Hyeong In Choi

IPC分类号： G06K9/00

CPC分类号： G06K9/0061

摘要： An iris identification method and system, which divide an iris image, which is acquired for personal identification, into a plurality of equal/unequal and multiscale regions, generate a corresponding code corresponding to the respective regions, organizing codes into a database, generate a code at the time of authentication in the same manner, and identify a person by comparing this code with the codes stored in the database, thus improving identification speed and rate.

摘要翻译： 一种虹膜识别方法和系统，其将为了个人识别获取的虹膜图像划分成多个相等/不等于多尺度区域，生成对应于各个区域的对应代码，将代码组织到数据库中，生成代码 在认证时以相同的方式，通过将该代码与存储在数据库中的代码进行比较来识别人，从而提高识别速度和速率。

公开(公告)号：US20110194738A1

公开(公告)日：2011-08-11

申请号：US13123230

申请日：2009-10-06

申请人： Hyeong In Choi ,  Dae Hoon Kim ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik ,  Song Hwa Kwon ,  Jung Kyo Sohn

发明人： Hyeong In Choi ,  Dae Hoon Kim ,  Sung Jin Lee ,  Hwan Pyo Moon ,  Seung Min Paik ,  Song Hwa Kwon ,  Jung Kyo Sohn

IPC分类号： G06K9/00

CPC分类号： G06K9/00617 ,  G06K9/0061 ,  G06K9/6255

摘要： The present invention provides a method for acquiring region-of-interest and/or cognitive information from an eye image, comprising the steps of: preprocessing, standardizing, and coding the group of eye images for region-of-interest information or cognitive information to create eye image codes and to build a characteristic eye library in a memory in order to improve an iris recognition rate; grouping and partitioning or covering eye codes for eye images stored in the characteristic eye library into a plurality of groups, and obtaining a representative eye code of each of the eye code groups, preprocessing, standardizing, and coding a new eye image not assigned region-of-interest information or cognitive information in the same way as the above-described step to create a test eye code, matching the test eye image to the most similar eye image in the characteristic eye library, and transferring the region-of-interest information or cognitive information assigned to the matched eye image to the test eye image. The transferred information is utilized in the preprocessing of the eye image.

摘要翻译： 本发明提供一种从眼图获取感兴趣区域和/或认知信息的方法，包括以下步骤：对感兴趣区域信息或认知信息对眼图像组进行预处理，标准化和编码， 创建眼睛图像代码并在记忆体中建立一个特征性眼库，以提高虹膜识别率; 将存储在特征眼库中的眼图的眼码分组和分割成多个组，并获得每个眼码组的代表性眼码，对未分配区域的新眼图进行预处理，标准化和编码， 以与上述步骤相同的方式创建兴趣信息或认知信息，以创建测试眼码，将测试眼睛图像与特征眼图库中最相似的眼睛图像相匹配，并将感兴趣区域信息 或分配给匹配的眼睛图像的认知信息到测试眼睛图像。 所传送的信息用于眼图像的预处理。

公开(公告)号：US06232987B1

公开(公告)日：2001-05-15

申请号：US08828553

申请日：1997-03-31

申请人： Hyeong In Choi ,  Nam Sook Wee ,  Kyung Hwan Park ,  Sung Jin Lee ,  Sung Woo Choi ,  Hwan Pyo Moon ,  Seung Won Song

发明人： Hyeong In Choi ,  Nam Sook Wee ,  Kyung Hwan Park ,  Sung Jin Lee ,  Sung Woo Choi ,  Hwan Pyo Moon ,  Seung Won Song

IPC分类号： G06T1160

CPC分类号： G09G5/24 ,  G06K15/02 ,  G06K2215/0045 ,  G06T11/203

摘要： This invention relates to an outline font, and more particularly to a progressive renderable outline font and methods for transforming and rendering the same. Its purpose lies in supplying a progressively renderable Font which can be varied according to the quantity of the data composing the font. The Progressively Renderable Font has the function of controlling the display speed and the quality of the font. For example, if the hardware speed is relatively slow and a high quality font is not needed, only a part of the font data will be transmitted and displayed. On the contrary, if the hardware speed is relatively fast and high quality font is needed, gradually increased data will be transmitted and displayed. Therefore, a font can be transmitted and displayed using minimal data without sacrificing quality. On the other hand, in case of the environment, all the data can be transmitted and displayed so that the quality of the font can be fully realized.

摘要翻译： 本发明涉及一种轮廓字体，更具体地说，涉及一种渐进式可渲染轮廓字体及其变换和渲染方法。 其目的在于提供逐渐呈现的字体，该字体可以根据构成字体的数据量而变化。 逐行渲染字体具有控制显示速度和字体质量的功能。 例如，如果硬件速度相对较慢并且不需要高质量的字体，则只会传送和显示一部分字体数据。 相反，如果硬件速度相对较快，需要高质量的字体，则会传输和显示逐渐增加的数据。 因此，可以使用最少的数据来传输和显示字体而不牺牲质量。 另一方面，在环境的情况下，可以发送和显示所有数据，从而可以充分实现字体的质量。