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公开(公告)号：KR101712673B1
公开(公告)日：2017-03-06
申请号：KR1020100110944
申请日：2010-11-09
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
IPC: G06T7/00
Abstract: 동공중심검출장치및 방법이개시된다. 본발명의실시예들에따르면, 사용자의동공중심을검출하기위해서아다부스트알고리즘및 캠쉬프트알고리즘중 적어도하나를선택적으로적용하여후보영역을검출함으로써, 처리속도를감소시키고, 검출성공률을높일수 있다. 또한, 후보영역에대해서원형검출알고리즘을적용하여초기동공중심을검출하고, 초기동공중심에대해서지역적이진화과정, 라벨링과정및 무게중심연산과정을순차적으로적용하여동공중심을검출함으로써, 동공의불규칙한모양및 관찰형태에상관없이정확한동공중심을검출할수 있다.
Abstract translation: 目的：提供一种用于检测瞳孔中心的装置和方法，通过选择性应用AdaBoost算法和CAMShift算法来检测候选区域。 构成：候选区域检测单元（110）通过选择性地应用AdaBoost算法和CAMShift算法从眼图检测用于检测瞳孔中心的候选区域。 瞳孔中心检测单元（120）向候选区域应用圆检测算法。 瞳孔中心检测单元通过应用局部二值化处理，标记处理和质心计算处理来检测瞳孔中心。
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公开(公告)号：KR1020120049605A
公开(公告)日：2012-05-17
申请号：KR1020100110944
申请日：2010-11-09
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
IPC: G06T7/00
Abstract: PURPOSE: An apparatus and a method for detecting a center of pupil are provided to detect a candidate area by selective application of an AdaBoost algorithm and a CAMShift algorithm. CONSTITUTION: A candidate area detection unit(110) detects a candidate area for detection of a pupil center from an eye image by selective application of an AdaBoost algorithm and a CAMShift algorithm. A pupil center detection unit(120) applies a circle detection algorithm to the candidate area. The pupil center detection unit detects the pupil center by application of a local binarization process, a labeling process, and a centroid computation process.
Abstract translation: 目的：提供一种用于检测瞳孔中心的装置和方法，通过选择性应用AdaBoost算法和CAMShift算法来检测候选区域。 构成：候选区域检测单元（110）通过选择性地应用AdaBoost算法和CAMShift算法从眼图检测用于检测瞳孔中心的候选区域。 瞳孔中心检测单元（120）向候选区域应用圆检测算法。 瞳孔中心检测单元通过应用局部二值化处理，标记处理和质心计算处理来检测瞳孔中心。
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公开(公告)号：KR101831247B1
公开(公告)日：2018-02-22
申请号：KR1020120010049
申请日：2012-01-31
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
Abstract: 원거리시선추적카메라의초점측정장치가제공된다. 이장치는협각카메라를이용하여눈의영상을취득하는영상취득부, 상기취득한눈의영상을다운샘플링(down sampling)하여입력영상을생성하는입력영상생성부, 상기입력영상의평균그레이레벨을학습데이터의평균그레이레벨로보정하는밝기보정부, 상기보정된입력영상을더그만마스크를이용하는초점측정방법, 강의마스크를이용하는초점측정방법, 하르웨이블릿변환방법, 및다우비시웨이블릿변환방법을각각사용하여네 개의초점값들을측정하는초점측정부, 상기측정된네 개의초점값들을각각 0 내지 1 사이의값으로비선형정규화하는정규화부, 상기정규화된네 개의초점값들을시그모이드커널함수를사용하는다층신경망을통해하나의최종초점값으로합산하는초점값합산부, 및상기최종초점값을이용하여초점렌즈를제어하는렌즈제어부를포함하며, 상기하르웨이블릿변환방법및 다우비시웨이블릿변환방법은각각네 단계스케일로초점값을계산하고상기네 단계스케일각각에서고 대역값을저 대역값으로나눈비를소정의가중치를사용하여합하여초점값을측정한다. 본발명에따르면, 보다정확한초점값을갖는위치로초점렌즈를이동시킬수 있다.
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公开(公告)号：KR1020160092669A
公开(公告)日：2016-08-05
申请号：KR1020150013332
申请日：2015-01-28
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
IPC: G06T7/20
CPC classification number: G06T7/20 , G06T2207/30041
Abstract: 외부조명환경의변화에강인한시선추적장치및 방법이개시된다. 시선추적장치는사용자의눈 영역영상으로부터조명에의해발생된각막반사광을추출하는단계및 상기조명에의해발생된각막반사광을기준으로설정된가상의시선추적영역을이용하여조명에의해발생된각막반사광중 시선추적을위해사용되는참조조명에의해발생된각막반사광을구분하는단계를포함할수 있다.
Abstract translation: 公开了一种耐外部照明条件变化的凝视跟踪装置及其方法。 注视跟踪装置可以包括从用户的眼睛区域图像中提取由灯产生的角膜反射光的步骤，以及区分由用于跟踪凝视的参考灯产生的角膜反射光的步骤，所述角膜反射光产生的角膜反射光 通过使用基于由灯产生的角膜反射光而设定的虚拟注视跟踪区域的灯。
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Patent Agency Ranking
公开(公告)号：KR1020140106926A
公开(公告)日：2014-09-04
申请号：KR1020130021236
申请日：2013-02-27
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
CPC classification number: G06T7/62 , G06T3/40 , G06T7/155 , G06T7/254 , G06T2207/30041 , G06T2207/30216
Abstract: An apparatus for detecting pupil according to an embodiment includes a distortion decision part which executes a convex hull processes on a first image, searches a major axis, divides the pupil into upper/lower and left/right regions based on the searched major axis, obtains the sum of a Euclidian distance from the center of a major axis to a pupil boundary with regard to two regions, and decides the distortion of the pupil due to eyelids by using the distance value; a first distortion correction part which has point symmetry based on the center of the searched major axis when the distortion of the pupil due to eyelids exists; and a second distortion correction part which generates a differential image by comparing the correction image (or the first image) and a second image, and executes an ellipsoidal approximation on the differential image.
Abstract translation: 根据实施例的用于检测瞳孔的装置包括：在第一图像上执行凸包处理的失真判定部，基于所搜索的长轴将瞳孔划分为上/下和左/右区域， 相对于两个区域，从长轴的中心到瞳孔边界的欧几里得距离的总和，并且通过使用距离值来确定由于眼睑引起的瞳孔的变形; 第一失真校正部件，当存在由于眼睑引起的瞳孔变形时，基于所搜索的长轴的中心具有点对称性; 以及第二失真校正部，其通过比较校正图像（或第一图像）和第二图像来生成差分图像，并对差分图像执行椭圆近似。
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公开(公告)号：KR1020160092670A
公开(公告)日：2016-08-05
申请号：KR1020150013333
申请日：2015-01-28
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
IPC: G06T5/00
CPC classification number: G06T5/003 , G06T2207/20201 , G06T2207/30041
Abstract: 시선추적시스템에서모션블러측정및 제거장치와방법이개시된다. 모션블러측정장치는사용자의눈 영역영상으로부터참조조명에의해발생된각막반사광을추출하는단계및 상기추출된각막반사광을이용하여상기눈 영역영상의모션블러를확인하는단계를포함할수 있다. 또한, 모션블러제거장치는사용자의눈 영역영상으로부터참조조명에의해발생된각막반사광을추출하는단계, 상기추출된각막반사광을이용하여상기눈 영역영상의블러정보를포함하는블러커널을추정하는단계및 상기추정된블러커널을이용하여상기눈 영역영상의블러를제거하는단계를포함할수 있다.
Abstract translation: 公开了一种用于眼动跟踪系统的运动模糊测量装置和运动模糊消除装置及其方法。 运动模糊测量方法包括：从用户的眼睛区域图像提取由参考灯产生的角膜反射光的步骤; 以及使用所提取的角膜反射光来检查眼睛区域图像的运动模糊的步骤。 运动模糊去除方法包括：从用户的眼睛区域图像提取由参考灯产生的角膜反射光的步骤; 使用所提取的角膜反射光估计包含眼部区域图像的模糊信息的模糊核心的步骤; 以及使用所估计的模糊核来去除眼睛区域图像中的模糊的步骤。
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公开(公告)号：KR1020130088666A
公开(公告)日：2013-08-08
申请号：KR1020120010049
申请日：2012-01-31
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
CPC classification number: G06T3/4046 , G06T2207/20064 , H04N5/23212 , H04N13/383
Abstract: PURPOSE: A focus measurement apparatus of an eye tracking system using multilayer neural network is provided to assemble the capability of collecting high frequency elements in an image based on a spatial region and the capability of reducing the influence of brightness change of an image based on a wavelet region by using the multilayer neural network. CONSTITUTION: An image acquisition unit (1105) acquires an image of an eye by using a narrow angle camera. An input image generation unit (1110) generates an input image by down sampling of the image of the eye. A brightness compensation unit (1115) compensates brightness of the input image. A normalization unit (1125) normalizes four focus values measured in a focus measurement unit (1120) nonlinearly. A focus value addition unit (1130) adds up the normalized four focus values into one final focus value through multilayer neural network. A lens control unit (1135) controls a focus lens by using the final focus value. [Reference numerals] (1105) Image acquisition unit; (1110) Input image generator; (1115) Brightness compensation unit; (1120) Focus measurement; (1125) Normalization unit; (1130) Focus value addition unit; (1135) Lens controller
Abstract translation: 目的：提供一种使用多层神经网络的眼睛跟踪系统的聚焦测量装置，用于组合基于空间区域的图像中收集高频元素的能力，以及降低基于图像的图像亮度变化的影响的能力 小波域通过使用多层神经网络。 构成：图像获取单元（1105）通过使用窄角摄像机来获取眼睛的图像。 输入图像生成单元（1110）通过对眼睛的图像进行下采样来生成输入图像。 亮度补偿单元（1115）补偿输入图像的亮度。 归一化单元（1125）非线性地归一化在聚焦测量单元（1120）中测量的四个焦点值。 焦点值加法单元（1130）通过多层神经网络将归一化的四个焦点值加到一个最终聚焦值中。 透镜控制单元（1135）通过使用最终聚焦值来控制聚焦透镜。 （附图标记）（1105）图像获取单元; （1110）输入图像发生器; （1115）亮度补偿单元; （1120）聚焦测量; （1125）归一化单位; （1130）对焦值加法单位; （1135）镜头控制器
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公开(公告)号：KR1020130121303A
公开(公告)日：2013-11-06
申请号：KR1020120044380
申请日：2012-04-27
Applicant: 한국전자통신연구원 , 동국대학교 산학협력단
IPC: G06T7/20
CPC classification number: G06F3/013 , G06F3/0304
Abstract: The present invention relates to a method and a system for tracking a gaze at a distance. The system for tracking a gaze at a distance according to one embodiment of the present invention comprises: an infrared lighting unit which includes a plurality of infrared lights emitting infrared light toward a user; a gaze tracking module which tracks the position of the user’s face and collects, from the tracked face position, an eye image including at least one reflected light among a plurality of corneal reflected lights caused by the emitted infrared light and a lens reflected light caused by spectacle lenses; a processor which compares the intensity of the lens reflected light in the collected eye image with a threshold and calculates a gaze position by detecting central coordinates of the corneal reflected lights if the intensity of the lens reflected light is less than or equal to the threshold. [Reference numerals] (200) System for tracking a gaze at a distance;(210) Infrared lighting unit;(220) Gaze tracking module;(230) Processor
Abstract translation: 本发明涉及一种用于跟踪远距离凝视的方法和系统。 根据本发明的一个实施例的用于跟踪距离的目视的系统包括：红外线照明单元，其包括朝向用户发射红外光的多个红外光; 注视跟踪模块，其跟踪用户脸部的位置并且从跟踪的脸部位置收集包括由所发射的红外光引起的多个角膜反射光中的至少一个反射光的眼睛图像和透镜反射光 由眼镜镜片引起; 将收集的眼图像中的透镜反射光的强度与阈值进行比较的处理器，如果透镜反射光的强度小于或等于阈值，则通过检测角膜反射光的中心坐标来计算注视位置。 （200）用于跟踪远距离凝视的系统;（210）红外线照明单元;（220）凝视跟踪模块;（230）处理器
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