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公开(公告)号：KR101395819B1
公开(公告)日：2014-05-16
申请号：KR1020130139398
申请日：2013-11-15
Applicant: 동국대학교 산학협력단
Abstract: An eye tracking device includes: a front camera which is positioned to face the front of a user to create a front image; an eye camera which is positioned to face the eyes of the user to create an eye image; a processor which tracks the gaze of the user with reference to the eye image according to pre-defined instructions, and points an object on the front image corresponding to the gaze of the user; and a memory which stores the instructions. The instructions are defined to perform the steps: extracting first pupil coordinates from the eye image when a user gazes at the vertexes of a pre-specified rectangle; calculating the coordinates of the front image corresponding to the first pupil coordinates according to a pre-specified transformation formula; calculating an error between the coordinates of the front image and reference coordinates that are the coordinates of the vertexes; creating a corrected transformation formula by correcting the transformation formula so as to reduce the error; extracting second pupil coordinates from the eye image; calculating the coordinates of the front image corresponding to the second pupil coordinates according to the corrected transformation formula; and pointing an object corresponding to the coordinates of the front image.
Abstract translation: 眼睛跟踪装置包括：正面照相机，其被定位成面对使用者的前方以创建正面图像; 定位成面对用户的眼睛以创建眼睛图像的眼睛相机; 根据预定义的指令，参照眼睛图像跟踪用户的凝视的处理器，并且对应于用户的视线的前方图像上的对象指向; 以及存储指令的存储器。 这些指令被定义为执行以下步骤：当用户注视到预定矩形的顶点时，从眼睛图像中提取第一瞳孔坐标; 根据预定的变换公式计算与第一瞳孔坐标对应的前图像的坐标; 计算前图像的坐标和作为顶点坐标的参考坐标之间的误差; 通过校正变换公式来产生校正的变换公式以减少误差; 从眼图中提取第二瞳孔坐标; 根据校正的变换公式计算与第二瞳孔坐标对应的前图像的坐标; 并指向与前方图像的坐标对应的对象。
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公开(公告)号：KR101306922B1
公开(公告)日：2013-09-10
申请号：KR1020110135269
申请日：2011-12-15
Applicant: 동국대학교 산학협력단
IPC: A61B5/0476 , A61B5/11
Abstract: 촬영 장치와 뇌파 센서를 결합하여, 촬영 장치로부터 취득된 영상 이미지로부터 사용자의 머리 움직임을 예측하여 머리 움직임에 따른 뇌파 데이터에 발생한 노이즈를 제거할 수 있는 뇌파 측정 장치 및 뇌파 측정 방법이 제공된다. 본 발명의 일 측면에 따른 뇌파 측정 장치는 촬영 장치, 피험자의 뇌파 데이터를 취득하는 뇌파 센서 및 제어장치를 포함하되, 상기 제어장치는 상기 촬영 장치에 의해 취득되는 이미지들을 분석하여 상기 피험자의 머리 움직임을 인식하는 움직임 인식부 및 상기 움직임 인식부에 의해 인식된 머리 움직임의 지속 시간이 소정의 임계치 이상인 경우, 상기 지속 시간 동안 취득된 뇌파 데이터를 보정하는 보정부를 포함할 수 있다.
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公开(公告)号：KR1020130068056A
公开(公告)日：2013-06-25
申请号：KR1020110135269
申请日：2011-12-15
Applicant: 동국대학교 산학협력단
IPC: A61B5/0476 , A61B5/11
Abstract: PURPOSE: A device for measuring an EEG(Electro Encephalogram) and a method thereof are provided to remove noise generated from a head motion in brainwave data by predicting the head motion of a user from an image obtained from a photographing device uniting the photographing device in an EEG sensor. CONSTITUTION: A device for measuring an EEG comprises a photographing device(20); an EEG sensor(30) acquiring brainwave data of a subject; and a control device(10). The control device comprises a motion recognition part(110) recognizing a head motion of a subject by analyzing images obtained from the photographing device, and a correction part(120) correcting brainwave data obtained for duration time when the duration time of the head motion recognized by the motion recognition part is over a predetermined critical. [Reference numerals] (10) Control device; (100) Image data input part; (110) Motion recognition part; (120) Correction part; (130) Brainwave data input part; (20) Photographing device; (30) Brainwave sensor; (40) Brainwave data output device
Abstract translation: 目的：提供一种用于测量脑电图（EEG）的方法及其方法，用于通过从拍摄装置获得的图像中预测用户头部运动来消除脑波数据中头部运动产生的噪声 一个EEG传感器。 构成：用于测量EEG的装置包括拍摄装置（20）; 获取对象的脑波数据的EEG传感器（30）; 和控制装置（10）。 控制装置包括通过分析从拍摄装置获取的图像来识别对象的头部运动的运动识别部分（110），以及校正部分（120），用于校正当头部运动的持续时间被识别时持续时间获得的持续时间的脑波数据 由运动识别部分超过预定的关键。 （附图标记）（10）控制装置; （100）图像数据输入部分; （110）运动识别部分; （120）修正部分; （130）脑波数据输入部分; （20）摄影装置; （30）脑波传感器; （40）脑波数据输出装置
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