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1. 发明授权

US08649583B2 Pupil detection device and pupil detection method 有权
标题翻译：瞳孔检测装置和瞳孔检测方法
公开(公告)号：US08649583B2
公开(公告)日：2014-02-11
申请号：US13496713
申请日：2011-06-15
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： G06K9/00
CPC分类号： A61B3/113 , A61B5/18 , G06K9/00604 , G06T7/73 , G06T2207/30201
摘要： A pupil detection device and a pupil detection method, which are capable of stably detecting the pupil by actively using information of cornea-reflected image even when most of the pupil is hidden by the cornea-reflected image. In pupil detection device (100), peripheral state evaluating section (105) sets a plurality of line segments having a reference point of a cornea-reflected image as one end and having a predetermined length, and calculates a luminance evaluation value based on luminance of each pixel in each line segment and reference luminance. Pupil center straight line calculation section (106) specifies a pupil center straight line passing through a center of a pupil image from among a plurality of line segments based on a luminance evaluation value. Pupil search section (107) detects a pupil image based on a luminance state around the pupil center straight line.
摘要翻译：瞳孔检测装置和瞳孔检测方法，即使当大部分瞳孔被角膜反射图像隐藏时，也能够通过主动使用角膜反射图像的信息来稳定地检测瞳孔。在瞳孔检测装置（100）中，周边状态评价部（105）将具有角膜反射图像的基准点的多个线段设定为一端并具有规定长度，并且基于亮度每个线段中的每个像素和参考亮度。瞳孔中心直线计算部分（106）基于亮度评估值指定从多个线段中通过瞳孔图像的中心的瞳孔中心直线。瞳孔搜索部（107）基于瞳孔中心直线周围的亮度状态来检测瞳孔图像。

2. 发明申请

US20120170027A1 EXTERNAL LIGHT GLARE ASSESSMENT DEVICE, LINE OF SIGHT DETECTION DEVICE AND EXTERNAL LIGHT GLARE ASSESSMENT METHOD 有权
标题翻译：外部光眼评估装置，视线检测装置和外部光眼评估方法
公开(公告)号：US20120170027A1
公开(公告)日：2012-07-05
申请号：US13390169
申请日：2011-06-07
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： G01N21/55
CPC分类号： G06K9/0061 , G06T1/00 , G06T7/00 , G06T7/11 , G06T2207/10016 , G06T2207/30201 , G06T2207/30268
摘要： Disclosed are an ambient light reflection determination apparatus and an ambient light reflection determination method enabling to determine reflection without using an edge and even in a case where luminance of a reflection generating part in eyeglasses is low. In a reflection determination apparatus (100), a luminance histogram calculation section (102) calculates a luminance histogram representing a luminance distribution of an eye area image, a difference calculation section (104) calculates a difference histogram by finding a difference between the two luminance histograms calculated from the two eye area images having different photographing timings, an evaluation value calculation section (105) calculates an evaluation value regarding reflection of ambient light based on the difference histogram and a weight in accordance with luminance, and a reflection determination section (107) determines the reflection of ambient light based on the calculated evaluation value.
摘要翻译：公开了环境光反射确定装置和环境光反射确定方法，其能够在不使用边缘的情况下确定反射，并且即使在眼镜中的反射产生部的亮度低的情况下也是如此。在反射判定装置（100）中，亮度直方图计算部（102）计算表示眼睛区域图像的亮度分布的亮度直方图，差分计算部（104）通过求出两个亮度根据具有不同拍摄定时的两个眼睛区域图像计算的直方图，评估值计算部（105）根据差异直方图和根据亮度的权重来计算关于环境光的反射的评价值，以及反射判定部）根据计算的评估值确定环境光的反射。

3. 发明授权

US08503737B2 Visual line estimating apparatus 有权
标题翻译：视线估计装置
公开(公告)号：US08503737B2
公开(公告)日：2013-08-06
申请号：US13240200
申请日：2011-09-22
申请人： Kenji Oka , Sotaro Tsukizawa
发明人： Kenji Oka , Sotaro Tsukizawa
IPC分类号： G06K9/00
CPC分类号： G06K9/0061 , G06K9/00838
摘要： The visual line estimating apparatus 200 comprises: an image inputting section 201 operable to take an image of a human; a visual line measurement section 202 operable to measure a direction of a visual line on the basis of the taken image; a visual line measuring result storing section 211 operable to store therein visual line measuring results previously measured; a representative value extracting section 212 operable to extract a previous representative value; and a visual line determining section 213 operable to judge whether or not a difference between the representative value and the visual line measuring result is lower than a predetermined threshold to determine a visual line estimating result from the representative value and the visual line measuring result.
摘要翻译：视线估计装置200包括：图像输入部201，用于拍摄人的图像; 视线测量部分202，可操作以基于所拍摄的图像测量视线的方向; 可视线测量结果存储部分211，用于存储先前测量的可视线测量结果; 代表值提取部212，用于提取先前的代表值; 以及视线确定部分213，其可操作以判断代表值和视线测量结果之间的差是否低于预定阈值，以根据代表值和视线测量结果确定视线估计结果。

4. 发明授权

US08983235B2 Pupil detection device and pupil detection method 有权
标题翻译：瞳孔检测装置和瞳孔检测方法
公开(公告)号：US08983235B2
公开(公告)日：2015-03-17
申请号：US13821382
申请日：2011-09-22
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： G06K9/32 , G06K9/00
CPC分类号： G06K9/00597 , G06K9/00604 , G06K9/00845
摘要： Disclosed is a pupil detection device capable improving the pupil detection accuracy even if a detection target image is a low-resolution image. In a pupil detection device (100), an eye area actual size calculation unit (102) acquires an actual scale value of an eye area, a pupil state prediction unit (103) calculates an actual scale prediction value of a pupil diameter, a necessary resolution estimation unit (105) calculates a target value of resolution on the basis of the calculated actual scale prediction value, an eye area image normalization unit (107) calculates a scale-up/scale-down factor on the basis of the calculated target value of resolution and the actual scale value of the eye area, and normalizes the image of the eye area on the basis of the calculated scale-up/scale-down factor, and a pupil detection unit (108) detects a pupil image from the normalized eye area image.
摘要翻译：公开了即使检测目标图像是低分辨率图像也能够提高瞳孔检测精度的瞳孔检测装置。在瞳孔检测装置（100）中，眼部实际尺寸计算部（102）获取眼睛区域的实际比例值，瞳孔状态预测部（103）计算瞳孔直径的实际尺度预测值，必要分辨率估计单元（105）根据计算出的实际比例预测值计算分辨率的目标值，眼睛区域图像归一化单元（107）基于计算出的目标值计算放大/缩小比例因子的分辨率和眼睛区域的实际比例值，并且基于计算出的放大/缩小因子来对眼睛区域的图像进行归一化，并且瞳孔检测单元（108）从归一化后的瞳孔图像检测瞳孔图像眼睛区域图像。

5. 发明申请

US20120076438A1 VISUAL LINE ESTIMATING APPARATUS 有权
标题翻译：可视线估计装置
公开(公告)号：US20120076438A1
公开(公告)日：2012-03-29
申请号：US13240200
申请日：2011-09-22
申请人： Kenji Oka , Sotaro Tsukizawa
发明人： Kenji Oka , Sotaro Tsukizawa
IPC分类号： G06K9/36
CPC分类号： G06K9/0061 , G06K9/00838
摘要： The visual line estimating apparatus 200 comprises: an image inputting section 201 operable to take an image of a human; a visual line measurement section 202 operable to measure a direction of a visual line on the basis of the taken image; a visual line measuring result storing section 211 operable to store therein visual line measuring results previously measured; a representative value extracting section 212 operable to extract a previous representative value; and a visual line determining section 213 operable to judge whether or not a difference between the representative value and the visual line measuring result is lower than a predetermined threshold to determine a visual line estimating result from the representative value and the visual line measuring result.
摘要翻译：视线估计装置200包括：图像输入部201，用于拍摄人的图像; 视线测量部分202，可操作以基于所拍摄的图像测量视线的方向; 可视线测量结果存储部分211，用于存储先前测量的可视线测量结果; 代表值提取部212，用于提取先前的代表值; 以及视线确定部分213，其可操作以判断代表值和视线测量结果之间的差是否低于预定阈值，以根据代表值和视线测量结果确定视线估计结果。

6. 发明授权

US08810642B2 Pupil detection device and pupil detection method 有权
标题翻译：瞳孔检测装置和瞳孔检测方法
公开(公告)号：US08810642B2
公开(公告)日：2014-08-19
申请号：US13318431
申请日：2011-01-24
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： H04N7/18 , G06K9/00
CPC分类号： G06K9/00604
摘要： In a pupil detection apparatus, based on a calculated value of red-eye occurrence intensity that is relative brightness of brightness within a first pupil image detected by a pupil detector with respect to brightness of a peripheral image outside the first pupil image, and a correlation characteristic of red-eye occurrence intensity and a pupil detection accuracy value, a switching selector selectively outputs a detection result of the first pupil image or a detection result of a second pupil image detected by a pupil detector. The pupil detection apparatus has a first imaging pair including an imager and an illuminator separated by a separation distance, and a second imaging pair whose separation distance is greater than that of the first imaging pair.
摘要翻译：在瞳孔检测装置中，基于计算的红眼发生强度的计算值，其是与瞳孔检测器检测的第一瞳孔图像内的亮度相对于第一瞳孔图像外部的外围图像的亮度的亮度的相对亮度，以及相关性红眼发生强度和瞳孔检测精度值的特征，切换选择器选择性地输出第一光瞳图像的检测结果或由瞳孔检测器检测到的第二瞳孔图像的检测结果。瞳孔检测装置具有第一成像对，其包括成像器和由分隔距离分开的照明器，以及第二成像对，其分离距离大于第一成像对的间隔距离。

7. 发明授权

US08659751B2 External light glare assessment device, line of sight detection device and external light glare assessment method 有权
标题翻译：外部光眩光评估装置，视线检测装置和外部光眩光评估方法
公开(公告)号：US08659751B2
公开(公告)日：2014-02-25
申请号：US13390169
申请日：2011-06-07
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： G01B9/00 , G01N21/00 , G01B11/02
CPC分类号： G06K9/0061 , G06T1/00 , G06T7/00 , G06T7/11 , G06T2207/10016 , G06T2207/30201 , G06T2207/30268
摘要： Disclosed are an ambient light reflection determination apparatus and an ambient light reflection determination method enabling to determine reflection without using an edge and even in a case where luminance of a reflection generating part in eyeglasses is low. In a reflection determination apparatus (100), a luminance histogram calculation section (102) calculates a luminance histogram representing a luminance distribution of an eye area image, a difference calculation section (104) calculates a difference histogram by finding a difference between the two luminance histograms calculated from the two eye area images having different photographing timings, an evaluation value calculation section (105) calculates an evaluation value regarding reflection of ambient light based on the difference histogram and a weight in accordance with luminance, and a reflection determination section (107) determines the reflection of ambient light based on the calculated evaluation value.
摘要翻译：公开了环境光反射确定装置和环境光反射确定方法，其能够在不使用边缘的情况下确定反射，并且即使在眼镜中的反射产生部的亮度低的情况下也是如此。在反射判定装置（100）中，亮度直方图计算部（102）计算表示眼睛区域图像的亮度分布的亮度直方图，差分计算部（104）通过求出两个亮度根据具有不同拍摄定时的两个眼睛区域图像计算的直方图，评估值计算部（105）根据差异直方图和根据亮度的权重来计算关于环境光的反射的评价值，以及反射判定部）根据计算的评估值确定环境光的反射。

8. 发明申请

US20130170754A1 PUPIL DETECTION DEVICE AND PUPIL DETECTION METHOD 有权
标题翻译： PUPIL检测装置和检测方法
公开(公告)号：US20130170754A1
公开(公告)日：2013-07-04
申请号：US13821382
申请日：2011-09-22
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： G06K9/00
CPC分类号： G06K9/00597 , G06K9/00604 , G06K9/00845
摘要： Disclosed is a pupil detection device capable improving the pupil detection accuracy even if a detection target image is a low-resolution image. In a pupil detection device (100), an eye area actual size calculation unit (102) acquires an actual scale value of an eye area, a pupil state prediction unit (103) calculates an actual scale prediction value of a pupil diameter, a necessary resolution estimation unit (105) calculates a target value of resolution on the basis of the calculated actual scale prediction value, an eye area image normalization unit (107) calculates a scale-up/scale-down factor on the basis of the calculated target value of resolution and the actual scale value of the eye area, and normalizes the image of the eye area on the basis of the calculated scale-up/scale-down factor, and a pupil detection unit (108) detects a pupil image from the normalized eye area image.
摘要翻译：公开了即使检测目标图像是低分辨率图像也能够提高瞳孔检测精度的瞳孔检测装置。在瞳孔检测装置（100）中，眼部实际尺寸计算部（102）获取眼睛区域的实际比例值，瞳孔状态预测部（103）计算瞳孔直径的实际尺度预测值，必要分辨率估计单元（105）根据计算出的实际比例预测值计算分辨率的目标值，眼睛区域图像归一化单元（107）基于计算出的目标值计算放大/缩小比例因子的分辨率和眼睛区域的实际比例值，并且基于计算出的放大/缩小因子来对眼睛区域的图像进行归一化，并且瞳孔检测单元（108）从归一化后的瞳孔图像检测瞳孔图像眼睛区域图像。

9. 发明申请

US20120177266A1 PUPIL DETECTION DEVICE AND PUPIL DETECTION METHOD 有权
标题翻译： PUPIL检测装置和检测方法
公开(公告)号：US20120177266A1
公开(公告)日：2012-07-12
申请号：US13496713
申请日：2011-06-15
申请人： Sotaro Tsukizawa , Kenji Oka
发明人： Sotaro Tsukizawa , Kenji Oka
IPC分类号： G06K9/00
CPC分类号： A61B3/113 , A61B5/18 , G06K9/00604 , G06T7/73 , G06T2207/30201
摘要： A pupil detection device and a pupil detection method, which are capable of stably detecting the pupil by actively using information of cornea-reflected image even when most of the pupil is hidden by the cornea-reflected image. In pupil detection device (100), peripheral state evaluating section (105) sets a plurality of line segments having a reference point of a cornea-reflected image as one end and having a predetermined length, and calculates a luminance evaluation value based on luminance of each pixel in each line segment and reference luminance. Pupil center straight line calculation section (106) specifies a pupil center straight line passing through a center of a pupil image from among a plurality of line segments based on a luminance evaluation value. Pupil search section (107) detects a pupil image based on a luminance state around the pupil center straight line.
摘要翻译：瞳孔检测装置和瞳孔检测方法，即使当大部分瞳孔被角膜反射图像隐藏时，也能够通过主动使用角膜反射图像的信息来稳定地检测瞳孔。在瞳孔检测装置（100）中，周边状态评价部（105）将具有角膜反射图像的基准点的多个线段设定为一端并具有规定长度，并且基于亮度每个线段中的每个像素和参考亮度。瞳孔中心直线计算部分（106）基于亮度评估值指定从多个线段中通过瞳孔图像的中心的瞳孔中心直线。瞳孔搜索部（107）基于瞳孔中心直线周围的亮度状态来检测瞳孔图像。

10. 发明授权

US09082002B2 Detection device and detection method 有权
标题翻译：检测装置及检测方法
公开(公告)号：US09082002B2
公开(公告)日：2015-07-14
申请号：US13816395
申请日：2011-12-20
申请人： Sotaro Tsukizawa , Hiroyuki Kubotani , Zhiheng Niu , Sugiri Pranata
发明人： Sotaro Tsukizawa , Hiroyuki Kubotani , Zhiheng Niu , Sugiri Pranata
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06K9/00255 , G06K9/00604 , G06K9/4614
摘要： A detection device capable of reliably detecting an object to be detected. An intersection region pattern setting unit (106) sets a configuration pattern of a first intersection region pattern group in sequence for each unit image pair. Each intersection region pattern is defined by set image information which denotes locations and sizes of regions (where n is a natural number greater than 1) within respective unit images (e.g., unit image plane coordinates), as well as whether each region is set within either or both of a first unit image and a second unit image. A detection unit (108) detects the object to be detected, based on a total feature value relating to each configuration pattern of the first intersection region pattern group, computed by a feature value computation unit (107), and a strong identification apparatus configured from a plurality of weak identification apparatuses and stored in an identification apparatus storage unit (112).
摘要翻译：能够可靠地检测被检测体的检测装置。相交区域图案设定单元对每个单位图像对依次设置第一交叉区域图案组的配置图案。每个交叉区域图案由表示各单位图像内的区域（其中n是大于1的自然数）的位置和大小的设定图像信息定义，以及各个区域是否设置在各个单位图像内第一单位图像和第二单位图像中的一个或两个。检测单元（108）基于与由特征量计算单元（107）计算的第一交叉区域图案组的每个配置模式相关的总特征值来检测要检测的对象，以及强识别装置多个弱识别装置，并存储在识别装置存储单元（112）中。

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