专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US5751286A Image query system and method 失效
公开(公告)号：US5751286A
公开(公告)日：1998-05-12
申请号：US788150
申请日：1997-01-24
申请人： Ronald Jason Barber , Bradley James Beitel , William Robinson Equitz , Myron Dale Flickner , Carlton Wayne Niblack , Dragutin Petkovic , Thomas Randolph Work , Peter Cornelius Yanker
发明人： Ronald Jason Barber , Bradley James Beitel , William Robinson Equitz , Myron Dale Flickner , Carlton Wayne Niblack , Dragutin Petkovic , Thomas Randolph Work , Peter Cornelius Yanker
IPC分类号： G06F17/30 , G06K9/46 , G06K9/64 , G06F3/14
CPC分类号： G06K9/4647 , G06F17/3025 , G06F17/30256 , G06F17/30259 , G06F17/30262 , G06K9/4652 , G06K9/6212 , Y10S707/99934 , Y10S707/99936 , Y10S715/968
摘要： Images in an image database are searched in response to queries which include the visual characteristics of the images such as colors, textures, shapes, and sizes, as well as by textual tags appended to the images. Queries are constructed in an image query construction area in response to values of representations of the visual characteristics and to locations of the representations in the image query construction area.

12. 发明授权

US5647058A Method for high-dimensionality indexing in a multi-media database 失效
标题翻译：多媒体数据库中高维度索引的方法
公开(公告)号：US5647058A
公开(公告)日：1997-07-08
申请号：US607922
申请日：1996-02-28
申请人： Rakesh Agrawal , William Robinson Equitz , Christos Faloutsos , Myron Dale Flickner , Arun Narasimha Swami
发明人： Rakesh Agrawal , William Robinson Equitz , Christos Faloutsos , Myron Dale Flickner , Arun Narasimha Swami
IPC分类号： G06F17/30
CPC分类号： G06F17/30017 , G06K9/46 , G06K9/6232 , Y10S707/99931 , Y10S707/99945
摘要： A high dimensional indexing method is disclosed which takes a set of objects that can be viewed as N-dimensional data vectors and builds an index which treats the objects like k-dimensional points. The method first defines and applies a set of feature extraction functions that admit some similarity measure for each of the stored objects in the database. The feature vector is then transformed in a manner such that the similarity measure is preserved and that the information of the feature vector v is concentrated in only a few coefficients. The entries of the feature vectors are truncated such that the entries which contribute little on the average to the information of the transformed vectors are removed. An index based on the truncated feature vectors is subsequently built using a point access method (PAM). A preliminary similarity search can then be conducted on the set of truncated transformed vectors using the previously created index to retrieve the qualifying records. A second search on the previously retrieved set of vectors is used to eliminate the false positives and to get the results of the desired similarity search.
摘要翻译：公开了一种高维度索引方法，其采用可以被视为N维数据向量的一组对象，并构建一个对象，如k维点。该方法首先定义并应用一组特征提取函数，其允许对于数据库中的每个存储对象的一些相似性度量。然后以保持相似性度量的方式变换特征向量，并且特征向量+ E，rar v + EE的信息仅集中在少数系数中。特征向量的条目被截断，从而删除对转换的向量的信息的平均贡献很小的条目。随后使用点访问方法（PAM）构建基于截断的特征向量的索引。然后可以使用先前创建的索引对截断的变换向量集进行初步相似性搜索以检索合格记录。使用先前检索的矢量集合的第二搜索来消除假阳性并获得期望的相似性搜索的结果。

13. 发明授权

US06578962B1 Calibration-free eye gaze tracking 有权
标题翻译：无校准眼注视追踪
公开(公告)号：US06578962B1
公开(公告)日：2003-06-17
申请号：US09844682
申请日：2001-04-27
申请人： Arnon Amir , Myron Dale Flickner , David Bruce Koons , Gregory Fraser Russell
发明人： Arnon Amir , Myron Dale Flickner , David Bruce Koons , Gregory Fraser Russell
IPC分类号： A61B314
CPC分类号： A61B3/113 , G06K9/0061
摘要： A system and method for calibration-free tracking of a user's eye gaze vector and point of regard even if substantial head movement or rotation occurs. The preferred embodiment includes two synchronized interlaced cameras, each viewing the user's eye and having on-axis lighting that is alternately modulated. An image difference between lighted and unlighted images of the eye is used to identify a user's pupil. A plane containing the gaze vector is defined by rotating a base plane through the angle in a camera image plane between a pupil center, a first glint, and a second glint. The intersection of two such planes (one from each camera), defines the gaze vector. The gaze position is the intersection of the gaze vector with the object being viewed by the user. Alternate embodiments are also described.
摘要翻译：即使发生实质的磁头移动或旋转，也可以使用用户的眼睛注视向量和观察点进行无校准跟踪的系统和方法。优选实施例包括两个同步的隔行相机，每个相机都观看用户的眼睛并具有交替调制的轴上照明。使用眼睛的点亮图像和未照明图像之间的图像差异来识别用户的瞳孔。通过在瞳孔中心，第一闪烁和第二闪光之间的相机图像平面中旋转基座平面通过角度来限定包含注视向量的平面。两个这样的平面（每个相机之一）的交点定义了注视矢量。注视位置是注视矢量与用户正在观看的对象的交点。还描述了替代实施例。

14. 发明授权

US06393136B1 Method and apparatus for determining eye contact 有权
标题翻译：用于确定眼睛接触的方法和装置
公开(公告)号：US06393136B1
公开(公告)日：2002-05-21
申请号：US09225476
申请日：1999-01-04
申请人： Arnon Amir , Myron Dale Flickner , David Bruce Koons , Carlos Hitoshi Morimoto , Shumin Zhai
发明人： Arnon Amir , Myron Dale Flickner , David Bruce Koons , Carlos Hitoshi Morimoto , Shumin Zhai
IPC分类号： G06K900
CPC分类号： G06F3/011 , G06T7/70
摘要： A method and apparatus determine when a subject is looking at a specific target area by estimating a divergence angle between (1) the direction in which the subject is looking and (2) the direction from the subject directly to the target area. This technique accesses whether the subject is looking at a particular area. The invention may further condition this determination according to the subject's distance from the target area, because there is less tolerance for divergent angles when the subject is farther away. In one embodiment, the divergence angle is estimated using the position of a glint of light in the subject's pupil. The glint is created by a light source located in the target area. If the glint is sufficiently central to the pupil, with the camera and light source being near the target area, the subject is looking at the target area. At long distances, when the glint is not sufficiently discernable from the pupil, another technique may be employed to estimate divergence angle. Namely, the plane of the subject's face is computed, and analyzed with respect to a vector between the subject's face and the target area. If the plane is substantially normal to the vector, the subject is looking at the target area.
摘要翻译：一种方法和装置通过估计（1）被摄体正在观察的方向和（2）从被摄体直接到目标区域的方向之间的发散角度来确定被摄体何时观察特定目标区域。该技术访问主体是否正在查看特定区域。本发明还可以根据被摄体距离目标区域的距离来进一步调节该确定，因为当被摄体越远时，对于发散角具有较小的公差。在一个实施例中，使用受试者瞳孔内的闪光的位置来估计发散角。闪光由位于目标区域的光源创建。如果闪光对于瞳孔是足够中心的，相机和光源靠近目标区域，则被摄物体正在观察目标区域。在长距离处，当闪烁不能从瞳孔中辨别出来时，可以采用另一种技术来估计发散角。即，计算被检者的脸的平面，并且相对于被检者的面部和目标区域之间的矢量进行分析。如果平面与矢量基本正交，则对象正在观察目标区域。

15. 发明授权

US06204828B1 Integrated gaze/manual cursor positioning system 失效
标题翻译：集成注视/手动光标定位系统
公开(公告)号：US06204828B1
公开(公告)日：2001-03-20
申请号：US09052321
申请日：1998-03-31
申请人： Arnon Amir , Myron Dale Flickner , Steven Carlyle Ihde , Shumin Zhai
发明人： Arnon Amir , Myron Dale Flickner , Steven Carlyle Ihde , Shumin Zhai
IPC分类号： G09G500
CPC分类号： G06F3/013 , G06F3/038 , G06F2203/0381
摘要： A computer-driven system aids operator positioning of a cursor by integrating eye gaze and manual operator input, thus reducing pointing time and operator fatigue. A gaze tracking apparatus monitors operator eye orientation while the operator views a video screen. Concurrently, the computer monitors an input device, such as a mouse, for mechanical activation by the operator. According to the operator's eye orientation, the computer calculates the operator's gaze position. Also computed is a gaze area, comprising a sub-region of the video screen that includes the gaze position. This region, for example, may be a circle of sufficient radius to include the point of actual gaze with a certain likelihood. When the computer detects mechanical activation of the operator input device, it determines an initial cursor display position within the current gaze area. This position may be a predetermined location with respect to the gaze area, such as a point on the bottom of the gaze area periphery. A different approach uses the initial mechanical activation of the input device to determine the direction of motion, and sets the initial display position on the opposite side of the gaze area from this motion so that continued movement of the input device brings the cursor to the gaze position in a seamless transition between gaze and manual input. After displaying the cursor on the video screen at the initial display position, the cursor is thereafter positioned manually according to the operator's use of the input device, without regard to gaze.
摘要翻译：计算机驱动系统通过集成眼睛注视和手动操作员输入来帮助操作者定位光标，从而减少指示时间和操作者的疲劳。注视跟踪装置在操作员观看视频屏幕时监视操作者的眼睛方向。同时，计算机监视诸如鼠标的输入设备，以供操作者机械启动。根据操作员的眼睛方向，计算机计算操作员的注视位置。还计算出注视区域，其包括包括注视位置的视频屏幕的子区域。例如，该区域可以是足够半径的圆以具有某种可能性的实际注视点。当计算机检测到操作者输入装置的机械启动时，它确定当前凝视区域内的初始光标显示位置。该位置可以是相对于注视区域的预定位置，例如注视区域外围底部的点。不同的方法使用输入装置的初始机械激活来确定运动方向，并将初始显示位置设置在距离该运动的目视区域的相对侧，使得输入装置的继续移动将光标移动到目视在凝视和手动输入之间的无缝转换中的位置。在初始显示位置在视频屏幕上显示光标后，随后根据操作者对输入设备的使用手动定位光标，而不考虑注视。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式