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1. 发明授权

US09532011B2 Method and apparatus for projective volume monitoring 有权
标题翻译：投影体积监测的方法和装置
公开(公告)号：US09532011B2
公开(公告)日：2016-12-27
申请号：US13541399
申请日：2012-07-03
申请人： John Drinkard , Ambrish Tyagi , Yoshiharu Tani , Koichi Kinoshita
发明人： John Drinkard , Ambrish Tyagi , Yoshiharu Tani , Koichi Kinoshita
IPC分类号： H04N7/18 , G06T7/00
CPC分类号： H04N7/181 , G06T7/596 , G06T2207/10012 , G06T2207/10021
摘要： According to one aspect of the teachings presented herein, a machine vision system includes one or more sensor units that are each advantageously configured to use different pairings among a set of spaced-apart image sensors, to provide redundant object detection for a primary monitoring zone, while simultaneously providing for the detection of objects that may shadow the primary monitoring zone. Further, a plurality of “mitigations” and enhancements provide safety-of-design and robust operation. Such mitigations and enhancements include, for example, bad-pixel detection and mapping, cluster-based pixel processing for improved object detection, test-image injection for fault detection, dual-channel, redundant processing for safety-critical object detection, temporal filtering to reduce false detections, and the use of high dynamic range (HDR) images, for improved operation over variable ambient lighting conditions.
摘要翻译：根据本文呈现的教导的一个方面，机器视觉系统包括一个或多个传感器单元，每个传感器单元有利地配置为在一组间隔开的图像传感器中使用不同的配对，以为主监视区域提供冗余对象检测，同时提供可能影响主监控区域的对象的检测。此外，多个“缓解”和增强提供设计安全性和鲁棒操作。这样的缓解和增强包括例如坏像素检测和映射，用于改进的对象检测的基于簇的像素处理，用于故障检测的测试图像注入，用于安全关键对象检测的双通道冗余处理，时间过滤减少错误检测和使用高动态范围（HDR）图像，以改善在可变环境照明条件下的操作。

2. 发明申请

US20130076866A1 Method and Apparatus for Projective Volume Monitoring 有权
标题翻译：投影体积监测方法与装置
公开(公告)号：US20130076866A1
公开(公告)日：2013-03-28
申请号：US13541399
申请日：2012-07-03
申请人： John Drinkard , Ambrish Tyagi , Yoshiharu Tani , Koichi Kinoshita
发明人： John Drinkard , Ambrish Tyagi , Yoshiharu Tani , Koichi Kinoshita
IPC分类号： H04N7/18
CPC分类号： H04N7/181 , G06T7/596 , G06T2207/10012 , G06T2207/10021
摘要： According to one aspect of the teachings presented herein, a machine vision system includes one or more sensor units that are each advantageously configured to use different pairings among a set of spaced-apart image sensors, to provide redundant object detection for a primary monitoring zone, while simultaneously providing for the detection of objects that may shadow the primary monitoring zone. Further, a plurality of “mitigations” and enhancements provide safety-of-design and robust operation. Such mitigations and enhancements include, for example, bad-pixel detection and mapping, cluster-based pixel processing for improved object detection, test-image injection for fault detection, dual-channel, redundant processing for safety-critical object detection, temporal filtering to reduce false detections, and the use of high dynamic range (HDR) images, for improved operation over variable ambient lighting conditions.
摘要翻译：根据本文呈现的教导的一个方面，机器视觉系统包括一个或多个传感器单元，每个传感器单元有利地配置为在一组间隔开的图像传感器中使用不同的配对，以为主监视区域提供冗余对象检测，同时提供可能影响主监控区域的对象的检测。此外，多个缓解和增强提供设计安全性和鲁棒操作。这样的缓解和增强包括例如坏像素检测和映射，用于改进的对象检测的基于簇的像素处理，用于故障检测的测试图像注入，用于安全关键对象检测的双通道冗余处理，时间过滤减少错误检测和使用高动态范围（HDR）图像，以改善在可变环境照明条件下的操作。

3. 发明授权

US08947505B2 Method and apparatus for generating texture in a three-dimensional scene 有权
标题翻译：用于在三维场景中产生纹理的方法和装置
公开(公告)号：US08947505B2
公开(公告)日：2015-02-03
申请号：US13075214
申请日：2011-03-30
申请人： Ambrish Tyagi , John Drinkard
发明人： Ambrish Tyagi , John Drinkard
IPC分类号： H04N13/02 , G01B11/25 , G06T7/00 , G06T15/00
CPC分类号： G01B11/2545 , G06T7/521 , G06T7/593 , G06T2207/10012 , G06T2207/10152
摘要： In one aspect of the teachings herein, a 3D imaging apparatus uses a “texture tool” or facilitates the use of such a tool by an operator, to add artificial texture to a scene being imaged, for 3D imaging of surfaces or background regions in the scene that otherwise lack sufficient texture for determining sufficiently dense 3D range data. In at least one embodiment, the 3D imaging apparatus provides for iterative or interactive imaging, such as by dynamically indicating that one or more regions of the scene require artificial texturing via the texture tool for accurate 3D imaging, and then indicating whether or not the addition of artificial texture cured the texture deficiency and/or whether any other regions within the image require additional texture.
摘要翻译：在本文的教导的一个方面，3D成像设备使用“纹理工具”或促进操作者使用这样的工具，以将人造纹理添加到被成像的场景中，以用于3D图像中的表面或背景区域的3D成像否则缺乏足够的纹理来确定足够密集的3D范围数据。在至少一个实施例中，3D成像装置提供迭代或交互式成像，例如通过动态地指示场景的一个或多个区域需要经过纹理工具的人造纹理以进行精确的3D成像，然后指示是否添加的人造纹理固化了纹理缺陷和/或图像中的任何其他区域是否需要额外的纹理。

4. 发明申请

US20110242283A1 Method and Apparatus for Generating Texture in a Three-Dimensional Scene 有权
标题翻译：用于在三维场景中生成纹理的方法和装置
公开(公告)号：US20110242283A1
公开(公告)日：2011-10-06
申请号：US13075214
申请日：2011-03-30
申请人： Ambrish Tyagi , John Drinkard
发明人： Ambrish Tyagi , John Drinkard
IPC分类号： H04N13/02
CPC分类号： G01B11/2545 , G06T7/521 , G06T7/593 , G06T2207/10012 , G06T2207/10152
摘要： In one aspect of the teachings herein, a 3D imaging apparatus uses a “texture tool” or facilitates the use of such a tool by an operator, to add artificial texture to a scene being imaged, for 3D imaging of surfaces or background regions in the scene that otherwise lack sufficient texture for determining sufficiently dense 3D range data. In at least one embodiment, the 3D imaging apparatus provides for iterative or interactive imaging, such as by dynamically indicating that one or more regions of the scene require artificial texturing via the texture tool for accurate 3D imaging, and then indicating whether or not the addition of artificial texture cured the texture deficiency and/or whether any other regions within the image require additional texture.
摘要翻译：在本文的教导的一个方面，3D成像设备使用“纹理工具”或促进操作者使用这样的工具，以将人造纹理添加到被成像的场景中，以用于3D图像中的表面或背景区域的3D成像否则缺乏足够的纹理来确定足够密集的3D范围数据。在至少一个实施例中，3D成像装置提供迭代或交互式成像，例如通过动态地指示场景的一个或多个区域需要经过纹理工具的人造纹理以进行精确的3D成像，然后指示是否添加的人造纹理固化了纹理缺陷和/或图像中的任何其他区域是否需要额外的纹理。

5. 发明申请

US20120123563A1 Method and Apparatus for Monitoring Zones 审中-公开
标题翻译：监测区域的方法和装置
公开(公告)号：US20120123563A1
公开(公告)日：2012-05-17
申请号：US13298416
申请日：2011-11-17
申请人： John Drinkard
发明人： John Drinkard
IPC分类号： G05B11/01
CPC分类号： H04N7/181 , F16P3/142 , F16P3/144 , G08B13/19641 , G08B13/19652 , G08B13/1968 , H04N7/185
摘要： The present invention comprises an apparatus and method for monitoring a zone, which is a contiguous or non-contiguous, two-dimensional (2D) area or three-dimensional (3D) volume. Among its several advantages, the apparatus includes a plurality of sensors that monitor portions of the zone and report intrusion status to a control unit that provides monitoring boundary information to each of the sensors based on user input and further “maps” or otherwise associates each sensor to control unit outputs in accordance with user-defined behaviors. Still further, as a meaningful aid for configuring monitoring boundaries used by the sensors for objection intrusion detection, in one or more embodiments of the apparatus and method, at least a subset of sensors use a common coordinate frame of reference, based on a common origin located within overlapping sensor fields of view.
摘要翻译：本发明包括用于监视区域的装置和方法，该区域是连续的或不连续的二维（2D）区域或三维（3D）体积。在其几个优点中，该装置包括多个传感器，其监测该区域的部分并将入侵状态报告给控制单元，该控制单元基于用户输入向每个传感器提供监控边界信息，并且进一步“映射”或以其他方式将每个传感器根据用户定义的行为控制单位输出。此外，作为用于配置传感器用于异常入侵检测的监视边界的有意义的帮助，在装置和方法的一个或多个实施例中，传感器的至少一个子集基于公共原点使用公共坐标参考系位于重叠传感器视场内。

6. 发明授权

US08018353B2 Method and apparatus for zone selection in area monitoring devices 有权
标题翻译：区域监测装置区域选择方法及装置
公开(公告)号：US08018353B2
公开(公告)日：2011-09-13
申请号：US12436959
申请日：2009-05-07
申请人： Fred Schleifer , Christopher Alan Dums , Alejandro Ruiz Sanchez , John Drinkard
发明人： Fred Schleifer , Christopher Alan Dums , Alejandro Ruiz Sanchez , John Drinkard
IPC分类号： G08G1/017
CPC分类号： G01V8/20 , G05B19/4061
摘要： Zone selection logic in an area monitoring device increases the number of unique monitoring zone selections that can be selected using a limited number of discrete zone selection inputs, without compromising the safety critical operation of zone selection. The device monitors the logical state of each input in a set of individual inputs and recognizes each unique logical combination of zone selection inputs as a different zone selection. For example, each of two or more configured monitoring zones is associated with a different combinatorial zone selection pattern of asserted zone selection input signals. Correspondingly, a control circuit within the area monitoring device is configured to monitor the discrete zone selection inputs and activate a given one of the configured monitoring zones based on recognizing the associated combinatorial zone selection pattern of asserted zone selection signals.
摘要翻译：区域监控设备中的区域选择逻辑增加了使用有限数量的离散区域选择输入可以选择的唯一监控区域选择的数量，而不会影响区域选择的安全关键操作。设备监视一组单独输入中每个输入的逻辑状态，并将区域选择输入的每个唯一逻辑组合识别为不同的区域选择。例如，两个或多个配置的监视区域中的每一个与断言区域选择输入信号的不同的组合区域选择模式相关联。相应地，区域监视设备内的控制电路被配置为监视离散区域选择输入，并且基于识别所断言的区域选择信号的相关联的组合区域选择模式来激活所配置的监视区域中的给定的一个。

7. 发明授权

US06587811B2 System and method for delay line testing 有权
公开(公告)号：US06587811B2
公开(公告)日：2003-07-01
申请号：US09921396
申请日：2001-08-02
申请人： Fred Schleifer , John Drinkard , Christopher Alan Dums
发明人： Fred Schleifer , John Drinkard , Christopher Alan Dums
IPC分类号： H03K301
CPC分类号： G01R13/345 , G01R31/2882 , G01R31/3016 , H03K5/133
摘要： A circuit generates a test signal useful in verifying the actual delay values of individual delay stages in a digital delay line. In general, the cumulative delay of the delay line defines a window in time having its zero point anchored to the beginning of the delay line. Successive delay stages correspond to successive time bins within the overall time window. The test signal shifts at a known, linear rate in time with respect to a reference signal, which is used to initiate a test cycle. The reference signal synchronizes sampling of the test signal to the beginning of the time window. Samples of the test signal are taken at sample points determined by the actual time delays in the successive delay stages. The observed distribution of test signal edges across the time window may be used to determine the actual delay intervals of the delay line.

8. 发明授权

US07965384B2 Clutter rejection in active object detection systems 有权
标题翻译：主动物体检测系统中的杂波抑制
公开(公告)号：US07965384B2
公开(公告)日：2011-06-21
申请号：US12237065
申请日：2008-09-24
申请人： John Drinkard
发明人： John Drinkard
IPC分类号： G01C3/08
CPC分类号： G01S7/4812 , G01S7/4813 , G01S7/4817 , G01S7/4873 , G01S7/4876 , G01S17/42
摘要： According to a method and apparatus taught herein an active object detection system performs reliable object detection based on light pulse emissions and corresponding and time-of-flight based distance determination, while advantageously rejecting clutter. While not limiting, the method and apparatus taught herein may be particularly advantageous for safety-critical object detection applications, such as where the active object detection system, e.g., a laser scanner, monitors for objects of at least a specified size within a predetermined monitoring radius or contour.
摘要翻译：根据本文教导的方法和装置，主动对象检测系统基于光脉冲发射和相应的基于时间的距离确定执行可靠的物体检测，同时有利地排除杂波。尽管不是限制，但是本文教导的方法和装置对于安全关键的物体检测应用尤其有利，例如，诸如激光扫描仪的主动物体检测系统在预定监视中监视至少指定尺寸的物体半径或轮廓。

9. 发明申请

US20090322549A1 Method and Apparatus for Zone Selection in Area Monitoring Devices 有权
标题翻译：区域监测装置区选择方法与装置
公开(公告)号：US20090322549A1
公开(公告)日：2009-12-31
申请号：US12436959
申请日：2009-05-07
申请人： Fred Schleifer , Christopher Alan Dums , Alejandro Ruiz Sanchez , John Drinkard
发明人： Fred Schleifer , Christopher Alan Dums , Alejandro Ruiz Sanchez , John Drinkard
IPC分类号： G06F13/42
CPC分类号： G01V8/20 , G05B19/4061
摘要： Zone selection logic in an area monitoring device increases the number of unique monitoring zone selections that can be selected using a limited number of discrete zone selection inputs, without compromising the safety critical operation of zone selection. The device monitors the logical state of each input in a set of individual inputs and recognizes each unique logical combination of zone selection inputs as a different zone selection. For example, each of two or more configured monitoring zones is associated with a different combinatorial zone selection pattern of asserted zone selection input signals. Correspondingly, a control circuit within the area monitoring device is configured to monitor the discrete zone selection inputs and activate a given one of the configured monitoring zones based on recognizing the associated combinatorial zone selection pattern of asserted zone selection signals.
摘要翻译：区域监控设备中的区域选择逻辑增加了使用有限数量的离散区域选择输入可以选择的唯一监控区域选择的数量，而不会影响区域选择的安全关键操作。设备监视一组单独输入中每个输入的逻辑状态，并将区域选择输入的每个唯一逻辑组合识别为不同的区域选择。例如，两个或多个配置的监视区域中的每一个与断言区域选择输入信号的不同的组合区域选择模式相关联。相应地，区域监视设备内的控制电路被配置为监视离散区域选择输入，并且基于识别所断言的区域选择信号的相关联的组合区域选择模式来激活所配置的监视区域中的给定的一个。

10. 发明申请

US20090086189A1 Clutter Rejection in Active Object Detection Systems 有权
标题翻译：主动对象检测系统中的杂波抑制
公开(公告)号：US20090086189A1
公开(公告)日：2009-04-02
申请号：US12237065
申请日：2008-09-24
申请人： John Drinkard
发明人： John Drinkard
IPC分类号： G01C3/08
CPC分类号： G01S7/4812 , G01S7/4813 , G01S7/4817 , G01S7/4873 , G01S7/4876 , G01S17/42
摘要： According to a method and apparatus taught herein an active object detection system performs reliable object detection based on light pulse emissions and corresponding and time-of-flight based distance determination, while advantageously rejecting clutter. While not limiting, the method and apparatus taught herein may be particularly advantageous for safety-critical object detection applications, such as where the active object detection system, e.g., a laser scanner, monitors for objects of at least a specified size within a predetermined monitoring radius or contour.
摘要翻译：根据本文教导的方法和装置，主动对象检测系统基于光脉冲发射和相应的基于时间的距离确定执行可靠的物体检测，同时有利地排除杂波。尽管不是限制，但是本文教导的方法和装置对于安全关键的物体检测应用尤其有利，例如，诸如激光扫描仪的主动物体检测系统在预定监视中监视至少指定尺寸的物体半径或轮廓。

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