公开(公告)号：EP2898670B1

公开(公告)日：2018-10-10

申请号：EP13767228.3

申请日：2013-09-17

申请人： Flir Systems, Inc.

发明人： HÖGASTEN, Nicholas ,  INGERHED, Malin ,  NUSSMEIER, Mark ,  KURTH, Eric A. ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin ,  BOULANGER, Pierre ,  SHARP, Barbara

IPC分类号： H04N5/33 ,  H04N5/365 ,  G01J5/00 ,  G01J5/20 ,  G06T5/00 ,  G06T5/50

CPC分类号： H04N5/33 ,  G01J2005/0048 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20182 ,  H04N5/3656 ,  H04N5/3658

摘要： Methods and systems are provided to reduce noise in thermal images. In one example, a method includes receiving an image frame comprising a plurality of pixels arranged in a plurality of rows and columns. The pixels comprise thermal image data associated with a scene and noise introduced by an infrared imaging device. The image frame may be processed to determine a plurality of column correction terms, each associated with a corresponding one of the columns and determined based on relative relationships between the pixels of the corresponding column and the pixels of a neighborhood of columns. In another example, the image frame may be processed to determine a plurality of non-uniformity correction terms, each associated with a corresponding one of the pixels and determined based on relative relationships between the corresponding one of the pixels and associated neighborhood pixels within a selected distance.

公开(公告)号：EP2764685A1

公开(公告)日：2014-08-13

申请号：EP12751646.6

申请日：2012-07-31

申请人： Flir Systems, Inc.

发明人： BOULANGER, Pierre ,  ELMFORS, Per ,  HÖGASTEN, Nicholas ,  HOELTER, Theodore, R. ,  STRANDEMAR, Katrin ,  SHARP, Barbara ,  KURTH, Eric, A.

IPC分类号： H04N5/33

CPC分类号： H04N5/33

摘要： Various techniques are provided for using one or more shielded (e.g., blinded, blocked, and/or obscured) infrared sensors of a thermal imaging device. In one example, a method includes capturing a signal from a shielded infrared sensor that is substantially blocked from receiving infrared radiation from a scene. The method also includes capturing a signal from an unshielded infrared sensor configured to receive the infrared radiation from the scene. The method also includes determining an average thermographic offset reference for the shielded and unshielded infrared sensors based on the captured signal of the shielded infrared sensor. The method also includes determining an absolute radiometric value for the scene based on the average thermographic offset reference and the captured signal of the unshielded infrared sensor.

摘要翻译： 提供了各种用于使用热成像装置的一个或多个屏蔽（例如，盲，阻挡和/或模糊）红外传感器的技术。 在一个示例中，一种方法包括捕获来自屏蔽红外传感器的信号，该屏蔽红外传感器基本上被阻挡以免从场景接收红外辐射。 该方法还包括捕获来自被配置为从场景接收红外辐射的非屏蔽红外传感器的信号。 该方法还包括基于屏蔽红外传感器的捕获信号来确定屏蔽和非屏蔽红外传感器的平均热成像偏移参考。 该方法还包括基于平均热成像偏移参考和非屏蔽红外传感器的捕获信号来确定场景的绝对辐射度值。

公开(公告)号：EP2719166A2

公开(公告)日：2014-04-16

申请号：EP12727764.8

申请日：2012-06-08

申请人： Flir Systems, Inc.

发明人： DART, David W. ,  SIEH, Weilming ,  HÖGASTEN, Nicholas ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin ,  BOULANGER, Pierre ,  SHARP, Barbara ,  KURTH, Eric A.

IPC分类号： H04N5/33

CPC分类号： H04N1/2137 ,  G06T1/20 ,  H04N5/33

摘要： Techniques are provided to implement line based processing of thermal images and a flexible memory system. In one example, individual lines of a thermal image frame may be provided to an image processing pipeline. Image processing operations may be performed on the individual lines in stages of the image processing pipeline. A memory system may be used to buffer the individual lines in the pipeline stages. In another example, a memory system may be used to send and receive data between various components without relying on a single shared bus. Data transfers may be performed between different components and different memories of the memory system using a switch fabric to route data over different buses. In another example, a memory system may support data transfers using different clocks of various components, without requiring the components and the memory system to all be synchronized to the same clock source.

摘要翻译： 提供了技术来实现热图像的基于行的处理和灵活的存储器系统。 在一个示例中，热图像帧的各行可以被提供给图像处理流水线。 图像处理操作可以在图像处理流水线的各个阶段执行。 可以使用存储器系统来缓冲流水线级中的各个线路。 在另一示例中，可以使用存储器系统来在各个组件之间发送和接收数据，而不依赖于单个共享总线。 数据传输可以在存储器系统的不同组件和不同存储器之间使用交换结构在不同总线上路由数据。 在另一示例中，存储器系统可以支持使用各种组件的不同时钟的数据传输，而不需要将组件和存储器系统全部同步到相同的时钟源。

公开(公告)号：EP2764686B1

公开(公告)日：2019-10-02

申请号：EP12780954.9

申请日：2012-09-28

申请人： Flir Systems, Inc.

发明人： TEICH, Andrew, C. ,  HÖGASTEN, Nicholas ,  HOELTER, Theodore, R. ,  STRANDEMAR, Katrin

IPC分类号： H04N5/33 ,  H04N7/18 ,  G08B13/196 ,  G08B13/19

公开(公告)号：EP2898669A1

公开(公告)日：2015-07-29

申请号：EP13766872.9

申请日：2013-09-17

申请人： Flir Systems, Inc.

发明人： HÖGASTEN, Nicholas ,  INGERHED, Malin ,  NUSSMEIER,Mark ,  KURTH, Eric A. ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin ,  BOULANGER, Pierre ,  SHARP, Barbara

IPC分类号： H04N5/33 ,  H04N5/365

CPC分类号： H04N5/33 ,  G01J2005/0048 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20182 ,  H04N5/3656 ,  H04N5/3658

摘要： Methods and systems are provided to reduce noise in thermal images. In one example, a method includes receiving an image frame comprising a plurality of pixels arranged in a plurality of rows and columns. The pixels comprise thermal image data associated with a scene and noise introduced by an infrared imaging device. The image frame may be processed to determine a plurality of column correction terms, each associated with a corresponding one of the columns and determined based on relative relationships between the pixels of the corresponding column and the pixels of a neighborhood of columns. In another example, the image frame may be processed to determine a plurality of non-uniformity correction terms, each associated with a corresponding one of the pixels and determined based on relative relationships between the corresponding one of the pixels and associated neighborhood pixels within a selected distance.

公开(公告)号：EP2829056A2

公开(公告)日：2015-01-28

申请号：EP13770520.8

申请日：2013-03-14

申请人： Flir Systems, Inc.

发明人： TERRE, William A. ,  TEICH, Andrew C. ,  LEPORE,Giovanni ,  HÖGASTEN, Nicholas ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin

IPC分类号： H04N5/33 ,  H04N7/18 ,  G06T1/20

CPC分类号： H04N5/33 ,  G08B21/12 ,  H04N7/18

摘要： Various techniques are disclosed for providing a wearable apparatus having an integrated infrared imaging module. In one example, a wearable apparatus implemented as a self-contained breathing apparatus (SCBA) may include a shield to protect a user from an external environment, one or more infrared imaging modules, a projector, a processor, and a communication module for projecting a user-viewable thermal image onto a surface of the shield. Such infrared imaging modules may be positioned internal to the SCBA for protection from a hazardous external environment. In another example, a wearable apparatus implemented as a welding mask may include one or more infrared imaging modules, a projector, a processor, and a communication module, so as to project a user-viewable thermal image onto a surface of a shield of the welding mask, while at the same time protecting these components and the welder's face from a harsh welding environment.

公开(公告)号：EP2719165A2

公开(公告)日：2014-04-16

申请号：EP12727208.6

申请日：2012-06-08

申请人： Flir Systems, Inc.

发明人： HÖGASTEN, Nicholas ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin ,  BOULANGER, Pierre ,  SHARP, Barbara ,  KURTH, Eric A.

IPC分类号： H04N5/33

CPC分类号： H04N5/33

摘要： Various techniques are disclosed for performing non-uniformity correction (NUC) for infrared imaging devices. Intentionally blurred image frames may be obtained and processed to correct for FPN (e.g., random spatially uncorrelated FPN in one embodiment) associated with infrared sensors of the infrared imaging device. Intentionally blurred image frames may be used to distinguish between FPN associated with the infrared sensors and desired scene information. Advantageously, such techniques may be implemented without requiring the use of a shutter to perform flat field correction for the infrared imaging device.

摘要翻译： 公开了用于执行红外成像装置的非均匀性校正（NUC）的各种技术。 可以获得和处理故意模糊的图像帧，以校正与红外成像设备的红外传感器相关联的FPN（例如，在一个实施例中，随机空间不相关的FPN）。 可以使用故意模糊的图像帧来区分与红外传感器相关联的FPN和期望的场景信息。 有利地，可以实现这种技术而不需要使用快门来对红外成像装置执行平场校正。

公开(公告)号：EP2936799B1

公开(公告)日：2018-10-17

申请号：EP13821359.0

申请日：2013-12-21

申请人： Flir Systems, Inc.

发明人： HÖGASTEN, Nicholas ,  DUMPERT, Dwight ,  HOELTER, Theodore R. ,  SCOTT, Jeffrey S. ,  STRANDEMAR, Katrin ,  NUSSMEIER, Mark ,  KURTH, Eric A. ,  BOULANGER, Pierre ,  SHARP, Barbara

IPC分类号： H04N5/33 ,  H04N5/232 ,  H04N5/225 ,  H04N5/365

CPC分类号： H04N5/23229 ,  H04N5/2258 ,  H04N5/332 ,  H04N5/3651

摘要： An imaging system may include visible spectrum imaging modules, infrared imaging modules, illumination modules, and other modules to interface with a user and/or a monitoring system. Visible spectrum imaging modules and infrared imaging modules may be positioned in proximity to a scene that will be monitored while visible spectrum-only images of the scene are either not available or less desirable than infrared images of the scene. Imaging modules may be configured to capture images of the scene at different times. Image analytics and processing may be used to generate combined images with infrared imaging features and increased detail and contrast. Selectable aspects of non-uniformity correction processing, true color processing, and high contrast processing, may be performed on the captured images. Control signals based on the combined images may be presented to a user and/or a monitoring system.

公开(公告)号：EP2719167B1

公开(公告)日：2018-08-08

申请号：EP12737632.5

申请日：2012-06-08

申请人： Flir Systems, Inc.

发明人： NUSSMEIER, Mark ,  KURTH, Eric A. ,  HÖGASTEN, Nicholas ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin ,  BOULANGER, Pierre ,  SHARP, Barbara

IPC分类号： H04N5/33

CPC分类号： H04N5/33 ,  H04M1/725 ,  H04M2250/52 ,  H04N5/2252 ,  H04N5/2257 ,  H04N5/357 ,  H04N5/378

摘要： Various techniques are provided for implementing an infrared imaging system. In one example, a system includes a focal plane array (FPA). The FPA includes an array of infrared sensors adapted to image a scene. The FPA also includes a bias circuit adapted to provide a bias voltage to the infrared sensors. The bias voltage is selected from a range of approximately 0.2 volts to approximately 0.7 volts. The FPA also includes a read out integrated circuit (ROIC) adapted to provide signals from the infrared sensors corresponding to captured image frames. Other implementations are also provided.

公开(公告)号：EP2932529A1

公开(公告)日：2015-10-21

申请号：EP13814375.5

申请日：2013-12-12

申请人： Flir Systems, Inc.

发明人： SIMOLON, Brian ,  KURTH, Eric A. ,  NUSSMEIER, Mark ,  HÖGASTEN, Nicholas ,  HOELTER, Theodore R. ,  STRANDEMAR, Katrin ,  BOULANGER, Pierre ,  SHARP, Barbara

IPC分类号： H01L27/146 ,  G01J5/20

CPC分类号： H04N5/3656 ,  G01J5/20 ,  G01J2005/0077 ,  G01J2005/068 ,  H01L27/14634 ,  H01L27/1465 ,  H01L27/1469 ,  H04N5/2257 ,  H04N5/32 ,  H04N5/378

摘要： Various techniques are provided for implementing a segmented focal plane array (FPA) of infrared sensors. In one example, a system includes a segmented FPA. The segmented FPA includes a top die having an array of infrared sensors (e.g., bolometers). The top die may also include a portion of a read-out integrated circuit (ROIC). The segmented FPA also includes a bottom die having at least a portion of the ROIC. The top and the bottom dies are electrically coupled via inter-die connections. Advantageously, the segmented FPA may be fabricated with a higher yield and a smaller footprint compared with conventional FPA architectures. Moreover, the segmented FPA may be fabricated using different semiconductor processes for each die.