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    • 4. 发明授权
    • Ambient correction in rolling image capture system
    • 滚动图像捕获系统中的环境校正
    • US08681126B2
    • 2014-03-25
    • US13612420
    • 2012-09-12
    • Nigel Keam
    • Nigel Keam
    • G06F3/042
    • G06F3/0425G06F3/0383
    • Embodiments are disclosed that relate to the correction of an image acquired in a rolling image capture system for ambient light. One embodiment provides a device comprising a screen, a rolling image capture system, a local light source, and a controller. The controller is configured to operate the local light source while acquiring first and second frames of image data to integrate each field of image sensor pixels for a duration of local+ambient light and for a duration of ambient light such that a sum tlocal+ambient+tambient for the first frame is different than a sum tlocal+ambient+tambient for the second frame for each field of pixels. The controller is further configured to determine an ambient light value, and to adjust one or more pixels based upon the ambient light value.
    • 公开了涉及在用于环境光的滚动图像捕获系统中获取的图像的校正的实施例。 一个实施例提供一种包括屏幕,滚动图像捕获系统,本地光源和控制器的设备。 控制器被配置为在获取第一和第二帧图像数据的同时操作本地光源,以在局部+环境光的持续时间和环境光的持续时间内对图像传感器像素的每个场进行积分,使得总和+环境+ 对于第一帧的声音与针对每个像素场的第二帧的和tlocal + ambient + tambient不同。 控制器还被配置为确定环境光值,并且基于环境光值来调整一个或多个像素。
    • 5. 发明授权
    • Alternating light sources to reduce specular reflection
    • 交替光源减少镜面反射
    • US08212857B2
    • 2012-07-03
    • US11627861
    • 2007-01-26
    • Nigel Keam
    • Nigel Keam
    • G06F3/041
    • G03B15/02G02B27/0018G06F3/0425
    • An interactive display in which alternating illuminators are used to reduce or cancel specular reflections. The interactive display includes multiple illuminators and at least one camera placed behind one or more display layers. The interactive display uses a phase management mechanism that controls alternation of phases of the interactive display. When in the first phase, the first illuminator is controlled to dominate over the second illuminator. When in the second phase, the second illuminator is controlled to dominate over the first illuminator. A consolidated image is then formulated using a combination of the first and second images. The consolidated image has reduced or eliminated specular reflections as compared to the first and second images alone.
    • 交互式显示器,其中使用交替照明器来减少或消除镜面反射。 交互式显示器包括多个照明器和放置在一个或多个显示层之后的至少一个照相机。 交互式显示器使用相位管理机制来控制交互式显示器的相位的交替。 当在第一阶段中,第一照明器被控制为主导第二照明器。 当处于第二阶段时,第二照明器被控制为主导第一照明器。 然后使用第一和第二图像的组合来制定统一图像。 与第一和第二图像相比,整合的图像减少或消除了镜面反射。
    • 6. 发明授权
    • Optically trackable tag
    • 光学跟踪标签
    • US07913921B2
    • 2011-03-29
    • US11787308
    • 2007-04-16
    • Nigel Keam
    • Nigel Keam
    • G06K19/06
    • G06F3/0425
    • The tracking of a motion of an optically readable tag is disclosed. In one embodiment, an optically readable tag comprises a plurality of data features, one or more orientation features, and an optically readable tracking feature. The tracking feature comprises a continuous region with a minimum dimension greater than a maximum dimension of each data feature. Additionally, the data features and the orientation features are separated from the tracking feature by a border having a minimum width greater than a maximum dimension of each data feature. With this configuration, the tracking feature may be tracked even when a tag is moving too quickly for the data features to be read and tracked.
    • 公开了光学可读标签的运动的跟踪。 在一个实施例中,光学可读标签包括多个数据特征,一个或多个取向特征和光学可读跟踪特征。 跟踪特征包括具有大于每个数据特征的最大尺寸的最小尺寸的连续区域。 另外,通过具有大于每个数据特征的最大尺寸的最小宽度的边界将数据特征和定向特征与跟踪特征分离。 利用这种配置,即使标签移动太快以便数据特征被读取和跟踪,跟踪特征也可被跟踪。
    • 8. 发明申请
    • Dynamic illumination
    • 动态照明
    • US20070263999A1
    • 2007-11-15
    • US11433875
    • 2006-05-12
    • Nigel Keam
    • Nigel Keam
    • G03B15/03
    • G03B15/03
    • In one embodiment, a level of direct illumination for an imaging system is dynamically adjusted based on a level of at least one of ambient illumination or displayed illumination. A level of the at least one of ambient illumination or displayed illumination may be detected. The level of direct illumination may be altered based on the detected level of the at least one of ambient illumination or displayed illumination. Operation of a non-visible light-sensitive image sensor of the imaging system may be adjusted based on the altered level of direct illumination.
    • 在一个实施例中,基于环境照明或显示照明中的至少一个的水平动态地调整成像系统的直接照明水平。 可以检测环境照明或显示照明中的至少一个的水平。 可以基于所检测到的环境照明或显示照明中的至少一个的水平来改变直接照明的水平。 可以基于改变的直接照明水平来调整成像系统的不可见光敏图像传感器的操作。
    • 10. 发明申请
    • Optically trackable tag
    • 光学跟踪标签
    • US20080251584A1
    • 2008-10-16
    • US11787308
    • 2007-04-16
    • Nigel Keam
    • Nigel Keam
    • G06K7/10
    • G06F3/0425
    • The tracking of a motion of an optically readable tag is disclosed. In one embodiment, an optically readable tag comprises a plurality of data features, one or more orientation features, and an optically readable tracking feature. The tracking feature comprises a continuous region with a minimum dimension greater than a maximum dimension of each data feature. Additionally, the data features and the orientation features are separated from the tracking feature by a border having a minimum width greater than a maximum dimension of each data feature. With this configuration, the tracking feature may be tracked even when a tag is moving too quickly for the data features to be read and tracked.
    • 公开了光学可读标签的运动的跟踪。 在一个实施例中,光学可读标签包括多个数据特征,一个或多个取向特征和光学可读跟踪特征。 跟踪特征包括具有大于每个数据特征的最大尺寸的最小尺寸的连续区域。 另外,通过具有大于每个数据特征的最大尺寸的最小宽度的边界将数据特征和定向特征与跟踪特征分离。 利用这种配置,即使标签移动太快以便数据特征被读取和跟踪,跟踪特征也可被跟踪。