Position analyzer for vehicle drivers
    1.
    发明授权
    Position analyzer for vehicle drivers 失效
    汽车驾驶员位置分析仪

    公开(公告)号:US4625329A

    公开(公告)日:1986-11-25

    申请号:US692545

    申请日:1985-01-18

    摘要: An image analyzer for analyzing the position of a vehicle driver in a three-dimensional coordinate system. The analyzer comprises a light emitting element for emitting an infrared light the driver's face portion and an image detector arranged to receive reflected infrared light to generate an optical image of the driver's face portion. A microcomputer includes a memory for storing an electronic image corresponding to the optical image and processes the stored image to determine the position of a facial feature, such as an eye, in a three-dimensional coordinate system. Position indicating data is utilized in a driver assistance system.

    摘要翻译: 一种用于分析三维坐标系中的车辆驾驶员的位置的图像分析器。 分析仪包括用于发射驾驶员脸部的红外光的发光元件和布置成接收反射的红外光以产生驾驶员的脸部部分的光学图像的图像检测器。 微型计算机包括:存储器,用于存储与光学图像相对应的电子图像,并且处理所存储的图像以在三维坐标系中确定诸如眼睛的面部特征的位置。 在驾驶员辅助系统中使用位置指示数据。

    Fog detecting apparatus for use in vehicle
    2.
    发明授权
    Fog detecting apparatus for use in vehicle 失效
    用于车辆的雾检测装置

    公开(公告)号:US4636643A

    公开(公告)日:1987-01-13

    申请号:US634360

    申请日:1984-07-25

    摘要: In a fog detecting apparatus with optoelectronic system, comprising infrared-emitting means and infrared-receiving means, is provided means for adjusting a reference which is compared with a voltage value of a detecting signal generated according to an electrical signal produced by the infrared-receiving means in order to distinguish whether a windshield of a vehicle is in the fogging condition or not. The reference is changed according to the detecting signal which is produced when the windshield is in good condition against the fogging after a fog removing apparatus has been actuated to remove the fog attached on the windshield, so that the fogging condition is detected in accuracy independently of the contamination of the optoelectronic system or the like.

    摘要翻译: 在具有光电系统的雾化检测装置中,包括红外发射装置和红外线接收装置,提供了用于调整基准的装置,该参考值与根据由红外线接收产生的电信号产生的检测信号的电压值进行比较 是为了区分车辆的挡风玻璃是否处于起雾状态。 根据在雾化除雾装置被致动以防止附着在挡风玻璃上的雾的挡风玻璃处于良好状态时产生的检测信号而改变基准,从而,独立于以下方式检测雾化条件: 光电子系统等的污染。

    Establishing compatibility between two- and three-dimensional optical coherence tomography scans
    3.
    发明授权
    Establishing compatibility between two- and three-dimensional optical coherence tomography scans 有权
    建立二维和三维光学相干断层扫描的兼容性

    公开(公告)号:US09514513B2

    公开(公告)日:2016-12-06

    申请号:US13056510

    申请日:2009-08-06

    IPC分类号: A61B3/10 G06T3/00

    CPC分类号: G06T3/0075 A61B3/102

    摘要: Advances in optical coherence tomography (OCT) have prompted a transition from time domain OCT, providing 2D OCT images, to spectral domain OCT, which has a 3D imaging capability. Yet conventional technology offers little toward the goal of inter-device compatibility between extant 2D OCT images and newer 3D OCT images for the same or comparable subjects, as in the context of ongoing monitoring the quantitative status of a patient's eyes. The inventive methodology is particularly useful to identify the scan location of tissue in a 2D OCT image within the 3D OCT volumetric data, thereby allowing clinicians to image a patient via 3D OCT, based on available 2D OCT images, with minimal inter-device variation.

    摘要翻译: 光学相干断层扫描(OCT)的进展促使从具有3D成像能力的光谱域OCT向时域OCT提供2D OCT图像的转变。 然而,传统技术对于相同或可比较的对象的现有2D OCT图像和较新的3D OCT图像之间的设备间兼容性的目标几乎没有提供,如在持续监测患者眼睛的定量状态的情况下。 本发明的方法对于在3D OCT体积数据内识别2D OCT图像中的组织的扫描位置特别有用,从而允许临床医生基于可用的2D OCT图像以最小的装置间变化通过3D OCT对患者进行成像。

    Optical gate switch
    4.
    发明授权
    Optical gate switch 有权
    光栅开关

    公开(公告)号:US09002146B2

    公开(公告)日:2015-04-07

    申请号:US13985699

    申请日:2012-02-15

    摘要: An object of the present invention is to realize an optical gate switch of a monolithic integration type which can avoid problems of losses caused by light coupling of a phase modulation unit to a interferometer optical circuit unit, and can be minimized by integration. The optical gate switch according to the present invention includes an optical waveguide wafer in which a quantum well having a phase modulation effect which is generated by an intersubband transition is set as a core layer; a Michelson interferometer formed on the optical waveguide wafer; and a variable light intensity attenuation unit adjusting a light balance of an interferometer in one of reflection side arms of the Michelson interferometer reflection.

    摘要翻译: 本发明的目的是实现一种单片集成型的光栅开关,其可以避免相位调制单元与干涉仪光电路单元的光耦合引起的损耗问题,并且可以通过集成最小化。 根据本发明的光栅开关包括光波导晶片,其中具有通过跨带过渡产生的相位调制效应的量子阱被设置为核心层; 形成在光波导晶片上的迈克尔逊干涉仪; 以及可变光强度衰减单元,其调节迈克尔逊干涉仪反射的反射侧臂之一中的干涉仪的光平衡。

    Method and apparatus for segmenting an image in order to locate a part thereof
    6.
    发明授权
    Method and apparatus for segmenting an image in order to locate a part thereof 有权
    用于分割图像以便定位其一部分的方法和装置

    公开(公告)号:US08441481B2

    公开(公告)日:2013-05-14

    申请号:US13007449

    申请日:2011-01-14

    IPC分类号: G06T17/00

    摘要: A method is disclosed to automatically segment 3D and higher-dimensional images into two subsets without user intervention, with no topological restriction on the solution, and in such a way that the solution is an optimal in a precisely defined optimization criterion, including an exactly defined degree of smoothness. A minimum-cut algorithm is used on a graph devised so that the optimization criterion translates into the minimization of the graph cut. The minimum cut thus found is interpreted as the segmentation with desired property.

    摘要翻译: 公开了一种自动将3D和更高维度图像分割成两个子集的方法,无需用户干预,对解决方案没有拓扑限制,并且以这样的方式使解决方案在精确定义的优化标准中是最佳的,包括精确定义 光滑程度。 在设计的图上使用最小切割算法,使得优化标准转化为图形切割的最小化。 因此找到的最小切割被解释为具有期望属性的分割。

    NORMALIZATION OF RETINAL NERVE FIBER LAYER THICKNESS MEASUREMENTS MADE BY TIME DOMAIN-OPTICAL COHERENCE TOMOGRAPHY
    7.
    发明申请
    NORMALIZATION OF RETINAL NERVE FIBER LAYER THICKNESS MEASUREMENTS MADE BY TIME DOMAIN-OPTICAL COHERENCE TOMOGRAPHY 有权
    通过时域光学相干测量法,对神经纤维层厚度测量进行正规化

    公开(公告)号:US20130077046A1

    公开(公告)日:2013-03-28

    申请号:US13510732

    申请日:2010-11-19

    IPC分类号: A61B3/10

    摘要: A scan location matching (SLM) method identifies conventional time domain optical coherence tomography (TD-OCT) circle scan locations within three-dimensional spectral domain OCT scan volumes. A technique uses both the SLM algorithm and a mathematical retinal nerve fiber bundle distribution (RNFBD) model, which is a simplified version of the anatomical retinal axon bundle distribution pattern, to normalize TD-OCT thickness measurements for the retinal nerve fiber layer (RNFL) of an off-centered TD-OCT circle scan to a virtual location, centered on the optic nerve head. The RNFBD model eliminates scan-to-scan RNFL thickness measurement variation caused by manual placement of TD-OCT circle scan.

    摘要翻译: 扫描位置匹配(SLM)方法识别三维频域OCT扫描体积内的常规时域光学相干断层扫描(TD-OCT)圆扫描位置。 一种技术使用SLM算法和数字视网膜神经纤维束分布(RNFBD)模型,其是解剖视网膜轴突束分布模式的简化版本,以对视网膜神经纤维层(RNFL)的TD-OCT厚度测量进行归一化, 的偏心的TD-OCT圆周扫描到以视神经头为中心的虚拟位置。 RNFBD模型消除了由手动放置TD-OCT圆形扫描引起的扫描到扫描RNFL厚度测量变化。