公开(公告)号：US09557574B2

公开(公告)日：2017-01-31

申请号：US12796472

申请日：2010-06-08

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： G02B27/28 ,  G01C3/08 ,  G06F3/03 ,  G02B27/48

CPC分类号： G02B27/286 ,  G01C3/08 ,  G02B27/48 ,  G06F3/0304

摘要： A depth image capture device uses a circular polarization structure positioned at the output of an illumination radiation source, such as a diode laser. A linear polarization element receives the collimated illumination radiation and provides polarized radiation to a quarter wave plate. Radiation exits the quarter wave plate as circularly polarized radiation and is provided to a diffractive optical element outputting a pattern to illuminate a target. A detector receives a reflection of the output pattern from the target.

摘要翻译： 深度图像捕获装置使用位于诸如二极管激光器的照明辐射源的输出处的圆偏振结构。 线性偏振元件接收准直照明辐射并向四分之一波片提供偏振辐射。 辐射作为圆偏振辐射离开四分之一波片，并被提供给衍射光学元件，该衍射光学元件输出用于照射目标的图案。 检测器从目标接收输出图案的反射。

公开(公告)号：US08558873B2

公开(公告)日：2013-10-15

申请号：US12816985

申请日：2010-06-16

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： H04N15/00 ,  H04N13/02

CPC分类号： G01B11/2513 ,  G01S17/46 ,  G01S17/89 ,  G06F3/017 ,  G06F3/0325

摘要： A 3-D depth camera system, such as in a motion capture system, tracks an object such as a human in a field of view using an illuminator, where the field of view is illuminated using multiple diffracted beams. An image sensing component obtains an image of the object using a phase mask according to a double-helix point spread function, and determines a depth of each portion of the image based on a relative rotation of dots of light of the double-helix point spread function. In another aspect, dual image sensors are used to obtain a reference image and a phase-encoded image. A relative rotation of features in the images can be correlated with a depth. Depth information can be obtained using an optical transfer function of a point spread function of the reference image.

摘要翻译： 诸如在运动捕捉系统中的3-D深度相机系统使用照明器在视野中跟踪诸如人的物体，其中使用多个衍射光束照射视场。 图像感测组件根据双螺旋点扩展函数使用相位掩模获得对象的图像，并且基于双螺旋点展开的光点的相对旋转来确定图像的每个部分的深度 功能。 在另一方面，使用双重图像传感器来获得参考图像和相位编码图像。 图像中特征的相对旋转可以与深度相关联。 可以使用参考图像的点扩散函数的光学传递函数来获得深度信息。

公开(公告)号：US20120300040A1

公开(公告)日：2012-11-29

申请号：US13115705

申请日：2011-05-25

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： H04N13/02 ,  G03B41/00 ,  G03B15/02

CPC分类号： H04N13/271 ,  G03B2215/0567 ,  H04N13/254

摘要： A three-dimensional imaging system to reduce detected ambient light comprises a wavelength stabilized laser diode to project imaging light onto a scene, an optical bandpass filter, and a camera to receive imaging light reflected from the scene and through the optical bandpass filter, the camera configured to use the received imaging light for generating a depth map of the scene.

公开(公告)号：US20120026085A1

公开(公告)日：2012-02-02

申请号：US13267458

申请日：2011-10-06

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： G06F3/01

CPC分类号： G06K9/2036 ,  A63F2300/1087 ,  A63F2300/8029 ,  G06K9/2027 ,  G06T5/007 ,  G06T2207/10028 ,  G06T2207/20224

摘要： Embodiments related to the enhancement of contrast in an image pattern in a structured light depth sensor are disclosed. For example, one disclosed embodiment provides, in a structured light depth sensor system comprising a structured light depth sensor, a method comprising projecting a light pattern onto an object, detecting via an image sensor an image of the light pattern as reflected from the object, increasing a contrast of the light pattern relative to ambient light present in the image of the light pattern as reflected from the object to form a contrast-enhanced image of the light pattern as reflected from the object, and based upon a motion of the object as detected via the contrast-enhanced image of the light pattern, controlling an application that is providing output to a display.

摘要翻译： 公开了与结构化光深度传感器中的图像图像中的对比度增强有关的实施例。 例如，一个公开的实施例在包括结构化光深度传感器的结构光深度传感器系统中提供了一种方法，包括将光图案投射到物体上，经由图像传感器检测从物体反射的光图案的图像， 增加光图案相对于从物体反射的光图案的图像中存在的环境光的对比度，以形成从物体反射的光图案的对比度增强图像，并且基于物体的运动 通过光图案的对比度增强图像检测，控制向显示器提供输出的应用。

公开(公告)号：US07763841B1

公开(公告)日：2010-07-27

申请号：US12472941

申请日：2009-05-27

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： G02B27/42

CPC分类号： G02B27/42 ,  B29D11/0073 ,  B29D11/0074 ,  G02B13/008 ,  G02B13/16 ,  G02B27/425 ,  G02B27/4272

摘要： Embodiments are disclosed herein related to the construction of optical elements for structured light depth sensor systems. One disclosed embodiment provides a depth sensing system with an optical component comprising a first substrate surface, a first optical element formed in a polymer layer disposed on the first substrate surface, a second substrate surface, and a second optical element formed in a polymer layer disposed on the second substrate surface, wherein the second optical element is optically aligned with the first optical element. The depth sensing further comprises a projector configured to provide light to form a pattern to illuminate a target, and a sensor to acquire an image of the pattern.

摘要翻译： 本文公开的实施例涉及用于结构化光深度传感器系统的光学元件的构造。 一个公开的实施例提供了一种深度感测系统，其具有光学部件，该光学部件包括第一基板表面，形成在设置在第一基板表面上的聚合物层中的第一光学元件，第二基板表面和形成在聚合物层中的第二光学元件 在第二基板表面上，其中第二光学元件与第一光学元件光学对准。 深度感测还包括投影仪，其被配置为提供光以形成用于照射目标的图案，以及用于获取图案的图像的传感器。

公开(公告)号：US20100066929A1

公开(公告)日：2010-03-18

申请号：US12556694

申请日：2009-09-10

申请人： David M. Shemo ,  Scott McEldowney

发明人： David M. Shemo ,  Scott McEldowney

IPC分类号： G02F1/1335 ,  G03F7/20

CPC分类号： G02B5/3083

摘要： A micro-array of optical vortex retarders is provided by forming an alignment layer having a plurality of discrete alignment patches with different orientations. A layer of birefringent material, including one of a liquid crystal and a liquid crystal polymer precursor material, is provided adjacent to the alignment layer. The aligning orientation and position of each discrete alignment patch in the plurality of discrete alignment patches is selected to induce the layer of birefringent material to form at least one optical vortex retarder adjacent to a substantially non-oriented region of the alignment layer.

摘要翻译： 通过形成具有不同取向的多个离散对准贴片的取向层来提供光学涡旋延迟器的微阵列。 在取向层附近设置包括液晶和液晶聚合物前体材料之一的双折射材料层。 选择多个离散对准贴片中的每个离散对准贴片的对准方向和位置以诱导双折射材料层，以形成与取向层的基本上非取向区域相邻的至少一个光学涡旋延迟器。

公开(公告)号：US20150185475A1

公开(公告)日：2015-07-02

申请号：US14140987

申请日：2013-12-26

申请人： Pasi Saarikko ,  Xinye Lou ,  Scott McEldowney ,  Steven Robbins ,  Tapani Levola

发明人： Pasi Saarikko ,  Xinye Lou ,  Scott McEldowney ,  Steven Robbins ,  Tapani Levola

IPC分类号： G06K9/00 ,  G02B6/34 ,  G06F3/01 ,  G02B27/01 ,  G02B6/36

CPC分类号： G02B27/0093 ,  A61B3/113 ,  G02B6/02085 ,  G02B6/34 ,  G02B27/0172 ,  G02B2027/0107 ,  G02B2027/0138 ,  G02B2027/0178 ,  G06F3/013 ,  H04N13/383

摘要： A transparent waveguide for use in eye tracking includes an input-coupler and an output-coupler. The input-coupler comprises a plurality of curved grating lines having a radially varying pitch. When positioned in front of an eye illuminated with infrared light, infrared light beams reflected from the eye and incident on the input-coupler enter the waveguide at the input-coupler, propagate through the waveguide by way of total internal reflections, and exit the waveguide proximate the output-coupler. The radially varying pitch of the curved grating lines of the input-coupler provides angular encoding of infrared light incident on the input-coupler, and more specifically, causes different beams of infrared light incident on respective different horizontal and vertical positions of the input-coupler to propagate through the waveguide at respective different angles of reflection and exit the waveguide at respective different angles of incidence relative to a surface of the waveguide through which infrared light beams exit.

摘要翻译： 用于眼睛跟踪的透明波导包括输入耦合器和输出耦合器。 输入耦合器包括具有径向变化间距的多个弯曲光栅线。 当放置在用红外线照射的眼睛前方时，从眼睛反射并入射到输入耦合器上的红外光束进入输入耦合器处的波导，通过全内反射传播通过波导，并且离开波导 靠近输出耦合器。 输入耦合器的弯曲光栅线的径向变化的间距对入射到输入耦合器上的红外光的角度编码提供了角度编码，更具体地说，使不同的红外光束入射在输入耦合器的不同的水平和垂直位置上 以相应的不同的反射角传播通过波导并以相应的入射角相对于波导的表面离开波导，红外光束通过该表面离开。

公开(公告)号：US08670029B2

公开(公告)日：2014-03-11

申请号：US12816993

申请日：2010-06-16

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： G06F3/042 ,  G06F3/048 ,  H04N7/18

CPC分类号： G03B15/03 ,  G02B5/1895 ,  G03B35/00 ,  G06F3/011 ,  H04N13/254

摘要： A depth camera illuminator with a superluminescent light-emitting diode (SLED) in a motion tracking system. One or more SLEDs have a sufficient power, such as 75-200 milliwatts, to extend in a field of view in an area such as a room in a home. To correct for chromatic aberration which would otherwise exist due to the wider range of wavelengths which are emitted by an SLED compared to a laser, an achromatic diffractive optical element is used to disperse the light over the field of view. The achromatic diffractive optical element can have a stepped multi-level profile with three or more levels, or a continuous profile. Based on a tracked movement of a human target, an input is provided to an application in a motion tracking system, and the application performs a corresponding action such as updating a position of an on-screen avatar.

摘要翻译： 在运动跟踪系统中具有超发光发光二极管（SLED）的深度相机照明器。 一个或多个SLED具有足够的功率，例如75-200毫瓦，以在诸如家庭中的房间的区域中延伸。 为了校正由于与激光相比由SLED发射的较宽波长范围而否则存在的色差，使用消色差衍射光学元件将光分散在视野范围内。 无色衍射光学元件可以具有三级或更多级别或连续轮廓的阶梯式多级轮廓。 基于人类目标的跟踪移动，向运动跟踪系统中的应用提供输入，并且应用执行相应的动作，例如更新屏幕上的头像的位置。

公开(公告)号：US08264536B2

公开(公告)日：2012-09-11

申请号：US12547419

申请日：2009-08-25

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： H04N7/14

CPC分类号： G06K9/2036 ,  G06T7/521

摘要： A depth-sensitive imager for imaging a scene in three dimensions. The depth-sensitive imager comprises a light source configured to project a polarized illumination onto a surface of the scene, and a detector configured to capture an image of the scene by detecting light from the scene, in which image a polarization state of the light is encoded. The detected light includes a portion of the polarized illumination reflected from the surface. The depth-sensitive imager further comprises an analyzer configured to generate output responsive to a distance between the light source and the surface based on the image.

摘要翻译： 一种深度敏感的成像器，用于对三维场景进行成像。 深度敏感的成像器包括被配置为将偏振照明投影到场景的表面上的光源，以及被配置为通过检测来自场景的光来捕获场景的图像的检测器，在该图像中，光的偏振状态为 编码。 检测到的光包括从表面反射的偏振照明的一部分。 深度敏感成像器还包括分析器，其被配置为基于图像生成响应于光源和表面之间的距离的输出。

公开(公告)号：US20120051588A1

公开(公告)日：2012-03-01

申请号：US12643114

申请日：2009-12-21

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： G06K9/00 ,  H04N13/02

CPC分类号： G03B17/54 ,  G03B21/14 ,  G03B21/2033 ,  G03B35/00 ,  G03B35/08 ,  G06F3/005 ,  G06F3/011 ,  G06F3/017

摘要： A projector is disclosed for use in a 3-D imaging device. The projector includes a light source formed of a vertical-cavity surface-emitting laser, or VCSEL array. The VCSEL array provides a light source for illuminating a capture area. Light from the VCSEL array is reflected off of objects in the capture area and received within a sensing device such as a 3-D camera. The projector may further include a collimating lens array for focusing the light emitted from each VCSEL in the array, as well as a DOE for patterning the light from the collimating lens array to enable the sensing device to generate a 3-D image of the objects in the capture area.

摘要翻译： 公开了用于3-D成像装置的投影仪。 该投影仪包括由垂直腔表面发射激光器或VCSEL阵列形成的光源。 VCSEL阵列提供用于照亮捕获区域的光源。 来自VCSEL阵列的光从捕获区域中的物体反射并被接收在诸如3-D相机的感测装置内。 投影仪还可以包括用于将从阵列中的每个VCSEL发射的光聚焦的准直透镜阵列，以及用于对来自准直透镜阵列的光进行图案化的DOE，以使感测装置能够产生物体的3-D图像 在捕获区域。