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。

公开(公告)号：US07715084B2

公开(公告)日：2010-05-11

申请号：US12424168

申请日：2009-04-15

申请人： Kim L. Tan ,  David M. Shemo ,  Scott McEldowney

发明人： Kim L. Tan ,  David M. Shemo ,  Scott McEldowney

IPC分类号： G02F1/01 ,  H01S3/10

CPC分类号： G02B27/48 ,  G02B27/286 ,  H04N9/3126 ,  H04N9/3161 ,  Y10S359/90

摘要： A method and apparatus for reducing speckle in a laser illumination system uses a despeckle device including an optical retarder providing an odd integer multiple of substantially half-wave retardation for light emitted from a coherent laser in the laser illumination system. The near half-wave optical retarder has a substantially constant retardance and a spatially varied slow axis. The spatially varied slow axis imposes a phase mask on the beam of light, which provides sub-resolution optical phase modulation to a resolution spot on the detector. The near half-wave optical retarder is actuated mechanically or electrically to vary the sub-resolution optical phase modulation within an integration time of the detector.

摘要翻译： 一种用于减少激光照射系统中的散斑的方法和装置，使用了一种去斑装置，它包括一个光学延迟器，为激光照射系统中的相干激光发出的光提供了实质上半波延迟的奇整数倍。 近半波延迟器具有基本恒定的延迟和空间上变化的慢轴。 空间变化的慢轴在光束上施加相位掩模，其向检测器上的分辨率点提供亚分辨率的光相位调制。 靠近半波长的光学延迟器被机械或电气地驱动以在检测器的积分时间内改变子分辨率的光学相位调制。

公开(公告)号：US20140375790A1

公开(公告)日：2014-12-25

申请号：US13927025

申请日：2013-06-25

申请人： Steve Robbins ,  Scott McEldowney ,  Xinye Lou ,  David Nister ,  Drew Steedly ,  Quentin Simon Charles Miller ,  David D. Bohn ,  James Peele Terrell, JR. ,  Andrew C. Goris ,  Nathan Ackerman

发明人： Steve Robbins ,  Scott McEldowney ,  Xinye Lou ,  David Nister ,  Drew Steedly ,  Quentin Simon Charles Miller ,  David D. Bohn ,  James Peele Terrell, JR. ,  Andrew C. Goris ,  Nathan Ackerman

IPC分类号： G02B27/01 ,  G06F3/01 ,  G02B27/00

CPC分类号： G02B27/0172 ,  G02B5/04 ,  G02B27/0093 ,  G02B27/017 ,  G02B2027/0138 ,  G02B2027/0187

摘要： Embodiments are disclosed for a see-through head-mounted display system. In one embodiment, the see-through head-mounted display system comprises a freeform prism, and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also comprise an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.

公开(公告)号：US08654152B2

公开(公告)日：2014-02-18

申请号：US12819414

申请日：2010-06-21

申请人： Scott McEldowney ,  John A. Tardif ,  John Clavin ,  David Cohen ,  Giora Yahav

发明人： Scott McEldowney ,  John A. Tardif ,  John Clavin ,  David Cohen ,  Giora Yahav

IPC分类号： G09G5/00

CPC分类号： G06F3/017 ,  G09G2340/045 ,  G09G2354/00

摘要： A system and method are disclosed for selectively focusing on certain areas of interest within an imaged scene to gain more image detail within those areas. In general, the present system identifies areas of interest from received image data, which may for example be detected areas of movement within the scene. The system then focuses on those areas by providing more detail in the area of interest. This may be accomplished by a number of methods, including zooming in on the image, increasing pixel density of the image and increasing the amount of light incident on the object in the image.

摘要翻译： 公开了一种系统和方法，用于选择性地聚焦在成像场景内的某些感兴趣区域，以在这些区域内获得更多的图像细节。 通常，本系统从接收的图像数据中识别感兴趣的区域，其可以例如是场景内的检测到的移动区域。 然后系统通过在感兴趣的领域提供更多细节来关注这些领域。 这可以通过多种方法来实现，包括放大图像，增加图像的像素密度和增加入射到图像上物体的光量。

公开(公告)号：US08330822B2

公开(公告)日：2012-12-11

申请号：US12797410

申请日：2010-06-09

申请人： Scott McEldowney ,  Prafulla Masalkar ,  Yun Fang

发明人： Scott McEldowney ,  Prafulla Masalkar ,  Yun Fang

IPC分类号： H04N9/04

CPC分类号： A63F13/213 ,  A63F2300/1087

摘要： Various embodiments are disclosed for setting a depth camera light source operating temperature in a thermal tuning mode executed during a depth camera manufacturing process. One embodiment of a method includes illuminating a target with light from a light source at a plurality of light source temperatures; for each light source temperature, sensing an intensity of reflected light received at a light sensor through a light filter positioned intermediate the target and the light sensor; approximating a frequency response relationship between a light filter cutoff frequency and a light source emission wavelength based on a comparison of the sensed intensities and stored reference data; generating a temperature set point so that the light source emission wavelength does not overlap the light filter cutoff frequency by more than a predetermined overlap threshold; and programming a temperature controller to control the light source to the temperature set point during depth camera operation.

摘要翻译： 公开了用于在深度相机制造过程中执行的热调谐模式中设置深度相机光源操作温度的各种实施例。 一种方法的一个实施例包括在多个光源温度下用来自光源的光照射目标物; 对于每个光源温度，感测通过位于目标和光传感器之间的光过滤器在光传感器处接收的反射光的强度; 基于感测强度和存储的参考数据的比较近似滤光器截止频率和光源发射波长之间的频率响应关系; 产生温度设定点，使得光源发射波长不与滤光器截止频率重叠大于预定重叠阈值; 并在深度相机操作期间编程温度控制器以将光源控制到温度设定点。

公开(公告)号：US20120300024A1

公开(公告)日：2012-11-29

申请号：US13115694

申请日：2011-05-25

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： H04N13/00

CPC分类号： G06F3/011 ,  H04N13/254 ,  H04N13/271

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.

摘要翻译： 用于减少检测到的环境光的三维成像系统包括将成像光投射到场景上的波长稳定的激光二极管，光学带通滤光器和照相机，以接收从场景反射的成像光并通过光学带通滤光器，照相机 被配置为使用所接收的成像光来生成场景的深度图。

公开(公告)号：US20120104225A1

公开(公告)日：2012-05-03

申请号：US12938254

申请日：2010-11-02

申请人： Scott McEldowney ,  Dawson Yee

发明人： Scott McEldowney ,  Dawson Yee

IPC分类号： G01J1/32 ,  H01J5/16

CPC分类号： G01B11/14 ,  G01J1/0228 ,  G01J1/32

摘要： Technology for detecting a change in a configuration position of one or more elements in an illumination system is described. A light source generates an illumination signal, and an element of the system directs a portion of the light of the signal back to a light detector. In one example, the portion of light is reflected back to the light detector. By monitoring an output signal of the light detector based on the directed light, control circuitry can detect that a position of an element of the system has changed. In one example, an off-the-shelf integrated circuit laser diode package including a monitor photodiode can be used with a reflective element. In one example, the reflective element is a tilted optical element. Changes can be detected in the configuration of one or more optical elements of the illumination system which are outside the laser diode package.

摘要翻译： 描述了用于检测照明系统中的一个或多个元件的配置位置变化的技术。 光源产生照明信号，并且系统的元件将信号的一部分光引导回到光检测器。 在一个示例中，光的一部分被反射回到光检测器。 通过基于有向光监视光检测器的输出信号，控制电路可以检测到系统的元件的位置已经改变。 在一个示例中，包括监视器光电二极管的现成的集成电路激光二极管封装可以与反射元件一起使用。 在一个示例中，反射元件是倾斜的光学元件。 可以在激光二极管封装外的照明系统的一个或多个光学元件的配置中检测到变化。

公开(公告)号：US20110310125A1

公开(公告)日：2011-12-22

申请号：US12819414

申请日：2010-06-21

申请人： Scott McEldowney ,  John A. Tardif ,  John Clavin ,  David Cohen ,  Giora Yahav

发明人： Scott McEldowney ,  John A. Tardif ,  John Clavin ,  David Cohen ,  Giora Yahav

IPC分类号： G09G5/00 ,  G06F3/033

CPC分类号： G06F3/017 ,  G09G2340/045 ,  G09G2354/00

摘要： A system and method are disclosed for selectively focusing on certain areas of interest within an imaged scene to gain more image detail within those areas. In general, the present system identifies areas of interest from received image data, which may for example be detected areas of movement within the scene. The system then focuses on those areas by providing more detail in the area of interest. This may be accomplished by a number of methods, including zooming in on the image, increasing pixel density of the image and increasing the amount of light incident on the object in the image.

摘要翻译： 公开了一种系统和方法，用于选择性地聚焦在成像场景内的某些感兴趣区域，以在这些区域内获得更多的图像细节。 通常，本系统从接收的图像数据中识别感兴趣的区域，其可以例如是场景内的检测到的移动区域。 然后系统通过在感兴趣的领域提供更多细节来关注这些领域。 这可以通过多种方法来实现，包括放大图像，增加图像的像素密度和增加入射到图像上物体的光量。

公开(公告)号：US20100304854A1

公开(公告)日：2010-12-02

申请号：US12827149

申请日：2010-06-30

申请人： Scott McEldowney

发明人： Scott McEldowney

IPC分类号： A63F13/00 ,  G06K9/00 ,  H04N13/02 ,  G09G5/00

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。