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    LOW-POWER IMAGE CHANGE DETECTOR
    42.
    发明申请
    LOW-POWER IMAGE CHANGE DETECTOR 审中-公开
    低功率图像更改检测器

    公开(公告)号：US20150293018A1

    公开(公告)日：2015-10-15

    申请号：US14677878

    申请日：2015-04-02

    Applicant: RAMBUS INC.

    Inventor： David Geoffrey Stork ,  Evan Lawrence Erickson ,  Patrick R. Gill ,  James Tringali

    IPC: G01N21/45

    CPC classification number: G01J1/0437 ,  G02B5/1871 ,  G02B27/0075 ,  G02B27/4205 ,  G02B2207/129 ,  H01L27/14625 ,  H04N5/2251

    Abstract: A sensing device projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the point-spread response distributes spatial modulations over a relatively large area on the array. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. An image-change detector incorporating such a sensing device uses very little power because only a small number of active pixels are required to cover a visual field.

    Abstract translation: 感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，点扩散响应在阵列上相对较大的区域上分布空间调制。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 包含这种感测装置的图像变换检测器使用非常小的功率，因为​​仅需要少量的有源像素来覆盖视野。

    Phase gratings with odd symmetry for high-resolution lensed and lensless optical sensing
    43.
    发明授权
    Phase gratings with odd symmetry for high-resolution lensed and lensless optical sensing 有权
    具有奇对称性的相位光栅用于高分辨率透镜和无镜头光学感测

    公开(公告)号：US09110240B2

    公开(公告)日：2015-08-18

    申请号：US14184978

    申请日：2014-02-20

    Applicant: Rambus Inc.

    Inventor： Patrick R. Gill ,  David Geoffrey Stork

    IPC: H04N5/225 ,  G02B13/16 ,  G02B5/18 ,  G02B27/00

    CPC classification number: G02B5/1842 ,  G02B5/1871 ,  G02B27/0037 ,  G02B27/0068 ,  G02B27/0087 ,  H04N5/225 ,  H04N5/2254 ,  H04N5/23232 ,  H04N5/23235 ,  H04N5/23245 ,  H04N5/3696 ,  H04N9/045

    Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Used in conjunction with a converging optical element, versions of these gratings provide depth information about objects in an imaged scene. This depth information can be computationally extracted to obtain a depth map of the scene.

    Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，空间调制在波长和间距范围内成为焦点。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 与会聚光学元件一起使用，这些光栅的版本提供有关成像场景中物体的深度信息。 该深度信息可以被计算地提取以获得场景的深度图。

    Phase Gratings with Odd Symmetry for High-Resolution Lensed and Lensless Optical Sensing
    44.
    发明申请
    Phase Gratings with Odd Symmetry for High-Resolution Lensed and Lensless Optical Sensing 有权
    具有奇数对称性的相位光栅用于高分辨率光纤和无镜头光学感测

    公开(公告)号：US20140253781A1

    公开(公告)日：2014-09-11

    申请号：US14184978

    申请日：2014-02-20

    Applicant: Rambus Inc.

    Inventor： Patrick R. Gill ,  David Geoffrey Stork

    IPC: G02B5/18 ,  H04N5/225

    CPC classification number: G02B5/1842 ,  G02B5/1871 ,  G02B27/0037 ,  G02B27/0068 ,  G02B27/0087 ,  H04N5/225 ,  H04N5/2254 ,  H04N5/23232 ,  H04N5/23235 ,  H04N5/23245 ,  H04N5/3696 ,  H04N9/045

    Abstract: A sensing device with an odd-symmetry grating projects near-field spatial modulations onto a closely spaced photodetector array. Due to physical properties of the grating, the spatial modulations are in focus for a range of wavelengths and spacings. The spatial modulations are captured by the array, and photographs and other image information can be extracted from the resultant data. Used in conjunction with a converging optical element, versions of these gratings provide depth information about objects in an imaged scene. This depth information can be computationally extracted to obtain a depth map of the scene.

    Abstract translation: 具有奇对称光栅的感测装置将近场空间调制投影到紧密间隔的光电检测器阵列上。 由于光栅的物理性质，空间调制在波长和间距范围内成为焦点。 空间调制由阵列捕获，照片和其他图像信息可从结果数据中提取出来。 与会聚光学元件一起使用，这些光栅的版本提供有关成像场景中物体的深度信息。 该深度信息可以被计算地提取以获得场景的深度图。

    Methods and systems for reducing image artifacts
    45.
    发明授权
    Methods and systems for reducing image artifacts 有权

    公开(公告)号：US10652435B2

    公开(公告)日：2020-05-12

    申请号：US15714483

    申请日：2017-09-25

    Applicant: Rambus Inc.

    Inventor： Patrick R. Gill ,  Thomas Vogelsang

    IPC: H04N5/217 ,  G02B5/18 ,  G02B27/00 ,  G02B27/42

    Abstract: An imaging system with a diffractive optic captures an interference pattern responsive to light from an imaged scene to represent the scene in a spatial-frequency domain. The sampled frequency-domain image data has properties that are determined by the point-spread function of diffractive optic and characteristics of scene. An integrated processor can modified the sampled frequency-domain image data responsive to such properties before transforming the modified frequently-domain image data into the pixel domain.

    Depth measurement using a phase grating
    48.
    发明授权
    Depth measurement using a phase grating 有权

    公开(公告)号：US10317205B2

    公开(公告)日：2019-06-11

    申请号：US15548745

    申请日：2016-01-25

    Applicant: Rambus Inc.

    Inventor： Patrick R. Gill

    IPC: G02B27/10 ,  G01C3/14 ,  G06T7/593 ,  H04N13/271 ,  H04N13/10

    Abstract: Binocular depth-perception systems use binary, phase-antisymmetric gratings to cast point-source responses onto an array of photosensitive pixels. The gratings and arrays can be manufactured to tight tolerances using well characterized and readily available integrated-circuit fabrication techniques, and can thus be made small, cost-effective, and efficient. The gratings produce point-source responses that are large relative to the pitch of the pixels, and that exhibit wide ranges of spatial frequencies and orientations. Such point-source responses make it easy to distinguish the point-source responses from fixed-pattern noise the results from spatial frequencies of structures that form the array.

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