SYSTEMS AND METHODS FOR CALIBRATING IMAGE SENSORS
    1.
    发明申请
    SYSTEMS AND METHODS FOR CALIBRATING IMAGE SENSORS 有权
    用于校准图像传感器的系统和方法

    公开(公告)号:US20120019669A1

    公开(公告)日:2012-01-26

    申请号:US12839741

    申请日:2010-07-20

    IPC分类号: H04N5/335 H04N17/00

    摘要: Systems and methods are provided for calibrating image sensors. In some embodiments, a processing module of an image system can automatically perform a self-calibration process after a production unit of an image sensor has been integrated into an end product system. For example, the processing module can calibrate a production unit based on one or more reference pixels of the production unit, where the one or more reference pixels have minimal color filtration. In some embodiments, the processing module may perform local calibrations by correcting specifically for spatial variations in a color filter array (“CFA”). In some embodiments, the processing module can perform global calibrations by correcting for optical density variations in the CFA. In some embodiments, a processing module can determine whether the cause of production variations is related to production variations of a CFA or production variations of an infrared (“IR”) cutoff filter.

    摘要翻译: 提供了校准图像传感器的系统和方法。 在一些实施例中,图像系统的处理模块可以在将图像传感器的生产单元集成到最终产品系统中之后自动执行自校准过程。 例如,处理模块可以基于生产单元的一个或多个参考像素校准生产单元,其中一个或多个参考像素具有最少的颜色过滤。 在一些实施例中,处理模块可以通过特别地校正滤色器阵列(“CFA”)中的空间变化来执行本地校准。 在一些实施例中,处理模块可以通过校正CFA中的光密度变化来执行全局校准。 在一些实施例中,处理模块可以确定生产变化的原因是否与CFA的生产变化或红外线(“IR”)截止滤波器的生产变化有关。

    Detecting transient signals using stacked-chip imaging systems
    2.
    发明授权
    Detecting transient signals using stacked-chip imaging systems 有权
    使用堆叠芯片成像系统检测瞬态信号

    公开(公告)号:US09185307B2

    公开(公告)日:2015-11-10

    申请号:US13401607

    申请日:2012-02-21

    摘要: Imaging systems may be provided with stacked-chip image sensors. A stacked-chip image sensor may include a vertical chip stack that includes an array of image pixels, control circuitry and storage and processing circuitry. The image pixel array may be coupled to the control circuitry using vertical metal interconnects. The control circuitry may provide digital image data to the storage and processing circuitry over additional vertical conductive. The stacked-chip image sensor may be configured to capture image frames at a capture frame rate and to output processed image frames at an output frame rate that is lower that the capture frame rate. The storage and processing circuitry may be configured to process image frames concurrently with image capture operations. Processing image frames concurrently with image capture operations may include adjusting the positions of moving objects and by adjusting the pixel brightness values of regions of image frames that have changing brightness.

    摘要翻译: 成像系统可以设置有堆叠芯片图像传感器。 堆叠芯片图像传感器可以包括垂直芯片堆叠,其包括图像像素阵列,控制电路和存储和处理电路。 图像像素阵列可以使用垂直金属互连耦合到控制电路。 控制电路可以通过额外的垂直导电来向存储和处理电路提供数字图像数据。 堆叠芯片图像传感器可以被配置为以捕获帧速率捕获图像帧,并以低于捕获帧速率的输出帧速率输出处理后的图像帧。 存储和处理电路可以被配置为与图像捕获操作同时处理图像帧。 与图像捕获操作同时处理图像帧可以包括调整移动物体的位置,并且通过调整亮度变化的图像帧的区域的像素亮度值。

    DETECTING TRANSIENT SIGNALS USING STACKED-CHIP IMAGING SYSTEMS
    3.
    发明申请
    DETECTING TRANSIENT SIGNALS USING STACKED-CHIP IMAGING SYSTEMS 有权
    使用堆叠芯片成像系统检测瞬态信号

    公开(公告)号:US20130215290A1

    公开(公告)日:2013-08-22

    申请号:US13401607

    申请日:2012-02-21

    IPC分类号: H04N9/68 H04N5/76

    摘要: Imaging systems may be provided with stacked-chip image sensors. A stacked-chip image sensor may include a vertical chip stack that includes an array of image pixels, control circuitry and storage and processing circuitry. The image pixel array may be coupled to the control circuitry using vertical metal interconnects. The control circuitry may provide digital image data to the storage and processing circuitry over additional vertical conductive. The stacked-chip image sensor may be configured to capture image frames at a capture frame rate and to output processed image frames at an output frame rate that is lower that the capture frame rate. The storage and processing circuitry may be configured to process image frames concurrently with image capture operations. Processing image frames concurrently with image capture operations may include adjusting the positions of moving objects and by adjusting the pixel brightness values of regions of image frames that have changing brightness.

    摘要翻译: 成像系统可以设置有堆叠芯片图像传感器。 堆叠芯片图像传感器可以包括垂直芯片堆叠,其包括图像像素阵列,控制电路和存储和处理电路。 图像像素阵列可以使用垂直金属互连耦合到控制电路。 控制电路可以通过额外的垂直导电来向存储和处理电路提供数字图像数据。 堆叠芯片图像传感器可以被配置为以捕获帧速率捕获图像帧,并以低于捕获帧速率的输出帧速率输出处理后的图像帧。 存储和处理电路可以被配置为与图像捕获操作同时处理图像帧。 与图像捕获操作同时处理图像帧可以包括调整移动物体的位置,并且通过调整亮度变化的图像帧的区域的像素亮度值。

    SUPER-RESOLUTION IMAGING SYSTEMS
    4.
    发明申请
    SUPER-RESOLUTION IMAGING SYSTEMS 有权
    超分辨率成像系统

    公开(公告)号:US20130050526A1

    公开(公告)日:2013-02-28

    申请号:US13458599

    申请日:2012-04-27

    申请人: Brian Keelan

    发明人: Brian Keelan

    摘要: Electronic devices may include super-resolution imaging systems for capturing multiple relatively low-resolution images and combining the captured images to form a high-resolution image. The imaging system may include image sensors configured to capture information above the Nyquist frequency of the image sensor by providing each image sensor pixel in an array of image sensor pixels with structures for reducing the size of the clear pixel aperture below the size of the image sensor pixel. The structures may be configured to pass light that is incident on a central region of the image sensor pixel to a photo-sensitive element through a color filter element and to reject light that is incident on a surrounding edge region. The structures may include a microlens configured to reject light that is incident on the edge region or a combination of a microlens and masking structures. Masking structures may be absorbing, reflecting, or interfering structures.

    摘要翻译: 电子设备可以包括用于捕获多个相对低分辨率图像并组合所捕获的图像以形成高分辨率图像的超分辨率成像系统。 成像系统可以包括被配置为通过将图像传感器像素阵列中的每个图像传感器像素提供到具有低于图像传感器的尺寸的清晰像素孔径的结构的结构来捕获高于图像传感器的奈奎斯特频率的信息的图像传感器 像素。 这些结构可以被配置为将通过滤色器元件入射到图像传感器像素的中心区域的光通过光敏元件并且抑制入射在周围边缘区域上的光。 该结构可以包括被配置为抑制入射在边缘区域上的光或微透镜和掩模结构的组合的微透镜。 遮蔽结构可能是吸收,反射或干扰结构。

    Systems and methods for calibrating image sensors
    5.
    发明授权
    Systems and methods for calibrating image sensors 有权
    用于校准图像传感器的系统和方法

    公开(公告)号:US09066072B2

    公开(公告)日:2015-06-23

    申请号:US12839741

    申请日:2010-07-20

    摘要: Systems and methods are provided for calibrating image sensors. In some embodiments, a processing module of an image system can automatically perform a self-calibration process after a production unit of an image sensor has been integrated into an end product system. For example, the processing module can calibrate a production unit based on one or more reference pixels of the production unit, where the one or more reference pixels have minimal color filtration. In some embodiments, the processing module may perform local calibrations by correcting specifically for spatial variations in a color filter array (“CFA”). In some embodiments, the processing module can perform global calibrations by correcting for optical density variations in the CFA. In some embodiments, a processing module can determine whether the cause of production variations is related to production variations of a CFA or production variations of an infrared (“IR”) cutoff filter.

    摘要翻译: 提供了校准图像传感器的系统和方法。 在一些实施例中,图像系统的处理模块可以在将图像传感器的生产单元集成到最终产品系统中之后自动执行自校准过程。 例如,处理模块可以基于生产单元的一个或多个参考像素校准生产单元,其中一个或多个参考像素具有最少的颜色过滤。 在一些实施例中,处理模块可以通过特别地校正滤色器阵列(“CFA”)中的空间变化来执行本地校准。 在一些实施例中,处理模块可以通过校正CFA中的光密度变化来执行全局校准。 在一些实施例中,处理模块可以确定生产变化的原因是否与CFA的生产变化或红外线(“IR”)截止滤波器的生产变化有关。

    SYSTEM FOR ENHANCING DEPTH OF FIELD WITH DIGITAL IMAGE PROCESSING
    6.
    发明申请
    SYSTEM FOR ENHANCING DEPTH OF FIELD WITH DIGITAL IMAGE PROCESSING 有权
    用于增强数字图像处理深度的系统

    公开(公告)号:US20100303373A1

    公开(公告)日:2010-12-02

    申请号:US12474215

    申请日:2009-05-28

    IPC分类号: G06K9/40

    摘要: An electronic device may have a digital image sensor for capturing an image and may have storage and processing circuitry for processing the image to produce a corresponding enhanced depth-of-field image. Multiple image areas, within a given image may be processed. As each image area is processed, a signal-to-noise ratio may be computed. A kernel parameter characteristic curve may be used to select values to be used for kernel parameters for each image area based on the computed signal-to-noise ratio for that image area. Kernels may be generated for each image area and the generated kernels may be convolved with their respective image areas to modify the image areas. This allows each image area to be selectively sharpened or smoothed based on its signal-to-noise ratio. Image areas with low and high signal-to-noise ratios may be sharpened less those with moderate signal-to-noise ratios to enhance depth of field in the image.

    摘要翻译: 电子设备可以具有用于捕获图像的数字图像传感器,并且可以具有用于处理图像以产生相应的增强景深图像的存储和处理电路。 可以处理给定图像内的多个图像区域。 当处理每个图像区域时,可以计算信噪比。 内核参数特性曲线可以用于基于所计算的该图像区域的信噪比来选择用于每个图像区域的核参数的值。 可以为每个图像区域生成内核,并且生成的内核可以与其各自的图像区域进行卷积以修改图像区域。 这允许每个图像区域基于其信噪比被选择性地锐化或平滑。 具有低和高信噪比的图像区域可以减少具有中等信噪比的图像区域,以增强图像中的景深。

    Film plane rotation in rigid cameras for depth of field and perspective
control
    7.
    发明授权
    Film plane rotation in rigid cameras for depth of field and perspective control 失效
    刚性相机中的薄膜平面旋转用于景深和透视控制

    公开(公告)号:US5534959A

    公开(公告)日:1996-07-09

    申请号:US251888

    申请日:1994-06-01

    IPC分类号: G03B5/08 G03B19/12 G03B17/02

    CPC分类号: G03B5/08 G03B19/12

    摘要: A rigid camera with a film holder independently rotatable about a horizontal axis and a vertical axis. The film holder rotates synchronously with the focusing plate of the viewfinder. The focusing plate rotates independently about a first horizontal axis parallel to the horizontal axis of the film holder when the film holder rotates about its horizontal axis, and about a second horizontal axis perpendicular to its first axis when the film plane rotates about its vertical axis.

    摘要翻译: 一种具有独立于水平轴和垂直轴可旋转的胶片保持架的刚性照相机。 胶片保持架与取景器的聚焦板同步旋转。 当薄膜夹持器围绕其水平轴线旋转时,聚焦板围绕平行于胶片保持器的水平轴线的第一水平轴线旋转,并且当胶片平面围绕其垂直轴线旋转时,约一垂直于其第一轴线的第二水平轴线旋转。

    Super-resolution imaging systems
    8.
    发明授权
    Super-resolution imaging systems 有权
    超分辨率成像系统

    公开(公告)号:US08866951B2

    公开(公告)日:2014-10-21

    申请号:US13458599

    申请日:2012-04-27

    申请人: Brian Keelan

    发明人: Brian Keelan

    IPC分类号: H04N5/225 H04N5/232

    摘要: Electronic devices may include super-resolution imaging systems for capturing multiple relatively low-resolution images and combining the captured images to form a high-resolution image. The imaging system may include image sensors configured to capture information above the Nyquist frequency of the image sensor by providing each image sensor pixel in an array of image sensor pixels with structures for reducing the size of the clear pixel aperture below the size of the image sensor pixel. The structures may be configured to pass light that is incident on a central region of the image sensor pixel to a photo-sensitive element through a color filter element and to reject light that is incident on a surrounding edge region. The structures may include a microlens configured to reject light that is incident on the edge region or a combination of a microlens and masking structures. Masking structures may be absorbing, reflecting, or interfering structures.

    摘要翻译: 电子设备可以包括用于捕获多个相对低分辨率图像并组合所捕获的图像以形成高分辨率图像的超分辨率成像系统。 成像系统可以包括被配置为通过将图像传感器像素阵列中的每个图像传感器像素提供到具有低于图像传感器的尺寸的清晰像素孔径的结构的结构来捕获高于图像传感器的奈奎斯特频率的信息的图像传感器 像素。 这些结构可以被配置为将通过滤色器元件入射到图像传感器像素的中心区域的光通过光敏元件并且抑制入射在周围边缘区域上的光。 该结构可以包括被配置为抑制入射在边缘区域上的光或微透镜和掩模结构的组合的微透镜。 遮蔽结构可能是吸收,反射或干扰结构。

    System for enhancing depth of field with digital image processing
    9.
    发明授权
    System for enhancing depth of field with digital image processing 有权
    用数字图像处理增强景深的系统

    公开(公告)号:US08526754B2

    公开(公告)日:2013-09-03

    申请号:US12474215

    申请日:2009-05-28

    IPC分类号: G06K9/40

    摘要: An electronic device may have a digital image sensor for capturing an image and may have storage and processing circuitry for processing the image to produce a corresponding enhanced depth-of-field image. Multiple image areas, within a given image may be processed. As each image area is processed, a signal-to-noise ratio may be computed. A kernel parameter characteristic curve may be used to select values to be used for kernel parameters for each image area based on the computed signal-to-noise ratio for that image area. Kernels may be generated for each image area and the generated kernels may be convolved with their respective image areas to modify the image areas. This allows each image area to be selectively sharpened or smoothed based on its signal-to-noise ratio. Image areas with low and high signal-to-noise ratios may be sharpened less those with moderate signal-to-noise ratios to enhance depth of field in the image.

    摘要翻译: 电子设备可以具有用于捕获图像的数字图像传感器,并且可以具有用于处理图像以产生相应的增强景深图像的存储和处理电路。 可以处理给定图像内的多个图像区域。 当处理每个图像区域时,可以计算信噪比。 内核参数特性曲线可以用于基于所计算的该图像区域的信噪比来选择用于每个图像区域的核参数的值。 可以为每个图像区域生成内核,并且生成的内核可以与其各自的图像区域进行卷积以修改图像区域。 这允许每个图像区域基于其信噪比被选择性地锐化或平滑。 具有低和高信噪比的图像区域可以减少具有中等信噪比的图像区域,以增强图像中的景深。