Dark frame subtraction using compression

    公开(公告)号:US06983072B2

    公开(公告)日:2006-01-03

    申请号:US10094604

    申请日:2002-03-12

    IPC分类号: G06K9/36

    CPC分类号: G06T5/50 H04N5/361

    摘要: A method and system for improving the quality of an image in an electronic imaging system is disclosed. The method and system comprise capturing an image frame, capturing a compressed dark frame, decompressing a portion of the compressed dark frame and subtracting the decompressed portion of the compressed dark frame from a corresponding section of the image frame. The steps of decompressing a portion of the compressed dark frame and subtracting the decompressed portion from a corresponding section of the image frame are repeated for additional portions of the compressed dark frame.

    Multi-pass dark frame subtraction
    2.
    发明授权
    Multi-pass dark frame subtraction 有权
    多通暗帧减法

    公开(公告)号:US06956978B2

    公开(公告)日:2005-10-18

    申请号:US10094638

    申请日:2002-03-12

    CPC分类号: G06T5/50 H04N5/361

    摘要: A method and system for improving the quality of an image obtained by an electronic imaging system is disclosed. The method and system comprise capturing an image frame, capturing a partial dark frame and subtracting the partial dark frame from a corresponding section of the image frame. The steps of capturing a partial dark frame and subtracting the partial dark frame from a corresponding section of the image frame are repeated for additional partial dark frames.

    摘要翻译: 公开了一种用于提高由电子成像系统获得的图像的质量的方法和系统。 该方法和系统包括捕获图像帧,捕获部分暗帧并从图像帧的相应部分减去部分暗帧。 对于附加的部分暗帧,重复捕获部分暗帧并从图像帧的相应部分减去部分暗帧的步骤。

    CAMERA SENSOR CORRECTION
    3.
    发明申请
    CAMERA SENSOR CORRECTION 审中-公开
    相机传感器校正

    公开(公告)号:US20110058072A1

    公开(公告)日:2011-03-10

    申请号:US12990848

    申请日:2008-05-22

    IPC分类号: H04N9/64

    摘要: Systems and methods for camera sensor correction are disclosed. In an exemplary embodiment, a method may include sampling a spectral response for a plurality of color channels at different spatial locations on a sensor. The method may also include applying a 4×4 color correction matrix at the different spatial locations in an image captured by the sensor. The method may also include converting the spectral response at each spatial location to match the spectral response of the sensor at any one location on the image.

    摘要翻译: 公开了用于相机传感器校正的系统和方法。 在示例性实施例中,方法可以包括对传感器上的不同空间位置处的多个颜色通道采样光谱响应。 该方法还可以包括在由传感器捕获的图像中的不同空间位置处应用4×4颜色校正矩阵。 该方法还可以包括在每个空间位置处转换光谱响应以匹配图像上任何一个位置处的传感器的光谱响应。

    Correcting a captured image in digital imaging devices
    4.
    发明授权
    Correcting a captured image in digital imaging devices 有权
    在数字成像设备中校正捕获的图像

    公开(公告)号:US07755671B2

    公开(公告)日:2010-07-13

    申请号:US11738635

    申请日:2007-04-23

    IPC分类号: H04N9/73

    摘要: A method is provided for correcting a captured image. The method comprises determining an illuminant for the captured image. When the determined illuminant matches a reference illuminant the image is corrected with a reference inversion mask. When the determined illuminant matches a first extreme illuminant, the reference inversion mask is modified using a first set of reference point ratios that corresponds to the first extreme illuminant and the image is corrected with the modified inversion mask. When the determined illuminant does not match the first extreme illuminant, a set of reference point ratios are calculated for the determined illuminant. The reference inversion mask is modified using the calculated set of reference point ratios and the image is corrected with the modified inversion mask.

    摘要翻译: 提供了一种用于校正捕获图像的方法。 该方法包括确定拍摄图像的光源。 当所确定的光源与参考光源匹配时,用参考反转掩模校正图像。 当所确定的光源与第一极端照明器匹配时,使用对应于第一极端照明器的第一组参考点比率来修改参考反转掩模,并且用修改的反转掩模校正图像。 当所确定的光源与第一极光照射不匹配时,针对所确定的光源计算一组参考点比率。 使用所计算的参考点比率集合修改参考反转掩模,并且使用修改的反转掩模校正图像。

    FILTERING IMAGE DATA
    6.
    发明申请
    FILTERING IMAGE DATA 审中-公开
    过滤图像数据

    公开(公告)号:US20130094753A1

    公开(公告)日:2013-04-18

    申请号:US13275816

    申请日:2011-10-18

    IPC分类号: G06K9/00

    摘要: Systems, methods, and machine-readable and executable instructions are provided for filtering image data. Filtering image data can include determining a desired depth of field of an image, determining a distance between a pixel of the image and the desired depth of field. Filtering image data can also include adjusting a contrast of the pixel in proportion to a magnitude of a weight of the pixel, wherein the weight is based on the distance.

    摘要翻译: 提供了系统,方法和机器可读和可执行指令来过滤图像数据。 过滤图像数据可以包括确定图像的期望景深,确定图像的像素与期望的景深之间的距离。 滤波图像数据还可以包括与像素的权重的大小成比例地调整像素的对比度,其中权重基于该距离。

    CORRECTING A CAPTURED IMAGE IN DIGITAL IMAGING DEVICES
    7.
    发明申请
    CORRECTING A CAPTURED IMAGE IN DIGITAL IMAGING DEVICES 有权
    在数字成像设备中校正捕获的图像

    公开(公告)号:US20080259186A1

    公开(公告)日:2008-10-23

    申请号:US11738635

    申请日:2007-04-23

    IPC分类号: H04N9/68 G06K9/00

    摘要: A method is provided for correcting a captured image. The method comprises determining an illuminant for the captured image. When the determined illuminant matches a reference illuminant the image is corrected with a reference inversion mask. When the determined illuminant matches a first extreme illuminant, the reference inversion mask is modified using a first set of reference point ratios that corresponds to the first extreme illuminant and the image is corrected with the modified inversion mask. When the determined illuminant does not match the first extreme illuminant, a set of reference point ratios are calculated for the determined illuminant. The reference inversion mask is modified using the calculated set of reference point ratios and the image is corrected with the modified inversion mask.

    摘要翻译: 提供了一种用于校正拍摄图像的方法。 该方法包括确定拍摄图像的光源。 当所确定的光源与参考光源匹配时,用参考反转掩模校正图像。 当所确定的光源与第一极端照明器匹配时,使用对应于第一极端照明器的第一组参考点比率修改参考反转掩模,并且使用修改的反转掩模校正图像。 当所确定的光源与第一极光照射不匹配时,针对所确定的光源计算一组参考点比率。 使用所计算的参考点比率集合修改参考反转掩模,并且使用修改的反转掩模校正图像。

    Method and apparatus for generating data representative of an image
    8.
    发明申请
    Method and apparatus for generating data representative of an image 有权
    用于产生表示图像的数据的方法和装置

    公开(公告)号:US20050030409A1

    公开(公告)日:2005-02-10

    申请号:US10637956

    申请日:2003-08-08

    CPC分类号: H04N5/23287 H04N5/23248

    摘要: A method and device for generating image data are disclosed herein. One embodiment of the method comprises focusing an image of an object onto a two-dimensional photosensor array, wherein an optical element is located between the object and the two-dimensional photosensor array. The optical element is moved, wherein the moving causes the image focused on the two-dimensional photosensor array to move parallel to the two-dimensional photosensor array. Data representative of the image is generated by the two-dimensional photosensor array while the optical element is moving.

    摘要翻译: 本文公开了一种用于生成图像数据的方法和装置。 该方法的一个实施例包括将物体的图像聚焦到二维光电传感器阵列上,其中光学元件位于物体和二维光电传感器阵列之间。 移动光学元件,其中移动导致聚焦在二维光电传感器阵列上的图像平行于二维光电传感器阵列移动。 当光学元件移动时,代表图像的数据由二维光电传感器阵列产生。

    Depth mask assisted video stabilization
    9.
    发明授权
    Depth mask assisted video stabilization 有权
    深度掩模辅助视频稳定

    公开(公告)号:US09100574B2

    公开(公告)日:2015-08-04

    申请号:US14346390

    申请日:2011-10-18

    IPC分类号: H04N5/232 G06T5/00

    摘要: Systems (490), methods (340), and machine-readable and executable instructions (428) are provided for depth mask assisted video stabilization. Depth mask assisted video stabilization can include creating a first depth mask from a first frame (101, 201) and a second depth mask from a second frame (102, 202) to obtain depth information (342) and defining a first list of feature points (111-1a, 111-2a, 111-3a, 111-4a, 113-1a, 113-2a, 113-3a, 113-4a, 113-5a) from the first frame (101, 201) and a second list of feature points (111-1b, 111-2b, 111-3b, 111-4b, 113-1b, 113-2b, 113-3b, 113-4b, 113-5b) from the second frame (102, 202) (344). Depth mask assisted video stabilization can also include comparing feature points from the first list of feature points (111-1a-111-4a, 113-1a-113-5a) with feature points from the second list of feature points (111-1b-111-4b, 113-1b-113-5b) to find a number of common feature point pairs (111-1a, 111-1b), (111-2a, 111-2b), (111-3a, 111-3b), (111-4a, 111-4b), (113-1a, 113-1b), (113-2a, 113-2b), (113-3a, 113-3b), (113-4a, 113-4b), (113-5a, 113-5b)) (345) and creating a number of motion matrices from the common feature point pairs ((111-1a, 111-1b), (111-2a, 111-2b), (111-3a, 111-3b), (111-4a, 111-4b), (113-1a, 113-1b), (113-2a, 113-2b), (113-3a, 113-3b), (113-4a, 113-4b), (113-5a, 113-5b)) (346). Depth mask assisted video stabilization can also include including the motion matrices in a correction matrix (348) and applying the inverse of the correction matrix to the second frame (102, 202) to perform video stabilization (350).

    摘要翻译: 系统(490),方法(340)和机器可读和可执行指令(428)被提供用于深度掩模辅助视频稳定。 深度掩模辅助视频稳定可以包括从第一帧(101,201)创建第一深度掩码和从第二帧(102,202)创建第二深度掩码以获得深度信息(342)并且定义特征点的第一列表 (101,201)的第一列(111-1a,111-2a,111-3a,111-4a,113-1a,113-2a,113-3a,113-4a,113-5a) 的特征点(111-1b,111-2b,111-3b,111-4b,113-1b,113-2b,113-3b,113-4b,113-5b)从第二帧(102,202)( 344)。 深度掩模辅助视频稳定还可以包括将来自特征点(111-1a-111-4a,113-1a-113-5a)的第一列表的特征点与来自第二特征点列表(111-1b- (111-1a,111-1b),(111-2a,111-2b),(111-3a,111-3b),(111-1a,111-2b), ,(111-4a,111-4b),(113-1a,113-1b),(113-2a,113-2b),(113-3a,113-3b),(113-4a,113-4b) (111-1a,111-1b),(111-2a,111-2b),(111),(113-5a,113-5b))(345) (113-1a,111-3b),(111-4a,111-4b),(113-1a,113-1b),(113-2a,113-2b),(113-3a,113-3b),(113 -4a,113-4b),(113-5a,113-5b))(346)。 深度掩模辅助视频稳定还可以包括在校正矩阵(348)中包括运动矩阵,并将校正矩阵的逆应用于第二帧(102,202)以执行视频稳定(350)。

    SPATIALLY-VARYING SPECTRAL RESPONSE CALIBRATION DATA
    10.
    发明申请
    SPATIALLY-VARYING SPECTRAL RESPONSE CALIBRATION DATA 有权
    空间变化的光谱响应校准数据

    公开(公告)号:US20120133765A1

    公开(公告)日:2012-05-31

    申请号:US13263254

    申请日:2009-04-22

    IPC分类号: H04N7/18

    CPC分类号: H04N17/002 H04N9/045

    摘要: Systems, methods, and other embodiments associated with producing spatially varying spectral response calibration data are described. One example method includes controlling a digital camera to capture characteristic data arrays from light sensors in the digital camera in response to the digital camera being exposed to light stimuli from a multi-spectral reference display. The data arrays will be acquired multiple times at multiple locations in multiple stimuli provided from the multi-spectral reference display. The method also includes controlling a calibration logic to manipulate characteristic data arrays to produce spatially varying spectral response calibration data as a function of using characteristic data arrays and known wavelengths of the light in light stimuli. The method may also include providing the spatially varying spectral response calibration data to a downstream consumer (e.g., correction process, quality control process), displaying the data, or storing the data.

    摘要翻译: 描述了与产生空间变化的光谱响应校准数据相关联的系统,方法和其它实施例。 一个示例性方法包括控制数字照相机以响应于数字照相机暴露于来自多光谱参考显示器的光刺激而从数字照相机中的光传感器捕获特征数据阵列。 在从多光谱参考显示器提供的多个刺激中的多个位置将数据阵列被多次获取。 该方法还包括控制校准逻辑以操纵特征数据阵列以产生空间变化的光谱响应校准数据,作为在光刺激中使用特征数据阵列和已知波长的光的函数。 该方法还可以包括向下游消费者提供空间上变化的光谱响应校准数据(例如,校正过程,质量控制过程),显示数据或存储数据。