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    Noise reduction apparatus and method
    1.
    发明授权
    Noise reduction apparatus and method 有权
    降噪装置及方法

    公开(公告)号：US07630573B2

    公开(公告)日：2009-12-08

    申请号：US11192181

    申请日：2005-07-29

    申请人： Kenkichi Hayashi ,  Seiji Tanaka ,  Masaya Tamaru ,  Makoto Ooishi ,  Kazuhiko Takemura

    发明人： Kenkichi Hayashi ,  Seiji Tanaka ,  Masaya Tamaru ,  Makoto Ooishi ,  Kazuhiko Takemura

    IPC分类号： G06K9/40

    CPC分类号： G06T5/002 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10024 ,  G06T2207/20016 ,  G06T2207/20192

    摘要： Noise reduction processing in accordance with frequency band is executed. To accomplish this, a image data dividing circuit divides image data into image data having frequencies in a low-frequency region, image data having frequencies in a low- to intermediate frequency region and image data having frequencies in a low- to high-frequency region. These items of image data thus divided on a frequency-band basis are input to respective ones of noise reduction circuits that have been set to respective ones of parameters suited to noise reduction of image data having frequencies in the low-, low- to intermediate and low- to high-frequency regions, respectively. The items of image data that have thus undergone noise reduction processing conforming to frequency band are input to an image data combining circuit. The latter combines the image data so as to obtain image data representing one frame of an image.

    摘要翻译： 执行根据频带的降噪处理。 为了实现这一点，图像数据分割电路将图像数据划分为具有低频区域中的频率的图像数据，具有低频至中频区域中的频率的图像数据和具有低频至高频区域中的频率的图像数据 。 这些按频带划分的图像数据项目被输入到各自的噪声降低电路，这些噪声降低电路已被设置为适合于具有低，低至中频频率的图像数据的噪声降低的各个参数， 低频到高频区。 已经进行了符合频带的降噪处理的图像数据的项目被输入到图像数据组合电路。 后者组合图像数据以获得表示图像的一帧的图像数据。

    Noise reduction apparatus, method and program
    2.
    发明授权
    Noise reduction apparatus, method and program 有权
    降噪装置，方法和程序

    公开(公告)号：US07586525B2

    公开(公告)日：2009-09-08

    申请号：US11207883

    申请日：2005-08-22

    申请人： Masaya Tamaru ,  Kazuhiko Takemura ,  Makoto Ooishi ,  Kenkichi Hayashi ,  Seiji Tanaka

    发明人： Masaya Tamaru ,  Kazuhiko Takemura ,  Makoto Ooishi ,  Kenkichi Hayashi ,  Seiji Tanaka

    IPC分类号： H04N5/217 ,  H04N5/228 ,  G06K9/40

    CPC分类号： H04N5/357 ,  H04N9/045

    摘要： CCD-RAW data obtained by sensing the image of a subject is applied to a first noise reduction circuit via a offset correction circuit, a gain correction circuit, a linear matrix circuit and a gamma correction circuit. Uncorrelated noise is removed from the CCD-RAW data in the first noise reduction circuit. The CCD-RAW data is subjected to synchronization (color interpolation) in the synchronization processing circuit, and luminance data Y and color difference data C is generated by an RGB-YC conversion circuit. The generated luminance data Y and generated color difference data C is subjected to noise reduction processing on a per-frequency-component basis in the second noise reduction circuit. Suitable noise reduction processing conforming to the state of image data before and after synchronization processing is executed.

    摘要翻译： 通过感测对象的图像获得的CCD-RAW数据经由偏移校正电路，增益校正电路，线性矩阵电路和伽马校正电路施加到第一降噪电路。 在第一噪声降低电路中从CCD-RAW数据中去除不相关的噪声。 CCD-RAW数据在同步处理电路中进行同步（颜色插值），并且RGB-YC转换电路产生亮度数据Y和色差数据C. 所生成的亮度数据Y和生成的色差数据C在第二噪声降低电路中对每个频率分量进行降噪处理。 执行符合同步处理之前和之后的图像数据的状态的合适的降噪处理。

    Noise reduction apparatus, method and program
    3.
    发明申请
    Noise reduction apparatus, method and program 有权

    公开(公告)号：US20060038899A1

    公开(公告)日：2006-02-23

    申请号：US11207883

    申请日：2005-08-22

    申请人： Masaya Tamaru ,  Kazuhiko Takemura ,  Makoto Ooishi ,  Kenkichi Hayashi ,  Seiji Tanaka

    发明人： Masaya Tamaru ,  Kazuhiko Takemura ,  Makoto Ooishi ,  Kenkichi Hayashi ,  Seiji Tanaka

    IPC分类号： H04N5/217

    CPC分类号： H04N5/357 ,  H04N9/045

    摘要： CCD-RAW data obtained by sensing the image of a subject is applied to a first noise reduction circuit via a offset correction circuit, a gain correction circuit, a linear matrix circuit and a gamma correction circuit. Uncorrelated noise is removed from the CCD-RAW data in the first noise reduction circuit. The CCD-RAW data is subjected to synchronization (color interpolation) in the synchronization processing circuit, and luminance data Y and color difference data C is generated by an RGB-YC conversion circuit. The generated luminance data Y and generated color difference data C is subjected to noise reduction processing on a per-frequency-component basis in the second noise reduction circuit. Suitable noise reduction processing conforming to the state of image data before and after synchronization processing is executed.

    Image pickup apparatus and image processing method
    6.
    发明授权
    Image pickup apparatus and image processing method 有权
    图像拾取装置和图像处理方法

    公开(公告)号：US07508421B2

    公开(公告)日：2009-03-24

    申请号：US10601654

    申请日：2003-06-24

    申请人： Masaya Tamaru ,  Koichi Sakamoto ,  Koji Ichikawa ,  Masahiko Sugimoto ,  Manabu Hyodo ,  Kazuhiko Takemura ,  Hirokazu Kobayashi

    发明人： Masaya Tamaru ,  Koichi Sakamoto ,  Koji Ichikawa ,  Masahiko Sugimoto ,  Manabu Hyodo ,  Kazuhiko Takemura ,  Hirokazu Kobayashi

    IPC分类号： H04N5/235

    CPC分类号： H04N5/2355 ,  H04N5/202 ,  H04N5/235 ,  H04N9/69 ,  H04N9/735

    摘要： An image combined high sensitivity image and low sensitivity image is provided with well-adjusted white balance and broad dynamic range. The image is obtained by multiplying the combined data by total gain that depends on scene. A white balance is adjusted with gain value calculated from of high output image data. Lv value representing luminance is calculated and compared with a threshold to decide whether or not the high sensitivity image and the low sensitivity image should be combined. First gamma correction unit performs gamma-correction for the image signal derived from the high sensitivity signal with first gamma character, second gamma correction unit performs gamma-correction for the image signal derived from the low sensitivity signal with second gamma character that is different from the first gamma character, and addition unit combines the image signal from the first gamma correction unit and the image signal from the second gamma correction unit.

    摘要翻译： 组合高灵敏度图像和低灵敏度图像的图像具有良好调整的白平衡和宽动态范围。 通过将组合数据乘以取决于场景的总增益来获得图像。 用高输出图像数据计算的增益值调整白平衡。 计算表示亮度的Lv值并将其与阈值进行比较，以决定是否应该组合高灵敏度图像和低灵敏度图像。 第一伽马校正单元对于具有第一伽玛字符的高灵敏度信号导出的图像信号执行伽马校正，第二伽马校正单元对于具有与第一伽玛校正不同的第二伽马字符从低灵敏度信号导出的图像信号进行伽马校正 第一伽马字符和加法单元组合来自第一伽马校正单元的图像信号和来自第二伽马校正单元的图像信号。

    Image pickup apparatus and photometer
    7.
    发明授权
    Image pickup apparatus and photometer 失效
    摄像设备和光度计

    公开(公告)号：US07400355B2

    公开(公告)日：2008-07-15

    申请号：US10618699

    申请日：2003-07-15

    申请人： Masaya Tamaru ,  Masahiko Sugimoto ,  Koichi Sakamoto ,  Manabu Hyodo ,  Kazuhiko Takemura ,  Koji Ichikawa

    发明人： Masaya Tamaru ,  Masahiko Sugimoto ,  Koichi Sakamoto ,  Manabu Hyodo ,  Kazuhiko Takemura ,  Koji Ichikawa

    IPC分类号： H04N5/238

    CPC分类号： H04N5/2351

    摘要： A received light quantity detection device where high-sensitivity pixels and low-sensitivity pixels are formed is used for photometry. It is possible to perform measurement over the low range (for example, 0[EV] through 8[EV]with a single occasion of photometry. In the case that both the high-sensitivity pixels and the low-sensitivity pixels are saturated, it is possible to perform further measurement over the high range (for example, 8[EV] through 16[EV]) by narrowing the aperture or increasing the electronic shutter speed for retried photometry with a retried photometry. This reduces the time required to calculate a correct exposure value on image pickup apparatus such as a camera.

    摘要翻译： 将形成高灵敏度像素和低灵敏度像素的接收光量检测装置用于测光。 可以通过一次光度测量在低范围（例如，0 [EV]至8 [EV]）上进行测量。在高灵敏度像素和低灵敏度像素都饱和的情况下， 可以通过缩小光圈或者通过重试光度法增加用于重试测光的电子快门速度，在高范围（例如，8 [EV]至16 [EV]）上进行进一步的测量，这减少了计算 在诸如照相机的图像拾取装置上的正确曝光值。

    Image pickup apparatus and image processing method
    9.
    发明授权
    Image pickup apparatus and image processing method 有权
    图像拾取装置和图像处理方法

    公开(公告)号：US07750950B2

    公开(公告)日：2010-07-06

    申请号：US11606087

    申请日：2006-11-30

    申请人： Masaya Tamaru ,  Koichi Sakamoto ,  Koji Ichikawa ,  Masahiko Sugimoto ,  Manabu Hyodo ,  Kazuhiko Takemura ,  Hirokazu Kobayashi

    发明人： Masaya Tamaru ,  Koichi Sakamoto ,  Koji Ichikawa ,  Masahiko Sugimoto ,  Manabu Hyodo ,  Kazuhiko Takemura ,  Hirokazu Kobayashi

    IPC分类号： H04N9/73

    CPC分类号： H04N5/2355 ,  H04N5/202 ,  H04N5/235 ,  H04N9/69 ,  H04N9/735

    摘要： An image combined high sensitivity image and low sensitivity image is provided with well-adjusted white balance and broad dynamic range. The image is obtained by multiplying the combined data by total gain that depends on scene. A white balance is adjusted with gain value calculated from of high output image data. Lv value representing luminance is calculated and compared with a threshold to decide whether or not the high sensitivity image and the low sensitivity image should be combined. First gamma correction unit performs gamma-correction for the image signal derived from the high sensitivity signal with first gamma character, second gamma correction unit performs gamma-correction for the image signal derived from the low sensitivity signal with second gamma character that is different from the first gamma character, and addition unit combines the image signal from the first gamma correction unit and the image signal from the second gamma correction unit.

    摘要翻译： 组合高灵敏度图像和低灵敏度图像的图像具有良好调整的白平衡和宽动态范围。 通过将组合数据乘以取决于场景的总增益来获得图像。 用高输出图像数据计算的增益值调整白平衡。 计算表示亮度的Lv值并将其与阈值进行比较，以决定是否应该组合高灵敏度图像和低灵敏度图像。 第一伽马校正单元对于具有第一伽玛字符的高灵敏度信号导出的图像信号执行伽马校正，第二伽马校正单元对于具有与第一伽玛校正不同的第二伽马字符从低灵敏度信号导出的图像信号进行伽马校正 第一伽马字符和加法单元组合来自第一伽马校正单元的图像信号和来自第二伽马校正单元的图像信号。