公开(公告)号：US07254276B2

公开(公告)日：2007-08-07

申请号：US10348764

申请日：2003-01-23

申请人： Masahiko Sugimoto ,  Kazuhiko Takemura ,  Kenkichi Hayashi ,  Koichi Sakamoto ,  Masaya Tamaru ,  Hirokazu Kobayashi

发明人： Masahiko Sugimoto ,  Kazuhiko Takemura ,  Kenkichi Hayashi ,  Koichi Sakamoto ,  Masaya Tamaru ,  Hirokazu Kobayashi

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： G06T5/10 ,  G06T5/002 ,  G06T9/007 ,  G06T2207/10024 ,  G06T2207/20052

摘要： An image capturing apparatus for capturing an image of a subject; has: an image pick-up unit for acquiring the image; and a noise reduction unit which removes a frequency component of a color difference signal of the image corresponding to a frequency component of a luminance signal based on the frequency component of the luminance signal of the image.

摘要翻译： 一种用于捕获被摄体的图像的图像捕获装置; 具有：用于获取图像的图像拾取单元; 以及噪声降低单元，其基于图像的亮度信号的频率分量来去除与亮度信号的频率分量相对应的图像的色差信号的频率分量。

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。

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.

公开(公告)号：US20060029287A1

公开(公告)日：2006-02-09

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.

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。

公开(公告)号：US07643072B2

公开(公告)日：2010-01-05

申请号：US11488688

申请日：2006-07-19

申请人： Tetsuro Ashida ,  Kousuke Irie ,  Hitoshi Yamashita ,  Tooru Ueda ,  Kenkichi Hayashi ,  Takeshi Miyashita

发明人： Tetsuro Ashida ,  Kousuke Irie ,  Hitoshi Yamashita ,  Tooru Ueda ,  Kenkichi Hayashi ,  Takeshi Miyashita

IPC分类号： H04N5/235 ,  H04N9/64 ,  H04N3/15 ,  H04N5/335 ,  H03K23/46

CPC分类号： H04N9/045 ,  H04N1/6086 ,  H04N5/361 ,  H04N5/37213 ,  H04N9/735 ,  H04N17/002

摘要： The present invention provides an image capturing apparatus which enables a desired image quality to be maintained regardless of transfer efficiency of a CCD image capturing element. R, G and B signals (CCD-RAW data) are acquired from the CCD image capturing element. In addition, various information, namely transfer efficiency of the CCD image capturing element, camera sensitivity upon photography, drive frequency of the CCD image capturing element, WB gains of the acquired R, G and B signals, pixel count, internal temperature of camera or temperature of the CCD image capturing element, and CCD color filter array of the CCD image capturing element are acquired. Signal processing on the acquired R, G and B signals is changed according to the acquired information in order to suppress image quality deterioration due to transfer efficiency degradation.

摘要翻译： 本发明提供一种能够保持期望的图像质量而不管CCD图像捕获元件的传送效率如何的图像捕获装置。 从CCD摄像元件获取R，G，B信号（CCD-RAW数据）。 此外，CCD图像拍摄元件的转印效率，摄影时的照相机感光度，CCD摄像元件的驱动频率，所获取的R，G，B信号的WB增益，像素数，照相机的内部温度， 获取CCD摄像元件的温度，CCD摄像元件的CCD彩色滤光片阵列。 所获取的R，G和B信号的信号处理根据所获取的信息而改变，以便抑制由于传送效率降低导致的图像质量恶化。

公开(公告)号：US20070040916A1

公开(公告)日：2007-02-22

申请号：US11488688

申请日：2006-07-19

申请人： Tetsuro Ashida ,  Kousuke Irie ,  Hitoshi Yamashita ,  Tooru Ueda ,  Kenkichi Hayashi ,  Takeshi Miyashita

发明人： Tetsuro Ashida ,  Kousuke Irie ,  Hitoshi Yamashita ,  Tooru Ueda ,  Kenkichi Hayashi ,  Takeshi Miyashita

IPC分类号： H04N5/228

CPC分类号： H04N9/045 ,  H04N1/6086 ,  H04N5/361 ,  H04N5/37213 ,  H04N9/735 ,  H04N17/002

摘要： The present invention provides an image capturing apparatus which enables a desired image quality to be maintained regardless of transfer efficiency of a CCD image capturing element. R, G and B signals (CCD-RAW data) are acquired from the CCD image capturing element. In addition, various information, namely transfer efficiency of the CCD image capturing element, camera sensitivity upon photography, drive frequency of the CCD image capturing element, WB gains of the acquired R, G and B signals, pixel count, internal temperature of camera or temperature of the CCD image capturing element, and CCD color filter array of the CCD image capturing element are acquired. Signal processing on the acquired R, G and B signals is changed according to the acquired information in order to suppress image quality deterioration due to transfer efficiency degradation.

摘要翻译： 本发明提供一种能够保持期望的图像质量而不管CCD图像捕获元件的传送效率如何的图像捕获装置。 从CCD摄像元件获取R，G，B信号（CCD-RAW数据）。 此外，CCD图像拍摄元件的转印效率，摄影时的照相机感光度，CCD摄像元件的驱动频率，所获取的R，G，B信号的WB增益，像素数，照相机的内部温度， 获取CCD摄像元件的温度，CCD摄像元件的CCD彩色滤光片阵列。 所获取的R，G和B信号的信号处理根据所获取的信息而改变，以便抑制由于传送效率降低导致的图像质量恶化。

公开(公告)号：US06882364B1

公开(公告)日：2005-04-19

申请号：US09203363

申请日：1998-12-02

申请人： Masafumi Inuiya ,  Masaru Osada ,  Takeshi Misawa ,  Kenkichi Hayashi ,  Satoru Okamoto ,  Osamu Saito

发明人： Masafumi Inuiya ,  Masaru Osada ,  Takeshi Misawa ,  Kenkichi Hayashi ,  Satoru Okamoto ,  Osamu Saito

IPC分类号： G06K9/32 ,  G06K9/40 ,  H04N5/208 ,  H04N9/04 ,  H04N9/083 ,  H04N9/68

CPC分类号： H04N9/045 ,  H04N2209/046

摘要： A solid-state imaging apparatus includes an image pick-up section in which photosensitive devices are arranged in, e.g., a honeycomb G square lattice, RB full-checker pattern due to shifted pixels. Regions void of the photosensitive devices are assumed to be virtual photosensitive devices. A signal processing section generates data for the virtual photosensitive devices by using the data of surrounding photosensitive devices while attaching importance to accurate color reproduction and horizontal and/or vertical resolution. As a result, the number of pixel data are increased in a square lattice arrangement. Therefore, high quality image signals are readily achievable with a smaller number of photosensitive devices than conventional with a conventional apparatus. Interpolation can be executed with the high quality signals to the limit of resolution with an adequate circuit scale. The honeycomb arrangement guarantees the required size of the individual pixel and thereby the sensitivity of the entire apparatus while increasing yield on a production line. False colors particular to a single photosensitive portion can be reduced by, e.g., uniform interpolation. Particularly, when a digital camera is constructed by using an imaging apparatus including optics operable with a silver halide sensitive type of film, false colors can be reduced without resorting to an optical low pass filter.

摘要翻译： 固态成像装置包括其中感光装置布置在例如蜂窝G方格中的图像拾取部分，由于偏移的像素而导致的RB全检查图案。 假定感光器件无效的区域是虚拟光敏器件。 信号处理部分通过使用周围的感光装置的数据来产生虚拟光敏装置的数据，同时重视准确的色彩再现以及水平和/或垂直分辨率。 结果，像素数据的数量以正方形的格子排列增加。 因此，与常规装置相比，使用较少数量的感光装置可以容易地实现高质量图像信号。 可以使用适当的电路规模将高质量信号执行到分辨率极限。 蜂窝布置保证了单个像素的所需尺寸，从而保证了整个设备的灵敏度，同时提高了生产线上的产量。 通过例如均匀插值可以减少单个感光部分特有的假色。 特别地，当通过使用包括可用卤化银敏感类型的膜操作的光学的成像装置构造数字照相机时，可以减少伪色而不诉诸于光学低通滤光器。

公开(公告)号：US5734427A

公开(公告)日：1998-03-31

申请号：US442653

申请日：1995-05-16

申请人： Kenkichi Hayashi

发明人： Kenkichi Hayashi

IPC分类号： H04N5/225 ,  H04N1/21 ,  H04N5/228 ,  H04N5/232 ,  H04N9/07

CPC分类号： H04N1/2137 ,  H04N1/0044 ,  H04N1/2112 ,  H04N1/2158 ,  H04N5/23293 ,  H04N2101/00 ,  H04N2201/212

摘要： In an electronic still camera, an imaging device outputs a high-resolution image signal representative of an optical image incident thereto via a lens. A movie processing section reduces, or thins, the high-resolution image signal to produce a corresponding low-resolution image signal on a real-time basis. The camera, therefore, implements the real-time display of a picture converted from the high-resolution image of a subject on a monitor.

摘要翻译： 在电子静态照相机中，成像装置通过透镜输出代表入射到其上的光学图像的高分辨率图像信号。 电影处理部分降低或降低高分辨率图像信号，以便实时地产生相应的低分辨率图像信号。 因此，相机实现从显示器上的被摄体的高分辨率图像转换的图像的实时显示。

公开(公告)号：US08085323B2

公开(公告)日：2011-12-27

申请号：US12174474

申请日：2008-07-16

申请人： Seiji Tanaka ,  Kenkichi Hayashi

发明人： Seiji Tanaka ,  Kenkichi Hayashi

IPC分类号： H04N5/202

CPC分类号： H04N9/77 ,  H04N5/243

摘要： There are provided an image processing apparatus and method capable of providing a good image whose overexposure and underexposure are suppressed by holding information about saturation and contrast at the time of performing a dynamic range compression. In the image processing apparatus, a level information calculating circuit calculates the level information of each pixel from R, G and B image signals for each pixel, a gain calculating circuit refers to a gain table based on the level information of each pixel calculated by the level information calculating circuit and calculates a gain by which the R, G and B signals of each pixel are multiplied, and a multiplying circuits multiply the R, G and B signals by the gain.

摘要翻译： 提供一种图像处理装置和方法，其能够通过在执行动态范围压缩时保持关于饱和度和对比度的信息来提供抑制过曝和曝光不良的良好图像。 在图像处理装置中，电平信息计算电路针对每个像素从R，G和B图像信号计算每个像素的电平信息，增益计算电路参考基于由所述像素计算的每个像素的电平信息的增益表 并计算每个像素的R，G和B信号相乘的增益，乘法电路将R，G和B信号乘以增益。