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    • 2. 发明授权
    • Image pickup apparatus and control method therefor
    • 摄像装置及其控制方法
    • US08736717B2
    • 2014-05-27
    • US13151797
    • 2011-06-02
    • Makoto Ise
    • Makoto Ise
    • H04N5/262
    • H04N5/378H04N5/3742H04N9/045
    • An image pickup apparatus capable of improving a conversion speed of column parallel A/D converters, while preventing a gradation representation of image pickup signals from becoming rough. The image pickup apparatus includes a CMOS sensor having A/D converters provided on output sides of column amplifiers for respective columns of two-dimensionally arranged pixels. The A/D converters have a first operation mode in which they operate with a first number of conversion bits and at a first conversion speed and a second operation mode in which they operate with a second number of conversion bits and at a second conversion speed. A signal processing circuit adds together plural pieces of two-dimensionally arranged pixel data output from the A/D converter that operate in the second operation mode, thereby expanding the number of gradation bits of the pixel data from the second number of conversion bits.
    • 一种能够提高列并行A / D转换器的转换速度的图像拾取装置,同时防止图像拾取信号的灰度表示变得粗糙。 图像拾取装置包括具有A / D转换器的CMOS传感器,其设置在用于二维排列的像素的列的列放大器的输出侧。 A / D转换器具有第一操作模式,其中它们以第一数目的转换位和第一转换速度和第二操作模式操作,其中它们以第二数量的转换位和第二转换速度操作。 信号处理电路将从第二操作模式中工作的A / D转换器输出的二维二维排列的像素数据相加在一起,从而从第二转换位数扩大像素数据的灰度位数。
    • 3. 发明申请
    • IMAGE SENSING APPARATUS AND CONTROL METHOD THEREFOR, AND IMAGE PROCESSING APPARATUS AND REDUCTION METHOD
    • 图像感测装置及其控制方法及图像处理装置及其减少方法
    • US20090278970A1
    • 2009-11-12
    • US12431406
    • 2009-04-28
    • Makoto Ise
    • Makoto Ise
    • H04N5/335
    • H04N5/372
    • An image sensing apparatus has an image sensor including two-dimensionally arranged photoelectric conversion elements, a VCCD for transferring in a vertical direction electric charge accumulated in the photoelectric conversion elements, and a HCCD for transferring in a horizontal direction the electric charge transferred from the VCCD, the image sensor for carrying out transfer of electric charge by the VCCD during transfer of electric charge by the HCCD; a noise reduction unit for reducing noise including noise caused by driving the VCCD from an image signal output from the HCCD; and a control unit for controlling whether or not noise reduction is to be carried out based on at least one of the sensitivity, shutter speed, and temperature of the image sensor.
    • 图像感测装置具有包括二维排列的光电转换元件的图像传感器,用于在垂直方向上传送累积在光电转换元件中的电荷的VCCD,以及用于在水平方向上传送从VCCD传送的电荷的HCCD 图像传感器,用于在通过HCCD传送电荷期间执行由VCCD传送电荷; 噪声降低单元,用于降低由从HCCD输出的图像信号驱动VCCD引起的噪声的噪声; 以及控制单元,用于基于图像传感器的灵敏度,快门速度和温度中的至少一个来控​​制是否进行降噪。
    • 5. 发明授权
    • Information signal processing apparatus for detecting both dropout of information signals and absence thereof
    • 用于检测信息信号的丢失和不存在的信息信号处理装置
    • US06185361B2
    • 2001-02-06
    • US08385727
    • 1995-02-08
    • Makoto Ise
    • Makoto Ise
    • H04N576
    • H04N5/94
    • An information signal processing apparatus is arranged to detect an amplitude level of an input information signal with a first time constant and to obtain a first amplitude level detection signal which corresponds to the amplitude level of the input information signal detected; to detect an amplitude level of the input information signal with a second time constant which differs from the first time constant and to obtain a second amplitude level detection signal which corresponds to the amplitude level of the input information signal thus detected; to compare the first and second amplitude level detection signals with each other; and to detect any dropout of the input information signal according to the result of comparison.
    • 信息信号处理装置被配置为以第一时间常数检测输入信息信号的幅度电平,并获得对应于检测到的输入信息信号的幅度电平的第一幅度电平检测信号; 以与第一时间常数不同的第二时间常数来检测输入信息信号的幅度电平,并获得与所检测的输入信息信号的幅度电平对应的第二幅度电平检测信号; 将第一和第二振幅电平检测信号彼此进行比较; 并且根据比较结果来检测输入信息信号的任何丢失。
    • 6. 发明授权
    • Image sensing apparatus and control method therefor
    • 图像传感装置及其控制方法
    • US08174589B2
    • 2012-05-08
    • US12508858
    • 2009-07-24
    • Makoto Ise
    • Makoto Ise
    • H04N5/217
    • H04N5/3577H04N5/361H04N5/3658
    • A period of periodical noise caused by a period of a drive signal of a CMOS sensor and a period of a signal generated by driving of a circuit other than the CMOS sensor is acquired, and a length of a horizontal blanking period is adjusted so that one horizontal period of a drive signal of the CMOS sensor becomes an integer multiple of the periodical noise period. Then, column noise is detected from an image signal read out by driving the CMOS sensor with a drive signal based on one horizontal period after the adjustment and the detected column noise is subtracted from the image signal.
    • 获取由CMOS传感器的驱动信号的周期引起的周期性噪声周期和通过驱动除CMOS传感器以外的电路产生的信号周期,并且调整水平消隐周期的长度,使得一个 CMOS传感器的驱动信号的水平周期变为周期性噪声周期的整数倍。 然后,从调整后的一个水平周期的驱动信号通过驱动CMOS传感器读出的图像信号检测列噪声,并从图像信号中减去检测到的列噪声。
    • 7. 发明申请
    • IMAGE PROCESSING APPARATUS
    • 图像处理设备
    • US20110013855A1
    • 2011-01-20
    • US12821322
    • 2010-06-23
    • Makoto Ise
    • Makoto Ise
    • G06K9/40
    • H04N5/3658H04N5/374H04N5/378
    • An image processing apparatus includes a first noise removal unit which removes noise from a pixel signal when a level of the signal falls outside a range defined by first and second threshold levels, a cyclic calculation unit which makes a cyclic calculation based on weighted averaging between signals on an identical column with respect to the signal in which the noise is removed by the first noise removal unit, a column offset detection unit which detects a column offset component for each column based on the calculation result, and a second noise removal unit which performs a noise removal operation with respect to a signal on the identical column using the previously calculated cyclic calculation result when a difference between the previously calculated cyclic calculation value and the current pixel signal value falls outside a range defined by third and fourth threshold levels.
    • 一种图像处理装置包括第一噪声去除单元,其在信号的电平落在由第一和第二阈值水平限定的范围之外时从像素信号中去除噪声;循环计算单元,其基于信号之间的加权平均进行循环计算 在与第一噪声去除单元去除噪声的信号相同的列上,列偏移检测单元,基于计算结果检测每列的列偏移分量,以及第二噪声去除单元,其执行 当先前计算的循环计算值和当前像素信号值之间的差异超出由第三和第四阈值水平限定的范围时,使用先前计算的循环计算结果,相对于同一列上的信号的噪声去除操作。
    • 8. 发明授权
    • Image pickup apparatus for clamping optical black level to a predetermined level
    • 用于将光学黑色电平钳到预定水平的摄像装置
    • US07551212B2
    • 2009-06-23
    • US11231108
    • 2005-09-20
    • Makoto Ise
    • Makoto Ise
    • H04N9/64H04N5/217
    • H04N5/3591H04N5/3575H04N5/361H04N5/3658
    • An image pickup apparatus includes an imaging device configured to convert an optical image of an object into an electrical signal, an optical black level extraction unit configured to extract an optical black level included in an image signal obtained by photoelectric conversion by the imaging device, a blanking level extraction unit configured to extract a blanking level in a blanking period of the image signal, an abnormality detection unit configured to detect an abnormality of the optical black level, and a clamp unit configured, at a normal time when the abnormality is not detected by the abnormality detection unit, to clamp the optical black level to a first target value with the optical black level extracted by the optical black level extraction unit as a reference, and at an abnormal time when the abnormality is detected by the abnormality detection unit, to clamp the optical black level to a second target value with the blanking level extracted by the blanking level extraction unit as a reference.
    • 一种图像拾取装置,包括被配置为将物体的光学图像转换为电信号的成像装置,被配置为提取由成像装置通过光电转换获得的图像信号中包括的光学黑色电平的光学黑色电平提取单元, 消隐电平提取单元,被配置为在图像信号的消隐期中提取消隐电平;异常检测单元,被配置为检测光学黑电平的异常;以及钳位单元,在未检测到异常的正常时刻 通过异常检测单元将光学黑电平以由光学黑电平提取单元提取的光学黑电平作为参考的第一目标值进行钳位,并且在异常检测单元检测到异常的异常时, 将光学黑色电平钳位到第二个目标值,并且通过消隐电平提取提取消隐电平 n单位作为参考。