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1. 发明申请

US20130336596A1 IMAGE PROCESSING DEVICE AND METHOD 有权
标题翻译：图像处理装置和方法
公开(公告)号：US20130336596A1
公开(公告)日：2013-12-19
申请号：US14002144
申请日：2012-01-31
申请人： Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Takashi Ito , Narihiro Matoba
发明人： Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Takashi Ito , Narihiro Matoba
IPC分类号： G06T5/20
CPC分类号： G06T5/20 , G06T5/002 , G06T5/008 , G06T2207/20182 , H04N5/21
摘要： For each pixel in an image (Din), a contrast correlation value (CT) is detected for peripheral areas centered around the pixel to be corrected (1), a contrast enhancement coefficient (Ken) is determined in accordance with the contrast correlation value (CT) (2), and in accordance with the enhancement coefficient (Ken), local contrast is enhanced for each pixel and an intermediate image (D3) is generated (3). When performing noise reduction (5) by smoothing the intermediate image (D3) in the time direction, the degree of noise reduction is controlled in accordance with a noise reduction coefficient (Knr) that is large where the enhancement coefficient (Ken) is large. With respect to a low-contrast image such as one captured under fog, haze or other poor weather conditions, the contrast in areas having reduced contrast is appropriately improved, and the noise that is enhanced in conjunction with contrast improvement is reduced, enabling a high quality image to be obtained.
摘要翻译：对于图像（Din）中的每个像素，以围绕待校正像素（1）为中心的周边区域检测对比度相关值（CT），根据对比度相关值（ CT）（2），并且根据增强系数（Ken），对于每个像素增强局部对比度，并且生成中间图像（D3）（3）。当通过在时间方向上平滑中间图像（D3）来执行降噪（5）时，根据增强系数（Ken）大的噪声降低系数（Knr）来控制噪声降低的程度。对于诸如在雾，雾或其他差的天气条件下捕获的低对比度图像，适当地改善了对比度降低的区域中的对比度，并且降低了与对比度改善相结合的噪声，使得能够高要获得质量图像。

2. 发明授权

US09153015B2 Image processing device and method 有权
标题翻译：图像处理装置及方法
公开(公告)号：US09153015B2
公开(公告)日：2015-10-06
申请号：US14002144
申请日：2012-01-31
申请人： Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Takashi Ito , Narihiro Matoba
发明人： Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Takashi Ito , Narihiro Matoba
IPC分类号： G06T5/20 , H04N5/21 , G06T5/00
CPC分类号： G06T5/20 , G06T5/002 , G06T5/008 , G06T2207/20182 , H04N5/21
摘要： For each pixel in an image (Din), a contrast correlation value (CT) is detected for peripheral areas centered around the pixel to be corrected (1), a contrast enhancement coefficient (Ken) is determined in accordance with the contrast correlation value (CT) (2), and in accordance with the enhancement coefficient (Ken), local contrast is enhanced for each pixel and an intermediate image (D3) is generated (3). When performing noise reduction (5) by smoothing the intermediate image (D3) in the time direction, the degree of noise reduction is controlled in accordance with a noise reduction coefficient (Knr) that is large where the enhancement coefficient (Ken) is large. With respect to a low-contrast image such as one captured under fog, haze or other poor weather conditions, the contrast in areas having reduced contrast is appropriately improved, and the noise that is enhanced in conjunction with contrast improvement is reduced, enabling a high quality image to be obtained.
摘要翻译：对于图像（Din）中的每个像素，以围绕待校正像素（1）为中心的周边区域检测对比度相关值（CT），根据对比度相关值（ CT）（2），并且根据增强系数（Ken），对于每个像素增强局部对比度，并且生成中间图像（D3）（3）。当通过在时间方向上平滑中间图像（D3）来执行降噪（5）时，根据增强系数（Ken）大的噪声降低系数（Knr）来控制噪声降低的程度。对于诸如在雾，雾或其他差的天气条件下捕获的低对比度图像，适当地改善了对比度降低的区域中的对比度，并且降低了与对比度改善相结合的噪声，使得能够高要获得质量图像。

3. 发明申请

US20150016722A1 IMAGE PROCESSING DEVICE AND METHOD 有权
标题翻译：图像处理装置和方法
公开(公告)号：US20150016722A1
公开(公告)日：2015-01-15
申请号：US14380629
申请日：2013-02-21
申请人： Tsubasa Onda , Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Narihiro Matoba
发明人： Tsubasa Onda , Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Narihiro Matoba
IPC分类号： G06T5/00 , H04N9/73 , H04N9/77
CPC分类号： G06T5/009 , G06T5/008 , G06T2207/10024 , G06T2207/20012 , H04N1/6027 , H04N5/235 , H04N5/2355 , H04N9/3179 , H04N9/73 , H04N9/77
摘要： A region determination circuit (60) determines whether or not each of the pixels in an image is within a region subject to correction, in which pixels having at most a predetermined brightness level appear with a frequency equal to or less than a predetermined value. An offset level generation circuit (10) generates an offset level (Offset) on the basis of the brightness of the pixels determined to be within the region subject to correction. An offset subtraction circuit (1) subtracts the offset level (Offset) from the image signal (Yi) to generate an offset image signal (Yofst). A gain generation circuit (20) generates a gain for the offset image signal (Yofst). A gain multiplication circuit (2) multiplies the offset image signal (Yofst) by the gain to generate a corrected image signal (Ya).
摘要翻译：区域确定电路（60）确定图像中的每个像素是否在经过校正的区域内，其中出现具有等于或小于预定值的频率的具有至多预定亮度级的像素。偏移电平生成电路（10）根据确定为在校正区域内的像素的亮度产生偏移电平（Offset）。偏移减法电路（1）从图像信号（Yi）中减去偏移电平（Offset），产生偏移图像信号（Yofst）。增益生成电路（20）产生偏移图像信号（Yofst）的增益。增益乘法电路（2）将偏移图像信号（Yofst）乘以增益以产生校正图像信号（Ya）。

4. 发明授权

US09349168B2 Image processing device and method to correct brightness signal of an input image 有权
标题翻译：用于校正输入图像的亮度信号的图像处理装置和方法
公开(公告)号：US09349168B2
公开(公告)日：2016-05-24
申请号：US14380629
申请日：2013-02-21
申请人： Tsubasa Onda , Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Narihiro Matoba
发明人： Tsubasa Onda , Yoshitaka Toyoda , Daisuke Suzuki , Koichi Yamashita , Narihiro Matoba
IPC分类号： G06K9/00 , G06K9/40 , G06T5/00 , H04N5/235 , H04N9/31 , H04N1/60 , H04N9/73 , H04N9/77
CPC分类号： G06T5/009 , G06T5/008 , G06T2207/10024 , G06T2207/20012 , H04N1/6027 , H04N5/235 , H04N5/2355 , H04N9/3179 , H04N9/73 , H04N9/77
摘要： A region determination circuit (60) determines whether or not each of the pixels in an image is within a region subject to correction, in which pixels having at most a predetermined brightness level appear with a frequency equal to or less than a predetermined value. An offset level generation circuit (10) generates an offset level (Offset) on the basis of the brightness of the pixels determined to be within the region subject to correction. An offset subtraction circuit (1) subtracts the offset level (Offset) from the image signal (Yi) to generate an offset image signal (Yofst). A gain generation circuit (20) generates a gain for the offset image signal (Yofst). A gain multiplication circuit (2) multiplies the offset image signal (Yofst) by the gain to generate a corrected image signal (Ya).
摘要翻译：区域确定电路（60）确定图像中的每个像素是否在经过校正的区域内，其中出现具有等于或小于预定值的频率的具有至多预定亮度级的像素。偏移电平生成电路（10）根据确定为在校正区域内的像素的亮度产生偏移电平（Offset）。偏移减法电路（1）从图像信号（Yi）中减去偏移电平（Offset），产生偏移图像信号（Yofst）。增益生成电路（20）产生偏移图像信号（Yofst）的增益。增益乘法电路（2）将偏移图像信号（Yofst）乘以增益以产生校正图像信号（Ya）。

5. 发明授权

US6014300A Power source circuit 失效
标题翻译：电源电路
公开(公告)号：US6014300A
公开(公告)日：2000-01-11
申请号：US93877
申请日：1998-06-09
申请人： Koichi Yamashita , Hiroaki Sugiura , Tetsuya Kuno , Narihiro Matoba
发明人： Koichi Yamashita , Hiroaki Sugiura , Tetsuya Kuno , Narihiro Matoba
IPC分类号： H02J1/00 , H02H9/00 , H02M3/155 , H02H3/00
CPC分类号： H02M1/36 , H02H9/001
摘要： A power source circuit includes switch for connecting and disconnecting a power source to and from a circuit proper; stabilizing means for suppressing a variation of an input voltage to stabilize the input voltage; voltage increasing means for increasing the input voltage in amplitude; switching means for controlling a voltage increasing operation; rectifying means for rectifying a switching waveform; smoothing means for smoothing a rectified waveform; and control means for controlling an output voltage to be constant in amplitude. In the power source circuit, the start of operating the power source circuit is delayed behind the start of supplying electric power. Therefore, it is prevent a power source circuit from failing to operate under the condition that a power source of a large internal resistance is coupled thereto, and the rush current, for example, causes the power source voltage drop.
摘要翻译：电源电路包括用于将电源与电路本体连接和断开的开关; 用于抑制输入电压的变化以稳定输入电压的稳定装置; 电压增加装置，用于增加输入电压的振幅; 用于控制升压操作的开关装置; 整流装置，用于整流开关波形; 用于平滑整流波形的平滑装置; 以及用于控制输出电压在振幅上恒定的控制装置。在电源电路中，电源电路的运行开始在供电开始后延迟。因此，能够防止电源电路在内部电阻大的电源与其连接的情况下不工作，并且冲击电流例如导致电源电压下降。

6. 发明授权

US06421086B1 Image pickup apparatus 失效
标题翻译：摄像设备
公开(公告)号：US06421086B1
公开(公告)日：2002-07-16
申请号：US09088896
申请日：1998-06-02
申请人： Tetsuya Kuno , Hiroaki Sugiura , Koichi Yamashita , Narihiro Matoba
发明人： Tetsuya Kuno , Hiroaki Sugiura , Koichi Yamashita , Narihiro Matoba
IPC分类号： H04N5335
CPC分类号： H04N5/2352 , H04N5/2351
摘要： A first LUT composed of table values of brightness of N subjects determined in such a manner that the integrated value is made to be constant and a second LUT composed of table values of N charge storage time periods corresponding to the table values of the brightness of the N subjects are provided. When an image has been picked up with charge storage time at an n-th address in the second LUT, integrated value &Sgr; obtained by the calculating means 6 is divided by the n-th charge storage time S so that the brightness L of the subject is calculated. The charge storage time S corresponding to the calculated brightness L of the subject is selected from the first and second LUT so that exposure is controlled.
摘要翻译：第一LUT由以下方式确定的N个被摄体的亮度的表值组成：积分值被设定为恒定，以及第二LUT，其由与N个像素的亮度的表值相对应的N个电荷存储时间段的表值组成提供N科目。当在第二LUT中的第n个地址处的电荷存储时间拍摄图像时，由计算装置6获得的积分值SIGMA除以第n个电荷存储时间S，使得被摄体的亮度L 被计算。从第一和第二LUT中选择与所计算的被摄体亮度L对应的电荷存储时间S，从而控制曝光。

7. 发明授权

US09123105B2 Image processing device, image processing method, image capturing device, computer program, and recording medium 有权
标题翻译：图像处理装置，图像处理方法，图像捕获装置，计算机程序和记录介质
公开(公告)号：US09123105B2
公开(公告)日：2015-09-01
申请号：US14346347
申请日：2012-02-17
申请人： Takeo Fujita , Daisuke Suzuki , Narihiro Matoba
发明人： Takeo Fujita , Daisuke Suzuki , Narihiro Matoba
IPC分类号： G06K9/40 , G06T5/00 , H04N5/217 , H04N5/357 , G06T5/20
CPC分类号： G06T5/002 , G06T5/006 , G06T5/20 , G06T2207/20024 , G06T2207/20182 , G06T2207/20192 , H04N5/217 , H04N5/3572
摘要： An image processing device (21) is provided with: a noise suppression processor (23) for creating a noise-reduced image (NRs) by executing spatial filtering on a plurality of pixels, which fall within a reference range that includes a pixel of interest, in an input image (Is); and a distortion correction processor (24) for correcting distortion by local stretching or shrinking by a magnification factor (R) corresponding to the local amount of distortion in the noise-reduced image (NRs). The reference range is dynamically changed in accordance with the magnification factor (R). Control is performed so that the reference range becomes narrower as the magnification factor (R) increases.
摘要翻译：一种图像处理装置（21）具有：噪声抑制处理器（23），用于通过对包含感兴趣像素的参考范围内的多个像素执行空间滤波来产生噪声降低图像（NRs），在输入图像（Is）中; 以及失真校正处理器（24），用于通过局部拉伸或缩小对应于噪声降低图像（NRs）中的局部失真量的放大倍率（R）来校正失真。参考范围根据放大系数（R）动态变化。执行控制，使得参考范围随着放大因子（R）增加而变窄。

8. 发明申请

US20140226915A1 IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE CAPTURING DEVICE, COMPUTER PROGRAM, AND RECORDING MEDIUM 有权
标题翻译：图像处理装置，图像处理方法，图像捕获装置，计算机程序和记录介质
公开(公告)号：US20140226915A1
公开(公告)日：2014-08-14
申请号：US14346347
申请日：2012-02-17
申请人： Takeo Fujita , Daisuke Suzuki , Narihiro Matoba
发明人： Takeo Fujita , Daisuke Suzuki , Narihiro Matoba
IPC分类号： G06T5/00
CPC分类号： G06T5/002 , G06T5/006 , G06T5/20 , G06T2207/20024 , G06T2207/20182 , G06T2207/20192 , H04N5/217 , H04N5/3572
摘要： An image processing device (21) is provided with: a noise suppression processor (23) for creating a noise-reduced image (NRs) by executing spatial filtering on a plurality of pixels, which fall within a reference range that includes a pixel of interest, in an input image (Is); and a distortion correction processor (24) for correcting distortion by local stretching or shrinking by a magnification factor (R) corresponding to the local amount of distortion in the noise-reduced image (NRs). The reference range is dynamically changed in accordance with the magnification factor (R). Control is performed so that the reference range becomes narrower as the magnification factor (R) increases.
摘要翻译：一种图像处理装置（21）具有：噪声抑制处理器（23），用于通过对包含感兴趣像素的参考范围内的多个像素执行空间滤波来产生噪声降低图像（NRs），在输入图像（Is）中; 以及失真校正处理器（24），用于通过局部拉伸或缩小对应于噪声降低图像（NRs）中的局部失真量的放大倍率（R）来校正失真。参考范围根据放大系数（R）动态变化。执行控制，使得参考范围随着放大因子（R）增加而变窄。

9. 发明授权

US08913842B2 Image smoothing method based on content-dependent filtering 有权
标题翻译：基于内容依赖过滤的图像平滑方法
公开(公告)号：US08913842B2
公开(公告)日：2014-12-16
申请号：US13696191
申请日：2010-07-06
申请人： Takeo Fujita , Narihiro Matoba
发明人： Takeo Fujita , Narihiro Matoba
IPC分类号： G06K9/40 , G06T5/00 , G06T5/20
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/10004 , G06T2207/20192
摘要： A pattern matching processing unit 10 binarizes input image data 1, compares a binarized pattern with a pattern provided for each of groups, and outputs either first information indicating a group to which a pattern that matches the binarized pattern belongs or second information indicating no match. A 0-degree direction dedicated filter 21, a 45-degree direction dedicated filter 22, a 90-degree direction dedicated filter 23, and a 135-degree direction dedicated filter 24 which are disposed correspondingly to the groups carry out smoothing processes according to the direction of an edge of the image, respectively. When the pattern matching processing unit outputs the first information, a selector 30 selects the output of either one of the filters corresponding to the group as output image data 2, whereas when the pattern matching processing unit outputs the second information, the selector outputs the input image data 1 as the output image data 2.
摘要翻译：图案匹配处理单元10将输入图像数据2二进制化，将二值化图案与为每个组提供的图案进行比较，并且输出指示与二值化图案匹配的图案所属的组的第一信息或指示不匹配的第二信息。与各组对应地设置的0度方向专用滤波器21，45度方向专用滤波器22，90度方向专用滤波器23以及135度方向专用滤波器24进行根据分别是图像边缘的方向。当图案匹配处理单元输出第一信息时，选择器30选择与该组对应的任何一个滤波器的输出作为输出图像数据2，而当图案匹配处理单元输出第二信息时，选择器输出输入图像数据1作为输出图像数据2。

10. 发明授权

US07970231B2 Image processing method 有权
标题翻译：图像处理方法
公开(公告)号：US07970231B2
公开(公告)日：2011-06-28
申请号：US10553424
申请日：2004-02-19
申请人： Masashi Tamura , Narihiro Matoba
发明人： Masashi Tamura , Narihiro Matoba
IPC分类号： G06K9/40 , G06K9/00 , H04N5/00
CPC分类号： H04N9/045
摘要： An image processing method has an edge intensity value calculating section (4) for calculating an edge intensity value in a neighborhood of a pixel of interest from feature values of micro regions calculated by a feature value calculating section (3); an edge intensity value correcting section (5) for correcting the edge intensity value calculated by the edge intensity value calculating section (4) in accordance with an edge intensity correction curve; and a filter value calculating section (6) for calculating a low-pass filter value of the pixel of interest from image signal values of neighboring pixels having the same color component as the pixel of interest. It corrects the image signal value of the pixel of interest by carrying out weighted addition of the image signal value of the pixel of interest and the low-pass filter value using the edge intensity values before and after the correction.
摘要翻译：一种图像处理方法具有边缘强度值计算部分，用于根据由特征值计算部分（3）计算的微区域的特征值计算感兴趣像素附近的边缘强度值; 边缘强度值校正部（5），用于根据边缘强度校正曲线校正由边缘强度值计算部（4）计算的边缘强度值; 以及滤波器值计算部分（6），用于从具有与感兴趣像素相同的颜色分量的相邻像素的图像信号值计算感兴趣像素的低通滤波器值。通过使用校正前后的边缘强度值，对感兴趣像素的图像信号值和低通滤波器值进行加权相加，校正感兴趣像素的图像信号值。

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