公开(公告)号：US07773824B2

公开(公告)日：2010-08-10

申请号：US10553085

申请日：2004-04-19

申请人： Shintaro Okada ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Kazuki Yokoyama

发明人： Shintaro Okada ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Kazuki Yokoyama

IPC分类号： G06K9/40

CPC分类号： H04N1/4092 ,  G06T5/004 ,  G06T5/20 ,  H04N5/208

摘要： The present invention relates to a signal processing apparatus and a method, a recording medium, and a program, in which portions except an edge can be smoothed while the edge whose change in pixel value is steep is held correctly. A pixel of attention is determined in step S11, and a neighboring pixel is determined in step S12. In step S13, a difference in pixel values between the pixel of attention and each neighboring pixel is calculated. In step S14, according to a relationship in size between the difference and a threshold value ε., flags are raised for the neighboring pixel and a neighboring pixel which are symmetrical. Furthermore, a flag is also raised for a neighboring pixel away from, in view of the pixel of attention, the symmetrical neighboring pixel for which the flag is raised. In step S15, 7-pixel taps centered around the pixel of attention are averaged by weight. However, with respect to the neighboring pixel for which the flag is raised, the pixel value is replaced by that of the pixel of attention C, and is calculated. The present invention can be applied to a video camera, a television receiver, etc.

摘要翻译： 信号处理设备和方法，记录介质和程序，其中除边缘以外的部分可被平滑化，同时像素值陡峭的边缘被正确地保持。 在步骤S11中确定关注像素，并且在步骤S12中确定相邻像素。 在步骤S13中，计算注意像素和每个相邻像素之间的像素值的差异。 在步骤S14中，根据差值和阈值之间的大小关系，对于相邻像素和对称的相邻像素，标志被升高。 此外，鉴于注意的像素，标记升高的对称相邻像素的标志也被提升为相邻像素。 在步骤S15中，以注意像素为中心的7像素抽头通过重量进行平均。 然而，对于标志升高的相邻像素，像素值被注意C的像素值代替，并被计算。 本发明可应用于摄像机，电视接收机等

公开(公告)号：US07558435B2

公开(公告)日：2009-07-07

申请号：US10805207

申请日：2004-03-22

申请人： Shintaro Okada ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Kazuki Yokoyama

发明人： Shintaro Okada ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Kazuki Yokoyama

IPC分类号： G06K9/40 ,  H04N5/00 ,  H04N5/21

CPC分类号： H04N5/21 ,  H04N5/142

摘要： In each of stages of a nonlinear filter, a successively determined target signal and plural adjacent signals are weighted-averaged with plural sets of different coefficients to calculate plural smoothed signals. Differences in level between the target signal and each of adjacent signals and signals arranged within the predetermined interval from the each of the adjacent signals are compared with a threshold value. According to the comparison, flags are set to the adjacent signal, to an adjacent signal arranged at a symmetrical position, and to adjacent signals arranged beyond the adjacent signals. The intervals of adjacent signals are different among stages. The target signal in level is used instead of the adjacent signals with smoothed signals, which are selected according to the flags. Weighting coefficients may be calculated on the basis of the comparison result, and smoothed signals may be synthesized according to the weighting coefficients.

摘要翻译： 在非线性滤波器的每个级中，连续确定的目标信号和多个相邻信号被加权平均与多组不同系数，以计算多个平滑信号。 将目标信号与布置在与每个相邻信号的预定间隔内的相邻信号和信号中的每一个之间的电平差与阈值进行比较。 根据比较，将标志设置为相邻信号，布置在对称位置的相邻信号以及布置在相邻信号之外的相邻信号。 相邻信号的间隔在不同阶段之间是不同的。 使用电平的目标信号代替具有平滑信号的相邻信号，其根据标志被选择。 可以基于比较结果计算加权系数，并且可以根据加权系数合成平滑信号。

公开(公告)号：US07260268B2

公开(公告)日：2007-08-21

申请号：US10443926

申请日：2003-05-22

申请人： Mitsuyasu Asano ,  Kazuhiko Ueda ,  Takeshi Kubozono ,  Kazuki Yokoyama

发明人： Mitsuyasu Asano ,  Kazuhiko Ueda ,  Takeshi Kubozono ,  Kazuki Yokoyama

IPC分类号： G06K9/40

CPC分类号： G06T7/13

摘要： An input signal is accurately separated into a component in which a change in signal level is sharp and having a large edge, and the other components.A narrow band non-linear filter extracts an edge component in a relatively narrow frequency band from an input signal and outputs the signal. A wide band non-linear filter extracts an edge component in a relatively wide frequency band from the input signal and outputs the signal. A selector outputs a signal composed of the signal where an edge portion is replaced, based on a differentiated value of the signal sent by a differentiator, as the edge component of the input signal. An adder subtracts an output signal from the input signal and outputs the calculated output signal as the edge component of the input signal. This process, may be applied to an image processor.

摘要翻译： 输入信号被准确地分离成其中信号电平的变化是尖锐的并且具有大的边缘的分量，以及其它分量。 窄带非线性滤波器从输入信号中提取相对较窄频带的边缘分量并输出该信号。 宽带非线性滤波器从输入信号中提取相对宽的频带中的边缘分量并输出信号。 选择器输出由边缘部分被替换的信号组成的信号，基于由微分器发送的信号的微分值作为输入信号的边缘分量。 加法器从输入信号中减去输出信号，并输出计算出的输出信号作为输入信号的边沿分量。 该过程可以应用于图像处理器。

公开(公告)号：US20050035977A1

公开(公告)日：2005-02-17

申请号：US10887436

申请日：2004-07-08

申请人： Kazuki Yokoyama ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Tetsuji Inada

发明人： Kazuki Yokoyama ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Tetsuji Inada

IPC分类号： G06T5/20 ,  G06T5/00 ,  H04N1/409 ,  H04N5/205 ,  H04N5/235 ,  G09G5/00

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/20012 ,  G06T2207/20192

摘要： An n-filter according to the present invention includes a nonlinear filter, a pattern detector, and a switch. The nonlinear filter maintains a steep edge whose size is larger than a predetermined threshold in fluctuations of pixels constituting an input image signal and, at the same time, smoothes a non-edge portion that does not include the edge. The pattern detector detects a fine edge in the fluctuations of the pixels constituting the input image signal and notifies the switch that the fine edge exists. The switch outputs the input image signal or an image signal output from the nonlinear filter to the subsequent stage in accordance with the notification from the pattern detector.

摘要翻译： 根据本发明的n滤波器包括非线性滤波器，模式检测器和开关。 非线性滤波器在构成输入图像信号的像素的波动中保持尺寸大于预定阈值的陡峭边缘，并且同时平滑不包括边缘的非边缘部分。 图案检测器检测构成输入图像信号的像素的波动中的细边缘，并向切换器通知精细边缘存在。 根据来自图案检测器的通知，开关将输入图像信号或从非线性滤波器输出的图像信号输出到后级。

公开(公告)号：US07106346B2

公开(公告)日：2006-09-12

申请号：US10887436

申请日：2004-07-08

申请人： Kazuki Yokoyama ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Tetsuji Inada

发明人： Kazuki Yokoyama ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Tetsuji Inada

IPC分类号： G09G5/00

CPC分类号： G06T5/002 ,  G06T5/20 ,  G06T2207/20012 ,  G06T2207/20192

摘要： An n-filter according to the present invention includes a nonlinear filter, a pattern detector, and a switch. The nonlinear filter maintains a steep edge whose size is larger than a predetermined threshold in fluctuations of pixels constituting an input image signal and, at the same time, smoothes a non-edge portion that does not include the edge. The pattern detector detects a fine edge in the fluctuations of the pixels constituting the input image signal and notifies the switch that the fine edge exists. The switch outputs the input image signal or an image signal output from the nonlinear filter to the subsequent stage in accordance with the notification from the pattern detector.

摘要翻译： 根据本发明的n滤波器包括非线性滤波器，模式检测器和开关。 非线性滤波器在构成输入图像信号的像素的波动中保持尺寸大于预定阈值的陡峭边缘，并且同时平滑不包括边缘的非边缘部分。 图案检测器检测构成输入图像信号的像素的波动中的细边缘，并向切换器通知精细边缘存在。 根据来自图案检测器的通知，开关将输入图像信号或从非线性滤波器输出的图像信号输出到后级。

公开(公告)号：US20060215927A1

公开(公告)日：2006-09-28

申请号：US10553085

申请日：2004-04-19

申请人： Shintaro Okada ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Kazuhiko Yokoyama

发明人： Shintaro Okada ,  Kazuhiko Ueda ,  Mitsuyasu Asano ,  Takeshi Kubozono ,  Kazuhiko Yokoyama

IPC分类号： G06K9/40

CPC分类号： H04N1/4092 ,  G06T5/004 ,  G06T5/20 ,  H04N5/208

摘要： The present invention relates to a signal processing apparatus and a method, a recording medium, and a program, in which portions except an edge can be smoothed while the edge whose change in pixel value is steep is held correctly. A pixel of attention is determined in step S11, and a neighbouring pixel is determined in step S12. In step S13, a difference in pixel values between the pixel of attention and each neighbouring pixel is calculated. In step S14, according to a relationship in size between the difference and a threshold value ε., flags are raised for the neighbouring pixel and a neighbouring pixel which are symmetrical. Furthermore, a flag is also raised for a neighbouring pixel away from, in view of the pixel of attention, the symmetrical neighbouring pixel for which the flag is raised. In step S15, 7-pixel taps centered around the pixel of attention are averaged by weight. However, with respect to the neighbouring pixel for which the flag is raised, the pixel value is replaced by that of the pixel of attention C, and is calculated. The present invention can be applied to a video camera, a television receiver, etc.

摘要翻译： 信号处理设备和方法，记录介质和程序，其中除边缘以外的部分可被平滑化，同时像素值陡峭的边缘被正确地保持。 在步骤S11中确定关注像素，并且在步骤S12中确定相邻像素。 在步骤S13中，计算注意像素与每个相邻像素之间的像素值的差异。 在步骤S14中，根据差异和阈值ε之间的大小关系，对于相邻像素和对称的相邻像素而升高标志。 此外，鉴于注意的像素，标记升高的对称相邻像素的标志也被提升为相邻像素。 在步骤S15中，以注意的像素为中心的7像素抽头通过重量进行平均。 然而，对于标志升高的相邻像素，像素值被注意C的像素值代替，并被计算。 本发明可应用于摄像机，电视接收机等

公开(公告)号：US20070177030A1

公开(公告)日：2007-08-02

申请号：US11698814

申请日：2007-01-29

申请人： Kazuki Yokoyama ,  Tetsuji Inada ,  Mitsuyasu Asano ,  Kazuhiko Ueda

发明人： Kazuki Yokoyama ,  Tetsuji Inada ,  Mitsuyasu Asano ,  Kazuhiko Ueda

IPC分类号： H04N5/228

CPC分类号： H04N5/213

摘要： An image processing apparatus includes an image quality correction circuit for correcting an image quality of input video data by enhancing the input video data and a control circuit for controlling the image quality correction circuit. The control circuit detects a signal level of a high-frequency component of the input video data and controls the image quality correction circuit in response to the signal level detection result so that the degree of enhancement of the input video data is increased in response to an increase in the signal level of the high-frequency component.

摘要翻译： 图像处理装置包括：图像质量校正电路，用于通过增强输入视频数据来校正输入视频数据的图像质量;以及控制电路，用于控制图像质量校正电路。 控制电路检测输入视频数据的高频分量的信号电平，并响应于信号电平检测结果控制图像质量校正电路，使得输入视频数据的增强程度响应于 增加高频分量的信号电平。

公开(公告)号：US08243807B2

公开(公告)日：2012-08-14

申请号：US11843028

申请日：2007-08-22

申请人： Kazuki Yokoyama ,  Mitsuyasu Asano ,  Kazuhiko Ueda

发明人： Kazuki Yokoyama ,  Mitsuyasu Asano ,  Kazuhiko Ueda

IPC分类号： H04N7/12

CPC分类号： H04N5/232

摘要： An image processing method in which a video signal is processed to detect a conspicuous area which is thought that a camera person intends to shoot, the method includes the steps of: detecting a motion vector in each portion of the video signal; detecting a representative value that represents a motion in two places in an outer part of a screen; detecting a motion component caused by zooming operations from the representative value; detecting a conspicuous degree by zooming in which a motion component caused by zooming operations is detected in each portion of the video signal based on the motion component caused by zooming operations; correcting a motion vector; detecting a motion component caused by making a pan and tilt from the representative value; detecting a conspicuous degree caused by making a pan and tilt; and detecting a total conspicuous degree.

摘要翻译： 一种图像处理方法，其中处理视频信号以检测相机人想要拍摄的显着区域，该方法包括以下步骤：检测视频信号的每个部分中的运动矢量; 在屏幕的外部部分中检测表示两个位置的运动的代表值; 从代表值检测由缩放操作引起的运动分量; 基于由缩放操作引起的运动分量，通过放大来检测在视频信号的每个部分中检测到由缩放操作引起的运动分量的显着程度; 校正运动矢量; 检测通过从所述代表值进行摇摄和倾斜而导致的运动分量; 检测由平移和倾斜造成的显着程度; 并检测总显着程度。

公开(公告)号：US20090002562A1

公开(公告)日：2009-01-01

申请号：US11972180

申请日：2008-01-10

申请人： Kazuki YOKOYAMA ,  Mitsuyasu Asano ,  Kazuhiko Ueda

发明人： Kazuki YOKOYAMA ,  Mitsuyasu Asano ,  Kazuhiko Ueda

IPC分类号： H04N5/14

CPC分类号： H04N1/6027 ,  G06T5/009 ,  G09G2320/0606 ,  G09G2320/066 ,  G09G2320/103 ,  G09G2340/16

摘要： An image processing device for processing input image data includes a contrast correcting section. The contrast correcting section corrects the input image data using image data of a gradient image, which has a luminance gradient in which a luminance level gradually changes, to make a luminance level of the input image data similar to the luminance level of the gradient image.

摘要翻译： 一种用于处理输入图像数据的图像处理装置包括对比度校正部分。 对比度校正部分使用具有亮度级别逐渐变化的亮度梯度的梯度图像的图像数据校正输入图像数据，以使输入图像数据的亮度水平类似于梯度图像的亮度级。

公开(公告)号：US20070182834A1

公开(公告)日：2007-08-09

申请号：US11652538

申请日：2007-01-12

申请人： Kazuki Yokoyama ,  Tetsuji Inada ,  Mitsuyasu Asano ,  Kazuhiko Ueda

发明人： Kazuki Yokoyama ,  Tetsuji Inada ,  Mitsuyasu Asano ,  Kazuhiko Ueda

IPC分类号： H04N5/217

CPC分类号： H04N5/208 ,  H04N5/142

摘要： An image processing apparatus includes a non-linear smoother for smoothing input video data with an edge component thereof preserved, and outputting smoothed video data, a subtractor for subtracting the smoothed video data from the input video data and outputting high-frequency component video data not containing the edge component, an outline extractor for extracting the edge component from the smoothed video data and outputting edge component video data, a first amplifier for varying a signal level of the edge component video data, a second amplifier for varying a signal level of the high-frequency component video data not containing the edge component, and an adder for adding video data output from the first amplifier and video data output from the second amplifier to one of the smoothed video data and the input video data.

摘要翻译： 一种图像处理装置，包括：非线性平滑器，用于平滑输入视频数据，其边缘分量保存，并输出平滑视频数据;减法器，用于从输入视频数据中减去平滑的视频数据，并输出高频分量视频数据 包含边缘分量的轮廓提取器，用于从平滑的视频数据中提取边缘分量并输出边缘分量视频数据的轮廓提取器，用于改变边缘分量视频数据的信号电平的第一放大器，用于改变边缘分量视频数据的信号电平的第二放大器， 不包含边缘分量的高频分量视频数据，以及用于将从第一放大器输出的视频数据和从第二放大器输出的视频数据相加到平滑视频数据和输入视频数据之一的加法器。