公开(公告)号：US06144412A

公开(公告)日：2000-11-07

申请号：US950666

申请日：1997-10-15

申请人： Yasuhiro Hirano ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Shoji Kimura ,  Toshiyuki Kurita ,  Tsuguo Itagaki ,  Haruki Takata

发明人： Yasuhiro Hirano ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Shoji Kimura ,  Toshiyuki Kurita ,  Tsuguo Itagaki ,  Haruki Takata

IPC分类号： H04N5/46 ,  G06T3/40 ,  G09G5/00 ,  H04N3/223 ,  H04N7/01 ,  H04N11/20

CPC分类号： G06T3/4007 ,  H04N7/012 ,  H04N7/0122

摘要： In order to carry out format conversion or scaling processing of picture signal by a memory having a small capacity, picture signals of interlace scanning are converted into picture signals of progressive scanning by interpolation by using an IP convertor 1 and a multiple scan convertor 3, a scaling processing of expansion and compression in the horizontal direction is firstly performed by using a horizontal scaling unit 5, processing of expansion, compression, frame rate conversion, synchronization and the like are secondly performed by using a vertical scaling unit 6 and commonly using memories used in scaling processing in the vertical direction and finally, color space conversion or inverse gamma processing is performed by using a picture quality improving unit 8 thereby converting the picture signals into picture signals S6 having a predetermined format.

摘要翻译： 为了通过具有小容量的存储器执行图像信号的格式转换或缩放处理，隔行扫描的图像信号通过使用IP转换器1和多扫描转换器3进行插值而被转换为逐行扫描的图像信号， 首先通过使用水平缩放单元5执行水平方向上的扩展和压缩的缩放处理，通过使用垂直缩放单元6并且通常使用所使用的存储器来再次执行扩展，压缩，帧速率转换，同步等的处理 在垂直方向的缩放处理中，最后，通过使用图像质量改善单元8执行颜色空间转换或反伽马处理，从而将图像信号转换为具有预定格式的图像信号S6。

公开(公告)号：US06611294B1

公开(公告)日：2003-08-26

申请号：US09720327

申请日：2000-12-22

申请人： Yasuhiro Hirano ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata ,  Takashi Kanehachi

发明人： Yasuhiro Hirano ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata ,  Takashi Kanehachi

IPC分类号： H04N701

CPC分类号： H04N7/012 ,  H04N5/145 ,  H04N5/4401 ,  H04N7/014 ,  H04N19/513 ,  H04N19/61

摘要： The present invention provides a movement correction frame count transformation apparatus for carrying out frame count transformation processing on a picture signal. In the apparatus, an input picture signal (S1) of interlaced scanning is converted into a signal (S2) of sequential scanning by an IP conversion unit (1). A movement detecting unit (3) detects movement detection signals (MD1 and MD2). A block unit movement vector searching unit (4) detects a block unit movement vector (BMV) by carrying out block matching processing. A movement vector correcting unit (5) carries out miniblock division processing to generate a movement vector (BV) if a movement correction error is equal to or greater than a threshold value. A pixel unit movement vector generating unit (6) generates a movement vector with a smallest error component between a frame signal of a current frame and a frame signal of an immediately preceding frame as a movement vector of a pixel. An MC interpolation frame signal generating unit (7) generates an interpolation frame in movement correction processing carried out by a median filter in order to produce a signal (S4) of sequential scanning as a result of frame count transformation based on movement correction.

摘要翻译： 本发明提供一种用于对图像信号执行帧计数变换处理的移动校正帧计数变换装置。 在该装置中，隔行扫描的输入图像信号（S1）被IP转换单元（1）转换成顺序扫描的信号（S2）。 移动检测单元（3）检测移动检测信号（MD1和MD2）。 块单元移动向量搜索单元（4）通过执行块匹配处理来检测块单元移动向量（BMV）。 如果移动校正误差等于或大于阈值，则运动矢量校正单元（5）执行小块分割处理以生成运动矢量（BV）。 像素单元移动向量生成单元（6）生成当前帧的帧信号与前一帧的帧信号之间的最小误差分量的运动矢量作为像素的运动矢量。 MC内插帧信号生成单元（7）生成由中值滤波器执行的移动校正处理中的内插帧，以便基于移动校正产生作为帧计数变换的结果的顺序扫描的信号（S4）。

公开(公告)号：US06509930B1

公开(公告)日：2003-01-21

申请号：US09596555

申请日：2000-06-19

申请人： Yasuhiro Hirano ,  Takaaki Matono ,  Haruki Takata ,  Takashi Hasegawa ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru

发明人： Yasuhiro Hirano ,  Takaaki Matono ,  Haruki Takata ,  Takashi Hasegawa ,  Kazuo Ishikura ,  Masato Sugiyama ,  Mitsuo Nakajima ,  Yasutaka Tsuru

IPC分类号： H04N701

CPC分类号： H04N7/012 ,  H04N5/145 ,  H04N5/147

摘要： A low-cost motion-compensated picture signal scan conversion circuit ensuring high picture quality is to be provided. The circuit has a motion-adaptive first interpolation signal generator; a second motion-compensated interpolation signal generator; a motion vector detector; and a setting unit for checking the reliability of motion compensation by comparing signals from the second interpolation signal generator with signals on interlaced scanning lines, and setting the selection of signals from the first and second interpolation signal generators, wherein interlaced scanned signals are converted into progressive scanned signals by setting the threshold so that the threshold become smaller with an increase in the number of re-searched blocks in the detection of motion vectors.

摘要翻译： 提供确保高图像质量的低成本运动补偿图像信号扫描转换电路。 该电路具有运动自适应第一内插信号发生器; 第二运动补偿插值信号发生器; 运动矢量检测器; 以及设置单元，用于通过将来自第二内插信号发生器的信号与隔行扫描线上的信号进行比较来检查运动补偿的可靠性，以及设置来自第一和第二内插信号发生器的信号的选择，其中隔行扫描信号被转换为渐进 通过设置阈值使得阈值随着检测运动矢量中的重新搜索的块的数量的增加而变小。

公开(公告)号：US07382414B2

公开(公告)日：2008-06-03

申请号：US10998163

申请日：2004-11-29

申请人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

发明人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

IPC分类号： H04N5/21 ,  H04N5/52

CPC分类号： H04N5/57 ,  H04N5/208 ,  H04N21/4318 ,  H04N21/44008

摘要： A video signal processing apparatus includes a characteristic detection circuit for detecting luminance distribution corresponding to one frame of a video signal, a contrast compensation circuit for compensating contrast of the video signal, an edge compensation circuit for compensating an edge portion of the video signal, and a control circuit for determining a luminance range to be controlled on the basis of the luminance distribution detected by the characteristic detection circuit, and controlling the contrast compensation circuit and edge compensation circuit to conduct predetermined compensation on the video signal belonging to the luminance range. The control circuit controls the contrast compensation circuit to increase contrast for the video signal in the luminance range as compared with the video signal in other regions, and controls the edge compensation circuit to make an edge compensation quantity for the video signal in the luminance range smaller as compared with other regions.

摘要翻译： 视频信号处理装置包括用于检测对应于视频信号的一帧的亮度分布的特性检测电路，用于补偿视频信号的对比度的对比度补偿电路，补偿视频信号的边缘部分的边缘补偿电路，以及 控制电路，用于基于由特性检测电路检测的亮度分布来确定要被控制的亮度范围，并且控制对比度补偿电路和边缘补偿电路对属于亮度范围的视频信号进行预定的补偿。 控制电路控制对比度补偿电路，以增加与其他区域的视频信号相比在亮度范围内的视频信号的对比度，并且控制边缘补偿电路使亮度范围内的视频信号的边缘补偿量变小 与其他地区相比。

公开(公告)号：US20060274204A1

公开(公告)日：2006-12-07

申请号：US11444508

申请日：2006-06-01

申请人： Katsunobu Kimura ,  Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata ,  Masaaki Matsukawa

发明人： Katsunobu Kimura ,  Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata ,  Masaaki Matsukawa

IPC分类号： H04N7/01 ,  H04N5/46

CPC分类号： H04N5/208 ,  H04N5/46 ,  H04N9/643 ,  H04N9/68 ,  H04N19/186 ,  H04N19/80 ,  H04N19/85 ,  H04N21/4318 ,  H04N21/4348 ,  H04N21/440218 ,  H04N21/4828

摘要： A picture display technique carries out an adjustment of image quality of an inputted picture signal in response to a type of the inputted picture signal, e.g., a type of a first picture signal into which a second picture signal, having fewer scanning lines than that of the first picture signal, is converted, and an original type of the first picture signal, and then displays a picture of an adjusted picture signal on a display device. Further, the adjustment of the picture quality may include at least one of hue correction of the inputted picture signal in a certain hue range and chroma correction of the inputted picture signal in a certain chroma range. The adjustment of the picture quality may also include a contour correction of the inputted picture signal.

摘要翻译： 图像显示技术响应于所输入的图像信号的类型，例如第一图像信号的类型，对输入的图像信号的图像质量进行调整，第二图像信号的扫描线数小于 第一图像信号和第一图像信号的原始类型，然后在显示装置上显示经调整的图像信号的图像。 此外，图像质量的调整可以包括在某个色相范围内的输入图像信号的色调校正和在某个色度范围内输入的图像信号的色度校正中的至少一个。 图像质量的调整还可以包括输入的图像信号的轮廓校正。

公开(公告)号：US20050128358A1

公开(公告)日：2005-06-16

申请号：US10998163

申请日：2004-11-29

申请人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

发明人： Mitsuo Nakajima ,  Yasutaka Tsuru ,  Takaaki Matono ,  Haruki Takata

IPC分类号： H04N5/208 ,  H04N5/57

CPC分类号： H04N5/57 ,  H04N5/208 ,  H04N21/4318 ,  H04N21/44008

摘要： A video signal processing apparatus includes a characteristic detection circuit for detecting luminance distribution corresponding to one frame of a video signal, a contrast compensation circuit for compensating contrast of the video signal, an edge compensation circuit for compensating an edge portion of the video signal, and a control circuit for determining a luminance range to be controlled on the basis of the luminance distribution detected by the characteristic detection circuit, and controlling the contrast compensation circuit and edge compensation circuit to conduct predetermined compensation on the video signal belonging to the luminance range. The control circuit controls the contrast compensation circuit to increase contrast for the video signal in the luminance range as compared with the video signal in other regions, and controls the edge compensation circuit to make an edge compensation quantity for the video signal in the luminance range smaller as compared with other regions.

摘要翻译： 视频信号处理装置包括用于检测对应于视频信号的一帧的亮度分布的特性检测电路，用于补偿视频信号的对比度的对比度补偿电路，补偿视频信号的边缘部分的边缘补偿电路，以及 控制电路，用于基于由特性检测电路检测的亮度分布来确定要被控制的亮度范围，并且控制对比度补偿电路和边缘补偿电路对属于亮度范围的视频信号进行预定的补偿。 控制电路控制对比度补偿电路，以增加与其他区域的视频信号相比在亮度范围内的视频信号的对比度，并且控制边缘补偿电路使亮度范围内的视频信号的边缘补偿量变小 与其他地区相比。

公开(公告)号：US07916214B2

公开(公告)日：2011-03-29

申请号：US11444508

申请日：2006-06-01

申请人： Katsunobu Kimura ,  Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata ,  Masaaki Matsukawa

发明人： Katsunobu Kimura ,  Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata ,  Masaaki Matsukawa

IPC分类号： H04N7/01

CPC分类号： H04N5/208 ,  H04N5/46 ,  H04N9/643 ,  H04N9/68 ,  H04N19/186 ,  H04N19/80 ,  H04N19/85 ,  H04N21/4318 ,  H04N21/4348 ,  H04N21/440218 ,  H04N21/4828

摘要： A picture display technique carries out an adjustment of image quality of an inputted picture signal in response to a type of the inputted picture signal, e.g., a type of a first picture signal into which a second picture signal, having fewer scanning lines than that of the first picture signal, is converted, and an original type of the first picture signal, and then displays a picture of an adjusted picture signal on a display device. Further, the adjustment of the picture quality may include at least one of hue correction of the inputted picture signal in a certain hue range and chroma correction of the inputted picture signal in a certain chroma range. The adjustment of the picture quality may also include a contour correction of the inputted picture signal.

摘要翻译： 图像显示技术响应于所输入的图像信号的类型，例如第一图像信号的类型，对输入的图像信号的图像质量进行调整，第二图像信号的扫描线数小于 第一图像信号和第一图像信号的原始类型，然后在显示装置上显示经调整的图像信号的图像。 此外，图像质量的调整可以包括在某个色相范围内的输入图像信号的色调校正和在某个色度范围内输入的图像信号的色度校正中的至少一个。 图像质量的调整还可以包括输入的图像信号的轮廓校正。

公开(公告)号：US07450182B2

公开(公告)日：2008-11-11

申请号：US11060423

申请日：2005-02-18

申请人： Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata

发明人： Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata

IPC分类号： H04N7/12

CPC分类号： H04N7/0115 ,  H04N5/208 ,  H04N7/012 ,  H04N19/117 ,  H04N19/159 ,  H04N19/172

摘要： An image display apparatus is provided for receiving a digital image signal and displaying it so that high-quality images can be displayed with the noise reduced not to be conspicuous and with the contour appropriately corrected. The image display apparatus includes an input unit to which the digital image signal is applied, an information detection/separation circuit which detects and separates frame encoding information and bit rate information from the digital image signal, a picture quality correcting unit which makes contour correction/noise reduction process on the digital image signal, and a control circuit. The control circuit controls the picture-quality correcting unit to make the above process by using the frame encoding information and bit rate information from the information detection/separation circuit.

摘要翻译： 提供一种用于接收数字图像信号并显示它的图像显示装置，使得可以以不显眼的噪点并且适当地校正轮廓来显示高质量图像。 图像显示装置包括：应用数字图像信号的输入单元，从数字图像信号中检测并分离帧编码信息和比特率信息的信息检测/分离电路;图像质量校正单元，其进行轮廓校正/ 数字图像信号的降噪处理以及控制电路。 控制电路通过使用来自信息检测/分离电路的帧编码信息和比特率信息来控制图像质量校正单元进行上述处理。

公开(公告)号：US20060098743A1

公开(公告)日：2006-05-11

申请号：US11060423

申请日：2005-02-18

申请人： Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata

发明人： Mitsuo Nakajima ,  Yoshiaki Mizuhashi ,  Haruki Takata

IPC分类号： H04B1/66

CPC分类号： H04N7/0115 ,  H04N5/208 ,  H04N7/012 ,  H04N19/117 ,  H04N19/159 ,  H04N19/172

摘要： An image display apparatus is provided for receiving a digital image signal and displaying it so that high-quality images can be displayed with the noise reduced not to be conspicuous and with the contour appropriately corrected. The image display apparatus includes an input unit to which the digital image signal is applied, an information detection/separation circuit which detects and separates frame encoding information and bit rate information from the digital image signal, a picture quality correcting unit which makes contour correction/noise reduction process on the digital image signal, and a control circuit. The control circuit controls the picture-quality correcting unit to make the above process by using the frame encoding information and bit rate information from the information detection/separation circuit.

摘要翻译： 提供一种用于接收数字图像信号并显示它的图像显示装置，使得可以以不显眼的噪点并且适当地校正轮廓来显示高质量图像。 图像显示装置包括：应用数字图像信号的输入单元，从数字图像信号中检测并分离帧编码信息和比特率信息的信息检测/分离电路;图像质量校正单元，其进行轮廓校正/ 数字图像信号的降噪处理以及控制电路。 控制电路通过使用来自信息检测/分离电路的帧编码信息和比特率信息来控制图像质量校正单元进行上述处理。

公开(公告)号：US06195132B1

公开(公告)日：2001-02-27

申请号：US09345489

申请日：1999-07-01

申请人： Katsunobu Kimura ,  Takaaki Matono ,  Haruki Takata ,  Tatsuo Nagata ,  Masato Sugiyama ,  Yasutaka Tsuru ,  Koichi Sudo

发明人： Katsunobu Kimura ,  Takaaki Matono ,  Haruki Takata ,  Tatsuo Nagata ,  Masato Sugiyama ,  Yasutaka Tsuru ,  Koichi Sudo

IPC分类号： H04N521

CPC分类号： H04N5/21

摘要： A noise reduction signal processing apparatus for reducing noises accurately, such as for use in a display apparatus for displaying a video signal, has a median filter (40) which receives the video signal, and which executes a filter processing on the inputted video signal and outputs a reference signal; a subtracter (50) which is connected with the median filter (40), and which outputs a difference signal that indicates a difference between a reference signal outputted from the median filter (40) and the video signal; a minimum value detection circuit (70) which outputs the difference signal from the subtracter (50) or a limitation value, whichever is smaller, as a minimum value signal; and an adder (35) which adds a noise reduction signal obtained on the basis of the minimum value signal output from the minimum value detection circuit (70) and the video signal.

摘要翻译： 用于在用于显示视频信号的显示装置中使用的用于降低噪声的噪声降低信号处理装置具有接收视频信号的中值滤波器（40），并对输入的视频信号执行滤波处理， 输出参考信号; 与所述中值滤波器连接的减法器，其输出表示从所述中值滤波器输出的参考信号与所述视频信号之间的差的差分信号; 输出来自减法器（50）的差分信号或限制值（较小者）的最小值检测电路（70）作为最小值信号; 以及加法器（35），其添加基于从最小值检测电路（70）输出的最小值信号获得的噪声降低信号和视频信号。