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31. 发明专利

JP2011034396A Image reproduction apparatus and image recording and reproduction apparatus 有权
标题翻译：图像再现装置和图像记录和再现装置
公开(公告)号：JP2011034396A
公开(公告)日：2011-02-17
申请号：JP2009180689
申请日：2009-08-03
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KAI TOSHIHIRO , MORIYA SHOTARO , YAMANAKA SATOSHI , MINAMI KOJI , SUGIURA HIROAKI
IPC分类号： G06T5/20 , G06T3/40 , H04N1/409 , H04N5/92 , H04N19/00 , H04N19/102 , H04N19/117 , H04N19/136 , H04N19/423 , H04N19/80 , H04N19/85
摘要： PROBLEM TO BE SOLVED: To sufficiently apply a highlighting process even if an image reproduction signal does not sufficiently include a high frequency component due to compressed image data recorded on a recording medium. SOLUTION: Image data recorded on the recording medium 3 is reproduced by access means 12, and a decompression process is performed by a decompression unit 19 to produce an image reproduction signal. Signal processing means 11 generates a first intermediate image including components around a prescribed frequency band of the image reproduction signal. The first intermediate image is subjected to a nonlinear process to generate a high frequency component. The high frequency component is added to the first intermediate image to generate a second intermediate image. The second intermediate image is added to the image reproduction signal and the added result is output. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使图像再现信号由于记录在记录介质上的压缩图像数据而不能充分地包括高频分量，也能够充分地应用高亮处理。解决方案：记录介质3上记录的图像数据由存取装置12再现，解压缩处理由解压缩单元19执行以产生图像再现信号。信号处理装置11产生包括图像再现信号的规定频带周围的分量的第一中间图像。对第一中间图像进行非线性处理以产生高频分量。将高频分量添加到第一中间图像以产生第二中间图像。将第二中间图像添加到图像再现信号中，并输出相加的结果。版权所有（C）2011，JPO＆INPIT

32. 发明专利

JP2010011482A Noise eliminating apparatus, noise eliminating method, and video signal display 有权
标题翻译：噪声消除装置，噪声消除方法和视频信号显示
公开(公告)号：JP2010011482A
公开(公告)日：2010-01-14
申请号：JP2009229416
申请日：2009-10-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ASAMURA MASAKO , MINAMI KOJI , SAKUWA CHIHIRO , KAI TOSHIHIRO
IPC分类号： H04N5/21
摘要： PROBLEM TO BE SOLVED: To provide: a noise eliminating apparatus capable of detecting a motion even from video signals with a high noise component value without misdetection, reducing tailing and after-image, and obtaining an excellent noise elimination effect; a noise eliminating method; and a video signal display. SOLUTION: A noise eliminating apparatus includes: a subtraction means 12 for outputting a frame difference between frames of the video signals; a motion detection means 20 for outputting a motion detection signal denoting a motion amount of the video signals included in the frame difference; a noise decision means 30 for deciding a noise component in the frame difference to output a noise decision result; a motion degree generating means 19 for generating a motion degree signal denoting the degree of motion by subtracting the noise decision result from the motion detection signal; a coefficient conversion means 16 for receiving the motion degree signal and converting it into a circulation coefficient changed with the motion degree signal; a multiplier means 17 for obtaining a noise circulation amount; and an arithmetic means 18 for obtaining the video signals from which noise is eliminated through addition/subtraction between the noise circulation amount and the video signal of the present frame. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种噪声消除装置，其能够即使从具有高噪声分量值的视频信号中检测运动而没有错误检测，减少拖尾和后图像，并获得优异的噪声消除效果; 噪声消除方法; 和视频信号显示。解决方案：噪声消除装置包括：减法装置12，用于输出视频信号的帧之间的帧差; 运动检测装置20，用于输出表示包括在帧差中的视频信号的运动量的运动检测信号; 用于确定帧差中的噪声分量以输出噪声判定结果的噪声判定装置30; 运动度生成装置19，用于通过从运动检测信号中减去噪声判定结果来产生表示运动程度的运动度信号; 系数转换装置16，用于接收运动度信号并将其转换成用运动度信号改变的循环系数; 用于获得噪声循环量的乘法器装置17; 以及算术装置18，用于通过噪声循环量和当前帧的视频信号之间的相加/减除来获得消除噪声的视频信号。版权所有（C）2010，JPO＆INPIT

33. 发明专利

JP2008193462A Frame interpolation apparatus and frame interpolation method 有权
标题翻译：框架插值装置和框架插值方法
公开(公告)号：JP2008193462A
公开(公告)日：2008-08-21
申请号：JP2007026548
申请日：2007-02-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUJIWARA TAKU , MINAMI KOJI , KAI TOSHIHIRO , YASUI HIRONOBU
IPC分类号： H04N7/01
摘要： PROBLEM TO BE SOLVED: To provide a frame interpolation apparatus for generating an image of interpolation frame between two frames without causing blur in motion picture and judder. SOLUTION: The frame interpolation apparatus is provided with a similarity calculator for calculating the similarity for each pixel block pair comprising a pixel block BLa of a first reference frame a point-symmetrical with respect to an interpolation pixel in an interpolation frame and a pixel block BLb of a second reference frame; a reference block selector for selecting a pixel block pair having the greatest similarity as a candidate block pair, and selecting a pixel block pair having the greatest similarity from among the pixel block pairs other than a pixel block having the positional relation with respect to the interpolation pixel similar to that of the candidate block as an evaluation block pair, and deciding whether the center position of the candidate block pair is selected as a reference pixel position or the reference pixel position selected one frame before is selected on the basis of the similarity between the candidate block pair and a block pair for evaluation. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种帧内插装置，用于在两帧之间产生插值帧的图像而不引起运动图像和抖动的模糊。解决方案：帧内插装置设置有相似度计算器，用于计算每个像素块对的相似度，该像素块对包括相对于内插帧中的内插像素点对称的第一参考帧的像素块BLa和第二参考帧的像素块BLb; 用于选择具有最大相似度的像素块对作为候选块对的参考块选择器，并且从除了具有与插值的位置关系的像素块之外的像素块对中具有最大相似性的像素块对像素类似于作为评估块对的候选块的像素，并且确定候选块对的中心位置是否被选择为参考像素位置，或者基于第一帧之前选择的参考像素位置，基于候选块对和用于评估的块对。版权所有（C）2008，JPO＆INPIT

34. 发明专利

JP2007274067A Noise eliminating apparatus, noise eliminating method, and video signal display 审中-公开
标题翻译：噪声消除装置，噪声消除方法和视频信号显示
公开(公告)号：JP2007274067A
公开(公告)日：2007-10-18
申请号：JP2006094078
申请日：2006-03-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ASAMURA MASAKO , MINAMI KOJI , SAKUWA CHIHIRO , KAI TOSHIHIRO
IPC分类号： H04N5/21 , G06T5/00 , H04N1/409
CPC分类号： H04N5/21 , H04N5/144
摘要： PROBLEM TO BE SOLVED: To provide a noise eliminating apparatus, a noise eliminating method, and a video signal display capable of detecting a motion even from video signals with a high noise component value without misdetection, reducing tailing and after-image, and obtaining an excellent noise elimination effect. SOLUTION: The noise eliminating apparatus includes: a subtraction means 12 for outputting a frame difference between frames of the video signals; a motion detection means 20 for outputting a motion detection signal denoting a motion amount of the video signals included in the frame difference; a noise discrimination means 30 for discriminating a noise component in the frame difference to output a noise discrimination result; a motion degree generating means 19 for generating a motion degree signal denoting the degree of motion by subtracting the noise discrimination result from the motion detection signal; a coefficient conversion means 16 for receiving the motion degree signal and converting it into a circulation coefficient changed with the motion degree signal; a multiplier means 17 for obtaining a noise circulation amount; and an arithmetic means 18 for obtaining the video signals from which noise is eliminated through addition/subtraction between the noise circulation amount and the video signal of the present frame. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种噪声消除装置，噪声消除方法和能够即使从具有高噪声分量值的视频信号中检测运动而没有错误检测的视频信号显示，减少拖尾和后图像，并获得出色的噪音消除效果。解决方案：噪声消除装置包括：减法装置12，用于输出视频信号的帧之间的帧差; 运动检测装置20，用于输出表示包括在帧差中的视频信号的运动量的运动检测信号; 用于识别帧差中的噪声分量的噪声鉴别装置30，以输出噪声鉴别结果; 运动度生成装置19，用于通过从运动检测信号中减去噪声识别结果来生成表示运动程度的运动度信号; 系数转换装置16，用于接收运动度信号并将其转换成用运动度信号改变的循环系数; 用于获得噪声循环量的乘法器装置17; 以及算术装置18，用于通过噪声循环量和当前帧的视频信号之间的相加/减除来获得消除噪声的视频信号。版权所有（C）2008，JPO＆INPIT

35. 发明专利

JP2006094257A Video signal processing apparatus and method, and video signal display device 有权
标题翻译：视频信号处理装置和方法以及视频信号显示装置
公开(公告)号：JP2006094257A
公开(公告)日：2006-04-06
申请号：JP2004278889
申请日：2004-09-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ASAMURA MASAKO , MINAMI KOJI , SAKUWA CHIHIRO , KAI TOSHIHIRO
IPC分类号： H04N7/01
CPC分类号： H04N7/0115 , H04N7/012
摘要： PROBLEM TO BE SOLVED: To provide a video signal processing apparatus and method and video signal display device in which image quality deterioration caused by a combing phenomenon can be prevented when converting a jump scan video signal into a progressive scan video signal. SOLUTION: There are included: a correlation detecting means 120 for generating a signal cnt indicating a strength of frame correlation of a video signal; a sequence detecting means 14 for generating a telecine sequence detecting signal tci 0 indicating whether or not the video signal fulfills telecine sequence repetition conditions; an appearance frequency detecting means 15 for generating a flag tciflg relating to an appearance frequency of a telecine sequence; a predictive control means 16 for outputting a telecine detecting signal tci on the basis of the telecine sequence detecting signal tci 0 and the predictive control flag tciflg; an interpolation signal generating means 110 for selecting any one of a plurality of kinds of interpolation signals Im, It based on the telecine detecting signal tci; and a double-speed conversion means 9 for generating a progressive scan video signal Prog from a delayed video signal R and an interpolation signal I. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种视频信号处理装置和方法以及视频信号显示装置，其中当将跳跃扫描视频信号转换成逐行扫描视频信号时，可以防止由精梳现象引起的图像质量恶化。包括：相关检测装置120，用于产生指示视频信号的帧相关强度的信号cnt; 用于产生指示视频信号是否满足电视电影序列重复条件的电视电影序列检测信号tci 0 的序列检测装置14; 出现频率检测装置15，用于产生与电视电影序列的出现频率有关的标志tciflg; 预测控制装置16，用于根据电视电影序列检测信号tci＆lt; SB＆gt;和预测控制标志tciflg输出电视电影检测信号tci; 内插信号发生装置110，用于根据电视电影检测信号tci选择多种插值信号Im，It中的任何一种; 以及用于从延迟视频信号R和内插信号I产生逐行扫描视频信号Prog的双速转换装置9.（C）2006，JPO和NCIPI

36. 发明专利

JP2003143438A DEVICE AND METHOD FOR IMAGE PROCESSING 审中-公开
公开(公告)号：JP2003143438A
公开(公告)日：2003-05-16
申请号：JP2001338916
申请日：2001-11-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAI TOSHIHIRO , OKUNO YOSHIAKI , SOMEYA JUN , YAMAKAWA MASAKI
IPC分类号： H04N5/202 , H04N5/20 , H04N5/243
摘要： PROBLEM TO BE SOLVED: To reduce total capacity of a ROM that is for compensation for black level and white level of a digitized luminance signal. SOLUTION: This device comprises a comparator (1) that compares a digitized input luminance signal with a specified threshold, a first switching means (2) that selects one out of the input luminance signal and a data created by inverting the input luminance signal with a NOT gate (3), a ROM (4), a multiplier (5) that multiplies an output signal of the ROM (4) and a weighted signal together to output the result of multiplication as a compensation value, a subtracter (6) that subtracts the compensation value from the input luminance signal, an adder (7) that adds the compensation value to the input luminance signal, and a second switching means (8) that selects one out of the output of the subtracter (6) and that of the adder (7).

37. 发明专利

JP2002209122A VIDEO SIGNAL PROCESSOR 失效
公开(公告)号：JP2002209122A
公开(公告)日：2002-07-26
申请号：JP2001004600
申请日：2001-01-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAI TOSHIHIRO
IPC分类号： H04N5/16 , G09G5/00
摘要： PROBLEM TO BE SOLVED: To reduce the capacity of the memory of a digital circuit for correcting the black level of a digital luminance signal. SOLUTION: A video signal processor for correcting the black level of a digital luminance signal included in a digital video signal is provided with a memory means (1) in which input/output character data for nonlinearly converting the digital luminance signal to be inputted, a comparing means (2) for comparing the value of the digital luminance signal to be inputted with the first fixed value, a switching means (3) for selecting one of the value of the nonlinearly converted digital luminance signal outputted from the means 1 and the second fixed value according to the comparing result of the means (2) and outputting it, and a multiplying means (4) for multiplying the output of the switching means and the digital luminance signal to be inputted.

38. 发明专利

JP2001186474A DIGITAL SIGNAL RECORDING DEVICE AND REPRODUCING DEVICE 失效
公开(公告)号：JP2001186474A
公开(公告)日：2001-07-06
申请号：JP36974199
申请日：1999-12-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAI TOSHIHIRO , ASAMURA MASAKO , KOSAKA HIDEAKI , MIMURA YOSHIAKI
IPC分类号： H04N5/783 , G11B20/10 , G11B20/12 , H04N5/92 , H04N19/107 , H04N19/146 , H04N19/177 , H04N19/196 , H04N19/423 , H04N19/46 , H04N19/50 , H04N19/65 , H04N19/70 , H04N7/32
摘要： PROBLEM TO BE SOLVED: To resolve such a problem that special reproduction is not realized only by data which is encoded by inter-frame prediction since a special reproducing method or picture quality are greatly different in between two cases, i.e., when data to be sued as special reproduction data is encoded without using inter-frame prediction and when the data is encoded by inter-frame prediction. SOLUTION: Data obtained by encoding compression animation data without using inter-frame prediction and data encoded by inter-frame prediction are recorded as a special reproduction digital signal together. One of data encoded without using inter-frame prediction for the case of speed change reproduction and data encoded by inter-frame prediction is selected. Then it is recorded by multiplexing with normal data so as to be recorded at a fixed position in a direction along a recording rack on a recording medium.

39. 发明专利

JP2000333201A LUMINANCE SIGNAL CHROMINANCE SIGNAL SEPARATION CIRCUIT 失效
公开(公告)号：JP2000333201A
公开(公告)日：2000-11-30
申请号：JP13541299
申请日：1999-05-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAI TOSHIHIRO , KOJIMA MASANORI
IPC分类号： H04N9/78
摘要： PROBLEM TO BE SOLVED: To obtain a luminance signal chrominance signal separation circuit where no dot disturbance takes place even when a color transient is laterally in existence or chrominance signals are changed between lines. SOLUTION: This luminance signal chrominance signal separation circuit is provided with a color signal extract filter 101 with a variable pass band that extracts a chrominance signal from a composite video signal v, a luminance signal extraction filter 701 that subtracts a color output from the signal (v) to obtain a luminance output, a longitudinal dot frequency component extract filter 201 that extracts a longitudinal dot component around 1/2 of a line correlation frequency and around 2/3 of a chrominance carrier frequency from the signal (v), a nonlinear lateral dot frequency component extract filter 301 that extracts a lateral dot component around 1/4 of the line correlation frequency and around the chrominance carrier frequency from the signal (v), a reference signal extract device 501 that extracts a prescribed frequency component of the signal (v), and a comparator 601 that obtains a comparison output between the longitudinal dot component and the reference component. When this comparison output includes many of the longitudinal dot components, the pass band of the chrominance signal extract filter 101 is switched to include the longitudinal dot frequency region.

40. 发明专利

JP2000023108A SCAN CONVERTER DEVICE 失效
公开(公告)号：JP2000023108A
公开(公告)日：2000-01-21
申请号：JP18756298
申请日：1998-07-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAI TOSHIHIRO , KUMANO MAKOTO , KISHIMA JUNKO , KOJIMA MASANORI
IPC分类号： H04N7/01 , G06T1/60
摘要： PROBLEM TO BE SOLVED: To provide a scan converter device in which a jitter is difficult to become visible even when a horizontal synchronizing signal and a clock are asynchronous by obtaining a time difference between the horizontal synchronous signal and a clock and correcting an amplitude in accordance with a time shift by straight line interpolating the time difference from inclination of a horizontal delayer output. SOLUTION: An interpolation means 110 receives a signal from a time difference generation means 100 for obtaining a time difference between a clock by a first clock surface 30 and a horizontal synchronizing signal by a first horizontal synchronizing signal generation means 40 and is outputted to a line memory 70. A time difference detection means output of the time difference generation means 100 is delayed by a compensation delay time by a delay means and is outputted. Thus, the time difference between a CLW and a HSW to be used at the interpolation means 110 is obtained. Since the interpolation means 110 output to be inputted to the line memory 70 is amplitude corrected in accordance with a time shift, a jitter component can be reduced in a signal read out by the line memory 70.

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