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    • 1. 发明专利
    • Motion detection circuit and luminance signal/chrominance signal separation circuit
    • 运动检测电路和发光信号/色度信号分离电路
    • JP2007158991A
    • 2007-06-21
    • JP2005354438
    • 2005-12-08
    • Mitsubishi Electric Corp三菱電機株式会社
    • KAI TOSHIHIROASAMURA MASAKOSAKUWA CHIHIROMINAMI KOJIYAMAKAWA MASAKIAZUMA SOUICHIROMIMURA KENTARO
    • H04N9/78
    • PROBLEM TO BE SOLVED: To realize motion detection so as not to reduce detection performance while reducing required memory capacitance in motion detection for a three-dimensional YC separation circuit.
      SOLUTION: A differential (11) between a composite color television signal (VSO) and a delay signal (VS1) thereof is computed, a low frequency component and a frequency component near a color subcarrier frequency are extracted from the differential (12, 13) and these components are combined to generate a motion detecting signal (15). A high-frequency luminance component is then extracted from the composite color television signal (VSO) and a delay signal (VS1, VS1) thereof (14), the high-frequency luminance component being greater as a motion in a signal of each pixel is less or an oblique streak component formed from the detected luminance signal near the color subcarrier frequency is greater, and the motion detecting signal is reduced when the extracted high-frequency luminance component is great.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:实现运动检测,以便在三维YC分离电路的运动检测中减少所需的存储电容的同时不降低检测性能。 解决方案:计算复合彩色电视信号(VSO)和延迟信号(VS1)之间的差分(11),从差分(12)中提取低频分量和彩色副载波频率附近的频率分量 ,13)并且这些分量被组合以产生运动检测信号(15)。 然后从复合彩色电视信号(VSO)及其延迟信号(VS1,VS1)(14)中提取高频亮度分量,高频亮度分量作为每个像素的信号中的运动更大 由彩色副载波频率附近的检测到的亮度信号形成的较小的或者倾斜的条纹分量较大,并且当所提取的高频亮度分量较大时运动检测信号被减小。 版权所有(C)2007,JPO&INPIT
    • 2. 发明专利
    • Image data processing apparatus and image display apparatus
    • 图像数据处理装置和图像显示装置
    • JP2005331647A
    • 2005-12-02
    • JP2004148925
    • 2004-05-19
    • Mitsubishi Electric Corp三菱電機株式会社
    • KAI TOSHIHIROYAMAKAWA MASAKIMINAMI KOJIASAMURA MASAKOSAKUWA CHIHIRO
    • G09G3/36G09G3/20
    • PROBLEM TO BE SOLVED: To provide an image display apparatus at low cost in which a moving picture is displayed in high definition quality with a high speed response time and in which a still picture is superimposed to the moving picture by extending and processing a compressed still picture data.
      SOLUTION: When a still picture display signal for instructing that the still picture is displayed is input from outside, as a picture memory 102 is used for extending processing, a picture memory control circuit 104 stops using it for storing a digital picture data of one frame portion output from an A/D converting circuit 100 until the completion of the extending processing. A composing circuit 103 composes the digital still picture data restored by a still picture processing circuit and a digital picture data output from the A/D converting circuit.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种低成本的图像显示装置,其中以高速度响应时间以高清晰度质量显示运动图像,并且通过扩展和处理将静态图像叠加到运动图像上 压缩的静止图像数据。 解决方案:当从外部输入用于指示静止图像的静止图像显示信号时,当图像存储器102用于扩展处理时,图像存储器控制电路104停止使用它来存储数字图像数据 从A / D转换电路100输出的一个帧部分直到完成扩展处理。 合成电路103构成由静止图像处理电路恢复的数字静止图像数据和从A / D转换电路输出的数字图像数据。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Image display system, digital camera and television
    • 图像显示系统,数码相机和电视
    • JP2010103607A
    • 2010-05-06
    • JP2008270682
    • 2008-10-21
    • Mitsubishi Electric Corp三菱電機株式会社
    • SAKUWA CHIHIROMINAMI KOJIYASUI HIRONOBUSUGIURA HIROAKI
    • H04N5/93G09G5/00G09G5/02G09G5/10G09G5/36H04N5/225H04N5/91H04N101/00
    • PROBLEM TO BE SOLVED: To quickly display an electronic image captured by a digital camera on a television as an image optimum to a capturing scene.
      SOLUTION: Image data captured by a capturing unit 11a of the digital camera 1 are converted into an electronic file obtained by adding capturing information on capturing to the image data by a capturing information addition part 11b and the electronic file is stored in an image file storage part 13. The image file read out from the image file storage part 13 is converted into video data of an image size suited to a television 3 and video addition data including the capturing information by an image file conversion part 14 and the image data and the image addition data is transmitted to an image processing unit 31 in the television 3 through a data transmission cable 2. The image processing unit 31 converts the video data into display data based on the video addition data and displays the display data on an image display unit 33.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:将电视机上拍摄的电子图像快速显示为拍摄场景最佳的图像。 解决方案:由数字照相机1的拍摄单元11a拍摄的图像数据被转换成通过将拍摄信息添加到拍摄信息添加部分11b而将拍摄信息添加到图像数据而获得的电子文件,并且电子文件被存储在 图像文件存储部分13.从图像文件存储部分13读出的图像文件被转换为适合于电视机3的图像尺寸的视频数据和包括图像文件转换部分14的捕获信息的视频添加数据,并且图像 数据和图像添加数据通过数据传输电缆2发送到电视3中的图像处理单元31.图像处理单元31基于视频添加数据将视频数据转换为显示数据,并将显示数据显示在 图像显示单元33.版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Noise eliminating apparatus, noise eliminating method, and video signal display
    • 噪声消除装置,噪声消除方法和视频信号显示
    • JP2010011482A
    • 2010-01-14
    • JP2009229416
    • 2009-10-01
    • Mitsubishi Electric Corp三菱電機株式会社
    • ASAMURA MASAKOMINAMI KOJISAKUWA CHIHIROKAI TOSHIHIRO
    • H04N5/21
    • 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
    • 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
    • 5. 发明专利
    • Noise eliminating apparatus, noise eliminating method, and video signal display
    • 噪声消除装置,噪声消除方法和视频信号显示
    • JP2007274067A
    • 2007-10-18
    • JP2006094078
    • 2006-03-30
    • Mitsubishi Electric Corp三菱電機株式会社
    • ASAMURA MASAKOMINAMI KOJISAKUWA CHIHIROKAI TOSHIHIRO
    • H04N5/21G06T5/00H04N1/409
    • H04N5/21H04N5/144
    • 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
    • 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
    • 6. 发明专利
    • Video signal processing apparatus and method, and video signal display device
    • 视频信号处理装置和方法以及视频信号显示装置
    • JP2006094257A
    • 2006-04-06
    • JP2004278889
    • 2004-09-27
    • Mitsubishi Electric Corp三菱電機株式会社
    • ASAMURA MASAKOMINAMI KOJISAKUWA CHIHIROKAI TOSHIHIRO
    • H04N7/01
    • H04N7/0115H04N7/012
    • 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
    • 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< SB>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
    • 8. 发明专利
    • Gradation improving circuit and display system
    • 升级改进电路和显示系统
    • JP2008042448A
    • 2008-02-21
    • JP2006213244
    • 2006-08-04
    • Mitsubishi Electric Corp三菱電機株式会社
    • SAKUWA CHIHIROMINAMI KOJI
    • H04N5/20G09G3/20G09G3/36G09G5/00G09G5/02G09G5/36H04N5/66
    • PROBLEM TO BE SOLVED: To provide a gradation improving circuit for increasing the contrast of an image regardless of its contents through gradation corrections.
      SOLUTION: A statistic processing analyzing means 4 simplifies the statistics of a video signal 10 inputted by a statistic processing means 2, and a gradation control amount determining means 5 calculates a gradation control amount from data simplified by the statistic processing analyzing means 4 and a conversion characteristic selected by a target conversion characteristic determining means 3, and determines a gradation conversion characteristic on the basis of the gradation control amount and an output of a scene change detecting means 16.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于通过灰度校正来增加图像的对比度而不考虑其内容的灰度改善电路。 解决方案:统计处理分析装置4简化由统计处理装置2输入的视频信号10的统计,灰度控制量确定装置5根据由统计处理分析装置4简化的数据计算灰度控制量 以及由目标转换特性确定装置3选择的转换特性,并且基于灰度控制量和场景变化检测装置16的输出确定灰度转换特性。(C)2008年,JPO和INPIT
    • 9. 发明专利
    • Video signal processor, video signal processing method, and video signal display device
    • 视频信号处理器,视频信号处理方法和视频信号显示装置
    • JP2006253766A
    • 2006-09-21
    • JP2005063555
    • 2005-03-08
    • Mitsubishi Electric Corp三菱電機株式会社
    • ASAMURA MASAKOMINAMI KOJISAKUWA CHIHIROKAI TOSHIHIRO
    • H04N7/01
    • H04N7/0115H04N7/012
    • PROBLEM TO BE SOLVED: To provide a video signal processor, capable of preventing degradation of image quality due to a combing phenomenon by eliminating misdetections in sequential detection in processing for converting an interrace scan video signal converted with a 2-3 or 2-2 pulldown system to a progressive scan video signal, a video signal processing method, and to provide a video signal display device. SOLUTION: The video signal processor has a frame correlation detection means 11; a field correlation detection means 12; a field resolution determination means 13 for generating a signal filhv showing the degree of high-frequency component existing with a field; a pulldown sequence detection means 14, which generates a telecine detection signal tci, showing whether it is a telecine video signal by the 2-3 or 2-2 pulldown and a mixing ratio signal tcmix, showing a mixing ratio during interpolation; an interpolation signal generation means 110, which mixes plural kinds of interpolation signals Im, It on the basis of the telecine detection signal tci and the mixing ratio signal tcmix; and a double-speed conversion means 9 for generating the progressive scan video signal Prog from a delayed video signal R and an interpolated signal I. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种视频信号处理器,其能够通过消除在用2-3或2转换的间隔扫描视频信号的处理的处理中的顺序检测中的错误检测来防止由于梳理现象导致的图像质量的劣化 -2下拉系统到逐行扫描视频信号,视频信号处理方法,并提供视频信号显示装置。 视频信号处理器具有帧相关检测装置11; 场相关检测装置12; 场分辨率确定装置13,用于产生表示存在场的高频分量的信号的信号; 产生电视电影检测信号tci的下拉序列检测单元14,表示通过2-3或2-2下拉的电视电影视频信号和混合比信号tcmix,表示插值期间的混合比; 内插信号生成装置110,其根据电视电影检测信号tci和混合比信号tcmix混合多种内插信号Im,It; 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
    • 10. 发明专利
    • Video signal processing apparatus and video signal processing method
    • 视频信号处理设备和视频信号处理方法
    • JP2005223503A
    • 2005-08-18
    • JP2004027922
    • 2004-02-04
    • Mitsubishi Electric Corp三菱電機株式会社
    • ASAMURA MASAKOMINAMI KOJISAKUWA CHIHIROKAI TOSHIHIRO
    • H04N7/01
    • PROBLEM TO BE SOLVED: To provide the technology of carrying out excellent sequential scanning conversion by preventing image quality deterioration even when regularity of a sequence is disturbed because of the occurrence of a deviation in 2-3 pull-down phase due to an edit point or the like in the midway of a telecine video signal. SOLUTION: The video signal processing apparatus detects a correlation between a target field and the field of one preceding frame of the target field on the basis of difference information between frames, and a telecine sequence detection means 21 discriminates whether or not a video signal is the telecine video signal depending on the result of detection. When a field different from a field at a particular phase caused once per 5 fields is a still picture field, a sequence deviation detection means 22 detects it, the result of detection is utilized for the discrimination in the telecine sequence detection means, and when deviation in the 2-3 pull-down phase takes place, the operation of carrying out IP conversion on the basis of the detection of the telecine video signal is temporarily released. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供通过防止图像质量劣化即使当序列的规则性被扰乱时进行优良的顺序扫描转换的技术,因为由于在2-3下拉阶段中出现偏差 编辑点等在电视电影视频信号的中途。 解决方案:视频信号处理设备基于帧之间的差异信息来检测目标场与目标场的前一帧的场的相关性,并且电视电影序列检测装置21鉴别视频 信号是取决于检测结果的电视电影视频信号。 当与每场5场引起的特定相位的场不同的场是静止图像场时,序列偏差检测装置22检测它,将检测结果用于电视电影序列检测装置中的鉴别,并且当偏差 在2-3下拉相位发生时,暂时释放基于电视电影视频信号的检测进行IP转换的动作。 版权所有(C)2005,JPO&NCIPI