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    • 5. 发明授权
    • Sub-sample transmission system for improving picture quality in motional
picture region of wide-band color picture signal
    • 子样本传输系统,用于提高宽带彩色图像信号运动图像区域的图像质量
    • US5612748A
    • 1997-03-18
    • US469425
    • 1995-06-06
    • Seiichi GohshiYoshinori IzumiMasahide NaemuraKouichi Yamaguchi
    • Seiichi GohshiYoshinori IzumiMasahide NaemuraKouichi Yamaguchi
    • H04N7/015H04N7/12H04N11/04H04N11/24H04N7/24
    • H04N11/006H04N11/048H04N7/0152H04N7/122
    • In the case where a wide-band color picture signal provided for a high-definition television broadcasting is sub-sampled for narrow-band transmission, in comparison with a stationary picture signal which is applied with sub-sampling according to a sampling pattern circulated at every two frames, the color picture signal in motional picture regions, which is conventionally applied with line-offset sub-sampling at every field, has a lowered resolution. To improve the resolution concerned, color difference signals in motional picture regions are applied with inter-field offset sub-sampling together with band-limitation for preventing aliasing distortion accompanied with subsampling and signal processing including interpolation for reproduction, which are effected in a form completed at every frame. As for motional picture regions having small motion, a luminance signal is applied also with similar sub-sampling and similar signal processing. As a result, the overall picture quality of the reproduced motional color picture is improve by signal processing thus adapted for color pictures in motional picture regions.
    • 在为高频电视广播提供的宽带彩色图像信号被子采样以用于窄带传输的情况下,与根据在 每两帧通常在每个场应用线偏移次采样的运动图像区域中的彩色图像信号具有降低的分辨率。 为了提高相关分辨率,运动图像区域中的色差信号与带限制一起应用场间偏移子采样,以防止伴随二次采样的信号失真和包括用于再现的内插的信号处理,其以完成的形式 在每一帧。 对于具有小运动的运动图像区域,也应用相似的次采样和类似的信号处理的亮度信号。 结果,再现的运动彩色图像的整体图像质量通过适用于运动图像区域中的彩色图像的信号处理而得到改善。
    • 7. 发明授权
    • Image processing system and display device
    • 图像处理系统和显示设备
    • US08654259B2
    • 2014-02-18
    • US13579046
    • 2010-12-03
    • Takaji NumaoSeiichi GohshiTakashi Mine
    • Takaji NumaoSeiichi GohshiTakashi Mine
    • H04N5/21
    • G09G3/3611H04N5/213
    • A liquid crystal display device (101) of the present invention includes an NR circuit (106) for carrying out a signal processing process in which a predetermined noise amount is added to or subtracted from data of a target pixel in accordance with a result of a comparison of signal levels between the target pixel and at least two surrounding pixels which are beside the target pixel, the NR circuit (106) adding or subtracting the predetermined noise amount to or from data of respective pixels adjacent to each other temporally or positionally in respective different signal processing processes. This allows providing a liquid crystal display device having a noise reduction effect. It is thus possible to provide a liquid crystal display device enabling less blur of an image after a noise reduction process.
    • 本发明的液晶显示装置(101)包括:NR电路(106),用于执行信号处理处理,其中根据目标像素的结果将预定噪声量加到目标像素的数据或从目标像素的数据中减去 目标像素与目标像素旁边的至少两个周围像素之间的信号电平的比较,NR电路(106)在相应的时间或位置上相邻或相对位置的相应像素的数据相加或减去预定噪声量 不同的信号处理过程。 这允许提供具有降噪效果的液晶显示装置。 因此,可以提供一种在降噪处理之后能够使图像模糊化的液晶显示装置。
    • 8. 发明申请
    • SIGNAL PROCESSING DEVICE AND CONTROL PROGRAM
    • 信号处理设备和控制程序
    • US20120314968A1
    • 2012-12-13
    • US13577953
    • 2010-11-08
    • Seiichi Gohshi
    • Seiichi Gohshi
    • G06K9/40
    • H04N5/208G06T5/003G06T2207/20201H04N5/142
    • A signal processing device (500a) subjects a signal indicative of a moving image constituted by frames to a sharpening process for the moving image, to output a signal indicative of the sharpened moving image, and includes: a motion detection section (200) for detecting motion between the frames with respect to each block region consisting of one or a plurality of adjacent pixels constituting each frame; a sharpening process section (100) for subjecting a signal indicative of an image of a block region from which motion has been detected to a nonlinear process by a nonlinear process section (102) and sharpening the signal to generate a harmonic; and a signal output section (300) for outputting, with respect to the block region from which motion has been detected, the harmonic produced by sharpening a signal indicative of a moving image of the block region, while outputting, with respect to a block region from which motion has not been detected, a signal indicative of a moving image of the block region.
    • 信号处理装置(500a)使表示由帧构成的运动图像的信号对运动图像进行锐化处理,输出表示锐化运动图像的信号,并且包括:运动检测部(200),用于检测 相对于由构成每个帧的一个或多个相邻像素组成的每个块区域的帧之间的运动; 一个锐化处理部分(100),用于通过非线性处理部分(102)对表示已经被检测到运动的块区域的图像的信号进行非线性处理,并且锐化所述信号以产生谐波; 以及信号输出部分(300),用于相对于已经检测到运动的块区域输出通过锐化表示块区域的运动图像的信号而产生的谐波,同时相对于块区域 从哪个运动未被检测到指示块区域的运动图像的信号。
    • 9. 发明申请
    • IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD
    • 图像显示装置和图像显示方法
    • US20120147067A1
    • 2012-06-14
    • US13391827
    • 2010-05-07
    • Katsuteru HashimotoSeiichi GohshiKatsuya OtoiKohji Fujiwara
    • Katsuteru HashimotoSeiichi GohshiKatsuya OtoiKohji Fujiwara
    • G09G3/36G09G5/10
    • G09G3/3413G09G3/3426G09G3/3611G09G2320/0646G09G2330/021G09G2360/16
    • In an image display device of at least one embodiment, a regional maximum detection section detects an areal maximum pixel luminance (regional maximum) on the basis of an input image. A regional mean calculation section calculates an areal mean pixel luminance (regional mean) on the basis of the input image. A data comparison section compares a control determination threshold retained in a control determination threshold storage section with the regional maximum for each area, and outputs a comparison result for that area. An LED output value calculation section sets a value corresponding to the regional maximum as an LED output value for each area with the regional maximum greater than the control determination threshold, and sets a value corresponding to the regional mean as an LED output value for each area with the regional maximum less than or equal to the control determination threshold.
    • 在至少一个实施例的图像显示装置中,区域最大检测部分基于输入图像检测面积最大像素亮度(区域最大值)。 区域平均值计算部分基于输入图像计算面积平均像素亮度(区域均值)。 数据比较部分将控制确定阈值存储部分中保留的控制确定阈值与每个区域的区域最大值进行比较,并输出该区域的比较结果。 LED输出值计算部分将区域最大值对应的值设置为具有大于控制确定阈值的区域最大值的每个区域的LED输出值,并且将与区域均值相对应的值设置为每个区域的LED输出值 区域最大值小于或等于控制确定阈值。