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1. 发明授权

US11153466B2 Video display apparatus and video display method 有权
公开(公告)号：US11153466B2
公开(公告)日：2021-10-19
申请号：US16331464
申请日：2018-02-26
申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
发明人： Masaya Yamamoto , Masayuki Kozuka , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
IPC分类号： G06T5/00 , G06T5/20 , H04N9/793 , H04N5/20 , H04N5/445 , H04N21/431 , H04N21/4402 , H04N9/82 , H04N5/66 , H04N21/47
摘要： A video display apparatus includes: a tone mapping processor that performs a tone mapping process of converting a luminance of a video by using conversion characteristics according to a maximum luminance of the video; and a display that displays the video that has undergone the tone mapping process. The tone mapping processor switches between a first tone mapping process of dynamically changing the conversion characteristics according to a time-dependent change in the maximum luminance of the video and a second tone mapping process that is performed using constant conversion characteristics irrespective of the time-dependent change in the maximum luminance of the video.

2. 发明授权

US10582176B2 Method and structure for generating picture compensation signal, and restoring system 有权
公开(公告)号：US10582176B2
公开(公告)日：2020-03-03
申请号：US15745426
申请日：2017-12-21
申请人： HKC Corporation Limited , Chongqing HKC Optoelectronics Technology Co., Ltd.
发明人： Bin Qiu
IPC分类号： H04N1/56 , H04N1/60 , H04N5/243 , H04N5/57 , H04N9/64 , H04N9/77 , H04N9/73 , H04N9/793 , H04N5/235
摘要： This application relates to a method and a structure for generating a picture compensation signal, and a restoring system. A center luminance value is obtained by means of an image capturing device; then a grayscale percentage value is set by means of a calculating module, and luminance is adjusted according to the grayscale percentage value; a luminance value is obtained by means of the image capturing device according to the grayscale percentage value; a luminance difference value is obtained by means of a luminance difference detection module; and whether the luminance difference value is less than a default value is determined by a difference determining module; if the luminance difference value is less than the default value, a grayscale percentage value is reduced by the calculating module, and comparison again; and if the luminance difference value exceeds the default value, a sampling grayscale is obtained by a processing module.

3. 发明授权

US10469817B2 Reproduction device, reproduction method, and recording medium 有权
公开(公告)号：US10469817B2
公开(公告)日：2019-11-05
申请号：US16385206
申请日：2019-04-16
申请人： SONY CORPORATION
发明人： Kouichi Uchimura , Ryohei Takahashi
IPC分类号： G11B20/10 , H04N9/793 , H04N9/87 , H04N9/82 , H04N5/76 , G11B27/32 , G11B27/10 , H04N19/30 , H04N19/40 , H04N19/46
摘要： The present technology relates to a reproduction device, a reproduction method, and a recording medium capable of displaying graphics with a broader dynamic range of luminance and appropriate brightness.An optical disc records STN_table associating HDR graphics, which are graphics having a second luminance range different from and broader than a first luminance range, with tone_mapping_info including HDR information indicating a luminance characteristic of the HDR graphics and tone_mapping_info, which is tone mapping definition information used when luminance conversion from the HDR graphics to STD graphics which are graphics having the first luminance range is performed, the HDR graphics, and the tone_mapping_info. The present technology is applicable to a recording medium recording graphics.

4. 发明申请

US20190222818A1 VIDEO DISPLAY APPARATUS AND VIDEO DISPLAY METHOD 审中-公开
公开(公告)号：US20190222818A1
公开(公告)日：2019-07-18
申请号：US16331464
申请日：2018-02-26
申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
发明人： Masaya YAMAMOTO , Masayuki KOZUKA , Yoshiichiro KASHIWAGI , Toshiroh NISHIO , Kazuhiko KOUNO , Hiroshi YAHATA , Takeshi HIROTA , Yoshihiro MORI
IPC分类号： H04N9/793 , G06T5/00 , G06T5/20
CPC分类号： H04N5/20 , G06T5/009 , G06T5/20 , G06T2207/20208 , H04N5/44504 , H04N5/44543 , H04N5/66 , H04N9/793 , H04N21/431
摘要： A video display apparatus includes: a tone mapping processor that performs a tone mapping process of converting a luminance of a video by using conversion characteristics according to a maximum luminance of the video; and a display that displays the video that has undergone the tone mapping process. The tone mapping processor switches between a first tone mapping process of dynamically changing the conversion characteristics according to a time-dependent change in the maximum luminance of the video and a second tone mapping process that is performed using constant conversion characteristics irrespective of the time-dependent change in the maximum luminance of the video.

5. 发明申请

US20170332060A1 IMAGE PROCESSING METHOD FOR LOCALLY ADJUSTING IMAGE DATA OF REAL-TIME IMAGE 有权
公开(公告)号：US20170332060A1
公开(公告)日：2017-11-16
申请号：US15151507
申请日：2016-05-11
申请人： MEDIATEK INC.
发明人： Cheng-Che Chan , Hung-Wei Chih , Chung-Yao Hung , Cheng-Che Chen
IPC分类号： H04N9/64 , H04N9/793 , G06T5/00 , H04N5/232
CPC分类号： H04N9/646 , G06T5/008 , G06T5/50 , G06T7/408 , G06T7/90 , G06T2207/10016 , G06T2207/10144 , G06T2207/20208 , G06T2207/20216 , H04N5/20 , H04N5/23216 , H04N5/77 , H04N9/68 , H04N9/76 , H04N9/793
摘要： An image processing method is provided. The image processing method includes the following steps: blending a plurality of exposure frames captured by one or more image capturing devices using a plurality of exposure times to generate a real-time image; analyzing one or more regions of interest (ROIs) of the real-time image according to ROI information about the one or more ROIs of the real-time image, and accordingly generating an analysis result; and utilizing an image processor for referring to the analysis result to locally adjust image data within the one or more ROIs of the real-time image to generate an adjusted real-time image in real time.

6. 发明申请

US20160065927A1 VIDEO REPRODUCTION APPARATUS, VIDEO REPRODUCTION METHOD AND VIDEO DISPLAY APPARATUS 审中-公开
标题翻译：视频再现设备，视频再现方法和视频显示设备
公开(公告)号：US20160065927A1
公开(公告)日：2016-03-03
申请号：US14816954
申请日：2015-08-03
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Lifestyle Products & Services Corporation
发明人： Miki YAMADA
IPC分类号： H04N9/793 , H04N9/87 , H04N9/68
CPC分类号： H04N9/7933 , G09G5/02 , G09G2340/06 , G09G2360/16 , H04N5/775 , H04N9/68 , H04N9/8042 , H04N9/87
摘要： According to one embodiment, a video reproduction apparatus calculates two-dimensional coordinate data of an input video signal on a chromaticity diagram, compares the two-dimensional coordinate data calculated with a preset standard color gamut on the chromaticity diagram, determines based on a result of the comparison whether a color gamut corresponding to the input video signal falls within the standard color gamut, adjusts color gamut increase processing and performs the adjusted color gamut increase processing on the input video signal based on a result of the determination.
摘要翻译：根据一个实施例，视频再现装置在色度图上计算输入视频信号的二维坐标数据，将在色度图上用预设的标准色域计算的二维坐标数据进行比较，基于比较与输入视频信号相对应的色域是否落入标准色域内，调整色域增加处理，并根据确定结果对输入视频信号执行调整色域增加处理。

7. 发明申请

US20100142912A1 IMAGE DISPLAY METHODS AND SYSTEMS WITH SUB-FRAME INTENSITY COMPENSATION 有权
标题翻译：具有子框架强度补偿的图像显示方法和系统
公开(公告)号：US20100142912A1
公开(公告)日：2010-06-10
申请号：US12707126
申请日：2010-02-17
申请人： VINCENT SO
发明人： VINCENT SO
IPC分类号： H04N5/93 , H04N9/793 , G09G5/02 , H04N5/74 , G09G3/36 , H04N9/31
CPC分类号： H04N5/913 , G06T1/0085 , H04N9/3117 , H04N9/3179 , H04N19/105 , H04N19/132 , H04N19/176 , H04N19/467 , H04N19/61 , H04N21/23892 , H04N21/8358 , H04N2005/91392
摘要： Image display methods and systems are provided wherein for each of a plurality of still images of a motion picture, rendering a respective sequence of sub-frames such that in each sub-frame one or more portions of the still image is altered with the sequence of sub-frames summing to the still image, and for each pair of consecutive still images that is one of a plurality of pairs of still images of the plurality of still images of the motion picture, the pair comprises first and second consecutive still images and there is a variation in the rendering of the respective sequence of sub-frames between the first and second consecutive still images. Intensity compensation may be applied such that when sub-frames are displayed, an image substantially equivalent to the still image is perceptible.
摘要翻译：提供了图像显示方法和系统，其中对于运动图像的多个静止图像中的每一个，渲染相应的子帧序列，使得在每个子帧中，静止图像的一个或多个部分被改变为对于静止图像求和的子帧，以及作为运动图像的多个静止图像的多对静止图像之一的每对连续静止图像，该对包括第一和第二连续静止图像，并且在那里是在第一和第二连续静止图像之间的各个子帧序列的渲染的变化。可以应用强度补偿，使得当显示子帧时，基本上等于静止图像的图像是可感知的。

8. 发明授权

US5844629A Digital-to-analog video encoder with novel equalization 失效
标题翻译：具有新颖均衡的数模转换视频编码器
公开(公告)号：US5844629A
公开(公告)日：1998-12-01
申请号：US655624
申请日：1996-05-30
申请人： Brian P. Murray , Philip A. Curran , Colm J. Prendergast , Timothy J. Cummins
发明人： Brian P. Murray , Philip A. Curran , Colm J. Prendergast , Timothy J. Cummins
IPC分类号： H04N9/64 , H04N9/79 , H04N9/793 , H04N9/83 , H04N11/14 , H04N11/20
CPC分类号： H04N9/83 , H04N11/20 , H04N9/641 , H04N9/79 , H04N11/143 , H04N9/793
摘要： A digital-to-analog video encoder method and apparatus having unique equalization are disclosed. The encoder converts digital video signals into one or more analog video formats using one or more digital-to-analog converters. Equalization is provided to compensate for zero order hold effects of the digital-to-analog converters. Equalization is provided to a luminance signal and/or a chroma signal to equalize RGB, composite video, and super VHS video outputs. Multiplexed digital-to-analog converter inputs allow selection of several output formats.
摘要翻译：公开了具有独特均衡的数/模视频编码方法和装置。编码器使用一个或多个数模转换器将数字视频信号转换成一个或多个模拟视频格式。提供均衡以补偿数模转换器的零级保持效应。将亮度信号和/或色度信号提供均衡以均衡RGB，复合视频和超级VHS视频输出。多路复用数模转换器输入允许选择多种输出格式。

9. 发明授权

US5771333A Video signal emphasis and deemphasis method and apparatus 失效
标题翻译：视频信号强调和去加重方法和设备
公开(公告)号：US5771333A
公开(公告)日：1998-06-23
申请号：US705004
申请日：1996-08-29
申请人： Ryo Hirayama , Kaoru Kobayashi
发明人： Ryo Hirayama , Kaoru Kobayashi
IPC分类号： H04N5/783 , H04N5/923 , H04N5/937 , H04N9/793 , H04N9/81
CPC分类号： H04N9/7936 , H04N5/923 , H04N5/937 , H04N9/81 , H04N5/783
摘要： An input video signal is applied to a transmission line first through a time direction emphasizer for emphasizing the levels of time direction high frequency components of the video signal, relative to the levels of low frequency components thereof; secondary through a vertical direction emphasizer; and thirdly through a horizontal direction emphasizer. Further, the received video signal is outputted as an output video signal from the transmission line first through a horizontal direction deemphasizer for deemphasizing the levels of horizontal direction high frequency components of the video signal, relative to the levels of low frequency components thereof; secondary through a vertical direction deemphasizer; and thirdly through a time direction deemphasizer. The emphasis and deemphasis method enables the dynamic range of the transmission line to be utilized effectively, while preventing erroneous operation on the reception side.
摘要翻译：输入视频信号首先通过时间方向增强器施加到传输线，用于相对于其低频分量的电平强调视频信号的时间方向高频分量的电平; 通过垂直方向强调器辅助; 第三次通过水平方向加强器。此外，接收的视频信号作为来自传输线的输出视频信号首先通过水平方向去加噪器输出，用于相对于其低频分量的电平去强调视频信号的水平方向高频分量的电平; 次要通过垂直方向去加重; 第三，通过时间方向去强调。强调和去加重方法能够有效地利用传输线的动态范围，同时防止接收侧的错误操作。

10. 发明授权

US5510853A Automatic gain control circuit for stabilizing the level of a reproduced color signal 失效
标题翻译：自动增益控制电路，用于稳定再现的彩色信号的电平
公开(公告)号：US5510853A
公开(公告)日：1996-04-23
申请号：US181100
申请日：1994-01-13
申请人： Mitsumo Kawano
发明人： Mitsumo Kawano
IPC分类号： H04N5/91 , H04N9/793 , H04N5/52
CPC分类号： H04N9/793
摘要： An automatic gain control circuit for processing a reproduced color signal in a VCR which may include first and second feedback loops respectively positioned before and after a comb filter. In the first feedback loop, the color signal is amplified by a first variable gain amplifier and supplied to both a first burst detector and the comb filter via a frequency converter and a band-pass filter. The first burst detector detects the peak level of the burst signal included in the color signal and controls the gain of the first amplifier for stabilizing the level of the burst signal. The comb filter removes cross-talk components from the color signal and supplies an output signal to the second feedback loop. In the second feedback loop, the output signal is amplified by a second variable gain amplifier and supplied to a second burst detector. The second burst detector detects the level of the burst signal included in the output signal and controls the gain of the second amplifier for stabilizing the level of the output signal.
摘要翻译：一种用于处理VCR中再现的彩色信号的自动增益控制电路，其可以包括分别位于梳状滤波器之前和之后的第一和第二反馈回路。在第一反馈环路中，彩色信号由第一可变增益放大器放大，并通过频率转换器和带通滤波器提供给第一突发检测器和梳状滤波器两者。第一突发检测器检测包括在颜色信号中的突发信号的峰值电平，并且控制第一放大器的增益以稳定突发信号的电平。梳状滤波器从彩色信号中去除串扰分量，并将输出信号提供给第二反馈回路。在第二反馈环路中，输出信号被第二可变增益放大器放大并提供给第二脉冲串检测器。第二突发检测器检测包括在输出信号中的突发信号的电平，并且控制第二放大器的增益以稳定输出信号的电平。

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