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    • 6. 发明申请
    • Image processing apparatus, image processing method, and computer program
    • 图像处理装置,图像处理方法和计算机程序
    • US20100104211A1
    • 2010-04-29
    • US12587715
    • 2009-10-13
    • Yoichi HirotaKiyoshi IkedaMasashi OtaToshimichi HamadaHiromasa NaganumaMakoto Tsukamoto
    • Yoichi HirotaKiyoshi IkedaMasashi OtaToshimichi HamadaHiromasa NaganumaMakoto Tsukamoto
    • G06K9/40
    • G06T5/008H04N5/57H04N7/0102H04N21/43635H04N21/44
    • An image processing apparatus includes: ΔΣ modulation means for applying ΔΣ modulation to an image; analog conversion means for converting a signal of the image, whose gradation is converted by the ΔΣ modulation means, into an analog signal; digital output means for outputting a digital signal of the image after gradation conversion; and analog output means for outputting an analog signal of the image after gradation conversion. The ΔΣ modulation means includes arithmetic means for filtering a quantization error; adding means for adding a pixel value of the image and output of the arithmetic means; quantization means for quantizing output of the adding means and outputting a quantized value; and subtracting means for calculating a difference between the output of the adding means and the quantized value. A filter coefficient for the filtering corresponding to the analog output is determined according to a frequency characteristic of the analog conversion means.
    • 图像处理装置包括:&Dgr& 调制方式适用于&Dgr& 调制到图像; 模拟转换装置,用于转换图像的信号,其灰度由&Dgr& Sgr转换; 调制方式,转换为模拟信号; 数字输出装置,用于在灰度转换之后输出图像的数字信号; 以及用于在灰度转换之后输出图像的模拟信号的模拟输出装置。 &Dgr&& 调制装置包括用于对量化误差进行滤波的运算装置; 添加用于添加图像的像素值和算术装置的输出的装置; 量化装置,用于量化加法装置的输出并输出量化值; 以及减法装置,用于计算加法装置的输出和量化值之间的差值。 根据模拟转换装置的频率特性确定用于与模拟输出对应的滤波的滤波器系数。
    • 7. 发明授权
    • Signal processing apparatus, signal processing method, and program
    • 信号处理装置,信号处理方法和程序
    • US08780273B2
    • 2014-07-15
    • US13210629
    • 2011-08-16
    • Kiyoshi IkedaToshimichi HamadaYoichi Hirota
    • Kiyoshi IkedaToshimichi HamadaYoichi Hirota
    • H04N5/202H04N9/69G03F3/08
    • H04N9/77
    • There is a signal processing apparatus, including a gamma correction circuit that performs gamma correction on an input luminance signal and generates an output luminance signal, an output-to-input ratio calculation circuit that calculates a ratio of the output luminance signal to the input luminance signal as an output-to-input ratio of a luminance signal, and a color difference correction circuit that multiplies an input color difference signal by the output-to-input ratio of the luminance signal and generates an output color difference signal. As a result, by correcting the input color difference signal using the output-to-input ratio of the luminance signal, the output color difference signal in which color difference correction has been performed in view of influence of gamma correction can be generated.
    • 存在一种信号处理装置,包括对输入亮度信号进行伽马校正并产生输出亮度信号的伽马校正电路,计算输出亮度信号与输入亮度之比的输出输入比计算电路 信号作为亮度信号的输出输入比,以及色差校正电路,其将输入色差信号乘以亮度信号的输出与输入比,并产生输出色差信号。 结果,通过使用亮度信号的输出输入比校正输入色差信号,可以产生考虑到伽马校正的影响而进行色差校正的输出色差信号。
    • 8. 发明申请
    • SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM
    • 信号处理装置,信号处理方法和程序
    • US20120050618A1
    • 2012-03-01
    • US13210629
    • 2011-08-16
    • Kiyoshi IkedaToshimichi HamadaYoichi Hirota
    • Kiyoshi IkedaToshimichi HamadaYoichi Hirota
    • H04N5/202
    • H04N9/77
    • There is a signal processing apparatus, including a gamma correction circuit that performs gamma correction on an input luminance signal and generates an output luminance signal, an output-to-input ratio calculation circuit that calculates a ratio of the output luminance signal to the input luminance signal as an output-to-input ratio of a luminance signal, and a color difference correction circuit that multiplies an input color difference signal by the output-to-input ratio of the luminance signal and generates an output color difference signal. As a result, by correcting the input color difference signal using the output-to-input ratio of the luminance signal, the output color difference signal in which color difference correction has been performed in view of influence of gamma correction can be generated.
    • 存在一种信号处理装置,包括对输入亮度信号进行伽马校正并产生输出亮度信号的伽马校正电路,计算输出亮度信号与输入亮度之比的输出输入比计算电路 信号作为亮度信号的输出输入比,以及色差校正电路,其将输入色差信号乘以亮度信号的输出与输入比,并产生输出色差信号。 结果,通过使用亮度信号的输出输入比校正输入色差信号,可以产生考虑到伽马校正的影响而进行色差校正的输出色差信号。
    • 9. 发明申请
    • IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
    • 图像处理设备,图像处理方法和程序
    • US20090027512A1
    • 2009-01-29
    • US12177478
    • 2008-07-22
    • Yoichi HirotaHiroshi Kobayashi
    • Yoichi HirotaHiroshi Kobayashi
    • H04N5/228G06K9/36
    • H04N19/577H04N19/105H04N19/109H04N19/142H04N19/179H04N19/51
    • An image processing apparatus includes the following elements. An obtaining unit obtains a first still image, a first difficulty level indicating a complexity of the first still image, a second still image, and a second difficulty level indicating a complexity of the second still image. A combining unit combines the first and second still images at a combination ratio which is changed along a time axis to generate a moving image. An encoding unit encodes the moving image. A moving-image difficulty-level calculating unit calculates a moving-image difficulty level indicating a complexity of the moving image according to the first and second difficulty levels and the combination ratio changed along the time axis. A control unit controls a characteristic of a process of encoding the moving image according to the combination ratio changed along the time axis and the moving-image difficulty level.
    • 图像处理装置包括以下要素。 获取单元获取第一静止图像,指示第一静止图像的复杂度的第一难度级别,第二静止图像和指示第二静止图像的复杂度的第二难度级别。 组合单元以沿着时间轴改变的组合比率组合第一静止图像和第二静止图像以生成运动图像。 编码单元编码运动图像。 运动图像难易度计算单元根据第一和第二难度等级以及沿着时间轴变化的组合比来计算指示运动图像的复杂度的运动图像难易度。 控制单元根据沿着时间轴变化的组合比和运动图像难易度来控制对运动图像进行编码的处理的特性。
    • 10. 发明授权
    • Signal processing device, signal processing method, and program
    • 信号处理装置,信号处理方法和程序
    • US08472742B2
    • 2013-06-25
    • US12930956
    • 2011-01-20
    • Yoichi Hirota
    • Yoichi Hirota
    • G06K9/40G06T5/00
    • G06T5/001G06T5/009H04N13/122
    • A signal processing device configured to produce a first output video signal and a second output video signal as video signals for right and left eyes in a stereoscopic video, the first and second output video signals each having a predetermined number of output gradation steps, from a first input video signal and a second input video signal, the first and second input video signals each having a predetermined number of input gradation steps. A predetermined gradation value difference is produced between the gradation values of the first output video signal and the gradation values of the second output video signal to express a higher number of gradation steps than the number of output gradation steps in the stereoscopic video.
    • 一种信号处理装置,被配置为产生第一输出视频信号和第二输出视频信号,作为立体视频中的左眼和左眼的视频信号,所述第一和第二输出视频信号各自具有预定数量的输出灰度级, 第一输入视频信号和第二输入视频信号,第一和第二输入视频信号各自具有预定数量的输入灰度级。 在第一输出视频信号的灰度值和第二输出视频信号的灰度值之间产生预定的灰度值差,以表示比立体视频中的输出灰度级数的数量更多的灰度级数。