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    Dynamic range compression apparatus, dynamic range compression method, computer-readable recording medium, integrated circuit, and imaging apparatus
    31.
    发明授权
    Dynamic range compression apparatus, dynamic range compression method, computer-readable recording medium, integrated circuit, and imaging apparatus 有权
    动态范围压缩装置，动态范围压缩方法，计算机可读记录介质，集成电路和成像装置

    公开(公告)号：US08169500B2

    公开(公告)日：2012-05-01

    申请号：US12475958

    申请日：2009-06-01

    申请人： Daisuke Sato ,  Haruo Yamashita ,  Takeshi Ito

    发明人： Daisuke Sato ,  Haruo Yamashita ,  Takeshi Ito

    IPC分类号： H04N5/228 ,  H04N5/235 ,  G06K9/36

    CPC分类号： H04N5/235 ,  H04N5/20

    摘要： A dynamic range (D-range) compression apparatus that uses a look-up table (LUT) is capable of dynamic compression that compresses the peak input value to the full output range, even when image signals with variable D-ranges are inputted. According to this D-range compression apparatus, D-range compression processing that places the D-range of the image signal within a predetermined output D-range is performed by the visual processing unit converting the tone of the image signal in accordance with the surrounding average luminance signal. Furthermore, with this D-range compression apparatus, the image signal is amplified in accordance with amplification input/output conversion characteristics determined based on the peak value in the image detected by the peak detection unit, and therefore it is possible to perform a dynamic amplification processing in accordance with the peak value so that the D-range of the image signal outputted from the visual processing unit becomes a predetermined output D-range.

    摘要翻译： 使用查找表（LUT）的动态范围（D范围）压缩装置能够进行动态压缩，即使当输入具有可变D范围的图像信号时，也可以将峰值输入值压缩到全部输出范围。 根据该D档压缩装置，将图像信号的D范围设定在预定的输出D范围内的D范围压缩处理由视觉处理部根据周围的图像信号的色调 平均亮度信号。 此外，利用该D档压缩装置，根据由峰值检测单元检测到的图像中的峰值确定的放大输入/输出转换特性来放大图像信号，因此可以执行动态放大 根据峰值进行处理，使得从可视处理单元输出的图像信号的D范围变为预定的输出D范围。

    Imaging apparatus and method that reduces illumination variations by converting a luminance value of a target pixel depending on an average luminance value of pixels in the vicinity of the target pixel
    32.
    发明授权
    Imaging apparatus and method that reduces illumination variations by converting a luminance value of a target pixel depending on an average luminance value of pixels in the vicinity of the target pixel 有权
    通过根据目标像素附近的像素的平均亮度值转换目标像素的亮度来减少照射变化的成像装置和方法

    公开(公告)号：US08106954B2

    公开(公告)日：2012-01-31

    申请号：US12177644

    申请日：2008-07-22

    申请人： Daisuke Sato ,  Haruo Yamashita ,  Takeshi Ito

    发明人： Daisuke Sato ,  Haruo Yamashita ,  Takeshi Ito

    IPC分类号： H04N5/225

    CPC分类号： G03B15/03 ,  G01S17/89 ,  G06T5/50 ,  G06T7/586 ,  G06T2207/10152 ,  H04N5/262

    摘要： An imaging apparatus estimates a distance based on a reflectance value of a subject estimated with improved precision. An illumination unit illuminates a subject with illumination light. An imaging unit captures a plurality of images each under a different condition of the illumination unit. An illumination light element obtaining unit obtains an image formed with an element of the illumination light from the plurality of images. A reflectance estimation unit eliminates illumination variations from one of the plurality of images or from the image formed with the illumination light element, and estimates a reflectance of the subject corresponding to each pixel. A distance information estimation unit estimates a distance to the subject corresponding to each pixel based on the image formed with the illumination light element and the reflectance of the subject.

    摘要翻译： 成像装置基于以提高的精度估计的被摄体的反射率值来估计距离。 照明单元用照明灯照亮被摄体。 成像单元在照明单元的不同条件下捕获多个图像。 照明光元件获取单元从多个图像获得由照明光的元素形成的图像。 反射率估计单元消除从多个图像之一或与照明光元件形成的图像的照明变化，并且估计与每个像素对应的被摄体的反射率。 距离信息估计单元基于与照明光元件形成的图像和被摄体的反射率，估计与每个像素对应的被摄体的距离。

    IMAGING APPARATUS, IMAGING METHOD, INTEGRATED CIRCUIT, AND STORAGE MEDIUM
    33.
    发明申请
    IMAGING APPARATUS, IMAGING METHOD, INTEGRATED CIRCUIT, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20110317032A1

    公开(公告)日：2011-12-29

    申请号：US13222274

    申请日：2011-08-31

    申请人： Haruo Yamashita ,  Takeshi Ito ,  Daisuke Sato

    发明人： Haruo Yamashita ,  Takeshi Ito ,  Daisuke Sato

    IPC分类号： H04N5/235

    CPC分类号： H04N5/2355 ,  H04N5/2351 ,  H04N5/2352

    摘要： An imaging apparatus captures a large dynamic range image of a scene including a backlit person with a blue sky background in a manner that the person's face has an appropriate luminance level without saturating the background sky. An imaging unit obtains analogue image signals through exposure control that prevents a highlight from being saturated, an A/D converter converts the analogue image signals to digital image signals, and a signal processing unit linearly increases the dynamic range of the digital image signals. The image signals with the increased dynamic range are nonlinearly compressed to have a dynamic range of 100% or less through nonlinear dynamic range compression that intensively compresses a highlight portion. The imaging apparatus with this structure first increases the dynamic range of an image and efficiently compresses the increased large dynamic range of the image.

    VISUAL PROCESSING APPARATUS, VISUAL PROCESSING METHOD, PROGRAM, RECORDING MEDIUM, DISPLAY DEVICE, AND INTEGRATED CIRCUIT
    34.
    发明申请
    VISUAL PROCESSING APPARATUS, VISUAL PROCESSING METHOD, PROGRAM, RECORDING MEDIUM, DISPLAY DEVICE, AND INTEGRATED CIRCUIT 有权
    视觉处理设备，视觉处理方法，程序，记录介质，显示设备和集成电路

    公开(公告)号：US20110122148A1

    公开(公告)日：2011-05-26

    申请号：US13017380

    申请日：2011-01-31

    申请人： Takeshi Ito ,  Haruo Yamashita ,  Yusuke Monobe

    发明人： Takeshi Ito ,  Haruo Yamashita ,  Yusuke Monobe

    IPC分类号： G06T5/00

    CPC分类号： H04N5/142 ,  G06T5/004 ,  G06T2207/20012 ,  G06T2207/20192 ,  H04N5/20

    摘要： It is possible to inhibit side effects even when an image that has sharp edge regions has been input, using a spatial processing portion (10) outputting surrounding image information US from an input image signal, a control signal generation portion (40) outputting an effect adjustment signal MOD according to a degree of flatness of an edge proximal region, and an effect adjustment portion (20) outputting a synthesized signal MUS that is synthesized by changing a ratio of the image signal IS and the surrounding image information US according to the effect adjustment signal MOD. Further, the side effects are inhibited using a visual processing portion (30) visually processing the image signal IS based on the synthesized signal MUS and the image signal IS.

    摘要翻译： 使用从输入图像信号输出周边图像信息US的空间处理部（10），输入效果的控制信号生成部（40），即使当已经输入了具有尖锐边缘区域的图像时，也可以抑制副作用 根据边缘近侧区域的平坦度的调整信号MOD，以及输出通过根据效果改变图像信号IS和周围图像信息US的比率而合成的合成信号MUS的效果调整部（20） 调整信号MOD。 此外，使用视觉处理部分（30），基于合成信号MUS和图像信号IS视觉处理图像信号IS来禁止副作用。

    VISUAL PROCESSING DEVICE, DISPLAY DEVICE, VISUAL PROCESSING METHOD, PROGRAM, AND INTEGRATED CIRCUIT
    35.
    发明申请
    VISUAL PROCESSING DEVICE, DISPLAY DEVICE, VISUAL PROCESSING METHOD, PROGRAM, AND INTEGRATED CIRCUIT 有权
    视觉处理装置，显示装置，视觉处理方法，程序和集成电路

    公开(公告)号：US20110085085A1

    公开(公告)日：2011-04-14

    申请号：US12972769

    申请日：2010-12-20

    申请人： Haruo Yamashita ,  Takeshi Ito ,  Yusuke Monobe

    发明人： Haruo Yamashita ,  Takeshi Ito ,  Yusuke Monobe

    IPC分类号： H04N5/21

    CPC分类号： H04N1/4092 ,  G06T5/004 ,  G06T2207/20192 ,  G09G5/10 ,  G09G2320/0271

    摘要： A visual processing device, display device, visual processing method, program, and integrated circuit that change a strength of visual processing of an image in real-time. A spatial processing portion (2) creates an unsharp signal US from an input signal IS. A target level setting portion (4) sets a predetermined target level value L for setting a range according to which the strength of the visual processing is adjusted. An effect adjustment portion (5) creates a synthesized signal MUS by synthesizing the predetermined target level value L and the unsharp signal US in accordance with an effect adjustment signal MOD that has been set externally. A visual processing portion (3) outputs an output signal OS in accordance with the input signal IS and the synthesized signal MUS, making it possible to change the strength of the visual processing.

    摘要翻译： 实时改变图像的视觉处理强度的视觉处理装置，显示装置，视觉处理方法，程序和集成电路。 空间处理部分（2）从输入信号IS创建钝化信号US。 目标水平设定部（4）设定规定的目标水平值L，用于设定调整视觉处理强度的范围。 效果调整部（5）根据在外部设定的效果调整信号MOD，合成预定的目标电平值L和钝化信号US来产生合成信号MUS。 视觉处理部分（3）根据输入信号IS和合成信号MUS输出输出信号OS，使得可以改变视觉处理的强度。

    Visual processing device, visual processing method, program, display device, and integrated circuit
    36.
    发明授权
    Visual processing device, visual processing method, program, display device, and integrated circuit 有权
    视觉处理装置，视觉处理方法，程序，显示装置和集成电路

    公开(公告)号：US07894684B2

    公开(公告)日：2011-02-22

    申请号：US12297403

    申请日：2007-03-27

    申请人： Yusuke Monobe ,  Haruo Yamashita ,  Takeshi Ito

    发明人： Yusuke Monobe ,  Haruo Yamashita ,  Takeshi Ito

    IPC分类号： G06K9/40 ,  H04N9/64 ,  H04N9/00

    CPC分类号： H04N1/4092 ,  G06T5/008 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20192 ,  H04N5/142 ,  H04N5/20

    摘要： In order to inhibit artifacts (even when a special image has been input) a visual processing device is provided with a spatial processing portion extracting surrounding image information US from an input image signal IS, and a special image detection portion outputting a special image effect adjustment signal DS according to a degree of a statistical bias of the image signal IS. The visual processing device also includes a continuous changing portion outputting an effect adjustment signal MOD in which the special image effect adjustment signal DS is continuously changed between frames, an effect adjustment portion outputting a synthesized signal MUS in which the effect of the visual processing differs depending on the effect adjustment signal MOD, and a visual processing portion outputting a processed signal OS obtained by visually processing the image signal IS based on the image signal IS and the synthesized signal MUS.

    摘要翻译： 为了抑制伪影（即使当输入了特殊图像时），可视处理装置具有从输入图像信号IS提取周围图像信息US的空间处理部分，以及输出特殊图像效果调整的特殊图像检测部 信号DS根据图像信号IS的统计偏差的程度。 视觉处理装置还包括输出效果调整信号MOD的连续变化部分，其中特殊图像效果调整信号DS在帧之间连续变化，输出合成信号MUS的效果调整部分，其中视觉处理的效果相差 在效果调整信号MOD上，以及可视处理部，输出通过基于图像信号IS和合成信号MUS可视地处理图像信号IS而获得的处理信号OS。