Quantizer designed by using human visual sensitivity
    2.
    发明授权
    Quantizer designed by using human visual sensitivity 失效
    量化器采用人体视觉灵敏度设计

    公开(公告)号:US5557276A

    公开(公告)日:1996-09-17

    申请号:US281294

    申请日:1994-07-27

    摘要: A quantizer designed by using human visual sensitivity is disclosed, in which when postprocessing is done after inverse quantization an optimum visual sensitivity function for a system involving the postprocessing is obtained for doing quantization by using that visual sensitivity function.Where the postprocessing that is executed after the inverse quantization consists of a filtering process with a characteristic L(.omega.) (.omega. being the frequency) and a 1:2 interpolation process, denoting the optimum visual sensitivity as the output result by W(.omega.) as shown in FIG. 2, the optimum equivalent sensitivity function W'(.omega.) is given asW'(.omega.)=1/2[L(.omega./2)W(.omega./2)+L(.omega./2+.pi.)W(.omega./2+.pi.)].By using this equivalent sensitivity function W'(.omega.) for the quantizer, it is possible to obtain a visually optimum quantizer designed by using human visual sensitivity.

    摘要翻译: 公开了通过使用人类视觉灵敏度设计的量化器,其中当在逆量化后进行后处理时,通过使用该视觉灵敏度函数来获得涉及后处理的系统的最佳视觉灵敏度功能进行量化。 在逆量化后执行的后处理由具有特征L(ω)(ω为频率)和1:2内插处理的滤波处理构成,表示作为W(ω)的输出结果的最佳视觉灵敏度, 如图1所示。 如图2所示,最优等效灵敏度函数W'(ω)被给出为W'(ω)= + E,fra 1/2 + EE [L(ω/ 2)W(ω/ 2)+ L(ω/ pi)W(ω/ 2 + pi)]。 通过使用量化器的这种等效灵敏度函数W'(ω),可以获得通过使用人类视觉灵敏度设计的视觉最佳量化器。

    Video encoding apparatus, video decoding apparatus, video encoding method, video decoding method, and computer program
    3.
    发明授权
    Video encoding apparatus, video decoding apparatus, video encoding method, video decoding method, and computer program 有权
    视频编码装置,视频解码装置,视频编码方法,视频解码方法和计算机程序

    公开(公告)号:US08731057B2

    公开(公告)日:2014-05-20

    申请号:US13209875

    申请日:2011-08-15

    IPC分类号: H04N1/417

    摘要: It is a purpose of the present invention to provide a video encoding apparatus, a video decoding apparatus, a video encoding method, a video decoding method, and a computer program, which allow adaptive filter coefficients to be used with a reduced amount of coding. A video encoding apparatus AA selects a suitable coefficient from among multiple kinds of interpolation filter coefficients determined beforehand by means of a component external to the video encoding apparatus AA. Subsequently, the video encoding apparatus AA records identification information uniquely defined for the selected interpolation filter coefficient in control information for each slice. Furthermore, the video encoding apparatus AA uses the interpolation filter coefficient thus selected to generate encoded data c including the identification information uniquely defined for the interpolation filter coefficient thus selected.

    摘要翻译: 本发明的目的是提供一种视频编码装置,视频解码装置,视频编码方法,视频解码方法和计算机程序,其允许以减少的编码量使用自适应滤波器系数。 视频编码装置AA从通过视频编码装置AA外部的分量预先确定的多种内插滤波器系数中选择合适的系数。 随后,视频编码装置AA将针对所选择的内插滤波器系数唯一地定义的识别信息记录在每个切片的控制信息中。 此外,视频编码装置AA使用这样选择的内插滤波器系数来生成包含为所选择的内插滤波器系数唯一定义的识别信息的编码数据c。

    Method, apparatus and computer program for embedding barcode in color image
    4.
    发明授权
    Method, apparatus and computer program for embedding barcode in color image 有权
    用于在彩色图像中嵌入条形码的方法,装置和计算机程序

    公开(公告)号:US08550366B2

    公开(公告)日:2013-10-08

    申请号:US11829472

    申请日:2007-07-27

    IPC分类号: G06K19/06

    CPC分类号: G06K7/14 G06K19/06046

    摘要: A barcode-embedding area is obtained in a color image based on expression possibility by the juxtaposed additive color mixture and possibility of reading of pixels separately by a barcode reader (S11), a color image in the barcode-embedding area is expressed by the juxtaposed additive color mixture, and color images for the code area and the background area, which are readable by the barcode reader, are created (S12, S13), a color-image-superimposed barcode image is created by using the color images for the code area and the background area, and the same color-image-superimposed barcode image is embedded in the barcode-embedding area (S14), and the color-image-superimposed barcode image and the original color image are corrected if necessary (S15, S16).

    摘要翻译: 基于通过并置添加剂混合物的表达可能性和通过条形码读取器单独读取像素的可能性的彩色图像获得条形码嵌入区域(S11),条形码嵌入区域中的彩色图像由并置表示 创建加法颜色混合物和条形码读取器可读取的代码区域和背景区域的彩色图像(S12,S13),通过使用用于代码的彩色图像来创建彩色图像叠加的条形码图像 区域和背景区域,并且将相同的彩色图像叠加的条形码图像嵌入在条形码嵌入区域中(S14),并且如果需要则校正彩色图像叠加的条形码图像和原始彩色图像(S15,S16 )。

    Color correction apparatus, method and computer program
    5.
    发明授权
    Color correction apparatus, method and computer program 有权
    颜色校正装置,方法和计算机程序

    公开(公告)号:US08428350B2

    公开(公告)日:2013-04-23

    申请号:US12178335

    申请日:2008-07-23

    IPC分类号: G06K9/00

    CPC分类号: H04N9/68 H04N5/247

    摘要: The present invention relates to color correction of video signals from a plurality of cameras. The apparatus has a correction order that defines a plurality of camera pairs and an order of the camera pairs, where each camera pair specifies a reference camera and a target camera. In the correction order, each camera is treated as a target camera at least one time, and the reference camera is treated as the target camera in a previous camera pair except for the first camera pair. The apparatus corrects a value of each pixel in a target image captured by the target camera based on a reference image captured by the reference camera, and replaces the target image by the corrected target image, for each camera pair in accordance with the order of the camera pairs.

    摘要翻译: 本发明涉及来自多个摄像机的视频信号的颜色校正。 该装置具有定义多个相机对的校正顺序以及相机对的顺序,其中每个相机对指定参考相机和目标相机。 在校正顺序中,将至少一次将每个摄像机视为目标摄像机,并且将参考摄像机视为除了第一摄像机对之外的先前摄像机对中的目标摄像机。 该装置基于由参考相机拍摄的参考图像来校正由目标相机捕获的目标图像中的每个像素的值,并且根据所述相机的顺序,针对每个相机对,针对每个相机对替换目标图像。 相机对。

    Bit rate controller for multiplexer of encoded video
    6.
    发明授权
    Bit rate controller for multiplexer of encoded video 失效
    编码视频复用器的比特率控制器

    公开(公告)号:US5550590A

    公开(公告)日:1996-08-27

    申请号:US395709

    申请日:1995-02-28

    摘要: In the present invention, by performing a control so that the I-coding modes of the encoders of a plurality of respective channels do not overlap each other, the amount of generated encoded information for the total system can be reduced without reducing the allowed amount of information of each encoder. Further, the bit rate Ri (i=1, 2, 3, . . . ) which minimizes the mean square error (E) is determined, on condition that the total bit rate (R) is constant, and informed the encoder. The encoder encodes a video signal at the specified bit rate. This allows the total performance of the plurality of encoders to be increased under a predetermined total bit rate.

    摘要翻译: 在本发明中,通过进行控制使得多个通道的编码器的I编码模式彼此不重叠,可以减少用于整个系统的编码信息的量,而不减少允许的量 每个编码器的信息。 此外,在总比特率(R)恒定的条件下,确定最小化均方误差(E)的比特率Ri(i = 1,2,3等等)并通知编码器。 编码器以指定的比特率编码视频信号。 这允许在预定的总比特率下增加多个编码器的总体性能。

    Video encoding apparatus and video decoding apparatus
    7.
    发明授权
    Video encoding apparatus and video decoding apparatus 有权
    视频编码装置和视频解码装置

    公开(公告)号:US08780995B2

    公开(公告)日:2014-07-15

    申请号:US12963138

    申请日:2010-12-08

    摘要: It is a purpose of the present invention to provide a video encoding apparatus and a video decoding apparatus which are capable of providing real-time processing having improved coding performance. A video encoding apparatus AA includes an inter-encoding predicted value generating unit 2 configured to receive, as input signals, an input image a, a local decoded value d acquired from an encoded block, prediction direction information e acquired from the encoded block, and interpolation filter initial control information b. The inter-encoding predicted value generating unit 2 includes a filter control unit 21. The filter control unit 21 extracts the tap size N of the interpolation filter and the initial value c0(i,j) of the filter coefficient of the interpolation filter from the interpolation filter initial control information b, and uses the initial value c0(i,j) of the filter coefficient of the interpolation filter as the filter coefficient c(i,j) of the interpolation filter.

    摘要翻译: 本发明的目的是提供能够提供具有改进的编码性能的实时处理的视频编码装置和视频解码装置。 视频编码装置AA包括帧间编码预测值生成单元2,其被配置为接收输入图像a,从编码块获取的局部解码值d,从编码块获取的预测方向信息e,以及 内插滤波器初始控制信息b。 帧间编码预测值生成单元2包括滤波器控制单元21.滤波器控制单元21从插值滤波器的抽头尺寸N提取内插滤波器的滤波器系数的初始值c0(i,j) 内插滤波器初始控制信息b,并且使用内插滤波器的滤波器系数的初始值c0(i,j)作为内插滤波器的滤波器系数c(i,j)。

    Calibration apparatus and method for imaging devices and computer program
    8.
    发明授权
    Calibration apparatus and method for imaging devices and computer program 有权
    用于成像装置和计算机程序的校准装置和方法

    公开(公告)号:US08164633B2

    公开(公告)日:2012-04-24

    申请号:US12350621

    申请日:2009-01-08

    IPC分类号: H04N17/00 H04N17/02

    CPC分类号: G06T7/80

    摘要: The present invention relates to calibration of camera parameters for converting a world coordinate system, which indicates a position in the real space, to a coordinate used in an image and vice versa. The apparatus according to the invention has a detection unit, which determines corresponding pixel pairs from the captured image and the model image and outputs corresponding data indicating determined pixel pairs, and a selection unit, which selects pixel pairs to be left in the corresponding data and removes data related to an unselected pixel pair from the corresponding data for generating selected corresponding data. The apparatus further has a calculation unit, which calculates camera parameters based on the selected corresponding data.

    摘要翻译: 本发明涉及用于将指示真实空间中的位置的世界坐标系转换为图像中使用的坐标的相机参数的校准,反之亦然。 根据本发明的装置具有检测单元,该检测单元从捕获的图像和模型图像确定相应的像素对,并输出指示确定的像素对的对应数据,以及选择单元,其选择要留在相应数据中的像素对,以及 从相应的数据移除与未选择的像素对有关的数据,以产生所选择的相应数据。 该装置还具有计算单元,其基于所选择的相应数据来计算摄像机参数。

    Compressed data scrambled distribution device and playback device thereof
    9.
    发明授权
    Compressed data scrambled distribution device and playback device thereof 有权
    压缩数据加扰分发装置及其播放装置

    公开(公告)号:US08074074B2

    公开(公告)日:2011-12-06

    申请号:US11373333

    申请日:2006-03-13

    IPC分类号: H04L9/32 H04L9/34

    摘要: The present invention provides a scrambled compressed data distribution device that can perform a high-resistance scrambled compressed data distribution by selectively using a plurality of types of scramble information and a playback device thereof.A scrambling section scrambles compressed data by unique one of a plurality of scrambling methods. A hash value calculating section determines a hash value based on data b in a position where digital watermark data is not embedded, and an encrypting section encrypts the hash value with a secret key Sk(n) corresponding to the scrambling method and outputs an encrypted hash value c. A watermark data embedding section embeds the encrypted hash value in a watermark data embedding position of the data b and transmits the same as a compressed data stream d.

    摘要翻译: 本发明提供一种加扰压缩数据分配装置,其可以通过选择性地使用多种类型的加扰信息和其重放装置来执行高电阻加扰压缩数据分配。 加扰部分通过多个加扰方法中的唯一一个加扰压缩数据。 散列值计算部根据未嵌入数字水印数据的位置的数据b来确定散列值,加密部使用与扰频方法对应的秘密密钥Sk(n)对散列值进行加密,并输出加密散列 价值c 水印数据嵌入部将加密散列值嵌入数据b的水印数据嵌入位置,并将其作为压缩数据流d发送。

    MOVING-PICTURE ENCODING APPARATUS AND DECODING APPARATUS
    10.
    发明申请
    MOVING-PICTURE ENCODING APPARATUS AND DECODING APPARATUS 审中-公开
    移动图像编码装置和解码装置

    公开(公告)号:US20100322316A1

    公开(公告)日:2010-12-23

    申请号:US12814634

    申请日:2010-06-14

    IPC分类号: H04N7/32

    摘要: As the encoding mode, a moving-picture encoding apparatus includes an encoding mode that relies only on inference based on encoding information of a previously encoded unit block so as to encode a picture of a unit block. The encoding information in this encoding mode is imparted with secondary encoding information for improving the prediction performance, e.g., MV information. The MV information is produced by an MV-information producing unit 21 to which an input picture and MV information in a previously encoded MB are input. A locally-decoded picture producing unit 22 produces a locally-decoded picture (pixel value) of the previously encoded MB. As the secondary encoding information, a DC component of an orthogonal transformation result relative to a prediction error or a value equivalent to an average value of prediction errors can also be used.

    摘要翻译: 作为编码模式,运动图像编码装置包括仅基于推断的编码模式,该编码模式基于先前编码的单位块的编码信息,以对单位块的图像进行编码。 该编码模式中的编码信息被赋予用于改善预测性能的辅助编码信息,例如MV信息。 MV信息由输入图像和先前编码的MB中的MV信息的MV信息产生单元21产生。 本地解码图像产生单元22产生先前编码的MB的本地解码的图像(像素值)。 作为二次编码信息,也可以使用相对于预测误差的正交变换结果的DC分量或与预测误差的平均值相当的值。