Digital-watermark superposing apparatus and digital-watermarker
detecting apparatus
    61.
    发明授权
    Digital-watermark superposing apparatus and digital-watermarker detecting apparatus 有权
    数字水印叠加装置和数字水印检测装置

    公开(公告)号:US6111990A

    公开(公告)日:2000-08-29

    申请号:US152294

    申请日:1998-09-14

    摘要: In a digital-watermark superposing apparatus and a digital-watermark detecting apparatus, a plurality of DCT coefficients for respective frequency components are generated by subjecting video data to a two-dimensional DCT transform for each pixel block consisting of a predetermined number of pixels, and the value of at least one of the DCT coefficients is quantized in accordance with a quantization rule corresponding to the information so as to obtain a quantized DCT coefficient. A two-dimensional inverse DCT transform is performed with respect to the DCT coefficients in which the at least one DCT coefficient thereof is replaced with the quantized DCT coefficient, so as to obtain digital-watermark superposed video data in which the digital watermark corresponding to the information has been superposed on the video data. At this juncture, the digital-watermark superposed video data is selected and outputted concerning a section in which a video pattern due to the video data is not flatter than a predetermined video pattern, while, instead of the digital-watermark superposed video data, the video data is selected and outputted as it is concerning a section in which the video pattern due to the video data is flatter than the predetermined video pattern.

    摘要翻译: 在数字水印重叠装置和数字水印检测装置中,通过使视频数据对于由预定数量的像素构成的每个像素块进行二维DCT变换来生成用于各个频率分量的多个DCT系数,以及 根据对应于该信息的量化规则量化DCT系数中的至少一个的值,以获得量化的DCT系数。 对于其中至少一个DCT系数被替换为DCT系数的DCT系数执行二维逆DCT变换,以获得数字水印叠加的视频数据,其中对应于 信息已经叠加在视频数据上。 此时,数字水印叠加视频数据被选择并输出,其中由于视频数据而导致的视频图像不比预定的视频图形更平坦,而代替数字水印叠加的视频数据, 选择和输出视频数据,其中由于视频数据导致的视频图像比预定的视频图形更平坦的部分。

    Method of correcting errors of coded data
    66.
    发明授权
    Method of correcting errors of coded data 失效
    纠正编码数据错误的方法

    公开(公告)号:US5371751A

    公开(公告)日:1994-12-06

    申请号:US718467

    申请日:1991-06-20

    申请人: Yoshiaki Moriyama

    发明人: Yoshiaki Moriyama

    IPC分类号: G06F11/10 H03M13/00 H03M13/29

    摘要: A method of correcting triple-coded data, in which data coded in three different directions is subjected to error correction by referring to first, second and third codes, as well as a first flag determined by the first code and a second flag determined by the second code and other conditions, whereby this method demonstrates high error correcting performance with respect particularly to a burst error.

    摘要翻译: 一种校正三重编码数据的方法,其中通过参考第一,第二和第三代码对三个不同方向编码的数据进行纠错,以及由第一代码确定的第一标志和由 第二代码和其他条件,由此该方法特别涉及突发错误,表现出高纠错性能。

    Data converting apparatus
    67.
    发明授权
    Data converting apparatus 失效
    数据转换装置

    公开(公告)号:US5151699A

    公开(公告)日:1992-09-29

    申请号:US855113

    申请日:1992-03-18

    申请人: Yoshiaki Moriyama

    发明人: Yoshiaki Moriyama

    IPC分类号: H03M5/14

    CPC分类号: H03M5/14 H03M5/145

    摘要: A data converting apparatus inserts DC control bits in an input data series to generate a redundant data series. This apparatus determines the value of the DC control bits in such a way as to minimize the DC component of an output code series which is obtained by subjecting the redundant data series to code conversion. The apparatus performs code conversion after inserting the determined DC control bits.

    摘要翻译: 数据转换装置将DC控制位插入到输入数据序列中以产生冗余数据序列。 该装置以这样的方式确定DC控制位的值,使得通过对冗余数据序列进行代码转换而获得的输出代码序列的DC分量最小化。 该装置在插入确定的DC控制位之后执行代码转换。

    Video format signal recording and reproducing method
    68.
    发明授权
    Video format signal recording and reproducing method 失效
    视频格式信号记录和再现方法

    公开(公告)号:US4703369A

    公开(公告)日:1987-10-27

    申请号:US654575

    申请日:1984-09-26

    摘要: In a method for recording and reproducing a video format signal including audio data and a video data signal, the audio data is divided into groups of audio data, and identification codes for the groups of audio data are inserted into the video format signal as required. For reproducing the video format signal, a sound specifying instruction is compared with the identification codes to detect the group of audio data which has been specified so that the group of audio data thus detected is reproduced while the video data signal is reproduced, for instance, as a still picture.

    摘要翻译: 在用于记录和再现包括音频数据和视频数据信号的视频格式信号的方法中,音频数据被分成音频数据组,并且根据需要将音频数据组的识别码插入到视频格式信号中。 为了再现视频格式信号,将声音指定指令与识别码进行比较,以检测已被指定的音频数据组,使得在再现视频数据信号时再现这样检测的音频数据组,例如, 作为静态图片。

    Image processing apparatus, image processing method, and computer-readable recording medium including shot generation
    69.
    发明授权
    Image processing apparatus, image processing method, and computer-readable recording medium including shot generation 有权
    图像处理装置,图像处理方法以及包括拍摄生成的计算机可读记录介质

    公开(公告)号:US08139877B2

    公开(公告)日:2012-03-20

    申请号:US12282083

    申请日:2007-03-06

    IPC分类号: G06K9/36 H04N5/228 G06K9/46

    摘要: An image processing apparatus includes a shot splitting unit that splits a moving image into a plurality of shots each including a plurality of sequential frames; a shot detecting unit that detects, among the shots, a second shot similar to a first shot that is to be encoded; a first shot-generating unit that generates a third shot by correcting a time length of the second shot; a second shot-generating unit that generates a fourth shot by performing motion compensation using at least one of the first shot and the third shot; and an encoding unit that encodes a difference between the first shot and the fourth shot.

    摘要翻译: 一种图像处理装置,包括将运动图像分割为多个连续帧的多个拍摄的拍摄分割单元; 拍摄检测单元,在拍摄中检测类似于要编码的第一镜头的第二镜头; 第一拍摄产生单元,其通过校正第二镜头的时间长度来产生第三镜头; 第二镜头产生单元,通过使用第一镜头和第三镜头中的至少一个进行运动补偿来生成第四镜头; 以及编码单元,其对第一镜头和第四镜头之间的差进行编码。