会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Digital watermark embedding method, apparatus and storage medium for reducing image quality deterioration and increasing detection reliability
    • 数字水印嵌入方法,装置和存储介质,用于降低图像质量恶化和提高检测可靠性
    • US08208683B2
    • 2012-06-26
    • US12282062
    • 2007-03-01
    • Susumu YamamotoTakao Nakamura
    • Susumu YamamotoTakao Nakamura
    • G06K9/00
    • H04N19/467H04N21/23892H04N21/44008H04N21/4627H04N21/8358
    • A digital watermark embedding apparatus for embedding embedding information, as digital watermark, into an input signal having dimensions equal to or greater than N (N is an integer equal to or greater than 2) and a digital watermark detection apparatus for detecting the digital watermark are disclosed. The digital watermark embedding apparatus generates an embedding sequence based on embedding information, generates a N−1-dimensional pattern based on the embedding sequence, generates N-dimensional embedding pattern by modulating a periodic signal according to a value on the N−1-dimensional pattern, and superimposing the embedding pattern in the input signal and outputs it. The digital watermark detection apparatus measures a component of a predetermined periodic signal in a direction of a dimension of the input signal to obtain a N−1-dimensional pattern, obtains a detection sequence from values of the N−1 dimensional pattern, and detects embedded digital watermark based on a size of correlation value between the detection sequence and an embedding sequence.
    • 一种用于将嵌入信息作为数字水印嵌入到尺寸等于或大于N(N是等于或大于2的整数)的输入信号中的数字水印嵌入装置和用于检测数字水印的数字水印检测装置, 披露 数字水印嵌入装置基于嵌入信息生成嵌入序列,根据嵌入序列生成N-1维图案,根据N-1维的值对周期信号进行调制,生成N维嵌入图案 模式,并将嵌入模式叠加在输入信号中并输出。 电子水印检测装置在输入信号的尺寸方向上测量预定周期信号的分量,以获得N-1维图案,从N-1维图案的值获得检测序列,并检测嵌入 基于检测序列和嵌入序列之间的相关值的大小的数字水印。
    • 4. 发明申请
    • ELECTRONIC WATERMARK EMBEDDING METHOD, DEVICE, AND PROGRAM, AND ELECTRONIC WATERMARK DETECTING METHOD, DEVICE, AND PROGRAM
    • 电子水印嵌入方法,设备和程序以及电子水印检测方法,设备和程序
    • US20120070032A1
    • 2012-03-22
    • US13301881
    • 2011-11-22
    • Susumu YAMAMOTOTakao Nakamura
    • Susumu YAMAMOTOTakao Nakamura
    • G06K9/00
    • H04N19/467H04N21/23892H04N21/44008H04N21/4627H04N21/8358
    • A digital watermark embedding apparatus for embedding embedding information, as digital watermark, into an input signal having dimensions equal to or greater than N (N is an integer equal to or greater than 2) and a digital watermark detection apparatus for detecting the digital watermark are disclosed. The digital watermark embedding apparatus generates an embedding sequence based on embedding information, generates a N−1-dimensional pattern based on the embedding sequence, generates N-dimensional embedding pattern by modulating a periodic signal according to a value on the N−1-dimensional pattern, and superimposing the embedding pattern in the input signal and outputs it. The digital watermark detection apparatus measures a component of a predetermined periodic signal in a direction of a dimension of the input signal to obtain a N−1-dimensional pattern, obtains a detection sequence from values of the N−1 dimensional pattern, and detects embedded digital watermark based on a size of correlation value between the detection sequence and an embedding sequence.
    • 一种用于将嵌入信息作为数字水印嵌入到尺寸等于或大于N(N是等于或大于2的整数)的输入信号中的数字水印嵌入装置和用于检测数字水印的数字水印检测装置, 披露 数字水印嵌入装置基于嵌入信息生成嵌入序列,根据嵌入序列生成N-1维图案,根据N-1维的值对周期信号进行调制,生成N维嵌入图案 模式,并将嵌入模式叠加在输入信号中并输出。 电子水印检测装置在输入信号的尺寸方向上测量预定周期信号的分量,以获得N-1维图案,从N-1维图案的值获得检测序列,并检测嵌入 基于检测序列和嵌入序列之间的相关值的大小的数字水印。