专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100063978A1 APPARATUS AND METHOD FOR INSERTING/EXTRACTING NONBLIND WATERMARK USING FEATURES OF DIGITAL MEDIA DATA 审中-公开
标题翻译：使用数字媒体数据的特征插入/提取非串行水印的装置和方法
公开(公告)号：US20100063978A1
公开(公告)日：2010-03-11
申请号：US12516614
申请日：2007-07-23
申请人： Sang Kwang Lee , Young Ho Suh , Weon Geun Oh , Won Gyum Kim , Wonyoung Yoo , Sung Hwan Lee , Yong Seok Seo , Hye Won Jung , Seon Hwa Lee , Young Suk Yoon , Seungjae Lee , Jin Soo Seo
发明人： Sang Kwang Lee , Young Ho Suh , Weon Geun Oh , Won Gyum Kim , Wonyoung Yoo , Sung Hwan Lee , Yong Seok Seo , Hye Won Jung , Seon Hwa Lee , Young Suk Yoon , Seungjae Lee , Jin Soo Seo
IPC分类号： G06F17/30 , H04L9/32
CPC分类号： G11B20/00086 , G11B20/00884 , G11B27/28
摘要： An apparatus and method for inserting/extracting a nonblind watermark using features of digital media data are provided. The apparatus and method inserts a watermark adaptively using watermark-related information determined by analyzing the characteristics of digital media data, also extracts features of the digital media data, automatically searches original media data corresponding to the features, and simultaneously and efficiently extracts a watermark using watermark-related information. Therefore, When the watermark is extracted, the original media data can be searched automatically.
摘要翻译：提供了一种使用数字媒体数据的特征来插入/提取非盲人水印的装置和方法。该装置和方法使用通过分析数字媒体数据的特征确定的水印相关信息自适应地插入水印，还提取数字媒体数据的特征，自动搜索对应于特征的原始媒体数据，并且同时且有效地提取水印水印相关信息。因此，当提取水印时，可以自动搜索原始媒体数据。

2. 发明申请

US20080226124A1 Method For Inserting and Extracting Multi-Bit Fingerprint Based on Wavelet 审中-公开
标题翻译：基于小波插入和提取多位指纹的方法
公开(公告)号：US20080226124A1
公开(公告)日：2008-09-18
申请号：US12066421
申请日：2005-12-14
申请人： Yong Seok Seo , Hye Won Jung , Won Gyum Kim , Seon Hwa Lee
发明人： Yong Seok Seo , Hye Won Jung , Won Gyum Kim , Seon Hwa Lee
IPC分类号： G06K9/00
CPC分类号： H04N19/467 , H04N1/3217 , H04N1/32187 , H04N1/32192 , H04N19/63 , H04N2201/3233 , H04N2201/327
摘要： A method for inserting and extracting a fingerprint based on a wavelet is disclosed. The method includes: a) decomposing an original image into a first sub-band image having low frequency band columns and rows, a second sub-band image having high frequency band columns and low frequency band rows, a third sub-band image having low frequency band columns and high frequency band rows and a fourth sub-band image having high frequency band columns and rows by performing an n-level discrete wavelet transformation on an original image; b) obtaining a human visual system model from the first sub-band image; c) generating an N×N fingerprint basic block by performing a message modulation on a multi-bit fingerprint signal with a security key and adding a synch pattern to the modulated signal; d) repeatedly inserting the fingerprint basic block in to the second, the third and the fourth sub-band images with reference to the human visual system model; and e) generating a fingerprint inserted image by performing an inverse discrete wavelet transformation on the first sub-band image and the fingerprint basic block inserted second, third and fourth sub-band images.
摘要翻译：公开了一种基于小波插入和提取指纹的方法。该方法包括：a）将原始图像分解为具有低频带列和行的第一子带图像，具有高频带列和低频带行的第二子带图像，具有低频带列的第三子带图像频带列和高频带行以及具有高频带列和行的第四子带图像，通过对原始图像执行n级离散小波变换; b）从第一子带图像获得人类视觉系统模型; c）通过利用安全密钥对多比特指纹信号执行消息调制并将同步模式添加到调制信号来产生N×N指纹基本块; d）参照人类视觉系统模型，将指纹基本块重复插入第二，第三和第四子带图像; 以及e）通过对第一子带图像和插入的第二，第三和第四子带图像的指纹基本块执行逆离散小波变换来生成指纹插入图像。

3. 发明申请

US20090125310A1 APPARATUS AND METHOD FOR INSERTING/EXTRACTING CAPTURING RESISTANT AUDIO WATERMARK BASED ON DISCRETE WAVELET TRANSFORM, AUDIO RIGHTS PROTECTION SYSTEM USING THE SAME 审中-公开
标题翻译：基于离散小波变换插入/提取拍摄电阻水印的装置和方法，使用该音视频保护系统的音视频保护系统
公开(公告)号：US20090125310A1
公开(公告)日：2009-05-14
申请号：US12298994
申请日：2007-06-11
申请人： Seungjae Lee , Sang Kwang Lee , Jin Soo Seo , Young Ho Suh , Yong Seok Seo , Seon Hwa Lee , Won Gyum Kim , Wonyoung Yoo , Sung Hwan Lee , Hye Won Jung , Young Suk Yoon
发明人： Seungjae Lee , Sang Kwang Lee , Jin Soo Seo , Young Ho Suh , Yong Seok Seo , Seon Hwa Lee , Won Gyum Kim , Wonyoung Yoo , Sung Hwan Lee , Hye Won Jung , Young Suk Yoon
IPC分类号： G10L21/00
CPC分类号： H04N5/0675 , H04H20/31 , H04H60/37 , H04H60/58 , H04H2201/50 , H04N5/602 , H04N21/235 , H04N21/23892 , H04N21/435 , H04N21/43853 , H04N21/8106 , H04N21/8358
摘要： An apparatus and method for embedding and extracting a capturing-resistant audio watermark based on discrete wavelet transform, and a copyright management system using the same are provided. The apparatus for embedding a wavelet based audio watermark includes: a framing unit for dividing an input audio signal into small signals with a regular length; a discrete wavelet transform unit for calculating an mean value of wavelet coefficients by transforming the small signals based on a discrete wavelet transform; and an embedding unit for changing the calculated mean value according to a watermark where a synchronization signal is inserted and inserting the watermark into the audio signal.
摘要翻译：提供了一种基于离散小波变换嵌入和提取抗拍摄音频水印的装置和方法，以及使用该方法的版权管理系统。用于嵌入基于小波的音频水印的装置包括：成帧单元，用于将输入音频信号分成具有规则长度的小信号; 离散小波变换单元，用于通过基于离散小波变换来变换小信号来计算小波系数的平均值; 以及嵌入单元，用于根据插入同步信号的水印改变计算出的平均值，并将水印插入到音频信号中。

4. 发明申请

US20090172404A1 Method and Apparatus for Hybrid Watermarking 审中-公开
标题翻译：混合水印方法与装置
公开(公告)号：US20090172404A1
公开(公告)日：2009-07-02
申请号：US12226915
申请日：2006-08-11
申请人： Won Gyum Kim , Yong-Seok Seo , Seon Hwa Lee , Wonyoung Yoo , Sang Kwang Lee , Sung Hwan Lee , Seungjae Lee , Hye Won Jung , Young-Suk Yoon , Jin Soo Seo , Young Ho Suh , Weon Geun Oh
发明人： Won Gyum Kim , Yong-Seok Seo , Seon Hwa Lee , Wonyoung Yoo , Sang Kwang Lee , Sung Hwan Lee , Seungjae Lee , Hye Won Jung , Young-Suk Yoon , Jin Soo Seo , Young Ho Suh , Weon Geun Oh
IPC分类号： H04L9/00 , G06K9/36 , G06K9/46 , G06K9/40
CPC分类号： G06T1/0071 , G06T2201/0052
摘要： A hybrid watermark insertion method includes the steps of dividing the digital image into a low frequency region and a high frequency region using an edge map of the digital image; inserting a watermark into the low frequency region of the image by employing a watermarking method using a human visual system (HVS); and inserting the watermark into the high frequency region of the image by employing a quantization index modulation (QIM) method. A hybrid watermark extraction method includes the steps of estimating a reference value used when inserting a watermark, and searching a maximum value of correlation coefficients in an image of the watermark image while changing the estimated reference value within a designated range, to thereby find out the watermark insertion method. Accordingly, the watermark insertion method can be easily identified, thereby enabling the watermark extraction in a more readily manner.
摘要翻译：混合水印插入方法包括以下步骤：使用数字图像的边缘图将数字图像分割成低频区域和高频区域; 通过使用人类视觉系统（HVS）的水印方法将水印插入图像的低频区域; 并通过采用量化索引调制（QIM）方法将水印插入图像的高频区域。混合水印提取方法包括以下步骤：估计在插入水印时使用的参考值，并且在指定范围内改变估计的参考值的同时，在水印图像的图像中搜索相关系数的最大值，从而找出水印插入法。因此，可以容易地识别水印插入方法，从而能够更容易地进行水印提取。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式