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1. 发明授权

US6084636A Video signal encoding method and apparatus employing an adaptive quantization technique 失效
标题翻译：采用自适应量化技术的视频信号编码方法和装置
公开(公告)号：US6084636A
公开(公告)日：2000-07-04
申请号：US937636
申请日：1997-09-25
申请人： Takayuki Sugahara , Motoharu Ueda , Hiroshi Nakagawa , Masayoshi Nishitani , Mitsuaki Fujiwara
发明人： Takayuki Sugahara , Motoharu Ueda , Hiroshi Nakagawa , Masayoshi Nishitani , Mitsuaki Fujiwara
IPC分类号： G06T9/00 , G11B20/10 , H03M7/30 , H03M7/36 , H03M7/40 , H04N19/126 , H04N19/13 , H04N19/134 , H04N19/146 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/186 , H04N19/189 , H04N19/194 , H04N19/196 , H04N19/42 , H04N19/423 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/593 , H04N19/60 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/85 , H04N19/91 , H04N7/36 , H04N7/50
CPC分类号： H04N19/184 , H04N19/126 , H04N19/15 , H04N19/172 , H04N19/176 , H04N19/61 , H04N19/146 , H04N19/152
摘要： A method employed in an encoding apparatus allocates bits for each of the pictures and blocks of a video signal based on quantization-dependent and quantization-independent signal thereof. First, the quantization-dependent signal is quantized based on a fixed quantization parameter; and the quantized data and the quantization-independent signal are statistically coded to thereby provided first data and second data. A target amount of encoded bits for each picture and block is then determined based on a target bit rate and the respective amounts of the first and the second data. The amounts of encoded data for the pictures and the blocks are adaptively controlled according to the target amounts of encoded bits by adjustably altering quantization parameters based on the difference between the target amount of the encoded bits and the amount of the encoded data generated.
摘要翻译：在编码装置中使用的方法基于与量化相关的和量子化的信号来分配视频信号的每个图像和块的比特。首先，量化依赖信号基于固定的量化参数进行量化; 并且对量化数据和量化独立信号进行统计编码，从而提供第一数据和第二数据。然后基于目标比特率和第一和第二数据的相应量来确定每个图像和块的编码比特的目标量。根据编码比特的目标量与生成的编码数据量之间的差异，通过可调整地改变量化参数，根据编码比特的目标量自适应地控制图像和块的编码数据量。

2. 发明授权

US07293180B2 Apparatus, method and program for data processing, and apparatus, method and program for tamper detection 有权
标题翻译：用于数据处理的装置，方法和程序，以及用于篡改检测的装置，方法和程序
公开(公告)号：US07293180B2
公开(公告)日：2007-11-06
申请号：US10814533
申请日：2004-03-31
申请人： Kenjiro Ueda , Masayoshi Nishitani , Takayuki Sugahara
发明人： Kenjiro Ueda , Masayoshi Nishitani , Takayuki Sugahara
IPC分类号： G06F9/00
CPC分类号： H04N19/467 , H04N7/1675
摘要： Digital video data is encryptically processed and then subjected to an encoding procedure with orthogonal transform to produce a coded video signal. A representative value of luminance of pixels of the digital video data is obtained for each of pixel blocks having a predetermined number of pixels, each pixel block corresponding to a unit of data subjected to the encoding procedure, as a quantized integer for each pixel block by using a specific function with the stored luminance data as a parameter. It is determined whether the quantized integer of the representative value for each pixel block is a multiple of a preset integer N of two or larger, and, if not, the stored luminance data are rewritten with a specific requirement giving the least range of change in gradation so that the quantized integer becomes a multiple of the integer N, whereas the stored luminance data remain unchanged if the quantized integer is a multiple of the integer N, thus the digital video data being encryptically processed. The encryptically processed digital video data is encoded with orthogonal transform to produce a coded video signal. The coded video signal is decoded. A second representative value of luminance data of the decoded signal is obtained as a quantized integer for each pixel block by using the specific function with the luminance data as the parameter. The quantized integer of the second representative value is divided by the integer N. It is determined that the video data has been tampered with when remainders of division meet predetermined tamer criteria.
摘要翻译：对数字视频数据进行加密处理，然后进行正交变换的编码处理，以产生编码视频信号。对于具有预定数量的像素的每个像素块（每个像素块对应于经过编码过程的数据的像素块），获得数字视频数据的像素的亮度的代表值作为每个像素块的量化整数，由使用存储的亮度数据作为参数的特定功能。确定每个像素块的代表值的量化整数是否为两个或更大的预设整数N的倍数，如果不是，则存储的亮度数据被重写，具有给定最小变化范围的特定要求使得量化的整数变为整数N的倍数，而如果量化的整数是整数N的倍数，则存储的亮度数据保持不变，因此数字视频数据被加密处理。经加密处理的数字视频数据用正交变换编码以产生编码视频信号。编码视频信号被解码。通过使用亮度数据作为参数的特定函数，获得解码信号的亮度数据的第二代表值作为每个像素块的量化整数。将第二代表值的量化整数除以整数N.确定当分割余数达到预定标准条件时视频数据已被篡改。

3. 发明授权

US07356159B2 Recording and reproduction apparatus, recording and reproduction method, recording and reproduction program for imperceptible information to be embedded in digital image data 有权
标题翻译：记录和再现装置，记录和再现方法，用于嵌入数字图像数据中的不可察觉信息的记录和再现程序
公开(公告)号：US07356159B2
公开(公告)日：2008-04-08
申请号：US10760012
申请日：2004-01-15
申请人： Takayuki Sugahara , Masayoshi Nishitani , Kenjiro Ueda
发明人： Takayuki Sugahara , Masayoshi Nishitani , Kenjiro Ueda
IPC分类号： G06K9/00 , G06K9/36
CPC分类号： H04N1/32144 , H04N2201/327
摘要： Digital image data is divided, per frame, into “N” fields. “N/m” combinations of imperceptible codes are produced, each combination having “m” codes given by an inverse of a function giving an identification code with the “m” codes as variables. “N” and “m” are an integer of 2 or more and “m” is given by dividing “N” by an integer. The combinations are embedded into the data to embed the “m” codes of each combination into the data in “m” fields according to a rule of positional correspondence to give correlation among “m” fields in “N” fields. The data is divided into “N” fields and the codes are extracted therefrom and combined into the combinations according to the rule. An operation is conducted based on the function. It is determined that the data has not been tampered with only when the operation gives the identification code for each combination.
摘要翻译：数字图像数据按帧划分成“N”字段。产生不可知代码的“N / m”组合，每个组合具有由给出具有“m”个代码的识别码作为变量的函数的反函数给出的“m”个代码。 “N”和“m”是2以上的整数，并且“m”通过将“N”除以整数来给出。这些组合被嵌入到数据中，以根据位置对应规则将每个组合的“m”个代码嵌入到“m”字段中的数据中，以给出“N”字段中的“m”字段之间的相关性。数据被划分为“N”个字段，并且根据规则将代码从其中提取并组合成组合。基于功能进行操作。只有当操作给出每个组合的识别码时，确定数据没有被篡改。

4. 发明授权

US07113612B2 Apparatus for embedding and reproducing watermark into and from contents data 有权
公开(公告)号：US07113612B2
公开(公告)日：2006-09-26
申请号：US10067920
申请日：2002-02-08
申请人： Takayuki Sugahara , Masayoshi Nishitani
发明人： Takayuki Sugahara , Masayoshi Nishitani
IPC分类号： G06K9/00
CPC分类号： G06T1/0057 , G06T2201/0051 , G06T2201/0061
摘要： An apparatus for embedding a watermark into contents data includes a parameter converting device for converting a parameter of first contents data to generate second contents data. A mixing device operates for embedding parameter information into the second contents data as watermark information. The parameter information represents a condition of the conversion of the parameter by the parameter converting device. The watermark information may include copyright information.

5. 发明授权

US07174030B2 Method and apparatus for embedding and reproducing watermark into and from contents data 有权
标题翻译：从内容数据中嵌入和再现水印的方法和装置
公开(公告)号：US07174030B2
公开(公告)日：2007-02-06
申请号：US10029672
申请日：2001-12-31
申请人： Takayuki Sugahara , Masayoshi Nishitani
发明人： Takayuki Sugahara , Masayoshi Nishitani
IPC分类号： G06K9/00
CPC分类号： G06T1/0021 , H04N1/32203 , H04N1/32208 , H04N1/32213 , H04N1/32229 , H04N1/32309 , H04N2201/3233 , H04N2201/327
摘要： An apparatus for embedding a watermark into contents data includes a pattern generating device for generating bits representing a predetermined bit pattern corresponding to a watermark. A specified-bit detecting device operates for detecting bits in original picture data as specified bits into which a watermark can be embedded. A calculating device operates for calculating a desired bit pattern represented by the specified bits in response to the predetermined bit pattern and a specified bit pattern. The desired bit pattern can be converted into the specified bit pattern by given logical operation with the predetermined bit pattern. A mixing device operates for changing the specified bits to represent the desired bit pattern to convert the original picture data into watermark-embedded picture data.
摘要翻译：用于将水印嵌入内容数据的装置包括用于产生表示与水印对应的预定位模式的位的模式生成装置。指定位检测装置用于检测原始图像数据中的比特，作为可嵌入水印的指定比特。计算装置用于响应于预定位模式和指定位模式计算由指定位表示的期望位模式。可以通过给定的具有预定位模式的逻辑运算将期望的位模式转换成指定的位模式。混合装置用于改变指定的比特以表示所需的比特模式，以将原始图像数据转换为嵌入水印的图像数据。

6. 发明授权

US07961904B2 Apparatus for embedding and reproducing watermark into and from contents data 有权
标题翻译：水印嵌入和再现内容数据的装置
公开(公告)号：US07961904B2
公开(公告)日：2011-06-14
申请号：US11442222
申请日：2006-05-30
申请人： Takayuki Sugahara , Masayoshi Nishitani
发明人： Takayuki Sugahara , Masayoshi Nishitani
IPC分类号： G06K9/00 , H04N7/167
CPC分类号： G06T1/0057 , G06T2201/0051 , G06T2201/0061
摘要： An apparatus for embedding a watermark into contents data includes a parameter converting device for converting a parameter of first contents data to generate second contents data. A mixing device operates for embedding parameter information into the second contents data as watermark information. The parameter information represents a condition of the conversion of the parameter by the parameter converting device. The watermark information may include copyright information.
摘要翻译：一种用于将水印嵌入到内容数据中的装置包括用于转换第一内容数据的参数以生成第二内容数据的参数转换装置。混合装置用于将参数信息作为水印信息嵌入到第二内容数据中。参数信息表示由参数转换装置转换参数的条件。水印信息可以包括版权信息。

7. 发明申请

US20060215876A1 Apparatus for embedding and reproducing watermark into and from contents data 有权
公开(公告)号：US20060215876A1
公开(公告)日：2006-09-28
申请号：US11442222
申请日：2006-05-30
申请人： Takayuki Sugahara , Masayoshi Nishitani
发明人： Takayuki Sugahara , Masayoshi Nishitani
IPC分类号： G06K9/00
CPC分类号： G06T1/0057 , G06T2201/0051 , G06T2201/0061
摘要： An apparatus for embedding a watermark into contents data includes a parameter converting device for converting a parameter of first contents data to generate second contents data. A mixing device operates for embedding parameter information into the second contents data as watermark information. The parameter information represents a condition of the conversion of the parameter by the parameter converting device. The watermark information may include copyright information.

8. 发明授权

US06922442B2 Apparatus and method of encoding moving picture signal 有权
标题翻译：运动图像信号编码装置及方法
公开(公告)号：US06922442B2
公开(公告)日：2005-07-26
申请号：US10454677
申请日：2003-06-05
申请人： Kazuhiko Morita , Takayuki Sugahara , Mitsuaki Fujiwara
发明人： Kazuhiko Morita , Takayuki Sugahara , Mitsuaki Fujiwara
IPC分类号： H04N7/26 , H04N7/50 , H04N7/12
CPC分类号： H04N19/87 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/15 , H04N19/152 , H04N19/176 , H04N19/177 , H04N19/61
摘要： Input moving pictures are encoded with motion-compensated prediction. Detected first is an mount of codes generated for each encoded picture of the input moving pictures. Detected next is an average quantization scale factor of quantization scale factors used for quantizing the pictures of the input moving pictures when encoded. Also detected is picture characteristics of at least the input moving pictures. Complexity of each picture is calculated in response to the mount of codes generated for each picture, the average quantization scale factor and the picture characteristics. An amount of codes to be allocated to a present picture to be encoded is decided in response to the mount of codes generated for each picture, picture characteristics and the complexity of each picture, for obtaining a quantization scale factor for the present picture.
摘要翻译：输入运动图像用运动补偿预测编码。首先检测的是针对输入运动图像的每个编码图像生成的代码的安装。接下来检测的是用于在编码时量化输入运动图像的图像的量化比例因子的平均量化比例因子。还检测到至少是输入运动图像的图像特征。响应于针对每个图像生成的代码的安装，平均量化比例因子和图像特性来计算每个图像的复杂度。响应于针对每个图像生成的代码的安装，图像特性和每个图像的复杂度来决定要分配给要编码的当前图像的代码量，以获得用于当前图像的量化比例因子。

9. 发明授权

US06600783B1 Apparatus and method of encoding moving picture signal 有权
标题翻译：运动图像信号编码装置及方法
公开(公告)号：US06600783B1
公开(公告)日：2003-07-29
申请号：US09597485
申请日：2000-06-19
申请人： Kazuhiko Morita , Takayuki Sugahara , Mitsuaki Fujiwara
发明人： Kazuhiko Morita , Takayuki Sugahara , Mitsuaki Fujiwara
IPC分类号： H04N712
CPC分类号： H04N19/87 , H04N19/115 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/15 , H04N19/152 , H04N19/176 , H04N19/177 , H04N19/61
摘要： Input moving pictures are encoded with motion-compensated prediction. Detected first is an mount of codes generated for each encoded picture of the input moving pictures. Detected next is an average quantization scale factor of quantization scale factors used for quantizing the pictures of the input moving pictures when encoded. Also detected is picture characteristics of at least the input moving pictures. Complexity of each picture is calculated in response to the mount of codes generated for each picture, the average quantization scale factor and the picture characteristics. An amount of codes to be allocated to a present picture to be encoded is decided in response to the mount of codes generated for each picture, picture characteristics and the complexity of each picture, for obtaining a quantization scale factor for the present picture.
摘要翻译：输入运动图像用运动补偿预测编码。首先检测的是针对输入运动图像的每个编码图像生成的代码的安装。接下来检测的是用于在编码时量化输入运动图像的图像的量化比例因子的平均量化比例因子。还检测到至少是输入运动图像的图像特征。响应于针对每个图像生成的代码的安装，平均量化比例因子和图像特性来计算每个图像的复杂度。响应于针对每个图像生成的代码的安装，图像特性和每个图像的复杂度来决定要分配给要编码的当前图像的代码量，以获得用于当前图像的量化比例因子。

10. 发明授权

US06683989B1 Coding apparatus for recoding coded bit streams 有权
标题翻译：用于重新编码编码比特流的编码装置
公开(公告)号：US06683989B1
公开(公告)日：2004-01-27
申请号：US09599396
申请日：2000-06-22
申请人： Mitsuaki Fujiwara , Kazuhiko Morita , Takayuki Sugahara
发明人： Mitsuaki Fujiwara , Kazuhiko Morita , Takayuki Sugahara
IPC分类号： G06K936
CPC分类号： H04N19/40 , H04N19/115 , H04N19/126 , H04N19/14 , H04N19/147 , H04N19/149 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/192 , H04N19/196 , H04N19/197 , H04N19/60
摘要： A code amount of each block of primary-coded bit streams and a degree of complexity of image using quantization coefficients, i.e., a degree of difficulty in coding are calculated. Then, recoding is performed by setting a target code amount every block based on the degree of difficulty in coding, and thus secondary-coded bit streams with uniform picture quality can be generated while suppressing the influence of code amount control of the primary-coded bit streams.
摘要翻译：计算原始编码比特流的每个块的代码量和使用量化系数的图像的复杂程度，即编码难度。然后，通过基于编码的难易度设定每个块的目标代码量进行重新编码，从而可以在抑制主编码位的代码量控制的影响的同时产生具有均匀图像质量的二次编码比特流流。

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