公开(公告)号：US20100013679A1

公开(公告)日：2010-01-21

申请号：US12177096

申请日：2008-07-21

申请人： YI-SHIN TUNG ,  SUNG-WEN WANG ,  YI-CHIN HUANG ,  JA-LING WU

发明人： YI-SHIN TUNG ,  SUNG-WEN WANG ,  YI-CHIN HUANG ,  JA-LING WU

IPC分类号： H03M7/40

CPC分类号： H03M7/425

摘要： A decoder for decoding a message using an arbitrary-side growing (ASG) Huffman tree including a plurality of codewords and symbols includes a database, a processing module, and a bit pattern matching module. The database stores a plurality of parameters corresponding to the ASG Huffman tree divided into several sub-trees according to a Hashemian cut operation and a bits-pattern-Xor (BPX) operation. The plurality of parameters include a bit pattern of a sub-tree of the ASG Huffman tree divided according to the BPX operation and a code length of the bit pattern. The processing module receives a bit stream corresponding to the ASG Huffman tree from an encoder. The bit pattern matching module selects bits from the bit stream according to the code length of the bit pattern and decodes the selected bits into a symbol in the ASG Huffman tree by comparing the selected bits with the bit pattern.

摘要翻译： 使用包括多个码字和符号的任意侧增长（ASG）霍夫曼树来解码消息的解码器包括数据库，处理模块和位模式匹配模块。 数据库根据哈希姆切割操作和比特模式Xor（BPX）操作，将与ASG霍夫曼树相对应的多个参数存储为几个子树。 多个参数包括根据BPX操作划分的ASG霍夫曼树的子树的位模式和位模式的代码长度。 处理模块从编码器接收对应于ASG霍夫曼树的比特流。 比特模式匹配模块根据比特模式的码长选择比特流中的比特，并通过将所选择的比特与比特模式进行比较，将所选择的比特解码成ASG霍夫曼树中的符号。

公开(公告)号：US06600830B1

公开(公告)日：2003-07-29

申请号：US09441607

申请日：1999-11-16

申请人： Chun-Hung Lin ,  Ja-Ling Wu

发明人： Chun-Hung Lin ,  Ja-Ling Wu

IPC分类号： G06K900

CPC分类号： G06K9/00268

摘要： An automatic feature extraction system for analyzing a face image and finding the facial features of the face. In the pre-processing stage, a second-chance region growing method is applied to determine a face region on the face image. In the feature extraction stage, three primary facial features, including both eyes and the mouth, are extracted first. Then other facial features can be extracted according to these extracted primary facial features. Searching feature points can be achieved by calculating the cost function of each point using a simple feature template. In addition, a genetic algorithm can be used to accelerate the process of searching feature points.

摘要翻译： 一种自动特征提取系统，用于分析面部图像并找到面部的面部特征。 在预处理阶段，应用第二机会区域生长方法来确定面部图像上的面部区域。 在特征提取阶段，首先提取包括眼睛和嘴巴在内的三个主要面部特征。 然后可以根据这些提取的主要面部特征提取其他面部特征。 通过使用简单的特征模板计算每个点的成本函数可以获得搜索特征点。 另外，遗传算法可以用来加快搜索特征点的过程。

公开(公告)号：US20090052793A1

公开(公告)日：2009-02-26

申请号：US12142721

申请日：2008-06-19

申请人： Chun-Hsiang Huang ,  Shang-Chih Chuang ,  Ja-Ling Wu

发明人： Chun-Hsiang Huang ,  Shang-Chih Chuang ,  Ja-Ling Wu

IPC分类号： G06K9/54

CPC分类号： G06T1/0028 ,  G06T2201/0051

摘要： Digital content processing methods and systems are provided. First, an image property and a specific value corresponding to the image property are determined according to an image enhancement operation. Then, a specific region is sought within a first digital content, wherein pixels in the specific region have the specific value corresponding to the image property. Specific information is embedded in the specific region of the first digital content to generate a second digital content having the specific information. A digital content playback device performs the image enhancement operation on the second digital content to obtain the specific information.

摘要翻译： 提供数字内容处理方法和系统。 首先，根据图像增强操作来确定对应于图像特性的图像特性和特定值。 然后，在第一数字内容中寻找特定区域，其中特定区域中的像素具有对应于图像属性的特定值。 特定信息被嵌入在第一数字内容的特定区域中，以产生具有特定信息的第二数字内容。 数字内容回放设备对第二数字内容执行图像增强操作以获得特定信息。

公开(公告)号：US20080307227A1

公开(公告)日：2008-12-11

申请号：US11758725

申请日：2007-06-06

申请人： Chun-Hsiang Huang ,  Ja-Ling Wu

发明人： Chun-Hsiang Huang ,  Ja-Ling Wu

IPC分类号： H04L9/00

CPC分类号： G06T1/005 ,  G06T1/0028 ,  G06T2201/0065 ,  G06T2201/0202

摘要： A novel steganographic approach analogous to the real-world secret communication mechanism, in which messages to be concealed are written on white papers using invisible ink like lemon juice or milk and are revealed only after the papers are heated, is proposed. Carefully designed informed-embedders now play the role of “invisible ink”; some pre-negotiated attacks that can be provided by common content processing tools correspond to required “heating” process. Theoretic models and feasible implementations of the proposed digital-invisible-ink (DII) watermarking approach are provided. The proposed DII watermarking schemes can prevent the supervisor from interpreting secret messages even the watermark extractor, decryption tool, as well as session keys are available to the supervisor. Furthermore, under certain steganographic application scenarios, secret communication systems employing the DII watermarking schemes can aggressively mislead the channel supervisor with fake payloads and transmit genuine secrets at the same time.

摘要翻译： 一种类似于真实秘密通信机制的新颖的隐写方法，其中隐藏的消息是使用隐形墨像柠檬汁或牛奶写在白皮书上，并且仅在纸被加热之后才被揭示。 仔细设计的知情嵌体现在扮演“隐形墨水”的角色; 一些可以由通用内容处理工具提供的预先协商的攻击对应于所需的“加热”过程。 提出了提出的数字不可见墨水（DII）水印方法的理论模型和可行的实现。 即使水印提取器，解密工具以及会话密钥对主管也是可用的，所以提出的DII水印方案可以防止主管人员解密秘密信息。 此外，在某些隐写应用场景下，采用DII水印方案的秘密通信系统可能会以假的有效载荷对信道主管造成误导，同时传输真实的秘密。

公开(公告)号：US20080232697A1

公开(公告)日：2008-09-25

申请号：US11889612

申请日：2007-08-15

申请人： Jun-Cheng Chen ,  Wei-Ta Chu ,  Jin-Hau Kuo ,  Chung-Yi Weng ,  Ja-Ling Wu

发明人： Jun-Cheng Chen ,  Wei-Ta Chu ,  Jin-Hau Kuo ,  Chung-Yi Weng ,  Ja-Ling Wu

IPC分类号： G06K9/62

CPC分类号： G06F16/433 ,  G06F16/434 ,  G06F16/4393 ,  G06F16/48

摘要： A system to display automatically organized images coordinating with pace of background music is disclosed. Users only need to give images and a music clip, and the system will automatically generate a presentation that combines visual and aural effects to display the organized images synchronously accompanying the music. Multiple images that have similar characteristics are well arranged and displayed at the same frame to emphasize the atmosphere of viewing experience. In addition, collaborative presentation of images that is synchronous to music even improves the enjoyment of image browsing.

摘要翻译： 公开了一种显示与背景音乐节奏协调的自动组织图像的系统。 用户只需要提供图像和音乐剪辑，系统将自动生成一个结合视觉和听觉效果的演示文稿，以便随着音乐同步显示有组织的图像。 具有相似特征的多个图像被很好地排列并显示在同一帧上，以强调观看​​体验的气氛。 此外，与音乐同步的图像的协同呈现甚至改善了图像浏览的享受。

公开(公告)号：US06700991B1

公开(公告)日：2004-03-02

申请号：US09520058

申请日：2000-03-07

申请人： Ja-Ling Wu ,  Chiou-Ting Hsu

发明人： Ja-Ling Wu ,  Chiou-Ting Hsu

IPC分类号： G06K900

CPC分类号： G06T1/0071 ,  G06T2201/0052 ,  G06T2201/0061

摘要： An image authentication method by embedding digital watermarks into images, comprising: providing an original image and a watermark image; applying pseudo-random permutations to the watermark image for generating a dispersed watermark image; applying block-based permutations to the original image and the dispersed watermark image in order to form a plurality of original image blocks with each of the watermark blocks dispersed over the corresponding image block only; applying FDCT (Forward Discrete Cosine Transform) on each of the original image blocks independently so that each of the original image blocks is transformed into a DCT coefficient block that corresponds to different frequency ranges; embedding said watermark image blocks into said DCT coefficient blocks, in order to form a plurality of combined DCT coefficient blocks; applying IDCT (Inverse Discrete Cosine Transform) to the combined DCT coefficient blocks to form an embedded watermark image.

摘要翻译： 一种通过将数字水印嵌入到图像中的图像认证方法，包括：提供原始图像和水印图像; 对水印图像应用伪随机排列以产生分散的水印图像; 对原始图像和分散水印图像应用基于块的排列，以便形成多个原始图像块，其中每个水印块仅分散在对应的图像块上; 对每个原始图像块独立地应用FDCT（前向离散余弦变换），使得每个原始图像块被变换成对应于不同频率范围的DCT系数块; 将所述水印图像块嵌入所述DCT系数块中，以形成多个组合DCT系数块; 将IDCT（逆离散余弦变换）应用于组合的DCT系数块以形成嵌入的水印图像。

公开(公告)号：US07663512B2

公开(公告)日：2010-02-16

申请号：US12177096

申请日：2008-07-21

申请人： Yi-Shin Tung ,  Sung-Wen Wang ,  Yi-Chin Huang ,  Ja-Ling Wu

发明人： Yi-Shin Tung ,  Sung-Wen Wang ,  Yi-Chin Huang ,  Ja-Ling Wu

IPC分类号： H03M7/40

CPC分类号： H03M7/425

摘要： A decoder for decoding a message using an arbitrary-side growing (ASG) Huffman tree including a plurality of codewords and symbols includes a database, a processing module, and a bit pattern matching module. The database stores a plurality of parameters corresponding to the ASG Huffman tree divided into several sub-trees according to a Hashemian cut operation and a bits-pattern-Xor (BPX) operation. The plurality of parameters include a bit pattern of a sub-tree of the ASG Huffman tree divided according to the BPX operation and a code length of the bit pattern. The processing module receives a bit stream corresponding to the ASG Huffman tree from an encoder. The bit pattern matching module selects bits from the bit stream according to the code length of the bit pattern and decodes the selected bits into a symbol in the ASG Huffman tree by comparing the selected bits with the bit pattern.

摘要翻译： 使用包括多个码字和符号的任意侧增长（ASG）霍夫曼树来解码消息的解码器包括数据库，处理模块和位模式匹配模块。 数据库根据哈希姆切割操作和比特模式Xor（BPX）操作，将与ASG霍夫曼树相对应的多个参数存储为几个子树。 多个参数包括根据BPX操作划分的ASG霍夫曼树的子树的位模式和位模式的代码长度。 处理模块从编码器接收对应于ASG霍夫曼树的比特流。 比特模式匹配模块根据比特模式的码长选择比特流中的比特，并通过将所选择的比特与比特模式进行比较，将所选择的比特解码成ASG霍夫曼树中的符号。

公开(公告)号：US06229460B1

公开(公告)日：2001-05-08

申请号：US09442167

申请日：1999-11-16

申请人： Chien-Wu Tsai ,  Ja-Ling Wu ,  Shu-Wei Liu

发明人： Chien-Wu Tsai ,  Ja-Ling Wu ,  Shu-Wei Liu

IPC分类号： H03M740

CPC分类号： H03M7/40 ,  H04N19/69

摘要： A method of generating a symmetrical reversible variable length code. This symmetrical reversible variable length code is derived from an original variable length code. Compared with the conventional generating method, the novel method is independent of the bit alignment patterns of the codeword of the original variable length code. In addition, the assignment of codewords of the symmetrical reversible variable length code is performed by a selection priority. Therefore, the overall coding efficiency is improved.

摘要翻译： 一种产生对称可逆可变长度码的方法。 该对称的可逆可变长度码是从原始可变长度码导出的。 与常规生成方法相比，新颖的方法与原始可变长度码的码字的位对齐模式无关。 此外，通过选择优先级来执行对称可逆可变长度码的码字的分配。 因此，总体编码效率提高。