公开(公告)号：KR1020020036657A

公开(公告)日：2002-05-16

申请号：KR1020010034304

申请日：2001-06-18

Applicant: 알파로직스(주)

Inventor： 조영선 ,  남영식 ,  이우진 ,  박석진 ,  강희석

IPC: H04N1/387

CPC classification number: H04N1/644 ,  H04N1/00843 ,  H04N1/00864 ,  H04N1/4486 ,  H04N1/58

Abstract: PURPOSE: A coding method with pixel units is provided to disassemble inputted information with pixel units to make the information a puzzle, to irregularly change locations, and to irregularly convert colors to code in multi stages, so as to make impossible to decode the information. CONSTITUTION: A screen input unit inputs information such as an image or text(401). A security code input unit inputs a security code(402). A random number generator or a random number map generator generates a random number map(403). The inputted image is normalized by controlling colors, resolution, critical values, and the size(404). The normalized image is disassembled to pixel units(405). Disassembled pixels are coded in multi stages(406). The inputted security code is coded to generate a code key(407). The code key is inserted into a coded image(408). The coded image is output(409).

Abstract translation: 目的：提供具有像素单元的编码方法，以像素单元反汇编输入的信息，使信息成为难题，不规则地改变位置，并将颜色不规则地转换为代码，从而不可能对信息进行解码。 构成：屏幕输入单元输入诸如图像或文本的信息（401）。 安全码输入单元输入安全码（402）。 随机数生成器或随机数映射生成器生成随机数映射（403）。 通过控制颜色，分辨率，临界值和大小来对输入的图像进行归一化（404）。 归一化图像被分解成像素单元（405）。 拆卸的像素以多级编码（406）。 输入的安全码被编码以生成代码密钥（407）。 代码键被插入到编码图像（408）中。 编码图像被输出（409）。

公开(公告)号：KR100437448B1

公开(公告)日：2004-06-23

申请号：KR1020020009980

申请日：2002-02-25

Applicant: 한국조폐공사 ,  알파로직스(주)

Inventor： 송병규 ,  류일녕 ,  채종훈 ,  최원균 ,  김길연 ,  정만기 ,  조영선 ,  남영식 ,  이우진 ,  강희석 ,  정현호 ,  임지운

IPC: G03G21/04

Abstract: PURPOSE: Prints for preventing duplication and forgery of a video information encoded image according to representation of a latent image and a method for forming the prints are provided to easily judge a forgery. CONSTITUTION: A random number map is generated, and a security code is inputted. An image is inputted to a processor, and the color, size and region of the inputted image are adjusted and normalized. The normalized image is divided into R, G and B components using the random number map. The first coding of making each of the components a square puzzle is carried out. The second coding of imaging the coded information to a single-gradation map is performed. The third coding of combining the imaged information in unit of the basic components to make a square, triangle or circular puzzle or convert the basic components into a single pixel is executed. A coding key code is inserted into the coded image. Video information image is coded and inputted to a processor. Gradient correction, size correction and coding key code of the inputted image are extracted. The security code is inputted or extracted from the coded image. The image is decoded and restored.

Abstract translation: 目的：根据潜像的表现来防止复制和伪造视频信息编码图像的打印以及用于形成打印的方法被提供以容易地判断伪造。 构成：生成随机数字地图，输入安全码。 图像被输入到处理器，并且输入图像的颜色，大小和区域被调整和归一化。 归一化后的图像使用随机数字图分为R，G和B分量。 将每个组件制作成方形拼图的第一个编码被执行。 执行将编码信息成像到单灰度图的第二编码。 执行将以基本部件为单位的成像信息组合成正方形，三角形或圆形拼图或将基本部件转换为单个像素的第三编码。 编码密钥被插入到编码图像中。 视频信息图像被编码并输入到处理器。 提取输入图像的梯度校正，尺寸校正和编码密钥。 安全码是从编码图像输入或提取的。 图像被解码并恢复。

公开(公告)号：KR100526411B1

公开(公告)日：2005-11-08

申请号：KR1020020040807

申请日：2002-07-12

Applicant: 알파로직스(주)

Inventor： 남영식 ,  이우진 ,  강희석

IPC: H04N21/2347

Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 영상 데이터의 암호화 및/또는 복호화 장치 및 그 방법과 상기 방법들을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 영상 데이터를 압축한 후에 영상 데이터만을 이용하여 암호화 과정을 수행하는 종래의 방식과 달리, 영상 데이터와 데이터의 위치정보를 이용하는 퍼즐식 암호화 방식을 이용하여 영상 데이터를 암호화한 후에 손실 또는 혼성 압축을 하여 복호화 과정에서 추론이 불가능하도록 함으로써, 전용 해독장치를 이용하지 않고는 해독이 불가능한 영상 데이터 암호화 및/또는 복호화 장치 및 그 방법과 상기 방법들을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하는데 그 목적이 있음.
3. 발명의 해결방법의 요지
본 발명은, 영상 데이터 암복호화 장치에 있어서, 암호화를 위한 영상 데이터를 입력받기 위한 영상 입력 수단; 상기 입력받은 영상 데이터를 퍼즐화하여 암호화하기 위한 암호화 수단; 상기 암호화한 영상 데이터 중 일부의 손실을 감수하고서 고비율로 압축하기 위한 영상 압축 수단; 상기 암호화한 후에 압축한 영상 데이터를 전달받아 압축을 해제하기 위한 압축 해제 수단; 상기 압축을 해제한 영상 데이터를 역퍼즐화하여 복호화하기 위한 복호화 수단; 및 상기 복호화한 영상 데이터를 출력하기 위한 영상 출력 수단을 포함한다.
4. 발명의 중요한 용도
본 발명은 영상 데이터의 보안 등에 이용됨.

公开(公告)号：KR1020040006514A

公开(公告)日：2004-01-24

申请号：KR1020020040807

申请日：2002-07-12

Applicant: 알파로직스(주)

Inventor： 남영식 ,  이우진 ,  강희석

IPC: H04N21/2347

CPC classification number: H04N21/2347 ,  H04N7/18 ,  H04N21/4405

Abstract: PURPOSE: An encoding/decoding device and a method thereof for image data are provided to prevent the interference in the decoding by the lossy or hybrid compression after carrying out puzzle type coding for image data according to position information of the data, thereby preventing the data decoding if any exclusive decoder is not used. CONSTITUTION: A coding/decoding device for image data includes an image input part(210) for receiving digitalized image data or converting analog image data to digital image data, and a puzzle type encoder(220) for puzzling and encoding the image data input via the image input part by encoding keys, security keys, random number algorithm and the like. An image compression part(230) compresses the encoded image data by any one of lossy compression, lossless compression or hybrid compression. A compression releasing part(2430) releases the compression by carrying out the puzzle type encoding operation reversely. A reverse puzzle type decoding part(250) decodes the image data of which compression is released by using the encoding keys, the security keys, and the random number algorithm reversely. An image output part(260) outputs the decoded image data in the digital or analog form.

Abstract translation: 目的：提供一种用于图像数据的编码/解码装置及其方法，以根据数据的位置信息对图像数据执行拼图类型编码之后，通过有损或混合压缩来防止解码中的干扰，从而防止数据 如果不使用任何排他解码器，则进行解码。 构成：用于图像数据的编码/解码装置包括用于接收数字化图像数据或将模拟图像数据转换为数字图像数据的图像输入部分（210），以及拼图型编码器（220），用于对经由 图像输入部分通过编码密钥，安全密钥，随机数算法等。 图像压缩部件（230）通过有损压缩，无损压缩或混合压缩中的任何一个压缩编码图像数据。 压缩释放部分（2430）通过相反地执行拼图型编码操作来释放压缩。 反向拼图型解码部件（250）通过使用编码键，安全密钥和随机数算法相反地解码压缩被解除的图像数据。 图像输出部（260）以数字或模拟形式输出解码图像数据。

公开(公告)号：KR100407464B1

公开(公告)日：2003-11-28

申请号：KR1020010034304

申请日：2001-06-18

Applicant: 알파로직스(주)

Inventor： 조영선 ,  남영식 ,  이우진 ,  박석진 ,  강희석

IPC: H04N1/387

Abstract: PURPOSE: A coding method with pixel units is provided to disassemble inputted information with pixel units to make the information a puzzle, to irregularly change locations, and to irregularly convert colors to code in multi stages, so as to make impossible to decode the information. CONSTITUTION: A screen input unit inputs information such as an image or text(401). A security code input unit inputs a security code(402). A random number generator or a random number map generator generates a random number map(403). The inputted image is normalized by controlling colors, resolution, critical values, and the size(404). The normalized image is disassembled to pixel units(405). Disassembled pixels are coded in multi stages(406). The inputted security code is coded to generate a code key(407). The code key is inserted into a coded image(408). The coded image is output(409).

Abstract translation: 目的：提供一种具有像素单元的编码方法，用像素单元分解输入的信息，以使信息变成拼图，不规则地改变位置，并且不规则地将颜色转换为多级编码，从而不可能解码信息。 构成：屏幕输入单元输入诸如图像或文本的信息（401）。 安全码输入单元输入安全码（402）。 随机数发生器或随机数图生成器生成随机数字图（403）。 输入的图像通过控制颜色，分辨率，临界值和大小来标准化（404）。 归一化的图像被拆分为像素单元（405）。 拆分的像素以多个阶段编码（406）。 输入的安全码被编码以产生密钥（407）。 代码密钥被插入编码图像（408）。 编码图像被输出（409）。

公开(公告)号：KR1020030070439A

公开(公告)日：2003-08-30

申请号：KR1020020009980

申请日：2002-02-25

Applicant: 한국조폐공사 ,  알파로직스(주)

Inventor： 송병규 ,  류일녕 ,  채종훈 ,  최원균 ,  김길연 ,  정만기 ,  조영선 ,  남영식 ,  이우진 ,  강희석 ,  정현호 ,  임지운

IPC: G03G21/04

Abstract: PURPOSE: Prints for preventing duplication and forgery of a video information encoded image according to representation of a latent image and a method for forming the prints are provided to easily judge a forgery. CONSTITUTION: A random number map is generated, and a security code is inputted. An image is inputted to a processor, and the color, size and region of the inputted image are adjusted and normalized. The normalized image is divided into R, G and B components using the random number map. The first coding of making each of the components a square puzzle is carried out. The second coding of imaging the coded information to a single-gradation map is performed. The third coding of combining the imaged information in unit of the basic components to make a square, triangle or circular puzzle or convert the basic components into a single pixel is executed. A coding key code is inserted into the coded image. Video information image is coded and inputted to a processor. Gradient correction, size correction and coding key code of the inputted image are extracted. The security code is inputted or extracted from the coded image. The image is decoded and restored.

Abstract translation: 目的：提供用于防止根据潜像的表示的图像信息编码图像的重复和伪造以及用于形成打印的方法的打印以容易地判断伪造。 构成：生成随机数映射，并输入安全码。 将图像输入到处理器，并且调整和归一化输入图像的颜色，尺寸和区域。 使用随机数映射将归一化图像分为R，G和B分量。 执行使每个组件成为正方形拼图的第一编码。 执行将编码信息成像为单一灰度图的第二编码。 执行将基本组件单位的成像信息组合以形成正方形，三角形或圆形拼图或将基本组件转换为单个像素的第三编码。 将编码关键码插入到编码图像中。 视频信息图像被编码并输入到处理器。 提取输入图像的梯度校正，尺寸校正和编码键码。 从编码图像输入或提取安全码。 图像被解码和恢复。

公开(公告)号：KR1020020083882A

公开(公告)日：2002-11-04

申请号：KR1020010028787

申请日：2001-05-24

Applicant: 알파로직스(주)

Inventor： 조영선 ,  남영식 ,  이우진 ,  강희석 ,  박석진

IPC: G09C5/00

Abstract: PURPOSE: A device and a method for carrying out coding/decoding by using basic elements of pixels and a system and a method for encryption/decryption thereof are provided to make the reading of image and text information without any exclusive reading system by coding the information into basic element units of pixels according to random number algorithm and coding algorithm. CONSTITUTION: A coding method using the basic elements of pixels includes the steps of receiving information for coding(401), generating a random number map(403), discompositing coding object information into basic element units of pixels(405), coding the discomposited pixel basic elements by changing the positions of the pixel basic element by using the produced random number map and changing the color of the basic elements by using a gray level map(406), and outputting the coded information(409).

Abstract translation: 目的：提供一种通过使用像素的基本元素和系统进行编码/解码的装置和方法及其加密/解密方法，以通过对信息进行编码来进行图像和文本信息的读取，而不需要任何专用读取系统 根据随机数算法和编码算法，将基本元素单位转换为像素。 构成：使用像素的基本元素的编码方法包括以下步骤：接收用于编码的信息（401），生成随机数映射（403），将编码对象信息解密成像素的基本元素单元（405），编码不合并像素 通过使用所产生的随机数映射来改变像素基本元素的位置并通过使用灰度图（406）来改变基本元素的颜色，并输出编码信息（409），从而生成基本元素。

公开(公告)号：KR100457963B1

公开(公告)日：2004-11-18

申请号：KR1020010034176

申请日：2001-06-16

Applicant: 한국조폐공사 ,  알파로직스(주)

Inventor： 송병규 ,  류일녕 ,  채종훈 ,  최원균 ,  김길연 ,  조영선 ,  남영식 ,  이우진 ,  강희석 ,  박석진

IPC: D21H21/44

Abstract: PURPOSE: A method of preparing a printed material by insertion of copy and forgery preventing techniques for displaying a latent image into encryption techniques of image information using a safety cord of individuals, encrypted key cord of organs, encrypted algorithm and random number algorithm and step-like map is provided. By providing a decoding apparatus for easily identify forgery, the discrimination of forgery by the naked eye or a device is easily achieved. CONSTITUTION: The method comprises the steps: a first encryption for forming a random number map, inputting a safety cord, inputting an image into a treating apparatus, normalizing the input image, decomposing the normalized image into a picture element; a second encryption for mapping the encrypted information; a third encryption for changing a basic element to a picture element; an insertion for inserting a latent image displaying mark on a puzzle pattern; an insertion for inserting an encryption key cord on the encrypted image; an encryption for encrypting the image information image; an input for inputting the encrypted image into the treating apparatus; a normalization for normalizing the inputted image; an extraction for inputting the inputted safety cord and extracting on an encrypted image; and a decryption and restoration.

Abstract translation: 目的：通过插入用于将潜像显示成使用个人安全绳的加密技术的图像复制和伪造技术，加密的器官钥匙绳，加密算法和随机数算法以及逐步加密技术来制备印刷材料的方法， 如地图提供。 通过提供用于容易识别伪造的解码装置，可以容易地实现通过肉眼或装置进行的伪造识别。 构成：该方法包括以下步骤：第一加密，用于形成随机数字图，输入安全绳，将图像输入到处理设备中，对输入图像进行归一化，将归一化图像分解成图像元素; 用于映射加密信息的第二加密; 用于将基本元素改变为图像元素的第三加密; 用于将潜像显示标记插入拼图图案的插入物; 用于在加密图像上插入加密密钥的插入; 用于加密图像信息图像的加密; 用于将加密图像输入处理设备的输入; 归一化输入图像的归一化; 提取用于输入输入的安全绳并提取加密的图像; 并进行解密和恢复。

公开(公告)号：KR100396825B1

公开(公告)日：2003-09-02

申请号：KR1020010028787

申请日：2001-05-24

Applicant: 알파로직스(주)

Inventor： 조영선 ,  남영식 ,  이우진 ,  강희석 ,  박석진

IPC: G09C5/00

Abstract: PURPOSE: A device and a method for carrying out coding/decoding by using basic elements of pixels and a system and a method for encryption/decryption thereof are provided to make the reading of image and text information without any exclusive reading system by coding the information into basic element units of pixels according to random number algorithm and coding algorithm. CONSTITUTION: A coding method using the basic elements of pixels includes the steps of receiving information for coding(401), generating a random number map(403), discompositing coding object information into basic element units of pixels(405), coding the discomposited pixel basic elements by changing the positions of the pixel basic element by using the produced random number map and changing the color of the basic elements by using a gray level map(406), and outputting the coded information(409).

Abstract translation: 目的：提供一种通过使用像素和系统的基本元素来执行编码/解码的设备和方法以及用于其加密/解密的方法，以通过对信息进行编码而在没有任何专用读取系统的情况下读取图像和文本信息 根据随机数算法和编码算法将其转换为像素的基本单元。 构成：使用像素的基本单元的编码方法包括以下步骤：接收用于编码的信息（401），生成随机数字映射（403），将编码对象信息分解成像素的基本单元单元（405），编码分离的像素 通过使用产生的随机数字图改变像素基本元素的位置并通过使用灰度级图改变基本元素的颜色（406），并且输出编码信息（409）来生成基本元素。

公开(公告)号：KR1020020096115A

公开(公告)日：2002-12-31

申请号：KR1020010034176

申请日：2001-06-16

Applicant: 한국조폐공사 ,  알파로직스(주)

Inventor： 송병규 ,  류일녕 ,  채종훈 ,  최원균 ,  김길연 ,  조영선 ,  남영식 ,  이우진 ,  강희석 ,  박석진

IPC: D21H21/44

Abstract: PURPOSE: A method of preparing a printed material by insertion of copy and forgery preventing techniques for displaying a latent image into encryption techniques of image information using a safety cord of individuals, encrypted key cord of organs, encrypted algorithm and random number algorithm and step-like map is provided. By providing a decoding apparatus for easily identify forgery, the discrimination of forgery by the naked eye or a device is easily achieved. CONSTITUTION: The method comprises the steps: a first encryption for forming a random number map, inputting a safety cord, inputting an image into a treating apparatus, normalizing the input image, decomposing the normalized image into a picture element; a second encryption for mapping the encrypted information; a third encryption for changing a basic element to a picture element; an insertion for inserting a latent image displaying mark on a puzzle pattern; an insertion for inserting an encryption key cord on the encrypted image; an encryption for encrypting the image information image; an input for inputting the encrypted image into the treating apparatus; a normalization for normalizing the inputted image; an extraction for inputting the inputted safety cord and extracting on an encrypted image; and a decryption and restoration.

Abstract translation: 目的：通过使用个人的安全绳，加密的琴键，加密算法和随机数算法以及步进算法，插入复制防伪技术，将潜像显示在图像信息的加密技术中， 像地图一样。 通过提供用于容易识别伪造的解码装置，容易实现肉眼或装置对伪造品的辨别。 方法：该方法包括以下步骤：形成随机数映射的第一加密，输入安全绳，将图像输入到处理装置中，对输入图像进行归一化，将归一化图像分解为图像元素; 用于映射加密信息的第二加密; 用于将基本元素改变为图像元素的第三加密; 将潜像显示标记插入到拼图图形上的插入; 用于在加密图像上插入加密密钥线的插入; 用于加密图像信息图像的加密; 用于将加密图像输入到处理装置中的输入; 用于归一化输入图像的归一化; 用于输入输入的安全绳并提取加密图像的提取; 并进行解密和恢复。