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公开(公告)号：KR101362449B1
公开(公告)日：2014-02-12
申请号：KR1020120116523
申请日：2012-10-19
Applicant: 국방과학연구소
IPC: H04N21/8358
CPC classification number: H04N21/8358
Abstract: The present invention relates to a digital watermarking device capable of distinguishing concealment and falsification of video information. The present invention includes a first insertion unit inserting a robust watermark for concealing information into one or more frames of video content and a second insertion unit inserting a semi-fragile watermark for distinguishing the concealment and the falsification into one or more frames of the video content. The present invention can efficiently distinguish the concealment and the falsification of the video information. [Reference numerals] (10) First insertion unit; (20) Second insertion unit; (30) First detection unit; (40) Second detection unit
Abstract translation: 本发明涉及能够区分视频信息的隐藏和伪造的数字水印装置。 本发明包括：第一插入单元，插入用于将信息隐藏到一个或多个视频内容帧中的鲁棒水印;以及第二插入单元，插入用于将隐藏和伪造区分为视频内容的一个或多个帧的半脆弱水印 。 本发明可以有效地区分视频信息的隐藏和伪造。 （附图标记）（10）第一插入单元; （20）第二插入单元; （30）第一检测单元; （40）第二检测单元
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公开(公告)号：KR102198951B1
公开(公告)日：2021-01-05
申请号：KR1020200061146
申请日：2020-05-21
Applicant: 국방과학연구소
Abstract: 음향신호를신호처리하여생성한소나그램에서토널영역을설정하고, 설정된토널영역의픽셀을토널신호픽셀로결정하고, 이를병합하여토널신호영상을생성함으로써토널신호를픽셀단위로식별하는방법및 장치가개시된다. 본개시에따르면, 소나그램으로부터토널신호를픽셀단위로신속·정확하게식별하여해양물체를탐지하는시간을단축하고, 탐지정확도를향상시킬수 있다.
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公开(公告)号：KR102012376B1
公开(公告)日：2019-08-20
申请号：KR1020180008172
申请日：2018-01-23
Applicant: 국방과학연구소 , 아주대학교산학협력단
IPC: H04N21/443 , H04N21/4402 , H04N5/63
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公开(公告)号：KR101907678B1
公开(公告)日：2018-10-12
申请号：KR1020180000025
申请日：2018-01-02
Applicant: 국방과학연구소
CPC classification number: H04W72/10 , H04W72/0453 , H04W72/082
Abstract: 본발명은주파수할당기술에관한것으로, 무선네트워크상의무선링크의신호대 간섭및 잡음비(Signal to Interference and Noise Ratio)를기초로, 상기무선링크에대한충돌링크를추출하는충돌링크추출부; 상기충돌링크추출부의충돌링크추출결과를기초로주파수할당을위한링크그룹을설정하고, 상기링크그룹별로상기주파수할당에관한우선순위를결정하는우선순위스케줄러; 및상기우선순위가높은링크그룹부터순차적으로링크그룹내의각각의링크에주파수를할당하는주파수할당부를포함할수 있다.
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Patent Agency Ranking
公开(公告)号：KR1020150130030A
公开(公告)日：2015-11-23
申请号：KR1020140057048
申请日：2014-05-13
Applicant: 국방과학연구소
IPC: G06T1/00
CPC classification number: G06T7/90 , G06T7/0002 , G06T7/44
Abstract: 본발명은디지털이미지판별기술에관한것으로서, 더상세하게는하나의디지털이미지로부터컬러필터배열을추정하는컬러필터배열판별방법및 장치에대한것이다.
Abstract translation: 本发明涉及数字图像判断技术，更具体地说，涉及一种从一个数字图像估计滤色器阵列及其装置的滤色器阵列的判断方法。 该方法包括：获得单个图像信息的步骤; 通过使用单个图像信息来估计滤色器阵列的形状的步骤; 根据中间值条件对多个像素进行计数的步骤; 首先确定绿色通道的位置的步骤; 确定剩余的红色和蓝色通道的位置的步骤; 通过块单元估计滤色器阵列的步骤; 以及确定图像是否被所估计的滤色器阵列伪造的步骤。
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6.发明公开
公开(公告)号：KR1020150117874A
公开(公告)日：2015-10-21
申请号：KR1020140043545
申请日：2014-04-11
Applicant: 국방과학연구소
IPC: G06F21/32
CPC classification number: G06F21/31
Abstract: 본발명은사용자인증기술에관한것으로서, 더상세하게는생체정보와공개키정보를사용하여중간자공격에강인하며생체정보유출위험이없는생체정보융합공개키기반사용자인증방법및 장치에대한것이다.
Abstract translation: 本发明涉及一种用户认证技术，更具体地说，涉及一种基于与生物特征信息结合的公开密钥的用户认证方法及其装置。 本发明通过使用生物特征信息和公开密钥信息来抵抗中间人攻击。 用户认证方法包括以下步骤：从生物特征信息计算伪泽尼克斯矩; 计算计算的Zernike矩的可靠性; 量化计算可靠性的伪泽尼克斯力矩; 从一组量化的Zernike量子提取具有最高可靠性的伪Zernike矩; 通过使用所提取的伪Zernike矩来生成通过将生物特征信息与公开密钥信息组合而编码的属性值; 并通过使用编码的属性值来认证用户。
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公开(公告)号：KR101311309B1
公开(公告)日：2013-09-25
申请号：KR1020120038125
申请日：2012-04-12
Applicant: 국방과학연구소
IPC: G06T7/00
CPC classification number: G06T7/0002 , H04N5/3651 , H04N2201/325
Abstract: PURPOSE: An image manipulation detection method and a device thereof are provided to detect whether a target image, which is examined, is manipulated or not by extracting Photo Response Non-Uniformity (PRNU) from the target image and extracting a correlation plane based on the extracted value. CONSTITUTION: An image manipulation detection device calculates the change rate of the size of a target image which is examined and restores the target image (S210). The image manipulation detection device extracts Photo Response Non-Uniformity (PRNU) from the target image (S220). The image manipulation detection device calculates Peak to Correlation Energy (PCE) using a correlation plane which is obtained by comparing the extracted PRNU and standard PRNU (S230, S240). The image manipulation detection device determines whether the device which photographed the target image is a standard device or not by comparing the calculated PCE and the standard PCE of the standard device (S250). [Reference numerals] (S210) Calculate the change rate of a target image and restore the target image for the size of a target image to respond to the calculated the change rate of size; (S220) Extract Photo Response Non-Uniformity (PRNU) from the target image; (S230) Use the PRNU value of the standard device to compare the similarity between the extracted PRNU value and the standard PRNU value; (S240) Calculate PCE value by using correlation section calculate through the comparison result; (S250) Determine whether the device which photographed the target image is a standard device or not by comparing the calculated PCE and the standard PCE of the standard device
Abstract translation: 目的：提供一种图像处理检测方法及其装置，用于通过从目标图像提取照片响应非均匀性（PRNU）来检测被检查的目标图像是否被基于该目标图像提取相关平面 提取价值。 构成：图像处理检测装置计算被检查的目标图像的大小的变化率并恢复目标图像（S210）。 图像处理检测装置从目标图像提取照片响应非均匀性（PRNU）（S220）。 图像处理检测装置使用通过比较提取的PRNU和标准PRNU获得的相关平面来计算峰值相关能量（PCE）（S230，S240）。 图像处理检测装置通过比较所计算的PCE和标准装置的标准PCE来确定拍摄目标图像的装置是否是标准装置（S250）。 （参考标号）（S210）计算目标图像的变化率并恢复目标图像的尺寸的目标图像以响应于计算出的尺寸变化率; （S220）从目标图像中提取照片响应非均匀性（PRNU）; （S230）使用标准设备的PRNU值比较提取的PRNU值和标准PRNU值之间的相似度; （S240）通过比较结果使用相关部分计算PCE值; （S250）通过将计算出的PCE和标准装置的标准PCE进行比较来判定拍摄目标图像的装置是否为标准装置
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公开(公告)号：KR101264165B1
公开(公告)日：2013-05-14
申请号：KR1020120038156
申请日：2012-04-12
Applicant: 국방과학연구소
IPC: G06T7/00
CPC classification number: G06T7/0002 , G06T5/20 , H04N5/3651 , H04N19/179
Abstract: PURPOSE: An image identification device and a method thereof are provided to sense re-photographed illegal copyright infringement images uploaded on the Internet by discriminating whether an image is re-photographed on the basis of shot-based PRNU(Photo Response Non Uniformity) included in the image. CONSTITUTION: An image acquisition unit(120) acquires input images. A control unit(110) classifies the input image into shots which have at least one frame, detects PRNU corresponding to the shots, and judges whether the input image is a re-photographed image on the basis of the detected PRNU. A memory unit(130) stores information processed in an image identification device(100). [Reference numerals] (110) Control unit; (120) Image acquisition unit; (130) Memory unit
Abstract translation: 目的：提供一种图像识别装置及其方法，用于通过基于拍摄的PRNU（Photo Response Non Uniformity）（Photo Response Non Uniformity）来辨别图像是否被重新拍摄，以感测在因特网上重新拍摄的非法侵犯版权的图像图像。 图片。 构成：图像采集单元（120）获取输入图像。 控制单元（110）将输入图像分类为具有至少一个帧的拍摄，检测与拍摄相对应的PRNU，并且基于检测到的PRNU来判断输入图像是否是重新拍摄的图像。 存储单元（130）存储在图像识别装置（100）中处理的信息。 （附图标记）（110）控制单元; （120）图像采集单元; （130）存储单元
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