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21. 发明公开

KR1020090087766A 메쉬 모델로 구현된 3차원 데이터의 부호화 및 복호화 방법 有权
标题翻译：用于编码和解码作为网格模型实现的3D数据的方法
公开(公告)号：KR1020090087766A
公开(公告)日：2009-08-18
申请号：KR1020080013214
申请日：2008-02-13
申请人： 삼성전자주식회사 , 홍익대학교 산학협력단
发明人： 김수균 , 오상욱 , 손병준 , 홍태화 , 조성대 , 이혜영 , 김대영 , 이성열 , 임낙권
IPC分类号： G06T17/10 , G06T17/00
CPC分类号： G06T17/20
摘要： A method for encoding and decoding 3D data implemented as a mesh model is provided to effectively reduce a size of encoding data of 3D data expressed as a mesh model. A bounding box which can contain a vertex forming 3D data based on information included in geometry data is generated(110). The bounding box is divided to a plurality of areas having the same size(120). The number of vertexes contained in each divided area is checked. Geometry data is encoded by using information about division of the bounding box, information about the vertex contained in each divided area, and information indicating a location of a vertex included in the terminal cell(160).
摘要翻译：提供了一种用于编码和解码实现为网格模型的3D数据的方法，以有效地减小表示为网格模型的3D数据的编码数据的大小。生成可以包含基于几何数据中包含的信息形成3D数据的顶点的边界框（110）。边界框被划分为具有相同大小的多个区域（120）。检查每个划分区域中包含的顶点数。通过使用关于边界框的划分，关于包含在每个划分区域中的顶点的信息和指示终端单元（160）中包括的顶点的位置的信息来编码几何数据。

22. 发明公开

KR1020090074874A 3차원 메쉬 데이터 간략화 방법 및 장치 有权
标题翻译：用于简化三维网格数据的装置和方法
公开(公告)号：KR1020090074874A
公开(公告)日：2009-07-08
申请号：KR1020080000558
申请日：2008-01-03
申请人： 삼성전자주식회사
发明人： 이서호 , 김수균 , 김주광 , 김태균
IPC分类号： G06T17/10
CPC分类号： G06T17/20
摘要： A three-dimensional mesh data simplifying method and an apparatus thereof for increasing the simplified outer shape of a model and the accuracy of a shape are provided to simplify the characteristic portion of 3D mesh data model by extending a QEM(Quadric Error Metrics) algorithm into the discrete curvature. An input unit inputs three dimensional mesh data(201). A controller measures the discrete curvature at an angular point(203). The controller calculates the error based on distance-curvature error measurement(205). The controller arranges heap with a queue. The controller selects the minimum error and inspects whether the minimum error is smaller than threshold(209).
摘要翻译：提供了一种用于增加模型的简化外形和形状精度的三维网格数据简化方法及其装置，以通过将QEM（二次方误差度量）算法扩展成为三维网格数据模型的特征部分来简化3D网格数据模型的特征部分离散曲率。输入单元输入三维网格数据（201）。控制器测量角点处的离散曲率（203）。控制器根据距离 - 曲率误差测量计算误差（205）。控制器使用队列排列堆。控制器选择最小误差，检查最小误差是否小于阈值（209）。

23. 发明公开

KR1020090021527A 파노라마 사진 촬영 방법 有权
标题翻译：拍摄全景照片的方法
公开(公告)号：KR1020090021527A
公开(公告)日：2009-03-04
申请号：KR1020070086105
申请日：2007-08-27
申请人： 삼성전자주식회사 , 재단법인서울대학교산학협력재단
发明人： 김수균 , 문재원 , 조성대 , 오상욱 , 손병준 , 홍태화 , 정희원 , 조남익 , 이상화 , 하성종
IPC分类号： H04N5/262
CPC分类号： G06T7/20 , G03B37/04 , H04N5/232 , H04N5/23238 , H04N5/2624
摘要： A method for photographing a panorama picture is provided to correct and adopt an image obtained by a camera by considering the relation with a real image of a subject so that the movement of a camera can be recognized accurately. When photographing each image which configures a panorama picture, a projected image is obtained by projecting an image, which is continuously inputted at a predetermined time interval, onto a virtual plane(200-215). A motion of a corresponding photographing device is detected by comparing a current image with a previous image based on a motion estimation technique by which exposure calibration is applied to the projected image(220). The photographing point for each image is judged by confirming, according to the movement of the detected motion of the corresponding photographing device, that the motion depending on photographing direction reaches a threshold value(230,240). Each image is inputted manually or is photographed at each photographing point of each image(250).
摘要翻译：提供拍摄全景图像的方法，以通过考虑与被摄体的实际图像的关系来校正和采用通过照相机获得的图像，使得可以准确地识别照相机的移动。当拍摄配置全景图像的每个图像时，通过将以预定时间间隔连续输入的图像投影到虚拟平面（200-215）上来获得投影图像。通过基于将投射图像应用曝光校准的运动估计技术（220）来比较当前图像与先前图像来检测相应拍摄装置的运动。通过根据相应的拍摄装置的检测到的运动的移动确定根据拍摄方向的运动达到阈值（230,240）来判断每个图像的拍摄点。每个图像被手动输入或在每个图像的每个拍摄点拍摄（250）。

24. 发明授权

KR100819274B1 3차원 포인트 데이터에서의 리지 선과 밸리 선 추출 방법 有权
标题翻译：三维无限点数据提取方法
公开(公告)号：KR100819274B1
公开(公告)日：2008-04-02
申请号：KR1020060116361
申请日：2006-11-23
申请人： 삼성전자주식회사
发明人： 김수균
IPC分类号： G06T17/20 , G06T7/00
CPC分类号： G06K9/4609
摘要： A method for extracting ridge and valley lines of 3D point data is provided to generate neighbor information through Delaunay triangulations, measure zero-crossing measurement with neighbor points and connect ridge and valley points, thereby being applied to pre-processing for generating each point as mesh data and discriminating the characteristic of the entire mesh model. A method for extracting ridge and valley lines of 3D(Three-Dimensional) point data comprises the following steps of: receiving point data from a 3D range scanning system(S100); estimating a normal vector by the regional neighbor information analysis of each point using the point data(S110); generating an MLS(Moving Least Squares) surface approximate to the each point of the point data(S130); acquiring connection information about the each point from the MLS surface(S140); measuring the curvature and curvature differential value of the each point on the MLS surface(S150); extracting ridge and value points by performing zero-crossing measurement for the connection information(S160); and generating the ridge and value lines by connecting the ridge and value points in a curvature direction.
摘要翻译：提供一种提取三维点数据的脊线和谷线的方法，通过Delaunay三角测量生成邻居信息，测量相邻点的过零点并连接脊点和谷点，从而适用于将每个点生成网格的预处理数据和区分整个网格模型的特征。一种用于提取3D（三维）点数据的脊线和谷线的方法包括以下步骤：从3D范围扫描系统接收点数据（S100）; 使用点数据通过每个点的区域邻居信息分析来估计法向量（S110）; 产生近似于点数据的每个点的MLS（移动最小二乘）表面（S130）; 从所述MLS表面获取关于每个点的连接信息（S140）; 测量MLS表面上每个点的曲率和曲率差值（S150）; 通过对连接信息进行过零测量来提取脊和值点（S160）; 并且通过在曲率方向上连接脊和值点来产生脊和值线。

25. 发明授权

KR100796849B1 휴대 단말기용 파노라마 모자이크 사진 촬영 방법 有权
标题翻译：移动装置拍摄全景莫斯科图像的方法
公开(公告)号：KR100796849B1
公开(公告)日：2008-01-22
申请号：KR1020060084880
申请日：2006-09-04
申请人： 삼성전자주식회사 , 재단법인서울대학교산학협력재단
发明人： 박경주 , 조성대 , 김수균 , 문재원 , 조남익 , 이상화 , 구형일 , 하성종
IPC分类号： H04N5/262
CPC分类号： G06K9/36 , G06K2009/2045 , G06T3/4038
摘要： A method for capturing a panorama mosaic image in a mobile terminal is provided to perform mosaic configuration with a relatively simple calculation by using limited hardware resources. A portion of a previously captured image is displayed as a guide image on an LCD(Liquid Crystal Display) viewer of a currently captured image and a plurality of images constituting a mosaic image is captured according to user manipulation(30). When the captured image is obtained in a panorama mode, projection transformation can be approximated to a rotational transformation matrix and each image is re-projected to a common cylindrical curved surface(32). Overlapped images of the re-projected images are locally aligned to determine an optimal position by using a hexagonal search scheme(34). Image stitching is performed on the overlapped regions by using a dynamic programming scheme to determine a boundary for connecting the overlapped images most naturally(36). A blending process is performed by removing a sudden change of brightness and the color sense based on the boundary region of the images(38).
摘要翻译：提供一种用于在移动终端中捕获全景马赛克图像的方法，以通过使用有限的硬件资源以相对简单的计算来执行马赛克配置。先前拍摄的图像的一部分作为引导图像显示在当前拍摄图像的LCD（液晶显示器）观察器上，并且根据用户操纵（30）捕获构成马赛克图像的多个图像。当以全景模式获得拍摄图像时，可以将投影变换近似为旋转变换矩阵，并且将每个图像重新投影到公共圆柱形曲面（32）。重新投影的图像的重叠图像被局部对齐以通过使用六边形搜索方案来确定最佳位置（34）。通过使用动态规划方案在重叠区域上执行图像拼接，以确定用于最重要地连接重叠图像的边界（36）。通过基于图像的边界区域去除亮度和颜色感觉的突然变化来执行混合处理。

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