公开(公告)号：US07623701B2

公开(公告)日：2009-11-24

申请号：US11295916

申请日：2005-12-06

Applicant: Jae-Chul Kim ,  Chang-Woo Chu ,  Bon-Ki Koo ,  Byoung-Tae Choi ,  Hyun-Bin Kim

Inventor： Jae-Chul Kim ,  Chang-Woo Chu ,  Bon-Ki Koo ,  Byoung-Tae Choi ,  Hyun-Bin Kim

IPC: G06K9/00

CPC classification number: G01B11/254 ,  G06T7/586

Abstract: Provided is an apparatus for reconstructing a 3D shape of an object by using Helmholtz stereopsis. The apparatus includes: an image capturer for capturing two pairs of images satisfying Helmholtz reciprocity condition; a preprocessor for estimating optical and geometrical characteristics of a camera used for the image capturing; and a geometrical data reconstructor for converting Helmholtz restrictions generated from the respective pairs of the images into partial differential equations on the basis of the estimated optical and geometrical characteristics, and reconstructing 3D surface data of an object with depth discontinuity at a boundary between regions on the basis of the partial differential equations.

Abstract translation: 本发明提供一种利用亥姆霍兹立体视觉重建物体的3D形状的装置。 该装置包括：用于捕获满足亥姆霍兹互惠条件的两对图像的图像捕获器; 用于估计用于图像捕获的相机的光学和几何特性的预处理器; 以及几何数据重建器，用于基于估计的光学和几何特征将从各个图像对生成的亥姆霍兹限制转换为偏微分方程，以及在所述图像上的区域之间的边界处重建具有深度不连续性的对象的3D表面数据 偏微分方程的基础。

公开(公告)号：US20090153556A1

公开(公告)日：2009-06-18

申请号：US12314465

申请日：2008-12-11

Applicant: Seung Woo Nam ,  Do-Hyung Kim ,  Jin Sung Choi ,  Hyun Bin Kim

Inventor： Seung Woo Nam ,  Do-Hyung Kim ,  Jin Sung Choi ,  Hyun Bin Kim

IPC: G06T15/40

CPC classification number: G06T15/06

Abstract: A pixel processing element (PPE)-based ray tracing device, includes an internal shared memory for receiving and storing image data to be rendered; a PPE processor for performing parallel ray tracing on the image data on a pixel-by-pixel basis; and a shading processor for accumulatively calculating color values of respective pixels obtained by ray tracing and determining a final color value of each pixel. Further, A PPE-based ray tracing method, includes receiving image data to be rendered on a frame-by-frame basis; storing data having a high frequency of use among the input data in a hierarchical cache; performing parallel ray tracing on image data of each pixel stored in the hierarchical cache on a frame-by-frame basis; calculating a color value of each pixel from first and second rays and a direct ray in accordance with the ray tracing result, and accumulating the color values to obtain the color value of each pixel.

Abstract translation: 一种基于像素处理元件（PPE）的光线跟踪设备，包括用于接收和存储要呈现的图像数据的内部共享存储器; PPE处理器，用于逐像素地对图像数据进行平行光线跟踪; 以及用于累积计算通过光线跟踪获得的各个像素的颜色值并确定每个像素的最终颜色值的着色处理器。 此外，基于PPE的光线跟踪方法包括接收要逐帧渲染的图像数据; 将具有高频率使用的数据存储在分层高速缓存中; 在逐帧的基础上对存储在分层高速缓存中的每个像素的图像数据进行平行光线跟踪; 根据光线跟踪结果计算来自第一和第二射线的每个像素的颜色值和直接光线，并且累积颜色值以获得每个像素的颜色值。

公开(公告)号：US20070126743A1

公开(公告)日：2007-06-07

申请号：US11605612

申请日：2006-11-29

Applicant: Chang-Joon Park ,  Hong-Seok Kim ,  In-Ho Lee ,  Jae-Kwang Lee ,  Hyun-Bin Kim

Inventor： Chang-Joon Park ,  Hong-Seok Kim ,  In-Ho Lee ,  Jae-Kwang Lee ,  Hyun-Bin Kim

IPC: G06T15/70

CPC classification number: G06F3/011 ,  A63F2300/1093 ,  G06F3/0304 ,  G06T7/74 ,  G06T2207/30196

Abstract: A method for estimating three-dimensional positions of human joints includes the steps of: a) marker-free motion capturing a moving figure for obtaining a multiview 2D image of the moving figure, and extracting a 2D feature point corresponding to a bodily end-effector; b) three-dimensionally matching the 2D feature point corresponding to the bodily end-effector, and recovering the 3D coordinates of the bodily end-effector; c) generating a 3D blob of the bodily end-effector, generating a virtual sphere with a radius that is a distance from a center of the 3D blob to a joint, and projecting the virtual sphere onto the obtained multiview 2D image of the moving figure; and d) detecting a coinciding point of a surface of the projected virtual sphere and the multiview 2D image of the moving figure, and estimating a 3D position corresponding to the coinciding point as a 3D position of the joint.

Abstract translation: 一种用于估计人体关节的三维位置的方法包括以下步骤：a）无标记运动，捕捉运动图形以获得运动图形的多视图2D图像，以及提取对应于身体末端执行器的2D特征点 ; b）三维匹配对应于身体末端执行器的2D特征点，以及恢复身体末端执行器的3D坐标; c）产生身体末端执行器的3D斑块，产生具有距离3D斑点的中心到关节的距离的半径的虚拟球体，以及将虚拟球体投影到获得的运动图形的多视图2D图像上 ; 以及d）检测所述投影虚拟球体的表面和所述运动图形的多视图2D图像的一致点，并且将与所述重合点对应的3D位置估计为所述关节的3D位置。

公开(公告)号：US20060126929A1

公开(公告)日：2006-06-15

申请号：US11295916

申请日：2005-12-06

Applicant: Jae-Chul Kim ,  Chang-Woo Chu ,  Bon-Ki Koo ,  Byoung-Tae Choi ,  Hyun-Bin Kim

Inventor： Jae-Chul Kim ,  Chang-Woo Chu ,  Bon-Ki Koo ,  Byoung-Tae Choi ,  Hyun-Bin Kim

IPC: G06K9/00

CPC classification number: G01B11/254 ,  G06T7/586

Abstract: Provided is an apparatus for reconstructing a 3D shape of an object by using Helmholtz stereopsis. The apparatus includes: an image capturer for capturing two pairs of images satisfying Helmholtz reciprocity condition; a preprocessor for estimating optical and geometrical characteristics of a camera used for the image capturing; and a geometrical data reconstructor for converting Helmholtz restrictions generated from the respective pairs of the images into partial differential equations on the basis of the estimated optical and geometrical characteristics, and reconstructing 3D surface data of an object with depth discontinuity at a boundary between regions on the basis of the partial differential equations.

公开(公告)号：US20060120594A1

公开(公告)日：2006-06-08

申请号：US11296788

申请日：2005-12-07

Applicant: Jae-Chul Kim ,  Chang-Woo Chu ,  Bon-Ki Koo ,  Byoung-Tae Choi ,  Hyun-Bin Kim

Inventor： Jae-Chul Kim ,  Chang-Woo Chu ,  Bon-Ki Koo ,  Byoung-Tae Choi ,  Hyun-Bin Kim

IPC: G06K9/00

CPC classification number: G06K9/6206 ,  G06K9/32 ,  G06T7/30

Abstract: Provided is an apparatus and method for determining stereo disparity based on two-path dynamic programming and GGCP. The apparatus includes a pre-processing unit for analyzing texture distribution of an input image by using a Laplacian of Gaussian (LOG) filter and dividing the input image into a homogeneous region and a non-homogeneous region; a local matching unit for determining candidate disparities to be included in an each pixel of all pixels; a local post-processing unit for removing candidate disparities in a pixel of low reliability by performing a visibility test betweens candidate disparities in each pixel to improve the reliability of the candidate disparity; and a global optimizing unit for determining a final disparity for candidate disparities in an each pixel by performing a dynamic programming.

公开(公告)号：US20060104539A1

公开(公告)日：2006-05-18

申请号：US11222589

申请日：2005-09-08

Applicant: Hae-Dong Kim ,  Jin-Seo Kim ,  Sung-Ye Kim ,  Maeng-Sub Cho ,  Byoung-Tae Choi ,  Hyun-Bin Kim

Inventor： Hae-Dong Kim ,  Jin-Seo Kim ,  Sung-Ye Kim ,  Maeng-Sub Cho ,  Byoung-Tae Choi ,  Hyun-Bin Kim

IPC: G06K9/36

CPC classification number: G06T3/40

Abstract: A system for image representation of a real object by using photographic images and a method thereof are disclosed. The system includes: a characterization unit of an image sensing device for extracting characteristics of an image sensing device to be used to obtain photographs of a target object; a characterization unit of an object for obtaining photographs of the target object by using the image sensing device and extracting characteristics of the target object by using the obtained photographs; and an image reproduction unit for reproducing photorealistic images by reinterpreting the extracted characteristics from the characterization unit of an object to be suitable to conditions of expressing the target object.

Abstract translation: 公开了一种通过使用摄影图像对真实物体进行图像表示的系统及其方法。 该系统包括：用于提取要用于获得目标对象的照片的图像感测装置的特征的图像感测装置的表征单元; 用于通过使用图像感测装置获得目标对象的照片并通过使用所获得的照片提取目标对象的特征的对象的表征单元; 以及图像再现单元，用于通过重新解释从对象的表征单元提取的特性以适合于表达目标对象的条件来再现真实感图像。

公开(公告)号：US20060098014A1

公开(公告)日：2006-05-11

申请号：US11193116

申请日：2005-07-29

Applicant: Seong-Min Baek ,  Choon-Young Lee ,  In-Ho Lee ,  Hyun-Bin Kim

Inventor： Seong-Min Baek ,  Choon-Young Lee ,  In-Ho Lee ,  Hyun-Bin Kim

IPC: G06T15/70 ,  G06T13/00

CPC classification number: G06T13/40

Abstract: Provided are an apparatus for generating multiple digital characters that do not collide with each other and a method thereof. The apparatus includes a posture storing block for extracting and storing key postures from motion capture data provided from the outside and for calculating and storing connection relationship between the extracted key postures, a character generating block for producing virtual characters based on user-input parameters, a simulating block for simulating the virtual characters not to collide with each other and generating motion pattern parameters based on the simulation result, a key frame generating block for searching matched postures according to the motion pattern parameters, which are transmitted from the simulating block, after then, changing the virtual characters, and generating key frames by locating the changed characters in corresponding positions on the screen, and a motion file generating block for producing a motion file by interpolating the key frames.

Abstract translation: 提供了一种用于生成不与彼此冲突的多个数字字符的装置及其方法。 该装置包括姿势存储块，用于从外部提供的运动捕获数据中提取和存储关键姿势，并且用于计算和存储所提取的关键姿势之间的连接关系，基于用户输入参数产生虚拟角色的字符生成块， 模拟块，用于模拟不相互碰撞的虚拟角色，并且基于模拟结果生成运动模式参数;根据运动模式参数搜索匹配姿势的关键帧生成块，从模拟块发送; ，通过将改变后的字符定位在屏幕上的相应位置，生成关键帧，以及运动文件生成块，用于通过内插关键帧来产生运动文件。

公开(公告)号：US20050267726A1

公开(公告)日：2005-12-01

申请号：US11187137

申请日：2005-07-22

Applicant: Jin-Seo Kim ,  Maeng-Sub Cho ,  Hae-Dong Kim ,  Sung-Ye Kim ,  Byoung-Tae Choi ,  Hyun-Bin Kim

Inventor： Jin-Seo Kim ,  Maeng-Sub Cho ,  Hae-Dong Kim ,  Sung-Ye Kim ,  Byoung-Tae Choi ,  Hyun-Bin Kim

IPC: H04N17/00

CPC classification number: H04N17/00 ,  H04N17/004

Abstract: An apparatus and a method for predicting reality of an image are provided. The apparatus includes: a prediction model generator for performing a psychophysical observer test on a plurality of first test images provided from outside and analyzing the test result to generate an image reality prediction model; a prediction model verifier for applying the image prediction model to a second test image provided from outside to predict image reality and comparing the prediction result with the test result to verify the image reality prediction model; and a reality prediction model applier for applying the verified image reality prediction model to a target evaluation image and providing the prediction result.

Abstract translation: 提供了一种用于预测图像现实的装置和方法。 该装置包括：预测模型生成器，用于对从外部提供的多个第一测试图像执行心理物理观察者测试，并分析测试结果以生成图像现实预测模型; 用于将图像预测模型应用于从外部提供的第二测试图像以预测图像现实并将预测结果与测试结果进行比较以验证图像现实预测模型的预测模型验证器; 以及用于将经验证的图像现实预测模型应用于目标评估图像并提供预测结果的现实预测模型应用程序。