中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

41 records (took 0.29 seconds)

    Method and apparatus for encoding/decoding graphic data
    1.
    发明授权
    Method and apparatus for encoding/decoding graphic data 失效
    用于对图形数据进行编码/解码的方法和装置

    公开(公告)号：US08254705B2

    公开(公告)日：2012-08-28

    申请号：US13067882

    申请日：2011-07-01

    Applicant: Jeong-hwan Ahn ,  Mahn-jin Han

    Inventor： Jeong-hwan Ahn ,  Mahn-jin Han

    IPC: G06K9/36

    CPC classification number: G06T9/001 ,  H04N19/70

    Abstract: A graphic data encoding method and apparatus generating a bitstream by encoding a header having at least one piece of first information determined in consideration of a predetermined graphic profile from among multiple pieces of encodable first information; and encoding a payload having at least one piece of second information determined in consideration of the predetermined graphic profile from among multiple pieces of encodable second information. A graphic data decoding method and apparatus decode the generated bitstream. Irrespective of the functions that can be performed by the graphic data encoding apparatus and the functions that can be performed by the graphic data decoding apparatus, the graphic data decoding apparatus, which is in accordance with a graphic profile, can completely restore a 3D mesh model described in the bitstream generated by the graphic data encoding apparatus that is satisfactory to the graphic profile.

    Abstract translation: 一种图形数据编码方法和装置，通过编码具有从多个可编码的第一信息中考虑到预定图形轮廓确定的至少一条第一信息的报头来生成比特流; 以及编码具有从多个可编码的第二信息中考虑到预定图形轮廓确定的至少一条第二信息的有效载荷。 图形数据解码方法和装置对生成的比特流进行解码。 不管图形数据编码装置可以执行的功能和图形数据解码装置可以执行的功能如何，图形数据解码装置都可以完全恢复3D网格模型 在由图形数据编码装置生成的对图形轮廓满意的位流中描述。

    Node structure for representing 3-dimensional objects using depth image
    2.
    发明授权
    Node structure for representing 3-dimensional objects using depth image 有权
    使用深度图像表示3维物体的节点结构

    公开(公告)号：US08022951B2

    公开(公告)日：2011-09-20

    申请号：US10305070

    申请日：2002-11-27

    Applicant: Alexander Olegovich Zhirkov ,  Leonid Ivanovich Levkovich-Maslyuk ,  In-kyu Park ,  Alexey Victorovich Ignatenko ,  Mahn-jin Han

    Inventor： Alexander Olegovich Zhirkov ,  Leonid Ivanovich Levkovich-Maslyuk ,  In-kyu Park ,  Alexey Victorovich Ignatenko ,  Mahn-jin Han

    IPC: G06T17/10 ,  G06T15/10

    CPC classification number: G06T15/205 ,  G06T15/405 ,  G06T17/005

    Abstract: A family of node structures for representing 3-dimensional objects using depth image are provided. These node structures can be adopted into MPEG-4 AFX for conventional polygonal 3D representations. Main formats of the family are DepthImage, PointTexture and OctreeImage. DepthImage represents an object by a union of its reference images and corresponding depth maps. PointTexture represents the object as a set of colored points parameterized by projection onto a regular 2D grid. OctreeImage converts the same data into hierarchical octree-structured voxel model, set of compact reference images and a tree of voxel-image correspondence indices. DepthImage and OctreeImage have animated versions, where reference images are replaced by videostreams. DIBR formats are very convenient for 3D model construction from 3D range-scanning and multiple source video data. MPEG-4 framework allows construction of a wide variety of representations from the main DIBR formats, providing flexible tools for effective work with 3D models. Compression of the DIBR formats is achieved by application of image (video) compression techniques to depth maps and reference images (videostreams).

    Abstract translation: 提供了一个使用深度图像表示三维物体的节点结构系列。 这些节点结构可被采用于MPEG-4 AFX，用于传统的多边形3D表示。 家庭的主要格式有DepthImage，PointTexture和OctreeImage。 DepthImage通过其参考图像和相应的深度图的并集来表示对象。 PointTexture将对象表示为通过投影到常规2D网格上参数化的一组彩色点。 OctreeImage将相同的数据转换为分层八叉树结构体元模型，一组紧凑参考图像和一组体素图像对应索引。 DepthImage和OctreeImage具有动画版本，其中参考图像被视频流替代。 DIBR格式对于3D范围扫描和多源视频数据的3D模型构建非常方便。 MPEG-4框架允许构建主要DIBR格式的各种表示形式，为3D模型的有效工作提供灵活的工具。 通过将图像（视频）压缩技术应用于深度图和参考图像（视频流）来实现DIBR格式的压缩。

    Progressive 3D mesh coding method and apparatus
    4.
    发明授权
    Progressive 3D mesh coding method and apparatus 有权
    渐进式3D网格编码方法和装置

    公开(公告)号：US06563500B1

    公开(公告)日：2003-05-13

    申请号：US09379595

    申请日：1999-08-24

    Applicant: Sung-jin Kim ,  Mun-sup Song ,  Euee-seon Jang ,  Mahn-jin Han ,  Yang-seock Seo

    Inventor： Sung-jin Kim ,  Mun-sup Song ,  Euee-seon Jang ,  Mahn-jin Han ,  Yang-seock Seo

    IPC: G06T1720

    CPC classification number: G06T9/001 ,  G06T17/20

    Abstract: A progressive coding method and apparatus of three-dimensional (3D) mesh data is provided. The method includes the steps of (a) constructing a 3D triangle mesh of one or more mesh object layers, (b) partitioning each mesh object layer into a plurality of mesh components, (c) forming bitstreams in units of mesh components and coding the same, and (d) combining the coded mesh components into compressed bitstreams and transmitting the same. Therefore, progressive 3D mesh restoration is allowed, and the entropy coding efficiency can be enhanced.

    Abstract translation: 提供了三维（3D）网格数据的渐进编码方法和装置。 该方法包括以下步骤：（a）构造一个或多个网格物体层的3D三角形网格，（b）将每个网格物体层划分成多个网格分量，（c）以网格分量为单位形成比特流，并对 相同，以及（d）将编码的网格分量组合成压缩比特流并传送它们。 因此，允许进行3D网格恢复，并且可以提高熵编码效率。

    Method of progressively coding/decoding 3-D mesh information and apparatus thereof
    5.
    发明授权
    Method of progressively coding/decoding 3-D mesh information and apparatus thereof 失效
    3-D网格信息的逐步编码/解码方法及其装置

    公开(公告)号：US08446948B2

    公开(公告)日：2013-05-21

    申请号：US11785565

    申请日：2007-04-18

    Applicant: Euee-seon Jang ,  Sung-jin Kim ,  Mun-sup Song ,  Mahn-jin Han ,  Yang-seock Seo ,  Seok-yoon Jung

    Inventor： Euee-seon Jang ,  Sung-jin Kim ,  Mun-sup Song ,  Mahn-jin Han ,  Yang-seock Seo ,  Seok-yoon Jung

    IPC: H04B1/66 ,  G06K9/36

    CPC classification number: G06T9/001 ,  H04N19/61

    Abstract: A method of progressively coding/decoding 3-D mesh information, and an apparatus therefor are provided. The progressive 3-D mesh information coding method includes the steps of reconstructing an input 3-D mesh into a plurality of mesh components, coding each of the plurality of mesh components, and multiplexing the plurality of coded mesh components into a compressed bit stream and transmitting the compressed bit stream. The method of progressively decoding the transmitted, compressed bit stream which has been coded by the coding method, includes dividing the transmitted bit stream into a plurality of coded mesh components, decoding each of the plurality of coded mesh components, and reconstructing a 3-D mesh by synthesizing the plurality of decoded mesh components.

    Abstract translation: 提供逐行编码/解码3-D网格信息的方法及其装置。 渐进3-D网格信息编码方法包括以下步骤：将输入的3-D网格重构为多个网格分量，对多个网格分量中的每一个进行编码，并将多个编码网格分量复用为压缩比特流，以及 发送压缩比特流。 对通过编码方法编码的发送的压缩比特流进行逐行解码的方法包括将发送的比特流划分为多个编码网格分量，对多个编码网格分量中的每一个进行解码，并重构3-D 通过合成多个解码的网格分量来进行网格化。

    APPARATUS AND METHOD FOR DEPTH IMAGE-BASED REPRESENTATION OF 3-DIMENSIONAL OBJECT
    6.
    发明申请
    APPARATUS AND METHOD FOR DEPTH IMAGE-BASED REPRESENTATION OF 3-DIMENSIONAL OBJECT 有权
    三维对象深度图像表示的设备和方法

    公开(公告)号：US20120176381A1

    公开(公告)日：2012-07-12

    申请号：US13342714

    申请日：2012-01-03

    Applicant: In-kyu PARK ,  Alexander Olegovich Zhirkov ,  Mahn-jin Han

    Inventor： In-kyu PARK ,  Alexander Olegovich Zhirkov ,  Mahn-jin Han

    IPC: G06T13/20

    CPC classification number: G06T15/205 ,  G06T15/405 ,  G06T17/005

    Abstract: Provided are a family of node structures, representing 3-dimensional objects using depth image, adoptable into MPEG-4 AFx for polygonal 3D representations. Family formats include DepthImage, PointTexture, and OctreeImage. DepthImage represents an object through union of its reference images and corresponding depth maps. PointTexture represents the object as a set of colored points parameterized by projection onto a 2D grid. OctreeImage converts same data into hierarchical octree-structured voxel model, set of compact reference images, and a tree of voxel-image correspondence indices. DepthImage and OctreeImage have animated versions, where reference images are replaced by videostreams. DIBR formats are convenient for 3D model construction from 3D range-scanning and multiple source video data. MPEG-4 framework allows construction of a variety of representations from the DIBR formats, providing flexible tools for effective 3D models work. DIBR format compression is achieved by application of image (video) compression techniques to depth maps and reference images (videostreams).

    Abstract translation: 提供了一系列节点结构，表示使用深度图像的3维对象，可以采用MPEG-4 AFx进行多边形3D表示。 家庭格式包括DepthImage，PointTexture和OctreeImage。 DepthImage通过其参考图像和相应的深度图的并集来表示对象。 PointTexture将对象表示为通过投影到2D网格上参数化的一组彩色点。 OctreeImage将相同的数据转换为分层八叉树结构体元模型，一组紧凑参考图像和一组体素图像对应索引。 DepthImage和OctreeImage具有动画版本，其中参考图像被视频流替代。 DIBR格式可以方便地从3D范围扫描和多源视频数据建立3D模型。 MPEG-4框架允许从DIBR格式构建各种表示形式，为有效的3D模型工作提供灵活的工具。 通过将图像（视频）压缩技术应用到深度图和参考图像（视频流）来实现DIBR格式压缩。

    Method and apparatus for encoding/decoding graphic data
    7.
    发明申请
    Method and apparatus for encoding/decoding graphic data 失效

    公开(公告)号：US20120002891A1

    公开(公告)日：2012-01-05

    申请号：US13067882

    申请日：2011-07-01

    Applicant: Jeong-hwan Ahn ,  Mahn-jin Han

    Inventor： Jeong-hwan Ahn ,  Mahn-jin Han

    IPC: G06K9/36

    CPC classification number: G06T9/001 ,  H04N19/70

    Abstract: A graphic data encoding method and apparatus generating a bitstream by encoding a header having at least one piece of first information determined in consideration of a predetermined graphic profile from among multiple pieces of encodable first information; and encoding a payload having at least one piece of second information determined in consideration of the predetermined graphic profile from among multiple pieces of encodable second information. A graphic data decoding method and apparatus decode the generated bitstream. Irrespective of the functions that can be performed by the graphic data encoding apparatus and the functions that can be performed by the graphic data decoding apparatus, the graphic data decoding apparatus, which is in accordance with a graphic profile, can completely restore a 3D mesh model described in the bitstream generated by the graphic data encoding apparatus that is satisfactory to the graphic profile.

    Image-based rendering and editing method and apparatus
    8.
    发明授权
    Image-based rendering and editing method and apparatus 有权
    基于图像的渲染和编辑方法和装置

    公开(公告)号：US07453455B2

    公开(公告)日：2008-11-18

    申请号：US10890280

    申请日：2004-07-14

    Applicant: In-kyu Park ,  Joo-yeon Han ,  Mahn-jin Han ,  Alexey Victorovich Ignatenko ,  Anton Konouchine ,  Leonid Ivanovich Levkovich-Maslyuk

    Inventor： In-kyu Park ,  Joo-yeon Han ,  Mahn-jin Han ,  Alexey Victorovich Ignatenko ,  Anton Konouchine ,  Leonid Ivanovich Levkovich-Maslyuk

    IPC: G06T15/00

    CPC classification number: G06T15/205 ,  G11B27/034 ,  H04N19/597

    Abstract: A method and apparatus removing redundant data of a simple texture model, using an extended depth image, and an image-based editing method and apparatus. The method involves calculating normal vectors of pixels projected into a three-dimensional (3D) space by using depth images among a plurality of simple texture images, the plurality of simple texture images rendering different aspects of a 3D model; calculating reliabilities of the pixels of each of the simple texture images by using the calculated normal vectors; and comparing the reliabilities of the pixels that originate from different simple texture images but render the same portion of the 3D model and removing the pixels having low reliabilities from the different simple texture images from which they respectively originate.

    Abstract translation: 一种使用扩展深度图像和基于图像的编辑方法和装置去除简单纹理模型的冗余数据的方法和装置。 该方法涉及通过使用多个简单纹理图像中的深度图像来计算投影到三维（3D）空间中的像素的法向向量，所述多个简单纹理图像呈现3D模型的不同方面; 通过使用所计算的法向量来计算每个简单纹理图像的像素的可靠性; 并且比较来自不同简单纹理图像的像素的可靠性，但是渲染3D模型的相同部分并且从分别来自它们的不同简单纹理图像中去除具有低可靠性的像素。

Patent Agency Ranking