发明公开
EP2839439A1 VERTEX CORRECTION METHOD AND APPARATUS FOR ROTATED THREE-DIMENSIONAL (3D) COMPONENTS
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基本信息:
- 专利标题： VERTEX CORRECTION METHOD AND APPARATUS FOR ROTATED THREE-DIMENSIONAL (3D) COMPONENTS
- 专利标题（中）：VERTEX校正方法和装置技术上缴三天（3d）组件
- 申请号：EP12874800.1 申请日：2012-04-18
- 公开(公告)号：EP2839439A1 公开(公告)日：2015-02-25
- 发明人： JIANG, Wenfei , CAI, Kangying , TIAN, Jiang
- 申请人： Thomson Licensing
- 申请人地址： 1-5, rue Jeanne d'Arc 92130 Issy-les-Moulineaux FR
- 专利权人： Thomson Licensing
- 当前专利权人： INTERDIGITAL MADISON PATENT HOLDINGS, SAS
- 当前专利权人地址： INTERDIGITAL MADISON PATENT HOLDINGS, SAS
- 代理机构： Huchet, Anne
- 国际公布： WO2013155687 20131024
- 主分类号： G06T17/00
- IPC分类号： G06T17/00
摘要：
A 3D model can be modeled using pattern-instance representation, wherein an instance component may be represented as transformation (for example, rotation, translation, and scaling) of a pattern. Quantization errors may be introduced when encoding rotation information, causing different vertex coordinate errors at different vertices of an instance. To efficiently compensate the vertex coordinate errors, an upper bound can be estimated for the vertex coordinate error of a vertex. Based on the upper bound, the codec decides whether the vertex coordinate error of the vertex needs to be compensated, and decides a quantization parameter for compensating the vertex coordinate error if compensation is needed. The upper bound can be estimated at both the encoder and decoder, and thus, no explicit signaling is needed to indicate whether vertex coordinate error compensation is used or to indicate the quantization parameter for the vertex coordinate error.
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06T | 一般的图像数据处理或产生 |
| ------G06T17/00 | 三维（3D）模型，例如3D目标的数据绘图 |