基本信息:
- 专利标题： HAND TRACKING BASED ON ARTICULATED DISTANCE FIELD
- 申请号：PCT/US2018/044045 申请日：2018-07-27
- 公开(公告)号：WO2018223155A1 公开(公告)日：2018-12-06
- 发明人： TAYLOR, Jonathan James , TANKOVICH, Vladimir , TANG, Danhang , KESKIN, Cem , KOWDLE, Adarsh Prakash Murthy , DAVIDSON, Philip L. , IZADI, Shahram , KIM, David
- 申请人： GOOGLE LLC
- 申请人地址： 1600 Amphitheatre Pkwy. Mountain View, California 94043 US
- 专利权人： GOOGLE LLC
- 当前专利权人： GOOGLE LLC
- 当前专利权人地址： 1600 Amphitheatre Pkwy. Mountain View, California 94043 US
- 代理机构： DAVIDSON, Ryan S.
- 优先权： US62/513,199 20170531; US15/994,563 20180531
- 主分类号： G06T7/73
- IPC分类号： G06T7/73 ; G06T7/246 ; G06T7/149 ; G06T7/194 ; G06T7/162 ; G06K9/00
摘要：
An electronic device (100) estimates a pose of a hand (120) by volumetrically deforming a signed distance field (330) using a skinned tetrahedral mesh (410) to locate a local minimum of an energy function (810), wherein the local minimum corresponds to the hand pose. The electronic device identifies a pose of the hand by fitting an implicit surface model (305) of a hand to the pixels (320) of a depth image (115) that correspond to the hand. The electronic device uses the skinned tetrahedral mesh to warp space from a base pose to a deformed pose to define an articulated signed distance field from which the hand tracking module derives candidate poses of the hand. The electronic device then minimizes the energy function based on the distance of each corresponding pixel to identify the candidate pose that most closely approximates the pose of the hand.
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 |
| ------G06T7/00 | 图像分析，例如从位像到非位像 |
| --------G06T7/10 | .分割；边缘检测 |
| ----------G06T7/73 | ..使用基于特征的方法 |