识别方法、识别机构、信息处理设备及可读存储介质
By combining speckle and stripe structured light and switching the projection pattern according to the distance, the problem of recognition accuracy and speed of structured light 3D measurement at different distances is solved, realizing efficient and accurate 3D information recognition, miniaturization of equipment and reduction of cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
- Filing Date
- 2023-05-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing structured light 3D measurement methods have a contradiction between accuracy and speed in near-range and medium-to-long-range recognition. Speckle structured light has a fast recognition speed but poor accuracy, while stripe structured light has high accuracy but slow speed and cannot effectively identify moving objects.
By combining speckle and stripe structured light, the projection pattern is dynamically switched according to the distance between the target and the acquisition device. The speckle pattern is used at close range, and the stripe pattern is used at medium and long range. The 3D information is calculated by combining RGB images.
It improves recognition speed and accuracy, reduces computational workload, achieves efficient 3D information recognition at different distances, and the device is small in size and low in cost.
Smart Images
Figure CN116580437B_ABST