Production method and device of projection structural light
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TIANJIN UNIV
- Publication Date
- 2003-04-30
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to a method and device for generating projected structured light, more specifically to a technology for real-time generating projected structured light with spatial frequency conversion and phase shifting. Background technique
[0002] The 3D sensing technology based on fringe structured light projection and phase measurement has the characteristics of full-field, non-contact, and fast information acquisition. This method does not require any mechanical or optical scanning mechanism and has high measurement accuracy, so it has been extensively researched and developed. The method and device for generating fringe structured light and known spatial phase shift are the key links of fringe structured light projection and phase measurement technology. At present, the main two types of methods for generating fringe structured light projection are laser interference projection and white light grati...