Zhangying Wang, Nan Gao, Zonghua Zhang. Three-Dimensional Shape Measurement Based on Parallel Four Color Channels Fringe Projection[J]. Acta Optica Sinica, 2018, 38(8): 0815022
- Acta Optica Sinica
- Vol. 38, Issue 8, 0815022 (2018)
Fig. 1. Schematic of fringe projection 3D shape measurement system based on parallel four color channels
Fig. 2. Photograph of fringe projection 3D shape measurement system based on parallel four colour channels
Fig. 3. Profile of one line in absolute phase map achieved by using two channels before and after matching
Fig. 4. Projected fringe patterns. (a) Composite color fringe pattern; (b) infrared fringe pattern
Fig. 5. Deformed fringe patterns obtained by camera. (a) Deformed composite color fringe pattern; (b) deformed infrared fringe pattern
Fig. 6. Phase map of mask. (a) Wrapped phase in red and blue channel; (b) wrapped phase in green channel; (c) wrapped phase in infrared channel; (d) absolute phase map
Fig. 7. 3D shape data of mask
Fig. 8. 3D shape data of artificial step
Fig. 9. 3D shape data of a human hand
Fig. 10. Intensity at a row of color fringe after coupling compensation
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Table 1. Depth measurements of one row in the middle of four test positionsmm
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