dual structured light 3d using a 1d sensor - eccv 2016 structured light 3d using a 1d sensor ......
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DDual SStructured Light 3D using a 1D SensorJian Wang, Aswin C. Sankaranarayanan,
Mohit Gupta, and Srinivasa G. Narasimhan
Why Use a 1D Sensor for 3D Scanning?
Wavelength ShorterLonger
Visible
UltravioletInfrared
Structured Light Outside Visible Spectrum or Using Special Sensors
Visible SWIRPenetrate Atmosphere Obscurants
See through Smoke and FireVisible SWIR
Short-wave infrared (wavelength 0.9um~2.5um)
Per-pixel PriceSpectral
bandDetector
Technology $/pix
NIR/VIS/NUV SiSWIR InGaAsDynamic Vision Sensor
Case studies:
2D SWIR Camera
Proposed: Optical Dual of Traditional Structured Light System
Hardware Prototype and Results
Objective lens
Relay lens
Cylindrical lens
Line-sensor
Projector
2D camera helper
Cylindrical lens
Line-sensor
Hardware Setup
Conventional Structured Light Proposed: Dual Structured Light (DualSL)
Structured Light 3D Imaging
The Digital Michelangelo Project
Microsoft KinectDepth mapPattern on scene
Cost$100K
1D SWIR Camera
Cost$100
2D DVS Camera
Cost$5K
Cost$100
1D DVS Camera
Scene
2D Camera2D Projector
Scene
2D Camera1D ProjectorCylindrical lens
Scene
2D Projector1D CameraCylindrical lens
Replace the 2D projector by 1D projector + cylindrical lens
3D location obtained by ray-plane triangulation
Switch the role of cameraand projector
Ray Diagrams of the Optics Design
z
x
Objective lens
Line-sensor
z
y
Cylindrical lens
Objective lens
Line-sensor
Cylindrical lens
Without cylindrical lens
With cylindrical lens
Concave bowl
Translucent wax
Traditional SLwith 2D sensor
DualSLwith 1D sensor
1.6mm
mm
Results
3D Meshes