Accurate and Robust Surface Measurement Using Optimal Structured Light Tracking Method

Accurate and Robust Surface Measurement Using Optimal Structured Light Tracking Method

Structured light vision systems are based on the fact that the pixel location of light in an image has a unique association with the object depth. However, their applications are mainly limited to the properties of the object surface and the lighting conditions. This paper presents a robust vision system for accurate acquisition of 3-D surface data based on optimal structured light. To achieve ...

Accurate 3D measurement using a structured light system

This paper discusses a method for obtaining accurate 3D measurements using a temporally encoded structured light system. An objective of the work was to have a balance in the accuracy of all components in the system. This was achieved by including lens distortion in the models for both the camera and projector which comprise the structured light system. In addition, substripe estimation was use...

Robust Automatic Surface Reconstruction with Structured Light

For the measurement of surfaces of close range objects, which do not show sufficient surface texture, an automatic system based on the projection of structured light has been developed. An off-the-shelf slide projector projects chromium slides with a regular dot pattern of 800 ... 8000 dots and perfectly binary transparency characteristics onto a surface. For robust point determination the obje...

Accurate Position Tracking Using Inertial Measurement Units

Color-Stripe Structured Light Robust to Surface Color and Discontinuity

Multiple color stripes have been employed for structured light-based rapid range imaging to increase the number of uniquely identifiable stripes. The use of multiple color stripes poses two problems: (1) object surface color may disturb the stripe color and (2) the number of adjacent stripes required for identifying a stripe may not be maintained near surface discontinuities such as occluding b...