Industrial Technology Research Institute

Wen-Shiou Lou

Chun-Hsing Lee

Tung-Fa Liou

Miin-Tsair Su

Ming-Wheng Lin

A method for calibrating a laser three-dimensional digitizing sensor. First, a three-dimensional coordinator X-Y-Z is defined and a calibrating surface is provided. Second, a first mapping table of a two-dimensional digital image to the Z axis is established by translating the calibrating surface along the Z axis. Subsequently, the calibrating surface rotates along the Y axis by a predetermined angle and translates along the Z axis to establish the second mapping table of the two-dimensional digital image and the X axis according to the first mapping table.

Method and apparatus for calibrating laser 3D digitizing sensor

A three-dimensional scanning system, that scans a three-dimensional object and calculates a three-dimensional coordinate data from a surface of the object. The three-dimensional scanning system has a photoelectron detector, a rotational scanning device, a drive device, an image processing circuit, and an operational control device. The photoelectron detector projects a light plane onto the object and then receives a reflected light stripe. The rotational scanning device couples with the photoelectron detector that rotates on a fixed pivot and allows the light stripe to scan on the object's surface. The drive device couples to and operates the photoelectron detector and the rotational scanning device. The image processing circuit can grab the light stripe instantly. The operational control device couples with the rotational scanning device and the photoelectron detector. The operational control device controls the motion of the rotational scanning device and the scanning position of the photoelectron detector, and then calculates the three-dimensional coordinates of the object.

Growing community of inventors

Hsinchu, Taiwan

Wen-Shiou Lou