The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 2009
Filed:
Sep. 13, 2006
Chern-sheng Lin, Taichung, TW;
Jyh-fa Lee, Longtan Township, Taoyuan County, TW;
Mau-shiun Yeh, Chiayi, TW;
Chia-hau Lin, Jhunan Township, Miaoli County, TW;
Shih-liang Ku, Sinpu Township, Hsinchu County, TW;
Chern-Sheng Lin, Taichung, TW;
Jyh-Fa Lee, Longtan Township, Taoyuan County, TW;
Mau-Shiun Yeh, Chiayi, TW;
Chia-Hau Lin, Jhunan Township, Miaoli County, TW;
Shih-Liang Ku, Sinpu Township, Hsinchu County, TW;
Chung Shan Institute of Science and Technology, Armaments Bureau, M.N.D., Taoyuan County, TW;
Abstract
The present invention is a measurement method of three-dimensional profiles and a reconstruction system thereof using subpixel localization with color gratings and picture-in-picture switching on a single display, wherein the measurement method includes: 1. Preparation step; 2. Projection step; 3. Image extraction step; 4. Image fine-tuning step; 5. Image processing step; and 6. Reconstruction step. The system includes: a projection apparatus, emitting a grating towards a workpiece under measurement, and forming a grating image on the workpiece under measurement, the contrast values of the plurality of grating stripes of the grating image being identical; a central processing unit, using the grating image and picture-in-picture of a display thereof to fine tune and reconstruct three-dimensional profiles of the workpiece under measurement. Thereby, the grating stripes have equal contrast for easier identification; the display has switchable picture-in-picture; and an adjustment module can adjust the grating.