Traditional Culture Encyclopedia - Photography and portraiture - Basic introduction of IDP

Basic introduction of IDP

Three-dimensional optical photogrammetry system is the only digital close-range industrial photogrammetry with independent intellectual property rights in China, and it is a portable three-coordinate IDP three-dimensional industrial photogrammetry system.

Portable 3d industrial measurement system. Using ordinary high-resolution SLR camera (non-measuring camera), the three-dimensional coordinates of key points on the surface of workpiece are calculated through multiple two-dimensional photos, and the automatic measurement is realized by coding point technology. It is used for three-dimensional measurement of key points of medium and large (several meters to tens of meters) objects. Compared with the traditional three-coordinate measuring instrument, it has no mechanical travel limit and is not limited by the size, volume and shape of the measured object, which can effectively reduce the accumulated error and improve the measurement accuracy of the whole three-dimensional data. It can replace the traditional laser tracker, joint arm and theodolite. And there is no complicated problem of moving the work station, so it is convenient to measure large workpieces in all directions. The system can be used alone or in combination with the three-dimensional optical surface scanning system, which can effectively ensure the stitching accuracy of the whole point cloud of large objects. 1. camera self-calibration technology, using ordinary digital cameras, is widely used.

The core algorithm of independent intellectual property rights-binding adjustment algorithm.

3. It can measure the three-dimensional coordinates of coding points and marking points on the surface of large objects (several meters to tens of meters).

3. The compatible 3d optical surface scanning system can quickly acquire high-precision 3D data of super-large objects, correct the point cloud information of large-area curved surfaces, and greatly improve the point cloud stitching accuracy of the 3D scanner as a whole.

⒌ It can compare the three-dimensional geometric shape of the workpiece to be tested with the CAD digital model, and quickly and conveniently detect the product shape quality of the large workpiece; 6. It can measure the displacement and deformation of the workpiece in different periods of stress, and can carry out three-dimensional measurement and deformation detection on aircraft, bridges and automobiles. Reverse design: quickly obtain the key point cloud data of parts and establish a three-dimensional mathematical model to achieve the purpose of quickly designing products. Product inspection: product quality control and shape and size inspection of the production line, especially suitable for the inspection of complex curved surfaces, which can detect castings, forgings, stamping parts, molds, injection molded parts, wood products and other products. Deformation analysis: Deformation analysis can be divided into static and dynamic deformation analysis, which can be applied to sheet metal forming, welding deformation, wind tunnel deformation and temperature.