2 results about "Flow mapping" patented technology

The application provides a kind of FDM3D printer flow calibration method, it is related to 3D printing forming technical field, the method is in real time by extrusion pressure sensor Monitoring extrusion resistance value, and based on the resistance value Dynamic adjustment of the rotational speed of extruder screw;Temperature gradient distribution is obtained in nozzle area using infrared thermal imaging module, temperature-viscosity-flow mapping relationship is established and dynamic flow model is constructed to correct material thermal expansion and cold shrinkage effect;The thickness of printing layer is measured by laser displacement sensor, and the preset layer thickness threshold is combined to trigger flow compensation;Flow calibration is carried out through multi-sensor feedback and dynamic parameter adjustment, automatic calibration process is realized, manual intervention is reduced, real-time compensation mechanical resonance, material shrinkage and other interference factors are improved Calibration accuracy and shorten calibration time.

The invention relates to a method for correlating optical flow on a plurality of images of an image detection device for a vehicle (100). At least one tile is selected from a track map, wherein the track map comprises a plurality of flow tracks and is divided into a plurality of tiles. Subsequently, at least one flow track comprised by the tile is extended using flow vectors of a flow map which can be assigned to the flow track. Here, the flow map comprises a plurality of flow vectors based on a current image of the plurality of images.