Ta Particular to 3D light-section reconstruction three.1. Principle of Laser Gossypin Description triangulation Measurement6 oftechnology, the acquisiti point cloud data is equivalent to the laser triangulation measurement, wh Particular to 3D light-section reconstruction technology, the acquisition technique of point nates of every single point have to be obtained by means of the laser stripe center cloud information is equivalent to the laser triangulation measurement, where the coordinates of method. The be obtained by means of of a standard triangulation measurement syst every single point will need tooptical structure the laser stripe centerline extraction process. The optical structure of a common triangulationreference plane, as well as the Complementary me laser is incident around the vertical measurement system, where the laser is incident on the vertical reference plane, along with the Complementary metal oxide semiconductor (CMOS) iconductor (CMOS) is placed obliquely, is shown in Figure five. is placed obliquely, is shown in Figure five.Figure five. Schematic diagram of the laser triangulation measurement.Figure 5. Schematic diagram from the laser triangulation measurement.The original point is definitely the intersection on the laser along with the lens normal when the laser is incident Curdlan Protocol perpendicular pointreference plane. The plane that passes by means of this point, The original for the is definitely the intersection from the laser as well as the lens standard that is also perpendicular towards the laser line, is taken because the reference plane. The height h of is incident perpendicular to the reference plane. The plane that passes thro the measured point from the object is often expressed as:that is also perpendicular for the laser line, is taken because the reference strategy of the measured point ofhthe objectdL be expressed as: can (1) =cos(lcos + dsin)exactly where could be the angle amongst the reference plane and the line inside the origin point and = (the lens towards the imaging surface; the center of your lens; l will be the distance from the center of + ) d is the distance in between the imaging position along with the center of your CMOS; and L may be the where will be the angle amongst the reference plane along with the line within the or horizontal distance in between the laser plus the CMOS. the The coordinates of every point are connected accordingcenter right topological ima center on the lens; l will be the distance in the to the of the lens to the relationship to characterize the contour data with the measured object inside the present could be the distance amongst the imaging position and the center of the CMO section. Considering the accuracy, robustness, and versatility of your extraction method, the horizontal distance amongst the laser along with the CMOS. generally made use of methods for extracting the centerline of laser stripes primarily involve the gray centroid method, the Steger technique, the Hessian matrix technique, and so forth., which attain The coordinates of each and every point are connected in line with the correct micrometer-level sub-pixel extraction accuracy [10,11]. At present, the most recent analysis in this object lationship to characterize the contour data of the measured field has produced specific adjustments towards the classic algorithms described above for particular section. Considering however accuracy, robustness, and principle. applications, which has not thebeen a significant breakthrough in versatility in the extracti Subsequently, the whole method extracting the centerline of laser stripes typically employed approaches for requires to be calibrated to map the extracted two- principal dimensional pixel coordinatesthe Steger approach,spaceHessian matrix.
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