5 results about "Perpendicular distance" patented technology

A method for measuring a feature near the edge of an object comprising receiving image data characterizing the object, identifying an edge of the object, identifying a point on the perimeter of the feature at a position opposite the edge of the object, determining a reference plane, determining a three-dimensional reference line on the reference plane associated with the edge of the object, determining a three-dimensional measurement point on the reference plane based on the point on the perimeter of the feature, and determining the perpendicular distance from the measurement point to the reference line.

The application discloses a hot-rolled strip steel local high point detection method, device, equipment and medium, and belongs to the metallurgical technical field.The method comprises the following steps: acquiring the positions and thicknesses of each detection point on a strip steel cross section; determining the perpendicular distances from a target detection point to each target straight line according to the positions and thicknesses of each first detection point, each second detection point and the target detection point, the target straight line being the line connecting the first detection point and the second detection point, the target detection point being any detection point among all the detection points, the first detection point being a detection point between the target detection point and a third detection point, the second detection point being a detection point between the target detection point and a fourth detection point, and the third detection point and the fourth detection point being located on the two sides of the target detection point; and determining the thickness state of the target detection point according to all the perpendicular distances, wherein the thickness state comprises a local high point state and a flat state.The method can automatically detect which detection points among all the detection points are local high points.

The present invention relates to a system and a method for generating a real-time topographic map with respect to an excavated face of a construction site with a real-time location of a bucket, and calculating a real-time perpendicular distance between the bucket and the excavated face based on the topographic map. Moreover, by comparing a topographic grid point assigning a real-time location of the bucket on the grid point generated to be fitted to predetermined resolution and a real-time location of a bucket, a real-time perpendicular distance of the bucket is calculated and provided to conveniently prevent pitching when drilling a deep place in which a clear view is hardly secured with respect to a drilling surface by an excavator driver.

A filament for an oral care implement has a longitudinal axis and a multi-edged cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis, the multi-edged cross-sectional area having at least 18 projections and at least 18 grooves, the projections and grooves being arranged in an alternating manner. Each projection has a peak, and each groove has a bottom formed by neighboring and converging projections. Each peak has a height, the height being defined as a perpendicular distance measured from the peak of the projection to a tangent between to neighboring bottoms. Each groove has a depth, the depth being defined as a perpendicular distance measured from the bottom of the groove to a tangent between two neighboring peaks. A ratio of the peak height to the depth of the groove is from about 1 to about 2, preferably about 1.5

The application relates to the technical field of geotechnical mechanics testing, in particular to a non-contact measurement method for a circular tunnel surrounding rock structure surface and related equipment, establishes a measurement control point and a measurement station position, establishes a local measurement coordinate system, determines feature points of a structure surface trace and coordinates of the feature points, converts the local coordinates into global coordinates by correcting a hole axis azimuth angle, constructs a corrected local coordinate system, obtains new coordinates of the feature points, projects the new coordinates to a tunnel cross section, calculates a perpendicular distance from the feature points to a circumferential line, optimizes the feature points according to the perpendicular distance to meet constraint conditions, determines a structure surface trace distribution map and occurrence of the feature points, and realizes accurate measurement and analysis of the tunnel surrounding rock structure surface. The application can obtain actual circular tunnel surrounding rock structure surface trace and occurrence information by reducing field measurement workload.