Honeycomb contour line included angle vertex extraction method, detection method and device

Abstract

The invention discloses a honeycomb contour line included angle vertex extraction method and device and a honeycomb contour line included angle vertex detection method and device. The honeycomb product vertex extraction method comprises the steps of obtaining a skeleton diagram of a honeycomb product; extracting boundary pixel points belonging to the same cell element from the skeleton diagram toobtain a boundary pixel point sequence of the cell element; respectively obtaining included angles corresponding to the boundary pixel points to obtain an included angle sequence corresponding to theboundary pixel points; wherein the included angles are included angles formed by connecting lines of two pixel points separated from the boundary pixel points by a first preset value and cell boundarypixel points on the two sides of the boundary pixel points in the boundary pixel point sequence; and according to the arrangement sequence of the included angles in the included angle sequence, extracting a second preset number of included angles in the included angle sequence each time, and obtaining vertexes of the cell elements according to extreme values of the extracted included angles. According to the method, the vertex of the honeycomb product can be accurately extracted by processing the image of the honeycomb product.

Description

technical field [0001] The invention relates to the fields of design, manufacture and application of lightweight structural products of transportation, machinery, aerospace, ships and other equipment, and in particular to a method for extracting a vertex of a honeycomb outline angle, a detection method and a device. Background technique [0002] Lightweight honeycomb structures are widely used in various engineering fields due to their excellent load-bearing and energy-absorbing properties. However, the machine is usually used to produce honeycomb products by stretching the layered structure, and the degree of stretching is determined according to the observation and experience of the skilled person. Therefore, in the manufacturing process of this product, it will inevitably lead to various structural defects such as arching, warping, and cell deformity in the processed honeycomb products, and these defects have been proven to cause the bearing capacity of the honeycomb prod...

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Problems solved by technology

Therefore, in the manufacturing process of this product, it will inevitably lead to various structural defects such as arching, warping, and cell deformity in the processed honeycomb products, and these defects have been proven to cause the bearing capacity of the honeycomb products. It has a great impact on energy absorption performance, resulting in a decline in the performance of cellular products

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