Method and device for generating and identifying coding patterns

Abstract

An embodiment of the invention provides an encoded pattern generation method and an encoded pattern identification method. The encoded pattern generation comprises the following steps: encoded units used for parsing coordinate information of an surface position of an object are obtained, a plurality of encoded units are presented on an object surface to form an encoded pattern, the encoded units comprise two readable marks having a common end point, and an included angle formed by the readable marks having the common end point is used for parsing encoded value of identities of the encoded units. The encoded pattern identification method comprises the following steps: an object image presenting the object surface having the encoded pattern is collected, the encoded units in the encoded pattern is determined, and the encoded value of the identities of the encoded value is determined via the included angle formed by the readable marks having the common end point in the encoded units. A computation amount for encoded patter identification can be lowered via the methods disclosed in the invention, and encoded pattern identification precision and speed can be improved. The embodiment of the invention provides an encoded image generation device and an encoded image identification device.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of image coding, and more specifically, embodiments of the present invention relate to a method and device for generating and identifying coding patterns. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] In the prior art, coding patterns containing information (such as numerical information, website information, coordinate information, text information, and encrypted information, etc.) can be printed on the surface of the object. By analyzing the image of the coding pattern, the information contained in the coding pattern can be analyzed. Common coding patterns can be two-dimensional codes, barcodes, or other coding patterns. In specific implementation, the information can be encod...

AI Technical Summary

Problems solved by technology

[0008] Option 2 When encoding the position on the surface of the object, the encoding is performed according to the different directions of the line segments formed by the lines between the multiple readable marks in the encoding pattern. When analyzing the numerical information represented by the encoding pattern, it is necessary to calculate two readable marks. The midpoint of the line between the marks, and then calculate the horizontal grid line and the vertical grid line according to the determined midpoints, and then calculate the line segment formed by the line between two readable marks and the horizontal grid line or vertical grid line The angle between the grid lines, the calculation of the angle is more complicated and the error is larger

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