Multiple tissue fabric water mark technology anti-counterfeit method

Abstract

The invention discloses an anti-counterfeiting method using watermark technology for multi-layer tissue fabrics. The anti-counterfeiting method is divided into two parts: embedding watermark and extracting watermark. The steps of embedding watermark are: 1) Find the optional watermark points that meet the fabric appearance requirements in the original sample file; 2) Determine whether the optional watermark points meet the requirements of fabric tension balance ; 3) Encode the optional watermark points that meet the requirements, and embed the watermark information; the steps of extracting the watermark are: 1) compare the current and each tissue point of the original sample file, and identify different tissue points, namely watermark points ; 2) Inversely encode the watermark points to obtain watermark information. The present invention designs a minimum coding scheme on the basis of analyzing the production technology of the jacquard fabric and the anti-counterfeiting requirements. The method is proved to be effective and feasible by computer simulation and production field test. This method will increase the difficulty and cost of counterfeiters, and can effectively protect the self-owned brand pattern of the multi-layer tissue jacquard fabric.

Description

technical field [0001] The invention relates to an anti-counterfeiting method using watermark technology for multi-layer tissue fabrics. Background technique [0002] Textile fabrics are necessary daily consumer goods, and their value consists of various factors such as materials, patterns, and workmanship. Anti-counterfeiting of textile fabrics, the most important of which is the protection of patterns. Famous brands have an urgent need for design protection in the fierce market competition. However, the actual protection methods in the textile industry are very limited at this stage, mainly because the protection measures are strictly restricted by various preconditions. These constraints include limitations on the appearance of fabric patterns, limitations on cost, and limitations on various production processes. At present, electronic technology and computer technology have been widely used in the textile field, such as electronic jacquard bridle and computer loom are...

AI Technical Summary

Problems solved by technology

The above literatures all take the grayscale image of the fabric surface image as the analysis object, and can only identify some regular single tissues, and do not involve complex tissues, such as reorganized and double-layered tissues.

Shinohara et al. took CT images of the fabric surface and section, obtained yarn position information by tracking the direction of each yarn, and reconstructed multi-layered fabric samples with a three-dimensional modeling method. This method has expensive hardware and complex algorithms.

These documents show that it is difficult to identify and reconstruct watermark information using existing automatic identification technology

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