Package design intelligent retrieval method and system based on big data

By dividing the packaging design drawing into non-overlapping blocks, using the maximum inter-class variance method and gradient intensity subdividing pixel points, the high and low quantization values ​​are calculated, and the problem of inaccurate image feature expression in the prior art is solved, and the retrieval efficiency and accuracy are improved.

CN120578780AActive Publication Date: 2025-09-02SHANXI BLACK & WHITE BRAND PLANNING CO LTD
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Patent Information

Application Number
CN202511072150.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-09-02
Estimated Expiration
2045-08-01

AI Technical Summary

Technical Problem

The existing block truncation algorithm based on absolute distance lacks the adaptive adjustment ability to the local structural characteristics of the image, resulting in insufficient accurate image feature expression and decreased retrieval accuracy.

Method used

By dividing the packaging design drawing into multiple non-overlapping blocks, the maximum inter-class variance method is used to dynamically obtain the optimal binarization threshold, combining the gradient intensity to subdivide the pixel points into three categories: strong boundary, weak boundary and non-boundary, and calculate the high and low quantization values ​​based on the grayscale value and weight of the pixel points to form a double quantization feature representation.

Benefits of technology

It significantly improves the discrimination and matching accuracy of packaging design drawings, and improves the retrieval efficiency and accuracy in large-scale image databases.

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Abstract

The invention belongs to the technical field of packaging, and particularly relates to a package design intelligent retrieval method and system based on big data, and the method comprises the steps: dividing a package design drawing into a plurality of non-overlapping blocks with specified sizes through a block truncation algorithm based on an absolute distance; according to the size relation between the gray values of the pixel points and the optimal binarization threshold value, obtaining a bitmap corresponding to the non-overlapping blocks and having the same size as the non-overlapping blocks, calculating the loss degree according to the gray values and weights of all the first pixel points in the bitmap so as to obtain the high quantization values of the non-overlapping blocks, and calculating the loss degree according to the gray values and weights of all the second pixel points so as to obtain the high quantization values of the non-overlapping blocks. Obtaining a low quantization value of the non-overlapping block; and encoding and storing the bitmap, the low quantization value and the high quantization value of each non-overlapped block for searching the package design drawing. According to the method, the retrieval efficiency and the retrieval accuracy of the package design drawing in the database are improved.
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