基于机器视觉识别的中药渣分选与质量分级方法

By establishing a joint model of camera and light source response and using an improved VMamba model for adaptive updates, the inconsistency problem in the sorting and quality grading of Chinese medicinal residue under light source aging and camera response drift was solved, achieving stable sorting and grading results.

CN122090426BActive Publication Date: 2026-07-17HEBEI UNIV OF TECH +3

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to maintain the stability and consistency of sorting and quality grading of medicinal herb residues without interrupting production, especially under conditions of light source aging and camera response drift, leading to inconsistent sorting and grading results.

Method used

By collecting a continuous sequence of images of Chinese medicinal residue on the conveying line, recording exposure, white balance gain, and light source driving quantity, a joint response function model of camera response and light source response is established, a frame-by-frame system transfer function sequence is generated, and transfer function inversion compensation and reflectivity uniformity are performed. Combined with the improved VMamba model, asymmetric state space scanning and cross-scale state transfer are carried out. The TENT algorithm is used for label-free adaptive updates, the parameter update amplitude is limited, and an adaptive normalized parameter set is generated for sorting and grading.

Benefits of technology

It improves the consistency of imaging photometric intensity and batch-to-batch comparability, enhances the stability and robustness of identifying Chinese medicinal residues across operating conditions, improves the consistency of sorting category determination and quality grade determination, and enhances the reliability of diversion control commands and graded recording data.

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Abstract

本发明公开了基于机器视觉识别的中药渣分选与质量分级方法,包括:采集图像序列记录曝光量、白平衡增益、光源驱动量;预处理得到标准化图像序列并由批次差分构建工况漂移张量;分割目标区域,基于粒径分布参数、纤维取向各向异性参数、含水散射指示参数构建等效折射散射权重图并生成物理令牌序列;采用改进的VMamba非对称扫描得到各向异性状态表征序列;计算预测熵并由工况漂移张量对齐残差构建物理一致性损失,采用TENT在线更新得到自适应归一化参数集;推理得到目标分选类别与目标质量等级并生成分流控制指令与分级记录数据,用于输送线分选分级。本发明实现无标注跨工况分选与一致分级。
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