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基于频率感知与语义约束融合的胆管癌淋巴结转移影像检测方法及系统

InventionUnknown
10Claims · 4 independent
§ Ⅰ

Dossier Overview

Inventor

王慧燕; 陈德恒

Filing Date

Aug 7, 2026

Publication Date

Oct 27, 2026

IPC Classification

G06T 7/00 (2017.01)G06T 7/13 (2017.01)G06V 10/44 (2022.01)G06V 10/774 (2022.01)G06V 10/82 (2022.01)G16H 30/20 (2018.01)G06N 3/045 (2023.01)G06V 10/42 (2022.01)G06V 10/80 (2022.01)G06N 3/0464 (2023.01)G06V 20/70 (2022.01)G06V 10/54 (2022.01)

本发明公开了一种基于频率感知与语义约束融合的胆管癌淋巴结转移影像检测方法及系统。本发明针对胆管癌淋巴结转移CT/MRI影像中可疑淋巴结尺寸小、边界弱、对比度低且易受复杂解剖结构干扰的问题,对YOLO‑World网络进行改进,在图像分支中加入频率感知渐进细化模块,通过空间卷积分支和频域残差分支联合增强弱边界和细微纹理特征;在图像文本融合阶段加入语义约束上下文注意力模块,通过方向约束和语义相关性约束对多尺度视觉特征和文本特征进行聚合,减少非目标解剖结构误响应。本发明能够输出可疑淋巴结候选框、置信度和文本对齐分数,提高胆管癌淋巴结转移影像中可疑淋巴结候选区域的检出能力和定位精度。

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