基于多任务联合预测的施工场景散料体积估算方法及装置

By employing a multi-task joint prediction method at the construction site, and utilizing a monocular RGB camera and a lightweight image semantic segmentation network for bulk material volume estimation, the problems of high computational resource consumption and insufficient measurement stability in existing technologies are solved. This achieves high-precision, lightweight bulk material volume estimation, which is suitable for resource-constrained equipment at construction sites.

CN122115541BActive Publication Date: 2026-07-17XIAMEN UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN UNIV OF TECH
Filing Date
2026-04-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, existing image processing methods cannot effectively solve the problem of bulk material volume estimation in construction scenarios. Furthermore, existing methods for estimating bulk material volume in construction sites are susceptible to environmental shadows. Existing laser scanning and multi-view vision solutions are easily affected by dust, vibration, and complex lighting conditions, and have high deployment costs. Monocular vision solutions consume significant computational resources, and measurement results are easily affected by environmental shadows. Moreover, the surface textures and natural accumulation characteristics of different bulk materials vary significantly, resulting in insufficient measurement stability.

Method used

A multi-task joint prediction method is adopted. The bulk material images acquired by a monocular RGB camera are preprocessed, and a lightweight image semantic segmentation network is used to output a binary mask to construct a structured feature vector representing the distribution of bulk materials. The volume, loading rate, and bulk material category probability are predicted by a multi-task deep learning model, and the final correction is performed by combining the effective volume of the storage and transportation container.

Benefits of technology

It achieves high-precision, lightweight bulk material volume estimation at construction sites, can adapt to dusty and complex lighting environments, reduces computing resource consumption, improves measurement stability and response speed, and is suitable for resource-constrained edge computing devices.

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Abstract

本发明提供的基于多任务联合预测的施工场景散料体积估算方法及装置,涉及非接触式体积估算与深度学习技术领域。本发明利用单目相机采集图像并执行预处理;通过图像语义分割网络提取二值化掩码,构建表征散料分布的结构化特征向量与多任务深度学习模型,通过多任务深度学习模型的门控融合模块将视觉特征与结构化特征深度耦合,联合预测体积、装载率及类别概率;基于类别概率加权校正体积预测值,结合储运容器的有效容积计算最终装载率。本申请能够避开复杂的三维重建流程,在降低计算开销与硬件成本的同时,解决单目尺度歧义与弱边界分割难题,显著提升了施工现场散料计量的精度、实时性与鲁棒性。
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