1.江汉大学 专用装备智能测控湖北省工程研究中心,湖北 武汉 430056
2.江汉大学 智能制造学院,湖北 武汉 430056
丁建军(1969— ),男,教授,博士,从事化学传感器、智能检测、智能制造、图像处理、机电控制研究。10107093@jhun.edu.cn
孙超(1984— ),男,副教授,博士,从事传感器设计、深度学习算法、计算机视觉研究。sycsc115@163.com
收稿:2025-05-30,
修回:2025-08-24,
纸质出版:2026-01-20
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丁建军,汪刚林,陈正超等.融合滑动窗口与改进SGBM的高分辨率目标检测与测距研究[J].光学技术,2026,52(01):86-93.
DING Jianjun,WANG Ganglin,CHEN Zhengchao,et al.High-resolution object detection and ranging via sliding window integration and enhanced SGBM[J].OPTICAL TECHNIQUE,2026,52(01):86-93.
随着成像技术的发展,高分辨率图像广泛应用于多个领域,但在复杂天气、多尺度变化和立体匹配复杂度高等条件下仍面临挑战。提出一种结合滑动窗口的目标检测与测距方法,在处理高分辨率图像时,采用滑动窗口法对图像进行分割并保留20%的重叠区域,随后将各子图输入至YOLOv8模型进行检测。为提升模型性能,在backbone中引入GCANet模块以增强雾霾环境下的图像质量,并加入HorBlock以提升多尺度特征表征能力。检测完成后,合并各子图结果,并采用引入了CIoU匹配机制的非极大值抑制算法(NMS)进行后处理,以缓解密集目标场景中的过抑制问题。最后,设计了基于检测框约束的局部匹配算法,结合加权最小二乘滤波(WLS)补全视差空洞。实验结果表明,在自制的雾天场景Fog-A数据集与公开的无人机视角VisDrone2019数据集上,方法相较于原始YOLOv8n模型,mAP分别提升9.8%和6.1%;匹配时间缩短至原SGBM的三分之一,精度提升0.7%。
With the rapid advancement of imaging technologies
high-resolution images have found widespread applications across diverse fields.Nevertheless
challenges persist under complex weather conditions
multi-scale variations
and the high computational burden of stereo matching. A high-resolution object detection and distance measurement framework that integrates a sliding window strategy is proposed. Specifically
input images are partitioned into sub-images with 20% overlap and subsequently processed by the YOLOv8 model for detection.To enhance model robustness
a GCANet(Gated Context Aggregation Network) module is incorporated into the backbone to enhance feature robustness against atmospheric degradation
while a HorBlock(High-order Interaction Block) module is introduced to strengthen multi-scale feature representation.After detection
results from the sub-images are merged
and a CIoU-based NMS is applied to alleviate over-suppression in dense object scenarios.Furthermore
a detection box-constrained local stereo matching algorithm is designed
which is then refined with Weighted Least Squares (WLS) filtering to fill disparity holes and improve depth estimation.Experimental results on a self-constructed foggy dataset (Fog-A) and the public VisDrone2019 dataset show that the proposed method achieves mAP improvements of 9.8% and 6.1%
respectively
over the baseline YOLOv8n model. Moreover
the proposed local matching algorithm reduces computation time to one-third of that of the original SGBM and improves matching accuracy by 0.7%.
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