Prof. Yu Cao Profile

Prof. Yu Cao

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Proceedings Article | 15 February 2022 Paper

Multi-model imaging detection using a learning feature fusion module

Sihao Gao, Yu Cao, Wenjing Zhang, Qian Dai, Jun Li, Xiaojun Xu

Proceedings Volume 12166, 121662C (2022) https://doi.org/10.1117/12.2614776

KEYWORDS: Image fusion, Polarization, Cameras, Feature extraction, Convolution, Image processing, Multimodal imaging, Target detection

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In this paper, we design a feature fusion module for multi-model imaging based on deep learning. The fused feature of multi-dimensional images is used for object detection, which can effectively avoid interference caused by complex environments. Feature fusion module consists of a convolution layer and an activation function. It can establish the connection between different images. The fusion rules are obtained through supervised learning. Compared with the traditional target detection structure, it can extract more detailed information from several source images. Feature maps extracted from each image are fused by the feature fusion module to form a new feature map. Such a feature map can be better used for the generation of objects masks and bounding boxes. We capture a series of multi-dimensional images with a flexible multi-model camera. When shooting, multi-dimensional information is simultaneously recorded in an image. Through decoding, multiple images of different types can be obtained, including polarization and spectral images. These images record the multi-dimensional optical characteristics of the object and background. Compared with the traditional single-input color or monochrome image method, the proposed method gets 0.25 of average precision and 0.75 of F1-score, which achieves higher detection accuracy in various natural backgrounds.

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