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arXiv 2305.12635cs.CV

用于伪装目标检测的仿生三阶段模型

A bioinspired three-stage model for camouflaged object detection

Tianyou Chen, Jin Xiao, Xiaoguang Hu, Guofeng Zhang, Shaojie Wang

AI总结:

针对伪装目标边界模糊、细小结构难分割的问题,提出仿生三阶段由粗到细模型,结合多尺度、边界与掩码引导融合模块,在低复杂度下超越CNN先进方法。

摘要:

伪装目标通常会融入其背景,并呈现出模糊的边界。复杂的环境条件以及伪装目标与其周围环境之间高度的内在相似性,给准确定位并完整分割这些目标带来了重大挑战。尽管现有方法已在各种真实场景中展现出显著性能,但在面对小目标、纤细结构和不清晰边界等困难情形时仍存在局限。受人类观察包含伪装目标的图像时视觉感知过程的启发,我们提出了一种三阶段模型,可在单次迭代中实现由粗到细的分割。具体而言,该模型采用三个解码器,依次处理下采样特征、裁剪特征和高分辨率原始特征。所提方法不仅降低了计算开销,还减轻了背景噪声造成的干扰。此外,考虑到多尺度信息的重要性,我们设计了一个多尺度特征增强模块,在扩大感受野的同时保留详细结构线索。另外,还开发了边界增强模块,通过利用边界信息提升性能。随后,提出了掩码引导融合模块,通过将粗略预测图与高分辨率特征图相融合来生成细粒度结果。我们的网络在不引入不必要复杂性的情况下,超越了基于CNN的现有先进同类方法。论文被接收后,源代码将在 https://github.com/clelouch/BTSNet 公开发布。

英文摘要:

Camouflaged objects are typically assimilated into their backgrounds and exhibit fuzzy boundaries. The complex environmental conditions and the high intrinsic similarity between camouflaged targets and their surroundings pose significant challenges in accurately locating and segmenting these objects in their entirety. While existing methods have demonstrated remarkable performance in various real-world scenarios, they still face limitations when confronted with difficult cases, such as small targets, thin structures, and indistinct boundaries. Drawing inspiration from human visual perception when observing images containing camouflaged objects, we propose a three-stage model that enables coarse-to-fine segmentation in a single iteration. Specifically, our model employs three decoders to sequentially process subsampled features, cropped features, and high-resolution original features. This proposed approach not only reduces computational overhead but also mitigates interference caused by background noise. Furthermore, considering the significance of multi-scale information, we have designed a multi-scale feature enhancement module that enlarges the receptive field while preserving detailed structural cues. Additionally, a boundary enhancement module has been developed to enhance performance by leveraging boundary information. Subsequently, a mask-guided fusion module is proposed to generate fine-grained results by integrating coarse prediction maps with high-resolution feature maps. Our network surpasses state-of-the-art CNN-based counterparts without unnecessary complexities. Upon acceptance of the paper, the source code will be made publicly available at https://github.com/clelouch/BTSNet.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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