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Light-Weight Edge Enhanced Network for On-orbit Semantic Segmentation

机译:轻量级边缘增强网络,用于在轨语义分割

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On-orbit semantic segmentation can produce the target image tile or image description to reduce the pressure on transmission resources of satellites. In this paper, we propose a fully convolutional network for on-orbit semantic segmentation, namely light-weight edge enhanced network (LEN). For the model to be pruned, we present a new model pruning strategy based on unsupervised clustering. The method is performed according to the l_1-norm of each filter in the convolutional layer. And it effectively guides the pruning of filters and corresponding feature maps in a short time. In addition, the LEN uses a trainable edge enhanced module called enhanced domain transform to further optimize segmentation performance. The module fully exploits multi-level information of the object to generate the edge map and performs edge-preserving filtering on the coarse segmentation. Experimental results suggest that the models produce competitive results while containing only 1.53 M and 1.66 M parameters respectively on two public datasets: Inria Aerial Image Labeling Dataset and Massachusetts Buildings Dataset.
机译:在轨语义分割可以产生目标图像块或图像描述,以减轻对卫星传输资源的压力。在本文中,我们提出了一种用于在轨语义分割的全卷积网络,即轻量级边缘增强网络(LEN)。对于要修剪的模型,我们提出了一种基于无监督聚类的新模型修剪策略。该方法根据卷积层中每个滤波器的l_1范数执行。它可以有效地指导在短时间内修剪过滤器和相应的特征图。此外,LEN使用称为增强域变换的可训练边缘增强模块来进一步优化分段性能。该模块充分利用对象的多级信息来生成边缘图,并对粗略分割执行边缘保留过滤。实验结果表明,该模型产生了竞争性结果,同时在两个公共数据集上分别仅包含1.53 M和1.66 M参数:Inria航空影像标签数据集和Massachusetts Buildings数据集。

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