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arXiv 2011.03972cs.CVcs.AI
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用于目标骨架检测的自适应线性跨度网络

Adaptive Linear Span Network for Object Skeleton Detection

University of Chinese Academy of Sciences(中国科学院大学)

Chang Liu, Yunjie Tian, Jianbin Jiao, Qixiang Ye

摘要:

传统的物体骨架检测网络通常是手工制作的。虽然有效,他们需要密集的先验知识来配置不同尺度granularity.In本文中,我们提出了自适应线性跨度网络(AdaLSN),神经架构搜索(NAS)驱动,自动配置和集成的尺度感知功能的对象骨架检测的代表性features。AdaLSN是用线性跨度理论制定的,它为多尺度深度特征融合提供了最早的解释之一。AdaLSN是通过定义一个混合的单位-金字塔搜索空间来实现的,它超越了许多现有的使用单位级或单位级特征的搜索空间,在混合空间中,我们应用遗传结构搜索来联合优化单位级操作和单位级连接,以实现自适应的特征空间扩展。与最先进的技术相比,AdaLSN实现了显著更高的准确性和延迟权衡,从而证实了其多功能性。它还展示了图像到掩模任务,如边缘检测和道路提取的一般适用性。代码可在\href{https://github.com/sunsmarterjie/SDL-Skeleton}{\color{magenta}github.com/sunsmarterjie/SDL-Skeleton}上获得。

英文摘要:

Conventional networks for object skeleton detection are usually hand-crafted. Although effective, they require intensive priori knowledge to configure representative features for objects in different scale granularity.In this paper, we propose adaptive linear span network (AdaLSN), driven by neural architecture search (NAS), to automatically configure and integrate scale-aware features for object skeleton detection. AdaLSN is formulated with the theory of linear span, which provides one of the earliest explanations for multi-scale deep feature fusion. AdaLSN is materialized by defining a mixed unit-pyramid search space, which goes beyond many existing search spaces using unit-level or pyramid-level features.Within the mixed space, we apply genetic architecture search to jointly optimize unit-level operations and pyramid-level connections for adaptive feature space expansion. AdaLSN substantiates its versatility by achieving significantly higher accuracy and latency trade-off compared with state-of-the-arts. It also demonstrates general applicability to image-to-mask tasks such as edge detection and road extraction. Code is available at \href{https://github.com/sunsmarterjie/SDL-Skeleton}{\color{magenta}github.com/sunsmarterjie/SDL-Skeleton}.

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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