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arXiv 1709.08480cs.LGcs.RO
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J-MOD $^{2}$:联合单目障碍物检测和深度估计

J-MOD$^{2}$: Joint Monocular Obstacle Detection and Depth Estimation

University of Perugia(佩鲁贾大学)

Michele Mancini, Gabriele Costante, Paolo Valigi, Thomas A. Ciarfuglia

摘要:

在这项工作中,我们提出了一个端到端的深度架构,共同学习检测障碍物,并估计其深度的MAV飞行应用。大多数现有的方法要么依赖于Visual SLAM系统,要么依赖于深度估计模型来构建3D地图和检测障碍物。然而,对于避开障碍物的任务,不需要这种复杂程度。最近的工作已经提出了多任务架构来执行场景理解和深度估计。我们遵循他们的轨迹,并提出了一种特定的架构来联合估计深度和障碍物,而不需要计算全局地图,但如果需要,则保持与全局SLAM系统的兼容性。该网络架构的目的是利用联合信息的障碍物检测任务,产生更可靠的边界框,与深度估计之一,增加了鲁棒性的情况下的变化。我们将这种体系结构称为J-MOD $^{2}$。我们测试我们的方法的有效性与不同的外观和焦距的序列上的实验,并将其与SotA多任务方法,共同执行语义分割和深度估计。此外,我们展示了集成在一个完整的系统中使用一组模拟导航实验,其中MAV探索一个未知的情况下,并通过使用我们的检测模型计划安全的轨迹。

英文摘要:

In this work, we propose an end-to-end deep architecture that jointly learns to detect obstacles and estimate their depth for MAV flight applications. Most of the existing approaches either rely on Visual SLAM systems or on depth estimation models to build 3D maps and detect obstacles. However, for the task of avoiding obstacles this level of complexity is not required. Recent works have proposed multi task architectures to both perform scene understanding and depth estimation. We follow their track and propose a specific architecture to jointly estimate depth and obstacles, without the need to compute a global map, but maintaining compatibility with a global SLAM system if needed. The network architecture is devised to exploit the joint information of the obstacle detection task, that produces more reliable bounding boxes, with the depth estimation one, increasing the robustness of both to scenario changes. We call this architecture J-MOD$^{2}$. We test the effectiveness of our approach with experiments on sequences with different appearance and focal lengths and compare it to SotA multi task methods that jointly perform semantic segmentation and depth estimation. In addition, we show the integration in a full system using a set of simulated navigation experiments where a MAV explores an unknown scenario and plans safe trajectories by using our detection model.

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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