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arXiv 2408.04523cs.CV

Depth Any Canopy:利用深度基础模型进行树冠高度估计

Depth Any Canopy: Leveraging Depth Foundation Models for Canopy Height Estimation

Politecnico di Torino(托斯纳大学);University of Texas at San Antonio(德克萨斯大学圣安东尼奥分校)

Daniele Rege Cambrin, Isaac Corley, Paolo Garza

AI总结:

本文提出Depth Any Canopy,通过微调深度基础模型Depth Anything v2实现高效树冠高度估计,以极低计算成本超越现有方法。

摘要:

估算全球树冠高度对于森林保护和气候变化应用至关重要。然而,使用LiDAR捕获高分辨率的地面真实树冠高度成本高昂,且无法在全球范围内获得。一种有效的替代方案是训练一个树冠高度估计器,使其能够处理单视角遥感影像。这种方法的主要障碍在于,这些方法需要大量的训练数据才能在全局范围内以及不常见的边缘情况下进行良好泛化。最近的单目深度估计基础模型即使在复杂场景中也表现出强大的零样本性能。在本文中,我们利用这些模型学习到的表示,将其迁移到遥感领域以测量树冠高度。我们的研究结果表明,我们提出的Depth Any Canopy(对Depth Anything v2模型进行微调以用于树冠高度估计的结果)提供了一种高性能且高效的解决方案,仅使用一小部分计算资源和参数,就超越了当前最先进的方法,具有优越或相当的性能。此外,我们的方法在计算上的成本不到1.30美元,估计碳足迹为0.14千克二氧化碳。代码、实验结果和模型检查点可在https://github.com/DarthReca/depth-any-canopy公开获取。

英文摘要:

Estimating global tree canopy height is crucial for forest conservation and climate change applications. However, capturing high-resolution ground truth canopy height using LiDAR is expensive and not available globally. An efficient alternative is to train a canopy height estimator to operate on single-view remotely sensed imagery. The primary obstacle to this approach is that these methods require significant training data to generalize well globally and across uncommon edge cases. Recent monocular depth estimation foundation models have show strong zero-shot performance even for complex scenes. In this paper we leverage the representations learned by these models to transfer to the remote sensing domain for measuring canopy height. Our findings suggest that our proposed Depth Any Canopy, the result of fine-tuning the Depth Anything v2 model for canopy height estimation, provides a performant and efficient solution, surpassing the current state-of-the-art with superior or comparable performance using only a fraction of the computational resources and parameters. Furthermore, our approach requires less than \$1.30 in compute and results in an estimated carbon footprint of 0.14 kgCO2. Code, experimental results, and model checkpoints are openly available at https://github.com/DarthReca/depth-any-canopy.

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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