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arXiv 2411.01048cs.CV

MultiDepth:用于优化室内场景单目度量深度估计的多样本先验

MultiDepth: Multi-Sample Priors for Refining Monocular Metric Depth Estimations in Indoor Scenes

Silicon Valley Emerging Tech of LG Electronics CTO Office(LG电子首席技术官办公室硅谷新兴技术部门)

Sanghyun Byun, Jacob Song, Woo Seong Chung

AI总结:

针对现有单目度量深度估计模型适配室内场景效果差的问题,提出MultiDepth轻量级优化框架,结合多样本先验优化深度预测,在四个数据集上实现超45%的准确率提升且计算开销更低。

摘要:

单目度量深度估计(MMDE)是边缘设备上室内场景重建需解决的关键任务。尽管其重要性显著,现有模型对场景中物体的边界频率、场景复杂度等因素较为敏感,无法充分适配众多室内场景。在本研究中,我们提出通过单目度量深度优化(MMDR)任务,利用前沿的MMDE模型来弥补这一差距。MultiDepth提出的解决方案是将图像样本与预训练MMDE模型生成的初始深度图预测一同输入。与现有的迭代深度优化技术相比,MultiDepth的架构未采用法线图预测,有效减小了模型尺寸与计算开销,同时能在优化迭代中输出显著的改进效果。MultiDepth为优化网络实现了轻量级编码器-解码器架构,处理给定图像的多个样本,包括分割掩码。我们在四个数据集上对MultiDepth进行评估,并与前沿方法对比,证明其以极低开销实现了有效的深度优化,准确率提升幅度超过45%。

英文摘要:

Monocular metric depth estimation (MMDE) is a crucial task to solve for indoor scene reconstruction on edge devices. Despite this importance, existing models are sensitive to factors such as boundary frequency of objects in the scene and scene complexity, failing to fully capture many indoor scenes. In this work, we propose to close this gap through the task of monocular metric depth refinement (MMDR) by leveraging state-of-the-art MMDE models. MultiDepth proposes a solution by taking samples of the image along with the initial depth map prediction made by a pre-trained MMDE model. Compared to existing iterative depth refinement techniques, MultiDepth does not employ normal map prediction as part of its architecture, effectively lowering the model size and computation overhead while outputting impactful changes from refining iterations. MultiDepth implements a lightweight encoder-decoder architecture for the refinement network, processing multiple samples from the given image, including segmentation masking. We evaluate MultiDepth on four datasets and compare them to state-of-the-art methods to demonstrate its effective refinement with minimal overhead, displaying accuracy improvement upward of 45%.

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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