This work introduces alternating latent topologies (ALTO) for high-fidelity reconstruction of implicit 3D surfaces from noisy point clouds. Previous work identifies that the spatial arrangement of latent encodings is important to recover detail. One school of thought is to encode a latent vector for each point (point latents). Another school of thought is to project point latents into a grid (grid latents) which could be a voxel grid or triplane grid. Each school of thought has tradeoffs. Grid latents are coarse and lose high-frequency detail. In contrast, point latents preserve detail. However, point latents are more difficult to decode into a surface, and quality and runtime suffer. In this paper, we propose ALTO to sequentially alternate between geometric representations, before converging to an easy-to-decode latent. We find that this preserves spatial expressiveness and makes decoding lightweight. We validate ALTO on implicit 3D recovery and observe not only a performance improvement over the state-of-the-art, but a runtime improvement of 3-10$\times$. Project website at https://visual.ee.ucla.edu/alto.htm/.
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有几篇论文正确包括人工智能（AI）培训数据中的少数群体，以改善对少数群体和/或一般社会的测试推论。一般社会由少数派和多数利益相关者组成。一个普遍的误解是，少数群体的包容性不会单独提高多数群体的绩效。在本文中，我们令人惊讶的是，包括少数样本可以改善多数族裔的测试错误。换句话说，少数群体的包容性会导致多数群体增强（MIME）的性能。给出了哑剧效应的理论存在证明，并发现与六个不同数据集的实验结果一致。项目网页：https：//visual.ee.ucla.edu/mime.htm/
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我们提出了一个大规模的真实世界和干净的图像对数据集，以及一种从图像中降低降解的方法，从图像中降低了降解。由于没有用于降低的现实世界数据集，因此当前的最新方法依赖于合成数据，因此受SIM2REAL域间隙的限制。此外，由于没有真实的配对数据集，严格的评估仍然是一个挑战。我们通过通过对非鼻子变化的细致控制收集第一个真实的配对数据集来填补这一空白。我们的数据集对各种现实世界的雨水现象（例如雨条和雨水积累）进行了配对的培训和定量评估。为了学习对雨现象不变的代表，我们提出了一个深层神经网络，该网络通过最大程度地减少雨水和干净图像之间的雨水不变损失来重建基础场景。广泛的实验表明，所提出的数据集使现有的DERAINER受益，我们的模型可以在各种条件下对真实雨水图像的最先进方法优于最先进的方法。
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