多年来，2d Gans在影像肖像的一代中取得了巨大的成功。但是，他们在生成过程中缺乏3D理解，因此他们遇到了多视图不一致问题。为了减轻这个问题，已经提出了许多3D感知的甘斯，并显示出显着的结果，但是3D GAN在编辑语义属性方面努力。 3D GAN的可控性和解释性并未得到太多探索。在这项工作中，我们提出了两种解决方案，以克服2D GAN和3D感知gan的这些弱点。我们首先介绍了一种新颖的3D感知gan，Surf-Gan，它能够在训练过程中发现语义属性，并以无监督的方式控制它们。之后，我们将先验的Surf-GAN注入stylegan，以获得高保真3D控制的发电机。与允许隐姿姿势控制的现有基于潜在的方法不同，所提出的3D控制样式gan可实现明确的姿势控制对肖像生成的控制。这种蒸馏允许3D控制与许多基于样式的技术（例如，反转和风格化）之间的直接兼容性，并且在计算资源方面也带来了优势。我们的代码可从https://github.com/jgkwak95/surf-gan获得。

由于降低了von-neumann架构运行深度学习模型的功耗的基本限制，在聚光灯下，基于低功率尖刺神经网络的神经栓塞系统的研究。为了整合大量神经元，神经元需要设计占据一个小面积，而是随着技术缩小，模拟神经元难以缩放，并且它们遭受降低的电压净空/动态范围和电路非线性。鉴于此，本文首先模拟了在28nm工艺中设计的现有电流镜的电压域神经元的非线性行为，并显示了神经元非线性的效果严重降低了SNN推理精度。然后，为了减轻这个问题，我们提出了一种新的神经元，该新型神经元在时域中加入输入的尖峰，并且大大改善了线性度，从而改善了与现有电压域神经元相比的推理精度。在Mnist DataSet上进行测试，所提出的神经元的推理误差率与理想神经元的引起误差率不同于0.1％。

恶劣的天气图像翻译属于无监督的图像到图像（I2i）翻译任务，旨在将不利条件领域（例如，雨夜）转移到标准领域（例如，日期）。这是一个具有挑战性的任务，因为来自不利域的图像具有一些伪影和信息不足。最近，许多采用生成的对抗性网络（GANS）的研究在I2I翻译中取得了显着的成功，但仍然有限制将它们应用于恶劣天气增强。基于双向循环 - 一致性损耗的对称架构被采用作为无监督域传输方法的标准框架。但是，如果两个域具有不平衡信息，它可能会导致较差的转换结果。为了解决这个问题，我们提出了一种新的GaN模型，即Au-GaN，它具有不对称的域翻译的非对称架构。我们仅在普通域生成器（即雨夜 - >日）中插入建议的功能传输网络（$ {T} $ - 网），以增强不利域图像的编码特征。此外，我们介绍了对编码特征的解剖学的非对称特征匹配。最后，我们提出了不确定感知的周期 - 一致性损失，以解决循环重建图像的区域不确定性。我们通过与最先进的模型进行定性和定量比较来证明我们的方法的有效性。代码在https://github.com/jgkwak95/au-g中提供。

Neural Architecture Search (NAS) for automatically finding the optimal network architecture has shown some success with competitive performances in various computer vision tasks. However, NAS in general requires a tremendous amount of computations. Thus reducing computational cost has emerged as an important issue. Most of the attempts so far has been based on manual approaches, and often the architectures developed from such efforts dwell in the balance of the network optimality and the search cost. Additionally, recent NAS methods for image restoration generally do not consider dynamic operations that may transform dimensions of feature maps because of the dimensionality mismatch in tensor calculations. This can greatly limit NAS in its search for optimal network structure. To address these issues, we re-frame the optimal search problem by focusing at component block level. From previous work, it's been shown that an effective denoising block can be connected in series to further improve the network performance. By focusing at block level, the search space of reinforcement learning becomes significantly smaller and evaluation process can be conducted more rapidly. In addition, we integrate an innovative dimension matching modules for dealing with spatial and channel-wise mismatch that may occur in the optimal design search. This allows much flexibility in optimal network search within the cell block. With these modules, then we employ reinforcement learning in search of an optimal image denoising network at a module level. Computational efficiency of our proposed Denoising Prior Neural Architecture Search (DPNAS) was demonstrated by having it complete an optimal architecture search for an image restoration task by just one day with a single GPU.

尽管最近通过生成对抗网络（GAN）操纵面部属性最近取得了非常成功的成功，但在明确控制姿势，表达，照明等特征的明确控制方面仍然存在一些挑战。最近的方法通过结合2D生成模型来实现对2D图像的明确控制和3dmm。但是，由于3DMM缺乏现实主义和纹理重建的清晰度，因此合成图像与3DMM的渲染图像之间存在域间隙。由于渲染的3DMM图像仅包含面部区域，因此直接计算这两个域之间的损失是不理想的，因此训练有素的模型将是偏差的。在这项研究中，我们建议通过控制3DMM的参数来明确编辑验证样式的潜在空间。为了解决域间隙问题，我们提出了一个名为“地图和编辑”的新网络，以及一种简单但有效的属性编辑方法，以避免渲染和合成图像之间的直接损失计算。此外，由于我们的模型可以准确地生成多视图的面部图像，而身份保持不变。作为副产品，结合可见性掩模，我们提出的模型还可以生成质地丰富和高分辨率的紫外面部纹理。我们的模型依赖于验证的样式，并且提出的模型以自我监督的方式进行了训练，而无需任何手动注释或数据集训练。

最近，从单个用户构成的肖像中综合个性化角色已引起了极大的关注，因为社交媒体和元媒体的急剧普及。输入图像并不总是在正面视图中，因此对于3D建模或其他应用程序，获取或预测规范视图很重要。尽管生成模型的进度可以使肖像的风格化，但在规范视图中获得风格化的图像仍然是一项艰巨的任务。有几项关于面部额叶化的研究，但是当不在真实图像域中，例如卡通或绘画中，它们的性能会显着降低。额叶化后的样式化也导致退化的输出。在本文中，我们提出了一个新颖而统一的框架，该框架在规范视图中生成了风格化的肖像。借助提出的潜在映射器，我们分析和发现在Stylegan潜在空间中的额叶化映射，以立即进行风格化和正面化。此外，我们的模型可以使用未标记的2D图像集对培训，而无需任何3D监督。实验结果证明了我们方法的有效性。

由于快速加工速度和坚固性，它可以实现，最近基于骨架的动作识别得到了计算机视觉社区的注意。基于阵列的卷积神经网络（CNN）的卷积神经网络（CNN）在学习用于骨架序列的时空表示中的值得称谓的性能，它使用骨架图像作为CNN的输入。由于基于CNN的方法，分别主要编码时间和骨架关节作为行和列，因此与所有接头相关的潜在相关性可能丢失由2D卷积引起的。为了解决这个问题，我们提出了一种基于CNN的基于CNN的方法，具有对行动识别的对抗性培训。我们介绍了一种双层域对抗性学习，分别将骨架图像的特征分别与不同视角或受试者分别对齐，从而进一步改善了概括。我们在NTU RGB + D上评估了我们提出的方法。它与最先进的方法和2.4 $ \％$，1.9 $ \％$准确性收益达到竞争力，而不是交叉主题和跨视图的基线。

The 3D-aware image synthesis focuses on conserving spatial consistency besides generating high-resolution images with fine details. Recently, Neural Radiance Field (NeRF) has been introduced for synthesizing novel views with low computational cost and superior performance. While several works investigate a generative NeRF and show remarkable achievement, they cannot handle conditional and continuous feature manipulation in the generation procedure. In this work, we introduce a novel model, called Class-Continuous Conditional Generative NeRF ($\text{C}^{3}$G-NeRF), which can synthesize conditionally manipulated photorealistic 3D-consistent images by projecting conditional features to the generator and the discriminator. The proposed $\text{C}^{3}$G-NeRF is evaluated with three image datasets, AFHQ, CelebA, and Cars. As a result, our model shows strong 3D-consistency with fine details and smooth interpolation in conditional feature manipulation. For instance, $\text{C}^{3}$G-NeRF exhibits a Fr\'echet Inception Distance (FID) of 7.64 in 3D-aware face image synthesis with a $\text{128}^{2}$ resolution. Additionally, we provide FIDs of generated 3D-aware images of each class of the datasets as it is possible to synthesize class-conditional images with $\text{C}^{3}$G-NeRF.

In both terrestrial and marine ecology, physical tagging is a frequently used method to study population dynamics and behavior. However, such tagging techniques are increasingly being replaced by individual re-identification using image analysis. This paper introduces a contrastive learning-based model for identifying individuals. The model uses the first parts of the Inception v3 network, supported by a projection head, and we use contrastive learning to find similar or dissimilar image pairs from a collection of uniform photographs. We apply this technique for corkwing wrasse, Symphodus melops, an ecologically and commercially important fish species. Photos are taken during repeated catches of the same individuals from a wild population, where the intervals between individual sightings might range from a few days to several years. Our model achieves a one-shot accuracy of 0.35, a 5-shot accuracy of 0.56, and a 100-shot accuracy of 0.88, on our dataset.

Feature selection helps reduce data acquisition costs in ML, but the standard approach is to train models with static feature subsets. Here, we consider the dynamic feature selection (DFS) problem where a model sequentially queries features based on the presently available information. DFS is often addressed with reinforcement learning (RL), but we explore a simpler approach of greedily selecting features based on their conditional mutual information. This method is theoretically appealing but requires oracle access to the data distribution, so we develop a learning approach based on amortized optimization. The proposed method is shown to recover the greedy policy when trained to optimality and outperforms numerous existing feature selection methods in our experiments, thus validating it as a simple but powerful approach for this problem.