The introduction of high-quality image generation models, particularly the StyleGAN family, provides a powerful tool to synthesize and manipulate images. However, existing models are built upon high-quality (HQ) data as desired outputs, making them unfit for in-the-wild low-quality (LQ) images, which are common inputs for manipulation. In this work, we bridge this gap by proposing a novel GAN structure that allows for generating images with controllable quality. The network can synthesize various image degradation and restore the sharp image via a quality control code. Our proposed QC-StyleGAN can directly edit LQ images without altering their quality by applying GAN inversion and manipulation techniques. It also provides for free an image restoration solution that can handle various degradations, including noise, blur, compression artifacts, and their mixtures. Finally, we demonstrate numerous other applications such as image degradation synthesis, transfer, and interpolation.

由于GaN潜在空间的勘探和利用，近年来，现实世界的图像操纵实现了奇妙的进展。 GaN反演是该管道的第一步，旨在忠实地将真实图像映射到潜在代码。不幸的是，大多数现有的GaN反演方法都无法满足下面列出的三个要求中的至少一个：重建质量，可编辑性和快速推断。我们在本研究中提出了一种新的两阶段策略，同时适合所有要求。在第一阶段，我们训练编码器将输入图像映射到StyleGan2 $ \ Mathcal {W} $ - 空间，这被证明具有出色的可编辑性，但重建质量较低。在第二阶段，我们通过利用一系列HyperNetWorks来补充初始阶段的重建能力以在反转期间恢复缺失的信息。这两个步骤互相补充，由于Hypernetwork分支和由于$ \ Mathcal {W} $ - 空间中的反转，因此由于HyperNetwork分支和优异的可编辑性而相互作用。我们的方法完全是基于编码器的，导致极快的推断。关于两个具有挑战性的数据集的广泛实验证明了我们方法的优越性。

随着人类生活中的许多实际应用，包括制造监控摄像机，分析和加工客户行为，许多研究人员都注明了对数字图像的面部检测和头部姿势估计。大量提出的深度学习模型具有最先进的准确性，如YOLO，SSD，MTCNN，解决了面部检测或HOPENET的问题，FSA-NET，用于头部姿势估计问题的速度。根据许多最先进的方法，该任务的管道由两部分组成，从面部检测到头部姿势估计。这两个步骤完全独立，不共享信息。这使得模型在设置中清除但不利用每个模型中提取的大部分特色资源。在本文中，我们提出了多任务净模型，具有利用从面部检测模型提取的特征的动机，将它们与头部姿势估计分支共享以提高精度。此外，随着各种数据，表示面部的欧拉角域大，我们的模型可以预测360欧拉角域的结果。应用多任务学习方法，多任务净模型可以同时预测人头的位置和方向。为了提高预测模型的头部方向的能力，我们将人脸从欧拉角呈现到旋转矩阵的载体。

头部姿势估计是一个具有挑战性的任务，旨在解决与预测三维向量相关的问题，这为人机互动或客户行为中的许多应用程序提供服务。以前的研究提出了一些用于收集头部姿势数据的精确方法。但这些方法需要昂贵的设备，如深度摄像机或复杂的实验室环境设置。在这项研究中，我们引入了一种新的方法，以有效的成本和易于设置，以收集头部姿势图像，即UET-HEADBETS数据集，具有顶视图头姿势数据。该方法使用绝对方向传感器而不是深度摄像机快速设置，但仍然可以确保良好的效果。通过实验，我们的数据集已显示其分发和可用数据集之间的差异，如CMU Panoptic DataSet \ Cite {CMU}。除了使用UET符号数据集和其他头部姿势数据集外，我们还介绍了称为FSANET的全范围模型，这显着优于UET-HEALPETS数据集的头部姿势估计结果，尤其是在顶视图上。此外，该模型非常重量轻，占用小尺寸图像。

Federated learning (FL) is a decentralized and privacy-preserving machine learning technique in which a group of clients collaborate with a server to learn a global model without sharing clients' data. One challenge associated with FL is statistical diversity among clients, which restricts the global model from delivering good performance on each client's task. To address this, we propose an algorithm for personalized FL (pFedMe) using Moreau envelopes as clients' regularized loss functions, which help decouple personalized model optimization from the global model learning in a bi-level problem stylized for personalized FL. Theoretically, we show that pFedMe's convergence rate is state-of-the-art: achieving quadratic speedup for strongly convex and sublinear speedup of order 2/3 for smooth nonconvex objectives. Experimentally, we verify that pFedMe excels at empirical performance compared with the vanilla FedAvg and Per-FedAvg, a meta-learning based personalized FL algorithm.

This paper aims to improve the Warping Planer Object Detection Network (WPOD-Net) using feature engineering to increase accuracy. What problems are solved using the Warping Object Detection Network using feature engineering? More specifically, we think that it makes sense to add knowledge about edges in the image to enhance the information for determining the license plate contour of the original WPOD-Net model. The Sobel filter has been selected experimentally and acts as a Convolutional Neural Network layer, the edge information is combined with the old information of the original network to create the final embedding vector. The proposed model was compared with the original model on a set of data that we collected for evaluation. The results are evaluated through the Quadrilateral Intersection over Union value and demonstrate that the model has a significant improvement in performance.

Adversarial machine learning has been both a major concern and a hot topic recently, especially with the ubiquitous use of deep neural networks in the current landscape. Adversarial attacks and defenses are usually likened to a cat-and-mouse game in which defenders and attackers evolve over the time. On one hand, the goal is to develop strong and robust deep networks that are resistant to malicious actors. On the other hand, in order to achieve that, we need to devise even stronger adversarial attacks to challenge these defense models. Most of existing attacks employs a single $\ell_p$ distance (commonly, $p\in\{1,2,\infty\}$) to define the concept of closeness and performs steepest gradient ascent w.r.t. this $p$-norm to update all pixels in an adversarial example in the same way. These $\ell_p$ attacks each has its own pros and cons; and there is no single attack that can successfully break through defense models that are robust against multiple $\ell_p$ norms simultaneously. Motivated by these observations, we come up with a natural approach: combining various $\ell_p$ gradient projections on a pixel level to achieve a joint adversarial perturbation. Specifically, we learn how to perturb each pixel to maximize the attack performance, while maintaining the overall visual imperceptibility of adversarial examples. Finally, through various experiments with standardized benchmarks, we show that our method outperforms most current strong attacks across state-of-the-art defense mechanisms, while retaining its ability to remain clean visually.

Robots have been brought to work close to humans in many scenarios. For coexistence and collaboration, robots should be safe and pleasant for humans to interact with. To this end, the robots could be both physically soft with multimodal sensing/perception, so that the robots could have better awareness of the surrounding environment, as well as to respond properly to humans' action/intention. This paper introduces a novel soft robotic link, named ProTac, that possesses multiple sensing modes: tactile and proximity sensing, based on computer vision and a functional material. These modalities come from a layered structure of a soft transparent silicon skin, a polymer dispersed liquid crystal (PDLC) film, and reflective markers. Here, the PDLC film can switch actively between the opaque and the transparent state, from which the tactile sensing and proximity sensing can be obtained by using cameras solely built inside the ProTac link. In this paper, inference algorithms for tactile proximity perception are introduced. Evaluation results of two sensing modalities demonstrated that, with a simple activation strategy, ProTac link could effectively perceive useful information from both approaching and in-contact obstacles. The proposed sensing device is expected to bring in ultimate solutions for design of robots with softness, whole-body and multimodal sensing, and safety control strategies.

Recent studies on adversarial images have shown that they tend to leave the underlying low-dimensional data manifold, making them significantly more challenging for current models to make correct predictions. This so-called off-manifold conjecture has inspired a novel line of defenses against adversarial attacks on images. In this study, we find a similar phenomenon occurs in the contextualized embedding space induced by pretrained language models, in which adversarial texts tend to have their embeddings diverge from the manifold of natural ones. Based on this finding, we propose Textual Manifold-based Defense (TMD), a defense mechanism that projects text embeddings onto an approximated embedding manifold before classification. It reduces the complexity of potential adversarial examples, which ultimately enhances the robustness of the protected model. Through extensive experiments, our method consistently and significantly outperforms previous defenses under various attack settings without trading off clean accuracy. To the best of our knowledge, this is the first NLP defense that leverages the manifold structure against adversarial attacks. Our code is available at \url{https://github.com/dangne/tmd}.

语义分割是开发医学图像诊断系统的重要任务。但是，构建注释的医疗数据集很昂贵。因此，在这种情况下，半监督方法很重要。在半监督学习中，标签的质量在模型性能中起着至关重要的作用。在这项工作中，我们提出了一种新的伪标签策略，可提高用于培训学生网络的伪标签的质量。我们遵循多阶段的半监督训练方法，该方法在标记的数据集上训练教师模型，然后使用训练有素的老师将伪标签渲染用于学生培训。通过这样做，伪标签将被更新，并且随着培训的进度更加精确。上一个和我们的方法之间的关键区别在于，我们在学生培训过程中更新教师模型。因此，在学生培训过程中，提高了伪标签的质量。我们还提出了一种简单但有效的策略，以使用动量模型来提高伪标签的质量 - 训练过程中原始模型的慢复制版本。通过应用动量模型与学生培训期间的重新渲染伪标签相结合，我们在五个数据集中平均达到了84.1％的骰子分数（即Kvarsir，CVC-ClinicdB，Etis-laribpolypdb，cvc-colondb，cvc-colondb，cvc-colondb和cvc-300）和CVC-300）只有20％的数据集用作标记数据。我们的结果超过了3％的共同实践，甚至在某些数据集中取得了完全监督的结果。我们的源代码和预培训模型可在https://github.com/sun-asterisk-research/online学习SSL上找到