The recent trend in multiple object tracking (MOT) is jointly solving detection and tracking, where object detection and appearance feature (or motion) are learned simultaneously. Despite competitive performance, in crowded scenes, joint detection and tracking usually fail to find accurate object associations due to missed or false detections. In this paper, we jointly model counting, detection and re-identification in an end-to-end framework, named CountingMOT, tailored for crowded scenes. By imposing mutual object-count constraints between detection and counting, the CountingMOT tries to find a balance between object detection and crowd density map estimation, which can help it to recover missed detections or reject false detections. Our approach is an attempt to bridge the gap of object detection, counting, and re-Identification. This is in contrast to prior MOT methods that either ignore the crowd density and thus are prone to failure in crowded scenes, or depend on local correlations to build a graphical relationship for matching targets. The proposed MOT tracker can perform online and real-time tracking, and achieves the state-of-the-art results on public benchmarks MOT16 (MOTA of 77.6), MOT17 (MOTA of 78.0%) and MOT20 (MOTA of 70.2%).
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联合学习(FL)支持地理分布式设备的培训模型。然而,传统的FL系统采用集中式同步策略,提高了高通信压力和模型泛化挑战。 FL的现有优化未能加速异构设备的培训或遭受差的通信效率。在本文中,我们提出了一个支持在异构设备上分散的异步训练的框架的Hadfl。使用本地数据的异质性感知本地步骤本地培训设备。在每个聚合循环中,基于执行模型同步和聚合的概率来选择它们。与传统的FL系统相比,HADFL可以减轻中心服务器的通信压力,有效地利用异构计算能力,并且可以分别实现比Pytorch分布式训练方案分别的最大加速度为3.15倍,而不是Pytorch分布式训练方案,几乎没有损失收敛准确性。
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在本文中,我们通过利用全新监督学习来推进面部表情识别(FER)的表现。本领域技术的当前状态通常旨在通过具有有限数量的样本的培训模型来识别受控环境中的面部表达。为了增强学习模型的各种场景的稳健性,我们建议通过利用标记的样本以及大量未标记的数据来执行全能监督学习。特别是,我们首先使用MS-CeleB-1M作为面部池,其中包括大约5,822k未标记的面部图像。然后,采用基于少量标记样品的原始模型来通过进行基于特征的相似性比较来选择具有高度自信心的样本。我们发现以这种全局监督方式构建的新数据集可以显着提高学习的FER模型的泛化能力,并因此提高了性能。然而,随着使用更多的训练样本,需要更多的计算资源和培训时间,在许多情况下通常不能实惠。为了减轻计算资源的要求,我们进一步采用了数据集蒸馏策略,以将目标任务相关知识从新的开采样本中蒸馏,并将其压缩成一组非常小的图像。这种蒸馏的数据集能够提高FER的性能,额外的额外计算成本。我们在五个流行的基准和新构造的数据集中执行广泛的实验,其中可以使用所提出的框架在各种设置下实现一致的收益。我们希望这项工作作为一个坚实的基线,并帮助缓解FER的未来研究。
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Recently, great progress has been made in single-image super-resolution (SISR) based on deep learning technology. However, the existing methods usually require a large computational cost. Meanwhile, the activation function will cause some features of the intermediate layer to be lost. Therefore, it is a challenge to make the model lightweight while reducing the impact of intermediate feature loss on the reconstruction quality. In this paper, we propose a Feature Interaction Weighted Hybrid Network (FIWHN) to alleviate the above problem. Specifically, FIWHN consists of a series of novel Wide-residual Distillation Interaction Blocks (WDIB) as the backbone, where every third WDIBs form a Feature shuffle Weighted Group (FSWG) by mutual information mixing and fusion. In addition, to mitigate the adverse effects of intermediate feature loss on the reconstruction results, we introduced a well-designed Wide Convolutional Residual Weighting (WCRW) and Wide Identical Residual Weighting (WIRW) units in WDIB, and effectively cross-fused features of different finenesses through a Wide-residual Distillation Connection (WRDC) framework and a Self-Calibrating Fusion (SCF) unit. Finally, to complement the global features lacking in the CNN model, we introduced the Transformer into our model and explored a new way of combining the CNN and Transformer. Extensive quantitative and qualitative experiments on low-level and high-level tasks show that our proposed FIWHN can achieve a good balance between performance and efficiency, and is more conducive to downstream tasks to solve problems in low-pixel scenarios.
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Learning with noisy labels is a vital topic for practical deep learning as models should be robust to noisy open-world datasets in the wild. The state-of-the-art noisy label learning approach JoCoR fails when faced with a large ratio of noisy labels. Moreover, selecting small-loss samples can also cause error accumulation as once the noisy samples are mistakenly selected as small-loss samples, they are more likely to be selected again. In this paper, we try to deal with error accumulation in noisy label learning from both model and data perspectives. We introduce mean point ensemble to utilize a more robust loss function and more information from unselected samples to reduce error accumulation from the model perspective. Furthermore, as the flip images have the same semantic meaning as the original images, we select small-loss samples according to the loss values of flip images instead of the original ones to reduce error accumulation from the data perspective. Extensive experiments on CIFAR-10, CIFAR-100, and large-scale Clothing1M show that our method outperforms state-of-the-art noisy label learning methods with different levels of label noise. Our method can also be seamlessly combined with other noisy label learning methods to further improve their performance and generalize well to other tasks. The code is available in https://github.com/zyh-uaiaaaa/MDA-noisy-label-learning.
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我们解决了从一般标记(例如电影海报)估计对应关系到捕获这种标记的图像的问题。通常,通过拟合基于稀疏特征匹配的同型模型来解决此问题。但是,他们只能处理类似平面的标记,而稀疏功能不能充分利用外观信息。在本文中,我们提出了一个新颖的框架神经标记器,训练神经网络估计在各种具有挑战性的条件下(例如标记变形,严格的照明等)估算密集标记的对应关系。此外,我们还提出了一种新颖的标记通信评估方法,对真实标记的注释进行了注释。 - 图像对并创建一个新的基准测试。我们表明,神经标记的表现明显优于以前的方法,并实现了新的有趣应用程序,包括增强现实(AR)和视频编辑。
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本文介绍了对体现药物(Genea)挑战2022的非语言行为的生成和评估的重生条目。Genea挑战提供了处理后的数据集并进行众包评估,以比较不同手势生成系统的性能。在本文中,我们探讨了基于多模式表示学习的自动手势生成系统。我们将WAVLM功能用于音频,FastText功能,用于文本,位置和旋转矩阵功能用于手势。每个模态都投影到两个不同的子空间:模态不变和特定于模态。为了学习模式间不变的共同点并捕获特定于模态表示的字符,在训练过程中使用了基于梯度逆转层的对抗分类器和模态重建解码器。手势解码器使用与音频中的节奏相关的所有表示和功能生成适当的手势。我们的代码,预培训的模型和演示可在https://github.com/youngseng/represture上找到。
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面部表达识别(FER)是一个具有挑战性的问题,因为表达成分始终与其他无关的因素(例如身份和头部姿势)纠缠在一起。在这项工作中,我们提出了一个身份,并构成了分离的面部表达识别(IPD-fer)模型,以了解更多的判别特征表示。我们认为整体面部表征是身份,姿势和表达的组合。这三个组件用不同的编码器编码。对于身份编码器,在培训期间使用和固定了一个经过良好训练的面部识别模型,这可以减轻对先前工作中对特定表达训练数据的限制,并使野外数据集的分离可行。同时,用相应的标签优化了姿势和表达编码器。结合身份和姿势特征,解码器应生成输入个体的中性面。添加表达功能时,应重建输入图像。通过比较同一个体的合成中性图像和表达图像之间的差异,表达成分与身份和姿势进一步分离。实验结果验证了我们方法对实验室控制和野外数据库的有效性,并实现了最新的识别性能。
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我们提出了一种新的表结构识别方法(TSR)方法,称为TSRFormer,以稳健地识别来自各种表图像的几何变形的复杂表的结构。与以前的方法不同,我们将表分离线预测作为线回归问题,而不是图像分割问题,并提出了一种新的两阶段基于基于DETR的分离器预测方法,称为\ textbf {sep} arator \ textbf {re} re} tr} ansformer(sepretr),直接预测与表图像的分离线。为了使两阶段的DETR框架有效地有效地在分离线预测任务上工作,我们提出了两个改进:1)一种先前增强的匹配策略,以解决慢速收敛问题的detr; 2)直接来自高分辨率卷积特征图的样本特征的新的交叉注意模块,以便以低计算成本实现高定位精度。在分离线预测之后,使用简单的基于关系网络的单元格合并模块来恢复跨越单元。借助这些新技术,我们的TSRFormer在包括SCITSR,PubTabnet和WTW在内的多个基准数据集上实现了最先进的性能。此外,我们已经验证了使用复杂的结构,无边界的单元,大空间,空的或跨越的单元格以及在更具挑战性的现实世界内部数据集中扭曲甚至弯曲的形状的桌子的鲁棒性。
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在线和离线手写的中文文本识别(HTCR)已经研究了数十年。早期方法采用了基于过度裂段的策略,但遭受低速,准确性不足和角色分割注释的高成本。最近,基于连接主义者时间分类(CTC)和注意机制的无分割方法主导了HCTR的领域。但是,人们实际上是按字符读取文本的,尤其是对于中文等意识形态图。这就提出了一个问题:无细分策略真的是HCTR的最佳解决方案吗?为了探索此问题,我们提出了一种基于细分的新方法,用于识别使用简单但有效的完全卷积网络实现的手写中文文本。提出了一种新型的弱监督学习方法,以使网络仅使用笔录注释进行训练。因此,可以避免以前基于细分的方法所需的昂贵字符分割注释。由于缺乏完全卷积网络中的上下文建模,我们提出了一种上下文正则化方法,以在培训阶段将上下文信息集成到网络中,这可以进一步改善识别性能。在四个广泛使用的基准测试中进行的广泛实验,即Casia-HWDB,Casia-Olhwdb,ICDAR2013和Scut-HCCDOC,表明我们的方法在线和离线HCTR上都显着超过了现有方法,并且表现出比CTC/ CTC/ CTC/ CTC/ CTC/速度高得多的方法。基于注意力的方法。
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