在本文中，我们通过将无线电信息结合到最先进的检测方法中提出了一种无线电辅助人类检测框架，包括基于锚的oneStage检测器和两级检测器。我们从无线电信号中提取无线电定位和标识符信息以帮助人类检测，由于哪种错误阳性和假否定的问题可能会大大缓解。对于两个探测器，我们使用基于无线电定位的置信度评分修订来提高检测性能。对于两级检测方法，我们建议利用无线电定位产生的区域提案，而不是依赖于区域提案网络（RPN）。此外，利用无线电标识符信息，还提出了具有无线电定位约束的非最大抑制方法，以进一步抑制假检测并减少错过的检测。模拟Microsoft Coco DataSet和CALTECH步行数据集的实验表明，借助无线电信息可以改善平均平均精度（地图）和最先进的检测方法的错过率。最后，我们在现实世界的情况下进行实验，以展示我们在实践中的提出方法的可行性。

本文展示了基于射频（RF）信号的人为合成，该信号利用RF信号可以通过从人体的信号反射记录人类运动的事实。与现有的RF传感作品不同，只能粗略地感知人类，本文旨在通过引入新颖的跨模型RFGAN模型来产生细粒度的光学人体图像。具体地，我们首先构建一个配备有水平和垂直天线阵列的无线电系统以收发RF信号。由于反射的RF信号被处理为水平和垂直平面上的模糊信号投影加热器，因此我们在RFGAN中设计RF提取器，用于RF热图编码并组合以获得人类活动信息。然后，我们使用所提出的基于RF的自适应训练注入由RF-Extrutioner和RNN提取的信息作为GaN中的条件。最后，我们以端到端的方式训练整个模型。为了评估我们所提出的模型，我们创建了两个跨模型数据集（RF-Walk＆RF-Activity），其包含数千个光学人类活动帧和相应的RF信号。实验结果表明，RFGAN可以使用RF信号产生目标人类活动帧。据我们所知，这是基于RF信号生成光学图像的第一个工作。

由于无频率，隐私保护和RF信号的广泛覆盖性质，设备自由人的手势识别已得到赞誉。然而，在应用于新域时，从特定域收集的数据训练以识别的神经网络模型受到显着的性能下降。为了解决这一挑战，我们通过有效使用未标记的目标域数据，为设备免费手势识别提出了无监督的域适应框架。具体而言，我们使用伪标签和一致性正则化，并在目标域数据上进行详细设计，以生成伪标签并对齐目标域的实例特征。然后，我们通过随机擦除输入数据来设计两个数据增强方法以增强模型的稳健性。此外，我们应用置信控制约束来解决过度频繁问题。我们对公共WiFi数据集和公共毫米波雷达数据集进行了广泛的实验。实验结果表明了所提出的框架的优越效果。

使用毫米波（MMWAVE）信号的人类手势识别提供有吸引力的应用，包括智能家居和车载界面。虽然现有的作品在受控设置下实现有前途的性能，但实际应用仍然有限，因为需要密集数据收集，适应新域时的额外培训努力（即环境，人员和地点）和实时识别的表现不佳。在本文中，我们提出了Di-Gesture，一个独立于域和实时MMWAVE手势识别系统。具体地，我们首先导出与具有空间时间处理的人体手势对应的信号变化。为了增强系统的稳健性并减少数据收集工作，我们根据信号模式与手势变化之间的相关性设计数据增强框架。此外，我们提出了一种动态窗口机制来自动且准确地执行手势分割，从而能够实时识别。最后，我们建立了一种轻量级神经网络，以从用于手势分类的数据中提取空间信息。广泛的实验结果表明，Di-Gesture分别为新用户，环境和地点的平均精度为97.92％，99.18％和98.76％。在实时场景中，Di-Gesutre的准确性达到97％以上，平均推断时间为2.87ms，这表明了我们系统的优越稳健性和有效性。

Masked image modeling (MIM) performs strongly in pre-training large vision Transformers (ViTs). However, small models that are critical for real-world applications cannot or only marginally benefit from this pre-training approach. In this paper, we explore distillation techniques to transfer the success of large MIM-based pre-trained models to smaller ones. We systematically study different options in the distillation framework, including distilling targets, losses, input, network regularization, sequential distillation, etc, revealing that: 1) Distilling token relations is more effective than CLS token- and feature-based distillation; 2) An intermediate layer of the teacher network as target perform better than that using the last layer when the depth of the student mismatches that of the teacher; 3) Weak regularization is preferred; etc. With these findings, we achieve significant fine-tuning accuracy improvements over the scratch MIM pre-training on ImageNet-1K classification, using all the ViT-Tiny, ViT-Small, and ViT-base models, with +4.2%/+2.4%/+1.4% gains, respectively. Our TinyMIM model of base size achieves 52.2 mIoU in AE20K semantic segmentation, which is +4.1 higher than the MAE baseline. Our TinyMIM model of tiny size achieves 79.6% top-1 accuracy on ImageNet-1K image classification, which sets a new record for small vision models of the same size and computation budget. This strong performance suggests an alternative way for developing small vision Transformer models, that is, by exploring better training methods rather than introducing inductive biases into architectures as in most previous works. Code is available at https://github.com/OliverRensu/TinyMIM.

In this paper, we propose a robust 3D detector, named Cross Modal Transformer (CMT), for end-to-end 3D multi-modal detection. Without explicit view transformation, CMT takes the image and point clouds tokens as inputs and directly outputs accurate 3D bounding boxes. The spatial alignment of multi-modal tokens is performed implicitly, by encoding the 3D points into multi-modal features. The core design of CMT is quite simple while its performance is impressive. CMT obtains 73.0% NDS on nuScenes benchmark. Moreover, CMT has a strong robustness even if the LiDAR is missing. Code will be released at https://github.com/junjie18/CMT.

Dataset distillation has emerged as a prominent technique to improve data efficiency when training machine learning models. It encapsulates the knowledge from a large dataset into a smaller synthetic dataset. A model trained on this smaller distilled dataset can attain comparable performance to a model trained on the original training dataset. However, the existing dataset distillation techniques mainly aim at achieving the best trade-off between resource usage efficiency and model utility. The security risks stemming from them have not been explored. This study performs the first backdoor attack against the models trained on the data distilled by dataset distillation models in the image domain. Concretely, we inject triggers into the synthetic data during the distillation procedure rather than during the model training stage, where all previous attacks are performed. We propose two types of backdoor attacks, namely NAIVEATTACK and DOORPING. NAIVEATTACK simply adds triggers to the raw data at the initial distillation phase, while DOORPING iteratively updates the triggers during the entire distillation procedure. We conduct extensive evaluations on multiple datasets, architectures, and dataset distillation techniques. Empirical evaluation shows that NAIVEATTACK achieves decent attack success rate (ASR) scores in some cases, while DOORPING reaches higher ASR scores (close to 1.0) in all cases. Furthermore, we conduct a comprehensive ablation study to analyze the factors that may affect the attack performance. Finally, we evaluate multiple defense mechanisms against our backdoor attacks and show that our attacks can practically circumvent these defense mechanisms.

Blind image quality assessment (BIQA) remains challenging due to the diversity of distortion and image content variation, which complicate the distortion patterns crossing different scales and aggravate the difficulty of the regression problem for BIQA. However, existing BIQA methods often fail to consider multi-scale distortion patterns and image content, and little research has been done on learning strategies to make the regression model produce better performance. In this paper, we propose a simple yet effective Progressive Multi-Task Image Quality Assessment (PMT-IQA) model, which contains a multi-scale feature extraction module (MS) and a progressive multi-task learning module (PMT), to help the model learn complex distortion patterns and better optimize the regression issue to align with the law of human learning process from easy to hard. To verify the effectiveness of the proposed PMT-IQA model, we conduct experiments on four widely used public datasets, and the experimental results indicate that the performance of PMT-IQA is superior to the comparison approaches, and both MS and PMT modules improve the model's performance.

Automatic music generation with artificial intelligence typically requires a large amount of data which is hard to obtain for many less common genres and musical instruments. To tackle this issue, we present ongoing work and preliminary findings on the possibility for deep models to transfer knowledge from language to music, by finetuning large language models pre-trained on a massive text corpus on only hundreds of MIDI files of drum performances. We show that by doing so, one of the largest, state-of-the-art models (GPT3) is capable of generating reasonable drum grooves, while models that are not pre-trained (Transformer) shows no such ability beyond naive repetition. Evaluating generated music is a challenging task, more so is evaluating drum grooves with little precedence in literature. Hence, we propose a tailored structural evaluation method and analyze drum grooves produced by GPT3 compared to those played by human professionals, exposing the strengths and weaknesses of such generation by language-to-music transfer. Our findings suggest that language-to-music transfer learning with large language models is viable and promising.

Few Shot Instance Segmentation (FSIS) requires models to detect and segment novel classes with limited several support examples. In this work, we explore a simple yet unified solution for FSIS as well as its incremental variants, and introduce a new framework named Reference Twice (RefT) to fully explore the relationship between support/query features based on a Transformer-like framework. Our key insights are two folds: Firstly, with the aid of support masks, we can generate dynamic class centers more appropriately to re-weight query features. Secondly, we find that support object queries have already encoded key factors after base training. In this way, the query features can be enhanced twice from two aspects, i.e., feature-level and instance-level. In particular, we firstly design a mask-based dynamic weighting module to enhance support features and then propose to link object queries for better calibration via cross-attention. After the above steps, the novel classes can be improved significantly over our strong baseline. Additionally, our new framework can be easily extended to incremental FSIS with minor modification. When benchmarking results on the COCO dataset for FSIS, gFSIS, and iFSIS settings, our method achieves a competitive performance compared to existing approaches across different shots, e.g., we boost nAP by noticeable +8.2/+9.4 over the current state-of-the-art FSIS method for 10/30-shot. We further demonstrate the superiority of our approach on Few Shot Object Detection. Code and model will be available.