我们介绍了Caltech Fish计数数据集（CFC），这是一个用于检测，跟踪和计数声纳视频中鱼类的大型数据集。我们将声纳视频识别为可以推进低信噪比计算机视觉应用程序并解决多对象跟踪（MOT）和计数中的域概括的丰富数据来源。与现有的MOT和计数数据集相比，这些数据集主要仅限于城市中的人和车辆的视频，CFC来自自然世界领域，在该域​​中，目标不容易解析，并且无法轻易利用外观功能来进行目标重新识别。 CFC允许​​研究人员训练MOT和计数算法并评估看不见的测试位置的概括性能。我们执行广泛的基线实验，并确定在MOT和计数中推进概括的最新技术的关键挑战和机会。

The 1$^{\text{st}}$ Workshop on Maritime Computer Vision (MaCVi) 2023 focused on maritime computer vision for Unmanned Aerial Vehicles (UAV) and Unmanned Surface Vehicle (USV), and organized several subchallenges in this domain: (i) UAV-based Maritime Object Detection, (ii) UAV-based Maritime Object Tracking, (iii) USV-based Maritime Obstacle Segmentation and (iv) USV-based Maritime Obstacle Detection. The subchallenges were based on the SeaDronesSee and MODS benchmarks. This report summarizes the main findings of the individual subchallenges and introduces a new benchmark, called SeaDronesSee Object Detection v2, which extends the previous benchmark by including more classes and footage. We provide statistical and qualitative analyses, and assess trends in the best-performing methodologies of over 130 submissions. The methods are summarized in the appendix. The datasets, evaluation code and the leaderboard are publicly available at https://seadronessee.cs.uni-tuebingen.de/macvi.

It is desirable for detection and classification algorithms to generalize to unfamiliar environments, but suitable benchmarks for quantitatively studying this phenomenon are not yet available. We present a dataset designed to measure recognition generalization to novel environments. The images in our dataset are harvested from twenty camera traps deployed to monitor animal populations. Camera traps are fixed at one location, hence the background changes little across images; capture is triggered automatically, hence there is no human bias. The challenge is learning recognition in a handful of locations, and generalizing animal detection and classification to new locations where no training data is available. In our experiments state-of-the-art algorithms show excellent performance when tested at the same location where they were trained. However, we find that generalization to new locations is poor, especially for classification systems.

Multi-animal tracking (MAT), a multi-object tracking (MOT) problem, is crucial for animal motion and behavior analysis and has many crucial applications such as biology, ecology and animal conservation. Despite its importance, MAT is largely under-explored compared to other MOT problems such as multi-human tracking due to the scarcity of dedicated benchmarks. To address this problem, we introduce AnimalTrack, a dedicated benchmark for multi-animal tracking in the wild. Specifically, AnimalTrack consists of 58 sequences from a diverse selection of 10 common animal categories. On average, each sequence comprises of 33 target objects for tracking. In order to ensure high quality, every frame in AnimalTrack is manually labeled with careful inspection and refinement. To our best knowledge, AnimalTrack is the first benchmark dedicated to multi-animal tracking. In addition, to understand how existing MOT algorithms perform on AnimalTrack and provide baselines for future comparison, we extensively evaluate 14 state-of-the-art representative trackers. The evaluation results demonstrate that, not surprisingly, most of these trackers become degenerated due to the differences between pedestrians and animals in various aspects (e.g., pose, motion, and appearance), and more efforts are desired to improve multi-animal tracking. We hope that AnimalTrack together with evaluation and analysis will foster further progress on multi-animal tracking. The dataset and evaluation as well as our analysis will be made available at https://hengfan2010.github.io/projects/AnimalTrack/.

This paper presents a new large scale multi-person tracking dataset -- \texttt{PersonPath22}, which is over an order of magnitude larger than currently available high quality multi-object tracking datasets such as MOT17, HiEve, and MOT20 datasets. The lack of large scale training and test data for this task has limited the community's ability to understand the performance of their tracking systems on a wide range of scenarios and conditions such as variations in person density, actions being performed, weather, and time of day. \texttt{PersonPath22} dataset was specifically sourced to provide a wide variety of these conditions and our annotations include rich meta-data such that the performance of a tracker can be evaluated along these different dimensions. The lack of training data has also limited the ability to perform end-to-end training of tracking systems. As such, the highest performing tracking systems all rely on strong detectors trained on external image datasets. We hope that the release of this dataset will enable new lines of research that take advantage of large scale video based training data.

为视频中的每个像素分配语义类和跟踪身份的任务称为视频Panoptic分段。我们的工作是第一个在真实世界中瞄准这项任务，需要在空间和时间域中的密集解释。由于此任务的地面真理难以获得，但是，现有数据集是合成构造的或仅在短视频剪辑中稀疏地注释。为了克服这一点，我们介绍了一个包含两个数据集，Kitti-Step和Motchallenge步骤的新基准。数据集包含长视频序列，提供具有挑战性的示例和用于研究长期像素精确分割和在真实条件下跟踪的测试床。我们进一步提出了一种新的评估度量分割和跟踪质量（STQ），其相当余额平衡该任务的语义和跟踪方面，并且更适合评估任意长度的序列。最后，我们提供了几个基线来评估此新具有挑战性数据集的现有方法的状态。我们已将我们的数据集，公制，基准服务器和基准公开提供，并希望这将激发未来的研究。

Insects are the most important global pollinator of crops and play a key role in maintaining the sustainability of natural ecosystems. Insect pollination monitoring and management are therefore essential for improving crop production and food security. Computer vision facilitated pollinator monitoring can intensify data collection over what is feasible using manual approaches. The new data it generates may provide a detailed understanding of insect distributions and facilitate fine-grained analysis sufficient to predict their pollination efficacy and underpin precision pollination. Current computer vision facilitated insect tracking in complex outdoor environments is restricted in spatial coverage and often constrained to a single insect species. This limits its relevance to agriculture. Therefore, in this article we introduce a novel system to facilitate markerless data capture for insect counting, insect motion tracking, behaviour analysis and pollination prediction across large agricultural areas. Our system is comprised of edge computing multi-point video recording, offline automated multispecies insect counting, tracking and behavioural analysis. We implement and test our system on a commercial berry farm to demonstrate its capabilities. Our system successfully tracked four insect varieties, at nine monitoring stations within polytunnels, obtaining an F-score above 0.8 for each variety. The system enabled calculation of key metrics to assess the relative pollination impact of each insect variety. With this technological advancement, detailed, ongoing data collection for precision pollination becomes achievable. This is important to inform growers and apiarists managing crop pollination, as it allows data-driven decisions to be made to improve food production and food security.

对人类对象相互作用的理解在第一人称愿景（FPV）中至关重要。遵循相机佩戴者操纵的对象的视觉跟踪算法可以提供有效的信息，以有效地建模此类相互作用。在过去的几年中，计算机视觉社区已大大提高了各种目标对象和场景的跟踪算法的性能。尽管以前有几次尝试在FPV域中利用跟踪器，但仍缺少对最先进跟踪器的性能的有条理分析。这项研究差距提出了一个问题，即应使用当前的解决方案``现成''还是应进行更多特定领域的研究。本文旨在为此类问题提供答案。我们介绍了FPV中单个对象跟踪的首次系统研究。我们的研究广泛分析了42个算法的性能，包括通用对象跟踪器和基线FPV特定跟踪器。分析是通过关注FPV设置的不同方面，引入新的绩效指标以及与FPV特定任务有关的。这项研究是通过引入Trek-150（由150个密集注释的视频序列组成的新型基准数据集）来实现的。我们的结果表明，FPV中的对象跟踪对当前的视觉跟踪器构成了新的挑战。我们强调了导致这种行为的因素，并指出了可能的研究方向。尽管遇到了困难，但我们证明了跟踪器为需要短期对象跟踪的FPV下游任务带来好处。我们预计，随着新的和FPV特定的方法学会得到研究，通用对象跟踪将在FPV中受欢迎。

由于卷积神经网络（CNN）在过去的十年中检测成功，多对象跟踪（MOT）通过检测方法的使用来控制。随着数据集和基础标记网站的发布，研究方向已转向在跟踪时在包括重新识别对象的通用场景（包括重新识别（REID））上的最佳准确性。在这项研究中，我们通过提供专用的行人数据集并专注于对性能良好的多对象跟踪器的深入分析来缩小监视的范围）现实世界应用的技术。为此，我们介绍SOMPT22数据集；一套新的，用于多人跟踪的新套装，带有带注释的简短视频，该视频从位于杆子上的静态摄像头捕获，高度为6-8米，用于城市监视。与公共MOT数据集相比，这提供了室外监视的MOT的更为集中和具体的基准。我们分析了该新数据集上检测和REID网络的使用方式，分析了将MOT跟踪器分类为单发和两阶段。我们新数据集的实验结果表明，SOTA远非高效率，而单一跟踪器是统一快速执行和准确性的良好候选者，并具有竞争性的性能。该数据集将在以下网址提供：sompt22.github.io

The ability to capture detailed interactions among individuals in a social group is foundational to our study of animal behavior and neuroscience. Recent advances in deep learning and computer vision are driving rapid progress in methods that can record the actions and interactions of multiple individuals simultaneously. Many social species, such as birds, however, live deeply embedded in a three-dimensional world. This world introduces additional perceptual challenges such as occlusions, orientation-dependent appearance, large variation in apparent size, and poor sensor coverage for 3D reconstruction, that are not encountered by applications studying animals that move and interact only on 2D planes. Here we introduce a system for studying the behavioral dynamics of a group of songbirds as they move throughout a 3D aviary. We study the complexities that arise when tracking a group of closely interacting animals in three dimensions and introduce a novel dataset for evaluating multi-view trackers. Finally, we analyze captured ethogram data and demonstrate that social context affects the distribution of sequential interactions between birds in the aviary.

由于其前所未有的优势，在规模，移动，部署和隐蔽观察能力方面，空中平台和成像传感器的快速出现是实现新的空中监测形式。本文从计算机视觉和模式识别的角度来看，全面概述了以人为本的空中监控任务。它旨在为读者提供使用无人机，无人机和其他空中平台的空中监测任务当前状态的深入系统审查和技术分析。感兴趣的主要对象是人类，其中要检测单个或多个受试者，识别，跟踪，重新识别并进行其行为。更具体地，对于这四项任务中的每一个，我们首先讨论与基于地面的设置相比在空中环境中执行这些任务的独特挑战。然后，我们审查和分析公共可用于每项任务的航空数据集，并深入了解航空文学中的方法，并调查他们目前如何应对鸟瞰挑战。我们在讨论缺失差距和开放研究问题的讨论中得出结论，告知未来的研究途径。

智能城市应用程序（例如智能交通路由或事故预防）依赖计算机视觉方法来确切的车辆定位和跟踪。由于精确标记的数据缺乏，从多个摄像机中检测和跟踪3D的车辆被证明是探索挑战的。我们提出了一个庞大的合成数据集，用于多个重叠和非重叠摄像头视图中的多个车辆跟踪和分割。与现有的数据集不同，该数据集仅为2D边界框提供跟踪地面真实，我们的数据集还包含适用于相机和世界坐标中的3D边界框的完美标签，深度估计以及实例，语义和泛型细分。该数据集由17个小时的标记视频材料组成，从64个不同的一天，雨，黎明和夜幕播放的340张摄像机录制，使其成为迄今为止多目标多型多相机跟踪的最广泛数据集。我们提供用于检测，车辆重新识别以及单摄像机跟踪的基准。代码和数据公开可用。

The problem of tracking multiple objects in a video sequence poses several challenging tasks. For tracking-bydetection, these include object re-identification, motion prediction and dealing with occlusions. We present a tracker (without bells and whistles) that accomplishes tracking without specifically targeting any of these tasks, in particular, we perform no training or optimization on tracking data. To this end, we exploit the bounding box regression of an object detector to predict the position of an object in the next frame, thereby converting a detector into a Tracktor. We demonstrate the potential of Tracktor and provide a new state-of-the-art on three multi-object tracking benchmarks by extending it with a straightforward re-identification and camera motion compensation.We then perform an analysis on the performance and failure cases of several state-of-the-art tracking methods in comparison to our Tracktor. Surprisingly, none of the dedicated tracking methods are considerably better in dealing with complex tracking scenarios, namely, small and occluded objects or missing detections. However, our approach tackles most of the easy tracking scenarios. Therefore, we motivate our approach as a new tracking paradigm and point out promising future research directions. Overall, Tracktor yields superior tracking performance than any current tracking method and our analysis exposes remaining and unsolved tracking challenges to inspire future research directions.

卫星摄像机可以为大型区域提供连续观察，这对于许多遥感应用很重要。然而，由于对象的外观信息不足和缺乏高质量数据集，在卫星视频中实现移动对象检测和跟踪仍然具有挑战性。在本文中，我们首先构建一个具有丰富注释的大型卫星视频数据集，用于移动对象检测和跟踪的任务。该数据集由Jilin-1卫星星座收集，并由47个高质量视频组成，对象检测有1,646,038兴趣的情况和用于对象跟踪的3,711个轨迹。然后，我们引入运动建模基线，以提高检测速率并基于累积多帧差异和鲁棒矩阵完成来减少误报。最后，我们建立了第一个用于在卫星视频中移动对象检测和跟踪的公共基准，并广泛地评估在我们数据集上几种代表方法的性能。还提供了综合实验分析和富有魅力的结论。数据集可在https://github.com/qingyonghu/viso提供。

Tracking has traditionally been the art of following interest points through space and time. This changed with the rise of powerful deep networks. Nowadays, tracking is dominated by pipelines that perform object detection followed by temporal association, also known as tracking-by-detection. We present a simultaneous detection and tracking algorithm that is simpler, faster, and more accurate than the state of the art. Our tracker, CenterTrack, applies a detection model to a pair of images and detections from the prior frame. Given this minimal input, CenterTrack localizes objects and predicts their associations with the previous frame. That's it. CenterTrack is simple, online (no peeking into the future), and real-time. It achieves 67.8% MOTA on the MOT17 challenge at 22 FPS and 89.4% MOTA on the KITTI tracking benchmark at 15 FPS, setting a new state of the art on both datasets. CenterTrack is easily extended to monocular 3D tracking by regressing additional 3D attributes. Using monocular video input, it achieves 28.3% AMOTA@0.2 on the newly released nuScenes 3D tracking benchmark, substantially outperforming the monocular baseline on this benchmark while running at 28 FPS.

多摄像机跟踪系统在需要高质量跟踪结果的应用中获得普及，例如摩擦结账，因为单眼多物体跟踪（MOT）系统由于闭塞而在杂乱和拥挤的环境中经常失败。通过恢复部分3D信息，多个高度重叠的相机可以显着减轻问题。但是，使用不同的相机设置和背景创建高质量多摄像头跟踪数据集的成本在该域中的数据集比例限制了数据集尺度。在本文中，我们在自动注释系统的帮助下提供了五种不同环境的大型密集标记的多摄像头跟踪数据集。该系统使用重叠和校准的深度和RGB相机来构建高性能3D跟踪器，可自动生成3D跟踪结果。使用摄像机参数将3D跟踪结果投影到每个RGB摄像头视图以创建2D跟踪结果。然后，我们手动检查并更正3D跟踪结果以确保标签质量，比完全手动注释便宜得多。我们使用两个实时多相机跟踪器和具有不同设置的人重新识别（REID）模型进行了广泛的实验。该数据集在杂乱和拥挤的环境中提供了更可靠的多摄像头，多目标跟踪系统的基准。此外，我们的结果表明，在此数据集中调整跟踪器和REID模型显着提高了它们的性能。我们的数据集将在接受这项工作后公开发布。

多目标跟踪（MOT）的典型管道是使用探测器进行对象本地化，并在重新识别（RE-ID）之后进行对象关联。该管道通过对象检测和重新ID的最近进展部分而部分地激励，并且部分地通过现有的跟踪数据集中的偏差激励，其中大多数物体倾向于具有区分外观和RE-ID模型足以建立关联。为了响应这种偏见，我们希望重新强调多目标跟踪的方法也应该在对象外观不充分辨别时起作用。为此，我们提出了一个大型数据集，用于多人跟踪，人类具有相似的外观，多样化的运动和极端关节。由于数据集包含主要组跳舞视频，我们将其命名为“DanceTrack”。我们预计DanceTrack可以提供更好的平台，以开发更多的MOT算法，这些算法依赖于视觉识别并更依赖于运动分析。在我们的数据集上，我们在数据集上基准测试了几个最先进的追踪器，并在与现有基准测试中遵守DanceTrack的显着性能下降。 DataSet，项目代码和竞争服务器播放：\ url {https://github.com/danceTrack}。

最近的多目标跟踪（MOT）系统利用高精度的对象探测器;然而，培训这种探测器需要大量标记的数据。虽然这种数据广泛适用于人类和车辆，但其他动物物种显着稀缺。我们目前稳健的置信跟踪（RCT），一种算法，旨在保持鲁棒性能，即使检测质量差。与丢弃检测置信信息的先前方法相比，RCT采用基本上不同的方法，依赖于精确的检测置信度值来初始化曲目，扩展轨道和滤波器轨道。特别地，RCT能够通过有效地使用低置信度检测（以及单个物体跟踪器）来最小化身份切换，以保持对象的连续轨道。为了评估在存在不可靠的检测中的跟踪器，我们提出了一个挑战的现实世界水下鱼跟踪数据集，Fishtrac。在对FISHTRAC以及UA-DETRAC数据集的评估中，我们发现RCT在提供不完美的检测时优于其他算法，包括最先进的深单和多目标跟踪器以及更经典的方法。具体而言，RCT具有跨越方法的最佳平均热量，可以成功返回所有序列的结果，并且具有比其他方法更少的身份交换机。

The tracking-by-detection paradigm today has become the dominant method for multi-object tracking and works by detecting objects in each frame and then performing data association across frames. However, its sequential frame-wise matching property fundamentally suffers from the intermediate interruptions in a video, such as object occlusions, fast camera movements, and abrupt light changes. Moreover, it typically overlooks temporal information beyond the two frames for matching. In this paper, we investigate an alternative by treating object association as clip-wise matching. Our new perspective views a single long video sequence as multiple short clips, and then the tracking is performed both within and between the clips. The benefits of this new approach are two folds. First, our method is robust to tracking error accumulation or propagation, as the video chunking allows bypassing the interrupted frames, and the short clip tracking avoids the conventional error-prone long-term track memory management. Second, the multiple frame information is aggregated during the clip-wise matching, resulting in a more accurate long-range track association than the current frame-wise matching. Given the state-of-the-art tracking-by-detection tracker, QDTrack, we showcase how the tracking performance improves with our new tracking formulation. We evaluate our proposals on two tracking benchmarks, TAO and MOT17 that have complementary characteristics and challenges each other.

多媒体异常数据集在自动监视中发挥着至关重要的作用。它们具有广泛的应用程序，从异常对象/情况检测到检测危及生命事件的检测。该字段正在接收大量的1.5多年的巨大研究兴趣，因此，已经创建了越来越多地专用于异常动作和对象检测的数据集。点击这些公共异常数据集使研究人员能够生成和比较具有相同输入数据的各种异常检测框架。本文介绍了各种视频，音频以及基于异常检测的应用的综合调查。该调查旨在解决基于异常检测的多媒体公共数据集缺乏全面的比较和分析。此外，它可以帮助研究人员选择最佳可用数据集，用于标记框架。此外，我们讨论了现有数据集和未来方向洞察中开发多峰异常检测数据集的差距。