Person recognition at a distance entails recognizing the identity of an individual appearing in images or videos collected by long-range imaging systems such as drones or surveillance cameras. Despite recent advances in deep convolutional neural networks (DCNNs), this remains challenging. Images or videos collected by long-range cameras often suffer from atmospheric turbulence, blur, low-resolution, unconstrained poses, and poor illumination. In this paper, we provide a brief survey of recent advances in person recognition at a distance. In particular, we review recent work in multi-spectral face verification, person re-identification, and gait-based analysis techniques. Furthermore, we discuss the merits and drawbacks of existing approaches and identify important, yet under explored challenges for deploying remote person recognition systems in-the-wild.

展示了在欧洲生物安全卓越网络框架内设计和获取的新的多模态生物识别数据库。它由600多个个人在三种情况下在三种情况下获得：1）在互联网上，2）在带台式PC的办公环境中，以及3）在室内/室外环境中，具有移动便携式硬件。这三种方案包括音频/视频数据的共同部分。此外，已使用桌面PC和移动便携式硬件获取签名和指纹数据。此外，使用桌面PC在第二个方案中获取手和虹膜数据。收购事项已于11名欧洲机构进行。 BioSecure多模式数据库（BMDB）的其他功能有：两个采集会话，在某些方式的几种传感器，均衡性别和年龄分布，多式化现实情景，每种方式，跨欧洲多样性，人口统计数据的可用性，以及人口统计数据的可用性与其他多模式数据库的兼容性。 BMDB的新型收购条件允许我们对单币或多模式生物识别系统进行新的具有挑战性的研究和评估，如最近的生物安全的多模式评估活动。还给出了该活动的描述，包括来自新数据库的单个模式的基线结果。预计数据库将通过2008年通过生物安全协会进行研究目的

通过生物手段自动验证一个人的身份是在每天的日常活动，如在机场访问银行服务和安全控制的一个重要应用。为了提高系统的可靠性，通常使用几个生物识别设备。这种组合系统被称为多模式生物测定系统。本文报道生物安全DS2（访问控制）评估由英国萨里大学举办的活动，包括面部，指纹和虹膜的个人认证生物特征的框架内进行基准研究，在媒体针对物理访问控制中的应用-size建立一些500人。虽然多峰生物测定是公调查对象，不存在基准融合算法的比较。朝着这个目标努力，我们设计了两组实验：质量依赖性和成本敏感的评估。质量依赖性评价旨在评估融合算法如何可以在变化的原始图像的质量主要是由于设备的变化来执行。在对成本敏感的评价，另一方面，研究了一种融合算法可以如何执行给定的受限的计算和在软件和硬件故障的存在，从而导致错误，例如失败到获取和失败到匹配。由于多个捕捉设备可用，融合算法应该能够处理这种非理想但仍然真实的场景。在这两种评价中，各融合算法被提供有从每个生物统计比较子系统以及两个模板和查询数据的质量度量得分。在活动的号召的响应证明是非常令人鼓舞的，与提交22个融合系统。据我们所知，这是第一次尝试基准品质为基础多模态融合算法。

In recent years, visible-spectrum face verification systems have been shown to match the performance of experienced forensic examiners. However, such systems are ineffective in low-light and nighttime conditions. Thermal face imagery, which captures body heat emissions, effectively augments the visible spectrum, capturing discriminative facial features in scenes with limited illumination. Due to the increased cost and difficulty of obtaining diverse, paired thermal and visible spectrum datasets, not many algorithms and large-scale benchmarks for low-light recognition are available. This paper presents an algorithm that achieves state-of-the-art performance on both the ARL-VTF and TUFTS multi-spectral face datasets. Importantly, we study the impact of face alignment, pixel-level correspondence, and identity classification with label smoothing for multi-spectral face synthesis and verification. We show that our proposed method is widely applicable, robust, and highly effective. In addition, we show that the proposed method significantly outperforms face frontalization methods on profile-to-frontal verification. Finally, we present MILAB-VTF(B), a challenging multi-spectral face dataset that is composed of paired thermal and visible videos. To the best of our knowledge, with face data from 400 subjects, this dataset represents the most extensive collection of indoor and long-range outdoor thermal-visible face imagery. Lastly, we show that our end-to-end thermal-to-visible face verification system provides strong performance on the MILAB-VTF(B) dataset.