2-megapixel AI cameras
Hanwha Techwin has added five 2-megapixel high-definition AI cameras to its Wisenet P series. The new cameras are designed to complement the 4K models that the manufacturer launched in 2020.
As with the 4K models， the new cameras come with Deep Learning AI video analytics which delivers detection accuracy， while minimising false alarms， the developers say. It does so by simultaneously detecting and classifying various object types， such as people， vehicles， faces and car number plates.
The AI video analytics is supported by Wisenet AI algorithms which identify the attributes of objects or people， such as their age group and gender or the colour of clothes. The attributes are saved as metadata alongside the images from the Wisenet P series AI cameras. A users can search for specific objects or incidents. The algorithms are even able to recognise if a person is wearing glasses or is holding a bag.
Operators can use VMS (video management software) from developers such as Genetec and Milestone Systems， as well as Hanwha Techwin’s Wisenet WAVE and Wisenet SSM， to forensically search for specific objects or people by filtering the recorded metadata， as well as use the search features of the latest Wisenet X network recorders (
NVRs) which are able to read AI metadata from the cameras.
A recent firmware update， incorporated into the 2-megapixel cameras and available as a downloadable upgrade for the 4K models， sees face mask detection and social distancing analytics added. There is also enhanced people counting and queue management functionality. To help remove the risk of overcrowding and to assist， for example， store managers make best use of staffing， this includes the ability to count the number of people queuing and generate alerts if a set maximum number is passed.
The cameras also come with Hanwha Techwin’s Occupancy Monitoring application which generates alarm outputs that can be used to control automatic doors or a traffic beacon， as well as trigger the display of ‘wait’ or ‘enter’ messages when the maximum permitted number of people allowed in an area at one time， has been reached. With these various licence-free Deep Learning AI video analytics applications available as standard on the Wisenet P series AI cameras， users do not have to incur the cost of purchasing licences to be allowed to use them.
Features of the new 2-megapixel Wisenet P cameras include：
– Digital auto-tracking which enables the cameras to transmit two streams of video， providing the option for operators to see a camera’s full field of view， while at the same time using a digital PTZ auto-tracking feature while viewing Full HD images， to track the movements of a person or vehicle.
– WiseNRII optimises image noise reduction to reduce blurring.
– 50ma output which can be used to power LEDs， sensors or glass break detectors.
The new cameras come with WiseStream III complementary compression. This applies a low compression rate to objects and people which are detected and tracked by AI， while applying high compression to the remaining field of view. When combined with H.265， this results in an improvement in bandwidth efficiency by up to 80 per cent the makers claim compared to H.264.
Hanwha Techwin公司为其Wisenet P 系列增加了五款2百万像素高清AI摄像机。新款的摄像机旨在作为该公司于2020年推出的4K型号的补充。
与4K型号一样，新相机配备了深度学习 AI 视频分析，可提供检测准确性，同时最大限度地减少误报。它通过同时检测和分类各种对象类型，例如人、车辆、人脸和车牌。
AI视频分析由Wisenet AI算法支持，该算法可识别对象或人的属性，例如年龄组和性别或衣服的颜色。这些属性与来Wisenet P系列AI摄相机捕获的图像一起保存为元数据，用户就可以搜索特定对象或事件。该算法甚至能够识别一个人是戴眼镜还是拿着包。
运营商可以使用Genetec和Milestone Systems等开发商的 VMS（视频管理软件），以及Hanwha Techwin 的Wisenet WAVE和 Wisenet SSM，通过过滤记录的元数据来取证搜索特定对象或人员，并使用最新的 Wisenet X 网络录像机 (NVR)搜索功能从摄像机读取AI元数据。
最近的固件更新包含在2百万像素摄相机中，可作为4K型号的可下载升级，并且增加了面罩检测和社交距离分析和增强的人数统计和队列管理功能。例如，为了帮助消除过度拥挤的风险并协助商店经理充分利用人员配备，这包括能够计算排队人数并在超过设定的最大人数时发出警报。
这些摄像机还配备了Hanwha Techwin 的占用率
监控应用程序，该应用程序可生成警报输出，可用于控制
自动门或交通信标，并在区域内出现允许的最大人数时触发“等待”或“进入”的信息。借助Wisenet P系列AI摄像机标配的各种免许可证深度学习AI视频分析应用程序，用户无需支付购买许可证的费用即可使用它们。
新型2百万像素Wisenet P摄相机的功能包括：
– 数字自动跟踪功能，使摄像机能够传输两个视频流，为操作员提供查看摄像机全视野的选项，且在查看全高清图像的同时可以使用数字PTZ自动跟踪功能，以便跟踪人或车辆的运动。
– WiseNRII优化图像降噪以减少模糊。
新相机配备了WiseStream III互补压缩。这对AI 检测和跟踪的物体和人物应用低压缩率，二同时对其他的视野应用高压缩率。当与 H.265 结合使用时，与 H.264 相比，这可将带宽效率提高多达80%。
