As the first batch of demonstration cities in the "Snow Liang Project", Zhejiang Quzhou is relying on Alibaba Cloud's ET city brain innovation exploration, designing the "four networks and one brain" overall architecture, establishing a global perception system through artificial intelligence, and opening up the last kilometer of the sense of security of the people. ".
The city's brains in Quzhou can realize intelligent video analytics construction that can be regulated and real-time. Through machine vision, big data, artificial intelligence and other technologies, they can break the old work model and integrate cross-regional, cross-department, and cross-level data to promote sharing.
From the "eyes" who just look at them, to "minds" that can see and think
Deepening video surveillance applications, establishing a comprehensive video image analysis system, and visualizing real-time control of key areas or events in real time, and improving the combat effectiveness of three-dimensional and intelligent public security prevention and control systems is the most important goal of the "Snow Liang Project."
Luzhou Comprehensive Management Office introduced that a prominent feature of the “Snowing Project” in Zhangzhou is relying on the brain of artificial intelligence Alibaba Cloud’s ET city, and greatly enhancing the level of intelligent application, not only making big data analysis even more powerful, but also making “Snowing Engineering” look The "eye" has been upgraded to "mind" that can be considered.
In the case of a vehicle theft case that occurred in Quzhou City in early 2017 as an example, in the event that the video surveillance application was not yet intelligent, in order to detect the case, two policemen read a large amount of video data and spent 6 hours along the line. 4 km 17 points video found vehicles and suspects.
Then use the city's brain to recalculate the case: retrieve the vehicle information from the police to obtain the first stolen image, and calculate through the “brain” cross-camera search, which will lock the target in only 18 minutes, and apply to pedestrian recognition and video. High-dimensional feature retrieval, multi-dimensional data fusion and other intelligent technologies.
This is just a microcosm of how smart security works. In addition, it can also play a role in the scene of group housing management. In the future, the work of the police in house-to-house inspections will be performed by the “brain”.
The city brain can support hundreds of video at the same time and achieve dynamic scheduling, which can be dispersed in different areas, or can be concentrated according to emergency needs. For example, we usually focus on Internet cafes, KTVs, and other places with high fires. In large-scale sports events, concerts, and spring festivals, it is possible to focus on crowded places such as stadiums, stations, squares, etc. to prevent accidents such as crowded trampling.
World-class technology research and development platform behind "brains"
From reading the camera to thinking, being able to judge, and making decisions, this applies to a series of world-class technologies.
In the urban scene, pedestrians and vehicles are mobile. When the same pedestrian crosses the camera, due to the differences in shielding, lighting, angle, distance, and posture, the accuracy of recognition is greatly challenged.
To solve this problem, Alibaba's iDST vision computing team has adopted a number of world-class technological innovations.
In terms of pedestrian detection, a cascaded network based on target size classification is proposed, and the context information of the region of interest is fully utilized to enhance feature extraction capabilities. It wins a single champion in the global authoritative machine vision algorithm ranking KITTI.
In terms of pedestrian recognition, not only the latest deep learning technology is used to extract the global features of pedestrians, but also super resolution modules and deep attention networks are used to obtain local and detailed features such as the head and trunk to further improve the accuracy of pedestrian recognition across camera scenes. Sex. This technology ranks first in the world in the well-known pedestrian recognition data set Market1501.
Ai Baba vice president of iDST and IEEE Fellow Hua Xiansheng have stated that the application scenario of the city’s brain is the starting point of many technological researches, and the research results will all help them to land. Hua Xiansheng is an international authoritative scholar in the field of visual identification and search. He was elected as an academician of the International Association for Electrical and Electronic Engineering (IEEEFellow) and the ACM Outstanding Scientist of the American Computer Association.
Previously, the iDST team also broke the KITTI world record with a vehicle detection rate of 90.55%, and 3 papers on human trajectory judgment and traffic data sample research were selected at the top international academic conference ACMMM.
It is with the support of these world-class technologies that ultimately enables the “brains” to effectively analyze video images in real time, achieve multi-camera linkage analysis, cross-camera cooperation analysis, and multi-billion-level images for image search and high-precision full-coverage extraction of images. Features and other functions, and play a role in urban traffic search, traffic video big data and so on.
Establishing a new national demonstration, artificial intelligence guarding the people's peace
Looking at the whole country, this attempt by Zhangzhou is a brand-new demonstration that uses artificial intelligence to achieve grassroots governance and protect the safety of the people.
In November 2017, Alibaba Cloud City was selected as the country's first batch of next-generation artificial intelligence open innovation platforms, and was considered the first time in the world that artificial intelligence overlay open data platforms were used for urban governance. Wang Jian, chairman of the Alibaba Group Technical Committee, wrote in the People's Daily that urban brains bring breakthroughs in urban governance models, breakthroughs in urban service models, and breakthroughs in urban industry development.
The urban brain of Luzhou will help Cangzhou build a social governance infrastructure project supported by the “Snow Bright Project”, use artificial intelligence to build China’s safest cities, further advance the construction of an information-based, three-dimensional social public security prevention and control system, and mark social security and guard the people. Peace.
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