However, the effective operation of current security systems faces significant challenges, primarily due to the contradiction between the massive amounts of video surveillance data generated daily and limited manual analysis capabilities. According to data released by Bosdata, as of 2016, China’s front-end camera shipments reached 43.38 million units, and are projected to reach 54.22 million units by 2020, as shown in Figure 4-3. used vending machines for sale vending factory used vending machines for sale vending company used vending machines for sale vending manufacturer used vending machines for sale vendingThis means that China’s daily video surveillance recordings reach thousands of petabytes (PB), with even more historical data accumulated over the years, and more than 99% of this massive amount of video surveillance data is unstructured. Using a “human wave” approach for video retrieval and analysis not only consumes a large amount of manpower but is also ineffective.used vending machines for sale vending factory used vending machines for sale vending company used vending machines for sale vending manufacturer used vending machines for sale vending An experiment by IMS Research showed that after just 22 minutes of staring at a video screen, the human eye becomes unaware of more than 95% of the activity information in the video. Faced with these problems, optimizing and upgrading video surveillance systems has become a rigid requirement in the security field.used vending machines for sale vending factory used vending machines for sale vending company used vending machines for sale vending manufacturer used vending machines for sale vending