Neural network-based recognition of trade workers present on industrial sites

A system comprising one or more processors, one or more non-transitory digital storage media coupled to the processors and storing one or more sequences of program instructions which, when executed using the one or more processors, cause the one or more processors to perform:

• using a computing device, receiving a plurality of digital images depicting a particular worker;
• using the computing device, based on the plurality of digital images, determining a plurality of key-point sets of the digital images, each of the plurality of key-point sets comprising location information of key points identified within a depiction of the particular worker in a particular digital image;
• using the computing device, based on the plurality of key-point sets, determining a plurality of trade-specific activities that appear to be performed by the particular worker;
• using the computing device, based on the plurality of trade-specific activities, determining a plurality of trade probabilities, each trade probability among the trade probabilities indicating a likelihood that the particular worker belongs to a particular trade from among a plurality of trades.

One or more non-transitory digital storage media storing one or more sequences of program instructions which, when executed using one or more processors, cause the one or more processors to perform:

• using a computing device, receiving a plurality of digital images depicting a particular worker;
• using the computing device, based on the plurality of digital images, determining a plurality of key-point sets of the digital images, each of the plurality of key-point sets comprising location information of key points identified within a depiction of the particular worker in a particular digital image;
• using the computing device, based on the plurality of key-point sets, determining a plurality of trade-specific activities that appear to be performed by the particular worker;
• using the computing device, based on the plurality of trade-specific activities, determining a plurality of trade probabilities, each trade probability among the trade probabilities indicating a likelihood that the particular worker belongs to a particular trade from among a plurality of trades.