Multi-target recognition model and construction method, device and application thereof

The invention provides a multi-target recognition model and a construction method, device and application thereof, and the method comprises the following steps: obtaining a training sample, sending the training sample into a multi-target detection model for training, the multi-target detection model is composed of a shared feature extraction module, a fusion feature extraction module and a recognition module, and the shared feature extraction module combines the fusion feature extraction module to perform coding fusion on the training sample to obtain a fusion result, and then inputs the fusion result and the last layer of coding feature map into the recognition module to obtain a to-be-detected vehicle image in the training sample. According to the scheme, end-to-end target prediction is realized by using relatively small time overhead, model parameter quantity and calculation overhead, and a data basis is provided for subsequent feature comparison, vehicle tracking and re-identification verification. 本方案提出了