Neural network, target detection method, neural network training method and related products

The embodiment of the invention discloses a neural network for target detection, a target detection method, a neural network training method and a related product. The neural network for target detection comprises a coding network and a decoding network, and the decoding network comprises a first decoding layer; the coding network is used for performing feature extraction on the to-be-detected image to obtain a plurality of first feature maps; the first decoding layer is used for performing attention processing on the target first feature map and the plurality of target reference vectors to obtain a plurality of first reference vectors; performing target detection on the plurality of first reference vectors to obtain a plurality of first candidate frames and a plurality of first categories; processing the feature map corresponding to each of the plurality of first candidate frames and each of the plurality of first reference vectors to obtain a plurality of second reference vectors; and obtaining a plurality