Target detector for human head detection

The invention relates to a target detector for human head detection, and the detector comprises an input layer which is used for inputting a to-be-detected image; the input end of the backbone network is connected with the output end of the input layer and is used for receiving an image to be detected and generating multi-scale features according to the image to be detected; the input end of the encoder is connected with the output end of the backbone network, and the encoder is used for receiving the multi-scale features and generating a multi-scale feature map according to the multi-scale features; the input end of the auxiliary detection head and the input end of the decoder detection head are both connected with the output end of the encoder; a multi-scale feature map output by an encoder is input into the auxiliary detection head and the decoder detection head for joint training during training; the output end of the auxiliary detection head is also connected with the input end of the decoder detection h