Video coding method and device, terminal equipment and storage medium

The invention discloses a video coding method and device, terminal equipment and a storage medium, and the method comprises the steps: carrying out the image coding, quantization and entropy coding through a video coding model which is trained with a machine intelligent task as a target in advance when a to-be-coded image belongs to intra-frame coding, and obtaining a binary code stream; when an image to be coded belongs to inter-frame coding, firstly carrying out motion estimation through a video coding model, then carrying out motion vector coding, quantization and entropy coding, carrying out motion vector decoding and motion compensation on a motion vector signal to be coded, and then obtaining a prediction residual error according to the image to be coded; obtaining a salient image according to the implicit vector and the motion vector implicit vector so as to filter a prediction residual error, then carrying out residual error coding, quantization and entropy coding to obtain a prediction residual error