360-degree video stream transmission system based on saliency detection

The invention discloses a 360-degree video stream transmission system based on significance detection, and the system comprises a server end which obtains a significance matrix according to eye movement data at an offline stage of the system and calculates the variance of each video, i.e., the average variance of the significance matrix, thereby enabling the videos to be divided into a significance video and a non-significance video; after acquisition and analysis of the significance matrix are completed, the video exists in different qualities and corresponding forms through fragmentation inthe time dimension and the space dimension; and a client which is used for downloading the corresponding saliency matrix from the server to the client player according to the actual network conditionwhen a user watches the saliency video, controlling the downloading and transmission of the video stream in the playing process based on the saliency code rate control algorithm, and adjusting the quality of the video stream t