The invention provides a 3D target detection tracking method based on visual image and
radar tensor sparse proposal fusion, which comprises the following steps: firstly, carrying out generalization extraction on
color texture information of a visual image, and establishing multi-scale semantic high-dimensional features; secondly, extracting multi-
scale space high-dimensional features of a
radar tensor by using SCAN, respectively mapping a learnable sensing probe to
radar and visual high-dimensional feature spaces, and performing generalization sparseness on different
modal features by means of multi-head deformable attention to form radar and visual proposal features; sparse proposal fusion of radar and visual proposal features is carried out, and 3D target detection is completed; and finally, carrying out mixed multi-feature
cascade matching and batch track management on a detection result, and feeding back generated track
time sequence information to a front-end learnable sensing probe to realize an
active target detection and tracking integrated circulating progressive network based on
time sequence information guidance. According to the scheme of the invention, an integrated
active sensing framework of single-frame target detection and
time sequence target tracking is established, and the reliability of environment target sensing by a multi-source sensor in automatic driving is enhanced.