Online visual tracking method

The present invention relates to a visual-line tracking method, comprising the following steps: (1) initialization classifier: acquiring first frame image, the tracking target area to be marked; Haar features calculating the target area image block, initializing a first classifier; calculating a binary-coding target region feature image block, initialization of the second classifier; (2), adaptive tracking: support vector machine structured output, combined with the tracking of the particle filter, motion model; (3), recapturing goal: using a first classifier update training samples, using a second classifier after the establishment of the global grid, a global search. Visual-line tracking method provided by the invention, using two classifiers, a first classifier for adaptive tracking, a second classifier for recapturing lost with the target, the target to resolve each change in appearance and disappearance of the target to be re-captured transitory the question, without a lot of training before the tracking target.