Occlusion detection system and method based on discrimination model

The invention provides an occlusion detection system and method based on a discrimination model, and the method comprises the steps: S1, enabling an occlusion detector to generate background small blocks which are closely distributed at the periphery after a tracker outputs the position of a current frame target; S2, in the next frame, if the point in the target frame exists in the search range ofthe background small block, generating a candidate region with the same scale by taking the point as the center; S3, calculating the similarity between the candidate region and the small background block and the similarity between the candidate region and the corresponding region of the target template, if the similarity between the candidate region and the small background block is higher, shielding the candidate region, and otherwise, not shielding the candidate region; judging whether the similarity of the background small blocks is higher or not, and obtaining judgment result information;and S4, presetting a mask