Filtering method, device and system suitable for target recognition data

The invention provides a filtering method, device and system suitable for target recognition data. The method comprises the following steps: obtaining initial target recognition data comprising at least one target, the initial target recognition data being a recognition result outputted after a target detection algorithm recognizes a monitoring video or image; collecting a specified area in the initial target recognition data, and adjusting a target in the specified area based on the type of the specified area to obtain first target recognition data; and inputting the first target recognition data into a confidence coefficient prediction model to obtain confidence coefficients of targets in the first target recognition data, and filtering the targets of which the confidence coefficients are lower than a set threshold value to obtain second target recognition data. According to the scheme, the target recognition data is screened and filtered in combination with a multi-dimensional filtering mechanism, and the