Approximate target object detecting method and device

The present invention discloses a method and apparatus for detecting the object A proximity, the method comprising: acquiring an adjacent frame image of the current frame image and the current frame image from the imaging device; current frame image and a frame image is divided into adjacent several blocks of the same image, the image block of the current frame image and the frame image corresponding to a position adjacent the differentiated to obtain the current target frame image candidate block area; target candidate region for the feature point block detection and tracking, respectively, to obtain a set of feature quantity of light flow; flow quantity of the feature set of the light cluster, screened out from the candidate area block area closest object block from the clustering results; the screened object area communication block, to obtain close the current frame image object area. This application uses the frame image analysis block moving target detection, target proximity is not limited to the type, adapted to detect simultaneously rigid and non-rigid object target, calculation is simple, fast and accurate detection.