Visual detection method of multi-movement target positions in large view field

The invention discloses a visual detection method of multi-movement target positions in a large view field, which comprises the steps of design of a color mark plate, splicing of a double-camera view field, searching and positioning of a mobile target, conversion of an image coordinate system and a world coordinate system, and the like. The color mark plate is used for identifying the mobile target and determining target position data and designed to include an excircle-type color mark blocks with different colors and equal radius; the view field splicing method comprises the steps of shooting by using two cameras and splicing two scene images overlapped with each other in real time to acquire the large view field; the searching and the positioning of the mobile target comprises the steps of searching the mobile target based on a combined strategy of global grid searching and flight path searching and positioning the mobile target by means of seed point area growth; and finally the position and the posture of the mobile target in the world coordinate system are acquired by using a conversion model based on the image coordinate system and the world coordinate system which are relatively measured. The invention has the advantages of simple method, small calculated quantity, higher positioning accuracy and low application cost.