Method for carrying out target detection on line graph

The invention relates to the technical field of line graph target detection, in particular to a method for carrying out target detection on a line graph, which comprises the following steps of: 1, marking the line graph; 2, judging the position information of the candidate point, and obtaining two real points closest to the candidate point left and right; 3, judging whether the candidate points are on the curve or not; firstly calculating an equation of a connecting line of two real points, and then judging the distance from a candidate point to the straight line and a threshold value; and 4, screening out candidate points which can be used for training through the steps, generating a frame with a fixed size by taking the positions of the candidate points and the real points as anchor points, and carrying out regression training on the frame. According to the method, a new marking mode is provided for the line graph, and target detection is performed by applying a new judgment mode on the basis of the marking