Multi-linear-array time difference scanning image radiation consistency correction method

The invention discloses a multi-linear-array time difference scanning image radiation consistency correction method, which can effectively correct a non-uniform phenomenon in a linear-array scanning image and can also eliminate the overall radiation difference of images between linear arrays. According to the scheme, the method has the following steps: carrying out time difference scanning by adopting more than one linear array, wherein each linear array is composed of N detection elements, and the structures of the linear arrays are consistent, wherein N is a positive integer; and selecting one of the line columns as a reference line column, and taking other line columns as to-be-corrected line columns; scanning by adopting the reference line column to obtain a reference line column image, and performing internal non-uniformity correction on the reference line column image; scanning by adopting the to-be-corrected linear array to obtain a to-be-corrected linear array image; enabling the detection elements in