Contrast optimization autofocus algorithm
Y Liu, L Jing - 电子与信息学报, 2003 - jeit.ac.cn
To focus a synthetic-aperture radar image which suffers from phase errors, an autofocus
algorithm, Contrast Optimization Autofocus Algorithm (COAA), is proposed. This algorithm is
based on the optimization of the contrast function, which represents a measure of the focus
degree of the image. The main steps of the COAA are described. Experimental results show
that this algorithm is very efficient. The COAA has many advantages. The relative
performances of COAA and another autofocus algorithm, MAPDRIFT autofocus algorithm …
algorithm, Contrast Optimization Autofocus Algorithm (COAA), is proposed. This algorithm is
based on the optimization of the contrast function, which represents a measure of the focus
degree of the image. The main steps of the COAA are described. Experimental results show
that this algorithm is very efficient. The COAA has many advantages. The relative
performances of COAA and another autofocus algorithm, MAPDRIFT autofocus algorithm …
