A study of the assessment metric based on catalogs for radio interferometric imaging
To meet the urgent demand for assessing the imaging quality of the next generation of radio interferometry telescopes,this study,based on simulation data,explores quality assessment metrics for radio interferometric imaging by comparing the catalogs obtained from source finding on imaging re-sults with the known reference catalog used in simulation.Unlike the common practice of cross-matc-hing two catalogs and comparing the accuracy of matched sources'attributes such as position and flux density,the study proposes using the Earth Mover's Distance(EMD)to quantify the difference be-tween two sets or distributions of elements as a more robust numerical metric for assessing the quality of imaging.This research provides an important foundation for the development of more robust evalua-tion metrics for radio interferometric imaging,contributing to the production of higher quality scientific data by radio interferometry telescopes.
radio interferometric imagingSquare Kilometre Array telescopecatalog
NETL
NSTL
万方数据
