FULL FIELD SHARPNESS TEST FOR OBJECTIVELY EVALUATING PERFORMANCE OF A DEVICE BY USING A TEST CHART

摘要

PURPOSE: A full field sharpness test is provided to accurately determine image quality and analysis metrics based on the full field sharpness test.;CONSTITUTION: Sharpness performance of an imaging system is evaluated by using a test chart(10). The test chart includes a sharpness check area. The sharpness check area is formed with a plurality of the same visual elements(11). The same visual elements form a mosaic. The same visual elements are a plurality of groups(12-18) of differently oriented contrasting lines.;COPYRIGHT KIPO 2013;[Reference numerals] (10) Chart; (11) Visual element; (16,18,14,12) Group; (20) Block; (26,24,22,28) Edge;