|
主題: 人造衛星衛星影像校正 用 地面的靶 Eye Charts 作者: peter 於 2019-10-27 16:50:23 https://www.facebook.com/photo.php?fbid=2436895173245444&set=gm.2800983343245817&type=3&theater&ifg=1
衛星影像校正 Beale AFB, CA (https://scontent.ftpe7-4.fna.fbcdn.net/v/t1.0-9/76705243_2436895176578777_5169735624617361408_n.jpg?_nc_cat=107&_nc_oc=AQnfaepvhmvtSIg5hB6g-qY-VcFkds9T_rbg57pKjdFDnMegN4DjGo2NfJ3U45B-sqmHCWPmD9zDVFdMwLQSbR5J&_nc_ht=scontent.ftpe7-4.fna&oh=69846b2426dd6a7bdd362cee45b9ffbb&oe=5E506AD6) https://twistedsifter.com/2013/03/eye-charts-for-airplanes-calibration-targets/ https://petapixel.com/2013/02/15/there-are-giant-camera-resolution-test-charts-scattered-across-the-us/ (https://twistedsifter.files.wordpress.com/2013/03/eye-charts-for-airplanes-aerial-cameras-calibration-targets-13.jpg?w=618&h=800) (https://petapixel.com/assets/uploads/2013/02/giantresolutiontest-6.jpeg) (https://petapixel.com/assets/uploads/2013/02/giantresolutiontest-10.jpeg) https://99percentinvisible.org/article/solve-x-deciphering-calibration-marks-made-classified-spy-missions/ Snellen chart Snellen圖表是可用於測量視敏度的視力表。 Snellen圖表以荷蘭眼科醫生Herman Snellen的名字命名，Herman Snellen於1862年開發了該圖表。許多眼科醫生和視力科學家現在使用一種改進的圖表，稱為LogMAR圖 |