画像解析装置 OA-1 の顕微鏡描画装置利用における精度の検討

概要

論文の詳細を見る
An OKUMA 'OA-1' is a system for the morphometric analysis, that has been devised using a microcomputer coupled to a digitizing pad, printer and CRT. This system and its peripherals comprise : (a) a NEC 'PC-8001' microcomputer with Z-80 CPU and 32K bytes RAM store ; (b) a 'BIT-PAD' digitizing pad having a sensitive area of 279×279mm and incorporating a hand-held push-button-operated cursor. The claimed accuracy of this pad is 0.1mm ; (c) a EPSON 'MP-80' printer ; (d) a NEC 'PC-8031' mini disk unit with 140K bytes users memory per a drive. The program is written in BASIC with a subroutine in machine language. Although this system required the use of the photomicrographs for the analysis, we modified this for the direct measuring in the microscopic view with a half-mirror drawing system and a LED marker on the cursor. To determine the accuracy of this system in our use, four operaters measured the area and perimeter of four drawings. In addition, an operator measured them by the hit-point method with 50 throws. Data from this microcomputer-based system in our use showed that the mean values were 1∿2% smaller than the net value, and the standard deviations were very small. This results indicated that this system was very useful in our use.
九州歯科学会の論文
1982-04-25