公开(公告)号：US4604963A

公开(公告)日：1986-08-12

申请号：US676832

申请日：1984-11-30

Applicant: James A. Kirkham

Inventor： James A. Kirkham

IPC: G01J1/12 ,  G01J3/52

CPC classification number: G01J1/12

Abstract: A hand held and hand operated apparatus for analysis of the relationship between numerical values and displayed greyscale of pixels making up an image matrix. The apparatus has a pair of relatively movable members that are located relative to each other to display a greyscale in comparison relationship to window and level scales used to provide rapid analysis of a greyscale distribution of a given image. The members comprise a first cylindrical member concentrically accommodating a cylindrical sleeve. The first member has viewing ports ruled with scales representing values of selected window and level. The sleeve has the greyscale which can be selectively longitudinally and rotatably positioned relative to a viewing port to provide analysis information concerning the greyscale distribution of an image, such as the image on an X-ray film or displayed on a CRT.

Abstract translation: 一种用于分析数值与构成图像矩阵的像素的显示灰度之间的关系的手持和手动装置。 该装置具有相对于彼此定位的一对相对可移动的构件，以便与用于提供给定图像的灰度分布的快速分析的窗口和水平刻度的比较关系显示灰度。 构件包括同心地容纳圆柱形套筒的第一圆柱形构件。 第一个成员具有用表示所选窗口和级别的值的标度的观察端口。 套筒具有可相对于观察口选择性地纵向和可旋转定位的灰度，以提供关于诸如X射线胶片上的图像或CRT上显示的图像的灰度分布的分析信息。