Method and apparatus for transforming coordinate systems in an automated video monitor alignment system
Номер патента: CA2191608A1
Опубликовано: 21-12-1995
Автор(ы): Gregory A. Kern, James R. Webb
Принадлежит: Individual
Опубликовано: 21-12-1995
Автор(ы): Gregory A. Kern, James R. Webb
Принадлежит: Individual
Реферат: A system (10) for transforming coordinate systems in an automated video monitor alignment system includes a camera (20) and computer (22) to capture an image of the display bezel (16) surrounding the cathode ray tube and of the image displayed on the CRT (12). Three dimensional models of the CRT tube and display bezel are used to compute and compensate for camera perspective. Camera pixel data can then be transformed to "flat plane" coordinates. When the relative orientation of the camera (20) and CRT (12) are corrected for, the effects of parallax can be eliminated, allowing more accurate inspection, measurement, and lower cost fixturing on the production line. Thus, an accurate coordinate transformation from a camera-referenced coordinate system to a monitor-referenced coordinate system is made.
Image processing apparatus, image processing method, and image pickup apparatus for displaying image for use in focusing operation
Номер патента: US20210358090A1. Автор: Hiroshi Nakaoka. Владелец: Canon Inc. Дата публикации: 2021-11-18.