FLUOROSCOPIC DEVICE FOR OBJECT

摘要

PROBLEM TO BE SOLVED: To make it possible to see through and promptly observe an object by computing and converting projection data to hologram data. SOLUTION: An X-ray projection image is converted to visible light by an image intensifier 3 and is then picked up by a charge transfer device CCD camera 4. This image data is subjected to analog-to-digital conversion and is averaged by an image processing means 5, by which quantum noise is removed. Further, the projection image data is subjected to logarithmic conversion processing and the projection vector is obtd. as the projection data. Then, the projection hologram conversion matrix is stored in a memory 11 by a data conversion means 10. A hologram vector is calculated by a matrix-vector multiplication means 12. The hologram vector is inputted to a driving circuit of a wave front controllable device of liquid crystals or photoacoustic element or the like in a hologram expression control means 20. Illumination light is modulated by the wave front controllable device and the perspective image is reproduced in space.