Region-selective fluoroscopic image compression

摘要

A method for displaying a sequence of fluoroscopic images of a subject defines, within the image area of a digital image receiver and in response to one or more viewer instructions, a region of interest and a background region that lies outside the defined region of interest. A succession of fluoroscopic images is obtained from the digital image receiver and, for image pixels within each of the succession of fluoroscopic images, background region pixel data are encoded and transmitted to the display apparatus using a lossy encoding. Region of interest pixel data is transmitted to the display apparatus using a lossless encoding. The succession of fluoroscopic images is displayed.

主权项

1. A method for displaying a sequence of fluoroscopic images of a patient, comprising:
defining, within the image area of a digital image receiver, in response to one or more viewer instructions, a region of interest and a background region disposed outside the defined region of interest; obtaining a succession of fluoroscopic images at a digital image receiver and, for image pixels within each of the succession of images:
(i) encoding and transmitting background region pixels to a display apparatus using a lossy encoding, with transmission at a first refresh rate, wherein more than one type of lossy encoding is used for the background region pixels, according to distance from the region of interest; and(ii) transmitting region of interest pixels to the display apparatus using a second encoding, with transmission at a second refresh rate that is higher than the first refresh rate; and displaying the succession of fluoroscopic images on the display apparatus.