Image Signal Preprocessing Logic Circuit for Image Processing System
Original Publication Date: 1988-Aug-01
Included in the Prior Art Database: 2005-Feb-15
The industrial applications of image processing usually involve a first step of filming a desired object or scene with a video camera, followed by the four steps of sampling and thresholding the signals delivered by the camera, smoothing the resulting digitized image to remove therefrom any spurious elements which may have been introduced by the camera and/or the associated illumination system, extracting features from the (Image Omitted) smoothed image and, finally, recognizing the object or scene by comparison with a reference image. The performance of these steps - particularly those of image acquisition and smoothing - through software techniques is known to be time-consuming and to require a high processing power, because of the large number of computations that must be carried out.