Position and Size Detector for Digitized Image and Character
Original Publication Date: 1985-Jan-01
Included in the Prior Art Database: 2005-Feb-18
Disclosed is a position and size detector of digitized images and characters. The digitized video is serially shifted through a two-scan plus three-bit shift register. After the completion of the whole image scan, the upper, lower, left and right bounds are obtained by ignoring peripheral noises. Fig. 1 shows a block diagram of the position and size detector. The digitized image from an optical scanner is stored in image buffer 1. The stored image is serially shifted through a two-scan plus three-bit shift register 2. Fig. 2 shows the two-scan plus three-bit shift register. Fig. 3 shows the X-minimum, the X-maximum, the Y-minimum and the Y-maximum bounds of a character. Figs. 4A and 4B show masks for X and Y bound detection, respectively. If the bit pattern in a 3 x 3 bit window (D00 - D22) matches one of the masks in Fig.