公开(公告)号：US20180220023A1

公开(公告)日：2018-08-02

申请号：US15748581

申请日：2016-01-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, LP.

Inventor： Hai-Long Jacob Wang ,  Pan-Mi WU ,  Cheng LI ,  Yu-Mao ZHU

IPC: H04N1/00 ,  G06F3/12

CPC classification number: H04N1/00771 ,  G06F3/1207 ,  H04N1/00037 ,  H04N1/00045 ,  H04N1/00328 ,  H04N1/00488 ,  H04N1/0049 ,  H04N1/00689 ,  H04N1/00697

Abstract: A method for generating an alert to enable a user to retrieve a printed document from an image scanning device is described. Multiple portions of a digital image of a printed document obtained through the scan task, are identified. Thereafter, movement of a scan-head assembly of an image scanning device is controlled so as to position the scan-head assembly over a target area of the printed document. The scan-head assembly may be activated to capture a reference image and a series of verification images of the target area of the printed document. Thereafter, the reference image and each of the series of images are compared. Based on the comparison, an alert is generated, wherein the alert is to indicate that the printed document is to be retrieved from the scanning device.