Title:
INTELLIGENT INTERNET HIGH-DEFINITION SCANNER WITH LASER CORRECTION
Document Type and Number:
WIPO Patent Application WO/2017/206222
Kind Code:
A1
Abstract:
An intelligent Internet high-definition scanner with laser correction, comprising: a scanning area (7) for placing a book to be scanned; a calibration laser emission unit (2) located above the scanning area (7), an image collection unit (3) and an image processing unit, wherein the calibration laser emission unit (2) emits a laser beam to the book unfolded and placed on the scanning area (7), so as to form a laser line strip on a surface of an opened book page; the image collection unit collects a planar image of a bent book page with the laser line strip; by establishing a three-dimensional coordinate system, and according to coordinates of pixel points of the laser line strip and an intersection angle between the laser beam and a plane of the scanning area (7), height coordinates of each of the pixel points on the laser line strip in the planar image in the three-dimensional coordinate system is obtained by means of calculation, a 3D curve of the laser line strip in the three-dimensional coordinate system is restored, and a real 3D curved surface of the book page in the three-dimensional coordinate system is constructed according to the 3D curve; and a correlation between points on the 3D curved surface and the pixel points in the planar image is obtained by means of calculation, the 3D curved surface with pixel values being replaced is straightened, and the scanning of a current book page is completed.
Inventors:
ZHOU KANG (CN)
Application Number:
PCT/CN2016/086860
Publication Date:
December 07, 2017
Filing Date:
June 23, 2016
Export Citation:
Assignee:
DALIAN CZUR TECH CO LTD (CN)
International Classes:
H04N1/04; H04N1/028; H04N1/10; H04N1/12
Foreign References:
| CN102447810A | 2012-05-09 | |||
| CN102170514A | 2011-08-31 | |||
| CN103595891A | 2014-02-19 | |||
| CN104954625A | 2015-09-30 | |||
| US5760925A | 1998-06-02 |
Other References:
See also references of EP 3468163A4
Attorney, Agent or Firm:
DALIAN EAST PATENT AGENT LTD. (CN)
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