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Intelligent internet high-definition scanner with laser correcting function

An Internet and scanner technology, applied in the field of intelligent Internet high-definition scanners, can solve problems such as the impact of OCR text recognition and the impact on reading quality

Active Publication Date: 2016-08-17
DALIAN CHENGZHE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when this type of image acquisition scanner scans objects with a certain thickness, such as dictionaries and textbooks with a large thickness, the scanned image of the pages in the middle of the book will produce a huge curvature, which seriously affects the reading quality. And the bending will also have a serious impact on the subsequent OCR text recognition

Method used

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  • Intelligent internet high-definition scanner with laser correcting function
  • Intelligent internet high-definition scanner with laser correcting function
  • Intelligent internet high-definition scanner with laser correcting function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Example 1, such as Figure 7-9 As shown: the scanner mainly consists of an L-shaped bracket 1 and a counterweight base 5, and three laser emitting components 2 are arranged at the corners of the L-shaped bracket 1. A camera 3 is arranged at the front end of the transverse arm of the L-shaped bracket 1, and an led fill light 4 is arranged at a position behind the camera. In order to facilitate real-time monitoring by the user, especially off-line (not suitable for external display) monitoring of the scanning process, a display screen 6 is provided on the upper surface of the front end of the L-shaped bracket 1 to facilitate monitoring of the current scanning state at any time. Adjustment buttons are arranged on the surface of the counterweight base 5 .

Embodiment 2

[0062] Example 2, such as Figure 10-11 As shown, similar to Embodiment 1, the difference is that there is a demarcated scanning area 7. In Embodiment 1, the virtual scanning area set by the camera 3 or the system is the same in size, area and position as the scanning area 7.

[0063] Scanning area 7 comprises two supporting plates 71 that are arranged oppositely. This supporting plate can adjust the elevation angle and move left and right to ensure that the books can be spread out under the action of their own weight. Line) is always located directly below the focal point of the camera 3, so that the algorithm can obtain two plane images of the book pages respectively.

[0064] Also be provided with controller 8, can adopt the mode of wireless or wired connection to be connected (communication) with system host computer, convenient user controls the rhythm of camera 3 taking pictures.

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Abstract

The invention discloses an intelligent internet high-definition scanner with a laser correcting function. The intelligent internet high-definition scanner comprises a scanning area for containing a book to be scanned and a calibration laser emitting unit, an image collecting unit and an image processing unit which are located above the scanning area; the calibration laser emitting unit emits a laser beam to the book placed on the scanning area in a spread mode, and laser lines are formed in the surface of an opened book page; the image collecting unit collects a plane image of the bent book page with the laser lines; by establishing a three-dimensional coordinate system, according to coordinates of pixel points of the laser lines and an intersection angle of the laser beam and the scanning area plane, height coordinates of all the pixel points on the laser lines in the plane image in the three-dimensional coordinate system are calculated, a 3D curve of the laser lines in the three-dimensional coordinate system is restored, and a real 3D curved face of the book page in the three-dimensional coordinate system is constructed according to the 3D curve; a corresponding relation of points on the 3D curved face and the pixel points in the plane image is obtained through calculation, the 3D curved face of which pixel values are replaced is straightened, and scanning of the current book page is completed.

Description

technical field [0001] The invention relates to an intelligent Internet high-definition scanner with laser correction. Involves patent classification number H04 electric communication technology H04N image communication, such as scanning, transmission or reproduction of TV H04N1 / 00 documents or similar, such as facsimile transmission; its parts H04N1 / 04 scanning device H04N1 / 10 application plane image support surface. Background technique [0002] With the development of video capture and processing technology, scanners have been upgraded from traditional photosensitive scanners to a new generation of image capture scanners mainly based on video image capture. This new type of scanner captures photos of book pages through a camera located above the scanned object Scanning can be completed, eliminating the heavy workload caused by the traditional scanning method of manually pressing the printed matter to be scanned on the scanning surface, and has the great advantage of fast ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/028H04N1/04H04N1/10H04N1/12
CPCH04N1/0282H04N1/04H04N1/10H04N1/1265H04N1/028H04N1/12H04N1/00328H04N1/00801H04N1/00827
Inventor 周康
Owner DALIAN CHENGZHE TECH
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