Scanning and recognizing device and method based on triaxial accelerometer

A three-axis acceleration and recognition device technology, applied in the field of image processing, can solve the problems of occupying hardware resources, reducing the splicing speed of image frame sequences, etc., and achieve the effects of reducing load, avoiding down-sampling failure, and improving splicing speed

Active Publication Date: 2012-03-28
HANVON CORP
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the current image frame and one or more image frames before the previous frame also have a certain overlapping content, especially for larger images, in the process of registering and sp

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Scanning and recognizing device and method based on triaxial accelerometer
  • Scanning and recognizing device and method based on triaxial accelerometer
  • Scanning and recognizing device and method based on triaxial accelerometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0041] The invention discloses a scanning recognition device based on a three-axis accelerometer, such as figure 1 , figure 2 As shown, it includes the following components: a housing 1 for packaging and fixing device components, a control module 2 for image processing and character recognition, a circuit board 3 for integrating components, and a battery 4 for powering each component of the device , an optical sensor 5 for continuously shooting the scanned charac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a scanning and recognizing device and a scanning and recognizing method based on a triaxial accelerometer and relates to the field of image processing. The device comprises an optical sensor, the triaxial accelerometer and a control module, wherein the optical sensor is used for continuously shooting a scanned character to acquire an image frame sequence comprising the scanned character; the triaxial accelerometer is used for measuring a relative displacement among image frames in the image frame sequence; and a control module is used for performing down-sampling on the image frame sequence according to the relative displacement measured by the triaxial accelerometer, splicing acquired sampling frames, performing character recognition on a spliced panoramic image and thus obtaining a character code of the scanned character. In the device and the method, a large amount of calculation among the image frames, particularly large-size image frames, is avoided by measuring the displacement between the adjacent image frames through the triaxial accelerator, performing accurate down-sampling on the image frame sequence according to the displacement and searching from a given window to calculate spliced information of images of the adjacent sampling frames; therefore, load of the control module is reduced greatly, the splicing speed is increased and the high-precision alignment is realized.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a scanning recognition device and method based on a three-axis accelerometer. Background technique [0002] Electronic scanning pen (referred to as scanning pen) is one of the important applications of OCR. The optical camera of the scanning pen continuously takes pictures of the scanned data according to a certain frequency, obtains the image frame sequence of the scanned data, and then stitches the image frame sequence into a panoramic image for OCR processing. [0003] When the user uses the scanning pen to scan, the scanning speed changes. A typical usage method is that when the scanning is just started, the scanning speed of the scanning pen increases gradually from zero, then reaches a speed peak, and then the speed gradually increases. Decrease until the end of the scan. In the case of ensuring that there is a certain amount of overlapping content between adjacent image fr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06K9/20
Inventor 李永彬
Owner HANVON CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap