Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for converting analog image of microfilm digital reader to digital image

A microfilm and digital image technology, applied in the field of digital readers, can solve the problems of image display distortion, image display quantization noise, etc., and achieve the effect of clear image quality

Active Publication Date: 2017-05-10
NAT LIBRARY OF CHINA
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the display of the existing microfilm digital reader is a digital display, so it is necessary to convert the analog image into a digital image for display. At present, the method for converting the image display format is basically to first convert the analog image signal. / D conversion, converting the analog image signal into a digital image signal, and then storing the digital image signal, using digital processing technology to add and subtract points to the image signal, and to add or subtract lines to the frame image signal, The above processing method has the following disadvantages: the converted image display will be distorted, or the image display will produce quantization noise, etc.

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
  • Method for converting analog image of microfilm digital reader to digital image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 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 of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0023] Such as figure 1 As shown, the conversion method from the analog image to the digital image of the microfilm digital reader described in the embodiment of the present invention comprises the following steps:

[0024] S1: Connect the USB interface of the reader to the PC end of the computer;

[0025] S2: The computer PC side detects whether the USB interface of the reader is connected to the computer PC side, if not, the computer PC side displays an error message, if yes, then moves ...

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 method for converting an analog image of a microfilm digital reader to a digital image. The method comprises the steps that a USB interface of the reader is connected to a PC terminal; software of the reader starts an image collection thread, a request is made to a USB collection camera for reading a data packet, and the data packet is transmitted to the PC terminal; the PC terminal judges whether the data packet read by the USB collection camera is obtained, and the software of the reader judges whether collection is interrupted; if not, the reader stores the image; if yes, the software of the reader encodes image data after starting a display thread, and one frame of the image is displayed; the software of the reader starts the image collection thread again, and the steps are repeated. The image obtained after conversion through the image conversion method is clear in image quality and will not distort; besides, quantized noise will not turn up during display of the converted image.

Description

technical field [0001] The invention relates to the technical field of digital readers, in particular to a conversion method from an analog image to a digital image of a microfilm digital reader. Background technique [0002] At present, the display of the existing microfilm digital reader is a digital display, so it is necessary to convert the analog image into a digital image for display. At present, the method for converting the image display format is basically to first convert the analog image signal. / D conversion, converting the analog image signal into a digital image signal, and then storing the digital image signal, using digital processing technology to add and subtract points to the image signal, and to add or subtract lines to the frame image signal, The above-mentioned processing method has the following disadvantages: the converted image display will be distorted, or the image display will generate quantization noise and the like. Contents of the invention ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00G06T9/00
CPCG06T1/00G06T9/00
Inventor 李晓明张阳曹宁王钧李进樊亚宁彭宇翔
Owner NAT LIBRARY OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com