Book lookup method based on perspective transformation for video point reading machine

A technology of perspective transformation and video points, applied in the field of book search, can solve the problems of inconvenient book selection operation, increased book selection workload, cumbersome and time-consuming book selection operation, and achieve the effect of simple search method and automatic selection

Inactive Publication Date: 2010-08-11
NANCHANG HANGKONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large number of books contained in the point reading machine, the book selection list is manually scrolled to search one by one, which makes the book selection operation cumbersome and time-consuming, increases the workload of book selection, and brings inconvenience to the user's book selection operation.

Method used

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  • Book lookup method based on perspective transformation for video point reading machine
  • Book lookup method based on perspective transformation for video point reading machine
  • Book lookup method based on perspective transformation for video point reading machine

Examples

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Embodiment Construction

[0016] The method of the present invention requires a simple bracket to support an ordinary wide-angle camera so that it can shoot vertically. There is only a single book in the shooting scene, and the entire cover of the book can be completely included. At the same time, the book in the scene cannot be inverted or horizontal. The background in the scene is an ordinary arbitrary monochrome desktop. A gallery of reference book covers and their corresponding book titles and pronunciation information should be stored in the microprocessor.

[0017] The present invention adopts such as figure 1 The flow chart of the book search method based on perspective transformation for the video point reader is shown to realize the search work of the target cover in the point reader gallery, and its specific implementation steps are as follows:

[0018] 1. Target cover image acquisition

[0019] The camera with bracket is placed at a suitable position directly in front of the book to obtain...

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Abstract

The invention discloses a book lookup method based on perspective transformation for a video point reading machine, which includes the following steps: 1) collecting single frame of a book cover picture at real time through a video camera and inputting the picture to a microprocessor; 2) respectively picking up the book cover edge contours of a target cover and reference cover pictures in an picture gallery; 3) respectively picking up the characteristic points of the target cover and the reference covers in the picture gallery by using the edge contours of the book covers; 4) normalizing the gray scales of the target cover and the reference covers in the picture gallery; 5) conducting perspective matching to the target cover and the reference cover pictures in the picture gallery; 6) calculating to work out the similarity between the target cover and each reference cover picture in the picture gallery; and 7) realizing the book lookup method based on perspective transformation for the video point reading machine. The book lookup method has the advantages that the book lookup method based on perspective transformation is simple and practical and realizes automatic selection of the books in the point reading machine.

Description

technical field [0001] The invention relates to a book search method, in particular to a book search method based on perspective transformation for a video point reader. Background technique [0002] As a sound interactive learning product that perfectly combines modern digital information technology and the latest teaching needs, the point reader has quickly entered the domestic market and developed into one of the main learning tools for early childhood education in China. Various technical methods applied to improve the function of the point reader are also constantly updated and developed. [0003] The current popular point reader book selection function is realized by dynamic selection. The specific steps are: in the "function module" of the point reader, select the "book selection" button to enter the book selection list in the display screen. Scroll the book selection list to select the title information of the book you are looking for, and realize the book selection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06K9/60G09B5/06
Inventor 熊邦书陈乐平欧巧凤
Owner NANCHANG HANGKONG UNIVERSITY
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