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Data compression method for shared PPT document pages

A PPT file and data compression technology, applied in the direction of digital video signal modification, two-way working system, electrical components, etc., can solve the problems that affect the real-time performance of network transmission, occupy network bandwidth, and the compression rate of Page data packets can only reach conventional compression, etc.

Inactive Publication Date: 2016-07-27
ZHEJIANG WANPENG EDUCATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that the information on the original PPT page can be preserved, but the disadvantage is that the compression rate of the Page data packet can only reach the level of conventional compression, occupying valuable network bandwidth and affecting the real-time performance of network transmission

Method used

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  • Data compression method for shared PPT document pages
  • Data compression method for shared PPT document pages
  • Data compression method for shared PPT document pages

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Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] Such as figure 1 Described, a kind of data compression method for sharing PPT document page, specifically comprises the following steps:

[0020] Step (1), set up 8 data sets, respectively T, V, I, A, BJ, PJ, PA, NJ;

[0021] Step (2), analyze PPT page data, text data T i Put it into the set T, i is the serial number of the text data, 1≤i≤m, m is the number of text data; vector graphics data V i Put it into the set V, i is the sequence number of vector graphics data, 1≤i≤n, n is the number of vector graphics data; picture data I i Put it into collection I, i is the serial number of the picture data, 1≤i≤u, u is the number of picture data; animation data A i Put it into collection A, i is the serial number of animation data, 1≤i≤v, v is the number of animation data;

[0022] Step (3), traversing the data set I, parsing the picture data I i The data header, get I...

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Abstract

The invention discloses a data compression method for shared PPT document pages. According to the method, combined data analyzed from PPTs is divided into data of all kinds such as text data, vector graphic data, image data and cartoon data. Different data sets are established for different kinds of data. Multiple pieces of different data of the sets are packaged into PPage data. The PPage data is generally compressed, thus obtaining CPage data. The CPage data is transmitted by a network. According to the method, the data analyzed from the PPT page is classified, the high compression rate of the page data is ensured, the method is beneficial for network transmission, the network bandwidth is saved, and those are very important to a network video conference and a remote education system with relatively high real-time interaction experience demands.

Description

technical field [0001] The invention belongs to the field of network video conferencing and computer graphic image processing, and relates to a data compression method for sharing PPT document pages. Background technique [0002] There are many ways for multiple people to share PPT documents. For example, you can send PPT documents directly to the other party as an email attachment. Multiple people are required to interact in real time. The application scenarios targeted by the present invention are mainly application scenarios such as network video conferencing and network distance education. It is a real-time document sharing for remote interaction of multiple people, and has high requirements for real-time data network transmission. [0003] In network video conferencing, there are generally the following ways to share PPT document pages: [0004] The first method is that the presenter converts the PPT page into a picture, and then broadcasts the picture data to the rem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/15H04N19/186H04L29/06
CPCH04L65/403H04N7/15H04N19/186H04L65/762H04L65/611
Inventor 刘鹏
Owner ZHEJIANG WANPENG EDUCATION TECH CO LTD