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Multimedia resource acquisition method, apparatus and system

A multimedia resource and acquisition method technology, applied in the field of multimedia resource acquisition, can solve the problems of consuming CPU resources, reducing user experience, affecting system response speed, etc., and achieving the effects of reducing CPU load, improving user experience, and speeding up response speed.

Active Publication Date: 2009-03-11
TSINGHUA UNIV +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] At present, a very large number of high-dimensional vector points are stored in the database on the central server, and the number of vector points will change frequently with the update of multimedia resources (including addition / deletion / modification). Obviously, when the database When the number of vector points stored in each hash bucket is too large, the central server, at the request of the user, linearly queries the vector point closest to the query point proposed by the user in each hash bucket, which will consume a lot of CPU resources and seriously It affects the response speed of the entire system, which seriously reduces the user experience

Method used

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  • Multimedia resource acquisition method, apparatus and system
  • Multimedia resource acquisition method, apparatus and system
  • Multimedia resource acquisition method, apparatus and system

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Embodiment Construction

[0026] In order to improve the response speed of the system when providing multimedia resource query services, in the embodiment of the present invention, a distributed network structure is adopted, and the multimedia resources stored in the form of vector points after hash processing are uniformly stored by the first server. The server determines the query point specified by the user and the identifier of the hash bucket to which the query point belongs according to the request message sent by the user terminal, and sends the query point and the identifier of the hash bucket to which the query point belongs to the notification message to the second server , when the second server determines, according to the identifier carried in the notification message, that there is a hash bucket locally storing the identifier, obtain at least one of the hash buckets with the shortest distance from the query point in the hash bucket. vector points, and send the at least one vector point to ...

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Abstract

The invention discloses a multimedia resource obtaining method which comprises the steps: a multimedia resource saved in the form of vector points after hash process is stored by a first server uniformly; the first server determines a query point specified by a user and an identifier of a hashing bucket that the query point belongs to according to the request message transmitted by a client, and transmits a notification message carrying the identifier to a second server; and when determining the local existence of the hash bucket saved corresponding to the identifier according to the identifier carried in the notification message, the second server obtains at least one vector point nearest to the query point in the hash bucket and sends the at least one vector points to the client. In this way, operational pressure on the first server is released to a degree, thereby quickening the responding speed of a whole system in providing multimedia resource query service, and further improving user experience. The invention also discloses a communication device and a communication system simultaneously.

Description

technical field [0001] The present invention relates to the field of computers, in particular to a method, device and system for acquiring multimedia resources. Background technique [0002] With the popularity of multimedia resources (including audio resources, video resources, etc.) in Internet applications, how to quickly and accurately find the required multimedia resources in the massive network resources has become an urgent problem to be solved. [0003] At present, multimedia resources on the Internet are generally stored in a general method. The general method is: divide a multimedia resource into several key frames, and for each key frame, use the CBIR (Content Based Image Retrieval) method Extract several pieces of key information from key frames to obtain a vector point represented by a set of numbers, and a multimedia resource can be represented by a certain number of vector points obtained from several key frames through CBIR processing. Next, save the vector ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 尹浩惠雯张焕强黄东李铮陈文涛
Owner TSINGHUA UNIV
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