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Method and apparatus for automatically generating a playlist by segmental feature comparison

A playlist, automatically generated technology for special data processing applications, use of detectable carrier information, instruments, etc.

Inactive Publication Date: 2008-10-01
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these known systems do not retrieve all content items that would be considered similar to the seed content item by the user

Method used

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  • Method and apparatus for automatically generating a playlist by segmental feature comparison
  • Method and apparatus for automatically generating a playlist by segmental feature comparison
  • Method and apparatus for automatically generating a playlist by segmental feature comparison

Examples

Experimental program
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Embodiment Construction

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0016] For the purpose of describing these embodiments, only the extraction of feature vectors for the audio content of a content item will be described. However, it will be appreciated that the method may be applicable to the extraction of features for the remainder of the content item. A content item may include a file of analog or digital multimedia content, music tracks, songs, and the like.

[0017] The method according to the first embodiment will now start with figure 1 Explained as a reference. Incoming audio x is first split into frames x of arbitrarily chosen length m , step 101. The length of the frames may have the same predetermined length or may vary randomly. For each audio segment (or frame) x m , feature vectors are extracted using known techniques, step 103, and stored in a feature database, step 105.

[0018] Let M≧1 be the number of segments in the candidate content item (song), and K≧1 be the...

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PUM

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Abstract

A playlist of content items, e.g. songs, is automatically generated in which content items having features similar to features of a seed content item are selected. At least one feature of the seed content item is compared with at least one feature of each candidate content item to identify specific ones of the candidate content items that are similar to the seed content item. The identified candidate content items are then added to the playlist. Multiple features represent (e.g. are extracted from) different parts of a plurality of candidate content items and / or multiple features of the seed content item represent (e.g. are extracted from) different parts of the seed content item. The multiple features of the seed content item and / or of the candidate content items are compared with at least one feature of the seed content item or of the candidate content items.

Description

field of invention [0001] The present invention relates to methods and devices for automatically generating playlists of content items such as songs. In particular, it relates to automatic playlist generation of content items similar to a seed content item. Background of the invention [0002] Multimedia consumer devices are expanding in processing power and are able to provide users with more advanced multimedia content browsing, navigation and retrieval features. It is anticipated that, due to increases in storage capacity and connection bandwidth, consumers will have access to vast databases of content items. Therefore, there is an increasing need to provide efficient browsing, navigation and retrieval systems for assisting users. [0003] There are many known systems for the retrieval of content items and for the automatic generation of playlists. Some of these systems function to select content items from a large database based on their similarity to a certain seed (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/10G06F17/30G10L19/00G10L25/51G10L25/54
CPCG06F17/30758G06F17/30743G06F17/30749G06F17/30772G11B27/28G06F16/68G06F16/639G06F16/634G06F16/683
Inventor J·F·阿普里A·N·勒马
Owner KONINK PHILIPS ELECTRONICS NV