DYNAMIC TRANSRATING BASED ON OPTICAL CHARACTER RECOGNITION ANALYSIS OF MULTIMEDIA CONTENT

• US 20100150449A1
• Filed: 02/17/2010
• Published: 06/17/2010
• Est. Priority Date: 09/28/2005
• Status: Abandoned Application

• Current Assignee: VIXS Systems Incorporated (Pixelworks Incorporated)
• Original Assignee: VIXS Systems Incorporated (Pixelworks Incorporated)
• Inventors: Laksono, Indra
• Application Number:
  US12/707,417
• Publication Number:
  US 20100150449A1
• Time in Patent Office: Days
• US Class Current: 382/190
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/440254 by altering signal-to-noise parameters, e.g. requantization
• CPC Class Codes: H04N 21/440263 by altering the spatial resolution, e.g. for displaying on a connected PDA
• CPC Class Codes: H04N 21/4621 Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen arrangements for using the results of monitoring on user's side in broadcast systems H04H60/65; flow control in packet networks H04L47/10

Abstract

Exemplary techniques for modifying multimedia data based on content are disclosed. One technique comprises determining whether a first portion of multimedia content of multimedia data has a first content characteristic and performing one or more content actions associated with the first content characteristic when the first portion of the multimedia content is determined to have the first content characteristic, wherein the one or more content actions modify a first portion of the multimedia data associated with the first portion of the multimedia content.

Claims

1. In a multimedia processing device, a method comprising:

performing an optical character recognition (OCR) analysis of video content of multimedia data for a specified textual characteristic, the multimedia data representing multimedia content for a program; and

modifying the multimedia data in response to determining the specified textual characteristic is present in the video content.

2. The method of claim 1, wherein the specified textual characteristic is a specified set of one or more text characters.

3. The method of claim 1, wherein the specified textual characteristic is a change in one or more displayed text characters in a specified region between successive frames.

4. The method of claim 3, wherein the program comprises a news program and the specified region comprises a stock ticker region.

5. The method of claim 3, wherein the program comprises a sports program and the specified region comprises a score region.

6. The method of claim 1, wherein modifying the multimedia data comprises changing an audio volume for a portion of the multimedia data that is associated with the specified textual characteristic.

7. The method of claim 1, wherein modifying the multimedia data comprises changing at least one of a bit rate or a resolution for a portion of the multimedia data that is associated with the specified textual characteristic.

8. The method of claim 1, wherein modifying the multimedia data comprises inserting an identifier into a portion of the multimedia data that is associated with the specified textual characteristic, the identifier identifying the portion of the multimedia data as being associated with the specified textual characteristic.

9. The method of claim 1, further comprising:

identifying a select template of a plurality of templates based on the program, wherein the select template comprises a rule specifying an OCR analysis for the specified textual characteristic; and

wherein performing the OCR analysis comprises performing the OCR analysis based on the select template.

10. The method of claim 9, wherein the select template is identified based on received electronic programming guide information associated with the program.

11. A multimedia processing device comprising:

a content analyzer to perform an optical character recognition (OCR) analysis of video content of multimedia data for a specified textual characteristic, the multimedia data representing multimedia content for a program; and

a transcoder to modify the multimedia data in response to determining the specified textual characteristic is present in the video content.

12. The multimedia processing device of claim 11, wherein the specified textual characteristic is a specified set of one or more text characters.

13. The multimedia processing device of claim 11, wherein the specified textual characteristic is a change in one or more displayed text characters in a specified region between successive frames.

14. The multimedia processing device of claim 13, wherein the program comprises a news program and the specified region comprises a stock ticker region.

15. The multimedia processing device of claim 13, wherein the program comprises a sports program and the specified region comprises a score region.

16. The multimedia processing device of claim 11, wherein the transcoder is to modify the multimedia data by changing at least one of a bit rate, a resolution, or an audio volume for a portion of the multimedia data that is associated with the specified textual characteristic.

17. The multimedia processing device of claim 11, further comprising:

a system layer formatter to insert an identifier into a portion of the multimedia data that is associated with the specified textual characteristic, the identifier identifying the portion of the multimedia data as being associated with the specified textual characteristic.

18. The multimedia processing device of claim 11, further comprising:

a rules table identifier module to identify a select template of a plurality of templates based on the program, wherein the select template comprises a rule specifying an OCR analysis for the specified textual characteristic; and

wherein the content analyzer performs the OCR analysis based on the select template.

19. In a multimedia processing device, a method comprising:

receiving multimedia data representing multimedia content for a program;

identifying a select template of a plurality of templates based on the program, wherein the select template comprises a plurality of rules, each rule comprising a characteristic and one or more actions to be performed by the multimedia processing device in association with the characteristic, wherein the plurality of rules includes a select rule comprising a characteristic representing a specified textual characteristic;

performing an optical character recognition (OCR) analysis of the multimedia data for the specified textual characteristic responsive to identifying the select rule in the select template.

20. The method of claim 19, further comprising

performing the one or more actions associated with the select rule when a portion of the multimedia data is determined to have the specified textual characteristic.