Low bit rate audio-visual communication system having integrated

Television – Special applications – Observation of or from a specific location

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

348 14, 382118, H04N 718

Patent

active

055006736

ABSTRACT:
Disclosed is a low bit rate audio and video communication system which employs an integrated encoding system that dynamically allocates available bits among the audio and video signals to be encoded based on the content of the audio and video information and the manner in which the audio and video information will be perceived by a viewer. A dynamic bit allocation and encoding process will evaluate the current content of the audio and video information and allocate the available bits among the audio and video signals to be encoded. In addition, an appropriate audio encoding technique is dynamically selected based on the current content of the audio signal. A face location detection subroutine will detect and model the location of faces in each video frame, in order that the facial regions may be more accurately encoded than other portions of the video frame. A lip motion detection subroutine will detect the location and movement of the lips of a person present in a video scene, in order to determine when a person is speaking and to encode the lip regions more accurately. The audio and video signals generated by a second party to a communication are monitored to determine if the second party is paying attention to the audio and video information transmitted by the first party to the communication.

REFERENCES:
patent: 4449189 (1984-05-01), Feix et al.
patent: 5012522 (1991-04-01), Lambert
patent: 5187574 (1993-02-01), Kosemura et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Low bit rate audio-visual communication system having integrated does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low bit rate audio-visual communication system having integrated, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low bit rate audio-visual communication system having integrated will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1961311

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.