A VIDEO ENCODING SYSTEM WITH CINDITIONAL PICTURE-ELEMENT REPLENISHMENT

THIS PAPER DESCRIBED AN EXPERIMENTAL METHOD FOR ENCODING TELEVISION SIGNALS WHICH TAKES ADVANTAGE OF THE FRAME-TO-FRAME CORRELATION TO REDUCE TRANSMISSION BIT RATE. THE TECHNIQUE ENCODES ONLY THOSE ELEMENTS THAT CHANGE BETWEEN SUCCESSIVE FRAMES INSTEAD OF ENCODING EVERY ELEMENT OF EVERY FRAME. THE METHOD IS DEMONSTRATED IN REAL-TIME USING THE HEAD-AND-SHOULDER VIEW OF A PERSON IN ANIMATED CONVERSATION AS THE PICTURE SOURCE, SUCH AS IS LIKELY TO BE ENCOUNTERED IN A VISUAL COMMUNICATION SYSTEM. AN AVERAGE TRANSMISSION RATE OF ONE BIT PER PICTURE ELEMENT INDICATES QUALITY COMPARABLE WITH STANDARD EIGHT-BIT PCM TRANSMISSION. /AUTHOR/

• Supplemental Notes:
  • Vol 48, pp 2545-2554
• Authors:
  • Mounts, F W
• Publication Date: 1969-9

Media Info

• Serial:
  • Bell System Technical Journal

Subject/Index Terms

• TRT Terms: Coding systems; Pulse code modulation; Signals; Television
• Old TRIS Terms: Coding
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225728
• Record Type: Publication
• Source Agency: Traffic Systems Reviews & Abstracts
• Files: TRIS
• Created Date: Jun 15 1970 12:00AM