Patent ID: 8014445
Filing Date: 2011-09-06
Classification: H04N

Abstract:
1. A method for transmitting encoded video data, said method comprising: a) receiving a high dynamic range (HDR) image sequence; b) tone mapping a standard dynamic range (SDR) image sequence from said received HDR image sequence; c) encoding said mapped SDR image sequence with an SDR encoder; d) transmitting said encoded SDR image sequence to a recipient; e) decoding said encoded SDR image sequence; f) inverse tone mapping the decoded SDR image sequence to form decoded HDR sequence data; g) encoding said decoded SDR image sequence, said decoded HDR sequence data and said received HDR image sequence to form HDR residual data, said HDR residual data being the difference between said decoded HDR sequence data and said received HDR image sequence; and h) transmitting said HDR residual data to said recipient.