A Data Hiding Technique to Synchronously Embed Physiological Signals in H.264/AVC Encoded Video for Medicine Healthcare

Algorithm 1

Algorithm of our data hiding encoding technique.

Algorithm: Embed a sample.

Input: Data of the sample in bit-pairs according to (2).

Result: Embedded sample in a frame.

(1) for NewSample do

(2) curblock → current macroblock

(3) for MacroblockPartition do

(4)   switch Mapping do

(5)    case 00: Quarter-Pixel Search Position =

(6)    case 01: Quarter-Pixel Search Position =

(7)    case 10: Quarter-Pixel Search Position =

(8)    case 11: Quarter-Pixel Search Position =

(9)   end switch

(10)  end for → until complete all partitions of the current macroblock

(11) end for → until complete all samples