Patent ID: 8472530

Claim:
A selective frame error concealment method for a moving picture frame, the method comprising the steps of: determining when an erroneous frame corresponds to one among a predetermined number of frames received after an I frame when the erroneous frame is received during reception of moving picture frames; determining if a number of consecutive erroneous frames is greater than a preset threshold value when the erroneous frame does not correspond to one among the predetermined number of frames received after the I frame; using an error concealment technique when the number of consecutive erroneous frames is equal to or less than the threshold value; and displaying a frame, which has been received without error before the erroneous frame, until receiving a new I frame, either when the erroneous frame corresponds to one among the predetermined number of frames received after the I frame, or when the number of consecutive erroneous frames is greater than the threshold value; wherein the threshold value is obtained by: Threshold = a / ∑ ∑ x , y m , n ⁢ ( abs ⁡ ( MVx ) + abs ⁡ ( MVy ) ) Number ⁢ ⁢ of ⁢ ⁢ MBs ⁢ , wherein “Threshold” represents the threshold value, “Number of MBs” represents the number of macro blocks existing in one frame, “MVx” represents a motion vector value in an X direction, “MVy” represents a motion vector value in a Y direction, and “a” represents a preset coefficient.