Method and Apparatus for Motion Projection Error Concealment in Block-Based Video

A method for concealing a current block in a lost picture of a video sequence, comprising:

• projecting positions of at least one block in a correctly received picture of the video sequence to a position of the current block in the lost picture using motion vectors of the at least one block in the correctly received picture so as to obtain a resultant projection;
• selecting one of the at least one block in the correctly received picture based upon an amount of overlap in the resultant projection;
• and
• concealing the current block in the lost picture using a motion vector of the selected one of the at least one block in the correctly received picture.

An apparatus for concealing a current block in a lost picture of a video sequence, comprising:

• means for projecting positions of at least one block in a correctly received picture of the video sequence to a position of the current block in the lost picture using motion vectors of the at least one block in the correctly received picture so as to obtain a resultant projection;
• means for selecting one of the at least one block in the correctly received picture based upon an amount of overlap in the resultant projection;
• and
• means for concealing the current block in the lost picture using a motion vector of the selected one of the at least one block in the correctly received picture.