The video error detection is the basis of error concealment

which is studied in a typical application scene in this paper. At first

the error detection algorithm based on spatial feature is improved to adaptively adjust the decision threshold. Then

the feature of video temporal correlation is introduced

and a novel joint space-time video error detection algorithm based on prior restrictions with better applicability is proposed. Finally

the algorithm is simulated in 3G video communication environment

the results indicate that the proposed algorithm has a higher accuracy and provided a reliable basis for error concealment.