Hybrid Model to Detect Zero Quantized DCT Coefficients in H.264 Hanli Wang, Student Member, IEEE, and Sam Kwong, Senior Member, I-Hybrid Model to Detect Zero Quantized DCT Coefficients in H.264 Hanli Wang, Student Member, IEEE, and Sam Kwong,

Abstract- H.264/AVC is becoming a popular video codec for its better compression ratio, lower distortion and applicability to portable electronic devices. Thus, issues of copyright protection appropriate for this standard become very importan