Efficient Parallel Video Processing Techniques on GPU: From Framework to Implementation

Table 1

Characteristics of five stages.

Stages	Dependence level	Dependence granularity	Maximal parallel degree
Prediction	Strong	One 4×4 block	16
DCT	Weak strong	One column or row of 4×4 block	64
Quantization	None	One pixel	256
I_quantization	None	One pixel	256
IDCT	Weak strong	One column or row of 4×4 block	64