Patent ID: 11962797
Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The method of claim 1, wherein deriving the refined MV comprises a fractional sample refinement, and the fractional sample refinement is simplified by removing comparison between sadMinus and sadCenter and comparison between sadPlus and sadCenter;
wherein sadMinus represents a value of E(−1,0) or E(0,−1), sadPlus represents a value of E(1,0) or E(0,1), and sadCenter represents a value of E(0,0), in solving a 2-D parabolic equation:

E(x,y)=A(x−xmin)2+B(y−ymin)2+C.