Patent ID: 11924455
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The method of claim 1, wherein the method further comprises:
determining the coordinate information of the last significant coefficient as a horizontal distance and a vertical distance from the position of the last significant coefficient to a lower-right corner of the current block, when the last-significant-coefficient position-reverse flag indicates that the position of the last significant coefficient is reversed for the current block; and
correspondingly, determining the position of the last significant coefficient by calculation with the coordinate information of the last significant coefficient comprises:
determining a width and a height of the current block;
obtaining a horizontal coordinate of the last significant coefficient by subtracting, from the width of the current block, the horizontal distance from the position of the last significant coefficient to the lower-right corner of the current block;
obtaining a vertical coordinate of the last significant coefficient by subtracting, from the height of the current block, the vertical distance from the position of the last significant coefficient to the lower-right corner of the current block; and
determining the position of the last significant coefficient according to the horizontal coordinate of the last significant coefficient and the vertical coordinate of the last significant coefficient.