Patent ID: 9137531
Filing Date: 2015-09-15
Classification: H04N

Abstract:
1. A scanning method comprising: receiving a quantized transformed coefficient of a current block; obtaining a first prediction direction of the current block; determining a first scanning order using a mapping relationship table, wherein the mapping relationship table comprises the first prediction direction, a second prediction direction, a third prediction direction, a fourth prediction direction, the first scanning order, and a second scanning order, wherein the mapping relationship table indicates that the first scanning order is to be used with the first prediction direction and the second prediction direction, wherein the mapping relationship table indicates that the second scanning order is to be used with the third prediction direction and the fourth prediction direction, wherein the first prediction direction, the second prediction direction, the third prediction direction, and the fourth prediction direction are all different from one another, and wherein the first scanning order is different from the second scanning order, wherein the first scanning order comprises a performing scanning processing on the coefficient using the first scanning order corresponding to the first prediction direction of the current block.