Apparatus and method for identifying the location of a coding unit
AssigneesSarnoff Corporation, Sharp K. K.
InventorBing-Bing Chai
Life of this patent
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Abstract
An apparatus and a method for identifying the spatial location of a coding unit, e.g., a texture unit (TU), in a hierarchically decomposed image. Specifically, the invention quickly computes and identifies the “starting point” of a texture unit, by using the texture unit number and the width and height of the “DC” band.
Claims19
A method for identifying and mapping a location of a current texture unit for a hierarchically decomposed input image having a plurality of decomposition levels, where each decomposition level has a plurality of subbands, said method comprising the steps of:
- a) obtaining a texture unit number for the current texture unit;
- b) identifying a color component in accordance with said texture unit number for said current texture unit if the input image is a color input image;
- and
- c) determining the location of the current texture unit in accordance with the width and height of a DC subband of the input image and said texture unit number.
An apparatus for identifying and mapping a location of a current texture unit for a hierarchically decomposed input image having a plurality of decomposition levels, where each decomposition level has a plurality of subbands, said apparatus comprising:
- means for obtaining a texture unit number for the current texture unit;
- first means for identifying a color component in accordance with said texture unit number for said current texture unit if the input image is a color input image;
- and
- means for determining the location of the current texture unit in accordance with the width and height of a DC subband of the input image and said texture unit number.
A computer-readable medium having stored thereon a plurality of instructions, the plurality of instructions including instructions which, when executed by a processor, cause the processor to perform the steps comprising of:
- a) obtaining a texture unit number for the current texture unit;
- b) identifying a color component in accordance with said texture unit number for said current texture unit if the input image is a color input image;
- and
- c) determining the location of the current texture unit in accordance with the width and height of a DC subband of the input image and said texture unit number.
Dependencies are inferred from the claim text.