Patent ID: 8531468
Filing Date: 2013-09-10
Classification: G06T,H04N

Abstract:
1. A memory controller of an image processing system, the memory controller configured to operate with a pixel processor and a context memory, the pixel processor is configured to read and write context values from and to the context memory, the memory controller comprising: a context initialization input configured to receive a context initialization signal from the pixel processor that is configured to determine whether a context of a target pixel of an image is valid and to process the target pixel using the context of the target pixel if the context is valid; and an output section configured to write values to the context memory associated with the context of the target pixel; wherein in response to receipt of the context initialization signal, the memory controller is configured to initialize memory locations of the context memory to an initialization state, wherein the context initialization signal is received at the context initialization input when the pixel processor determines that the one or more context values are not valid, wherein the initialization state corresponds to a context memory state that enables the pixel processor to begin encoding or decoding operations of a new image, and wherein the memory controller is configured to initialize the context memory at least partly simultaneously while the pixel processor performs other encoding or decoding operations.