Bit plane dithering apparatus
AssigneeTexas Instruments Incorporated
InventorsJeffrey Kempf, Aravind Lakshminarayanan, Jonathan Lucas
Life of this patent
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Abstract
A system, includes a controller configured to obtain, for an image frame stored in a frame memory image, data associated with a color component and generate dithered bit planes having a dither noise pattern, the dithered bit planes including time repeated bit plane sequences in the image frame. The system also includes a spatial light modulator (SLM) coupled to the controller. The SLM is configured to project an image of the image frame according to the dithered bit planes. Additionally, the system includes a light source optically coupled to the SLM. The light source is configured to provide light for projecting the image.
Claims20
A system, comprising:
- a controller including one or more processors and configured to:
- obtain, for an image frame stored in a frame memory, image data associated with a color component;
- and
- generate dithered bit planes having a dither noise pattern, the dithered bit planes including time repeated bit plane sequences in the image frame, in which the dither noise pattern is based on a dither noise level for the image data and the dither noise level is based on the image data;
- a spatial light modulator (SLM) coupled to the controller, the SLM configured to project an image of the image frame according to the dithered bit planes;
- and
- a light source optically coupled to the SLM, the light source configured to provide light for projecting the image.
A method comprising:
- obtaining, by a controller, for an image frame stored in a frame memory, image data associated with a color component;
- and
- generating, by the controller, dithered bit planes having a dither noise pattern, the dithered bit planes including time repeated bit plane sequences in the image frame, the generating including determining a dither noise level for the image data based on the image data and a transfer function, and determining the dither noise pattern based on the dither noise level;
- and
- transmitting, by the controller to a display device, the dithered bit planes.
A method comprising:
- obtaining, by a frame memory controller, image data from an image frame, the image data associated with a color component of the image frame;
- providing, by a dither noise mask generator, a dither noise mask according to a dither noise level for the image data;
- producing, by a dither percentage calculator, a dither noise level based on the image data;
- and
- producing, by a bit plane generator, dithered bit planes based on the dither noise mask and the dither noise level.
Dependencies are inferred from the claim text.