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US 2023/0412814 A1Published application
Recursive image compression
OwnerJeffrey KEMPF, Jonathan LUCASinventors
Life of this patent
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Abstract
A system includes a controller configured to: obtain palette keys for an image; and for each of a plurality of sub-blocks of the image, obtain a compressed set of palette keys responsive to gradient analysis and entropy analysis. The system also includes a spatial light modulator coupled to the controller and configured to project an image responsive to the palette keys and the compressed set of palette keys.
Claims20
A system comprising:
- a controller configured to:
- obtain palette keys for an image;
- and
- for each of a plurality of sub-blocks of the image, obtain a compressed set of palette keys responsive to gradient analysis and entropy analysis;
- and
- a spatial light modulator coupled to the controller and configured to project an image based on the palette keys and the compressed set of palette keys.
3 more elements
A controller comprising:
- a processor;
- and
- memory coupled to or included with the processor, the memory storing compression instructions that, when executed, cause the processor to:
- obtain an image;
- perform parent-child cluster compression on initial pixel colors of the image to obtain palette keys;
- for each of a plurality of sub-blocks of the image, obtain a compressed set of palette keys responsive to gradient analysis and entropy analysis;
- and
- output a compressed image based on the palette keys and the compressed set of palette keys.
5 more elements
A method comprising:
- obtaining, by a controller, an image;
- performing, by the controller, a first compression on initial pixel colors of the image to obtain palette keys;
- for each of a plurality of sub-blocks of the image, performing a second compression to obtain a compressed set of palette keys, the first compression and the second compression having different compression ratios;
- and
- outputting, by the controller, a compressed image based on the palette keys and the compressed set of palette keys.
2 more elements
Dependencies are inferred from the claim text.