Image sensor module, image processing system, and image compression method
AssigneeSamsung Electronics Co., Ltd.
InventorsWonseok Lee, Yunseok Choi
Life of this patent
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Abstract
Provided are an image sensor module, an image processing device, and an image compression method. The image compression method includes receiving pixel values of a target pixel group to be compressed in the image data and reference values of reference pixels to be used for compression of the target pixel group, generating a virtual reference map by applying an offset value to each of the reference values, compressing the pixel values of the target pixel group based on the virtual reference map, and generating a bitstream based on a compression result and compression information based on the virtual reference map.
Claims20
An image compression method comprising:
- receiving pixel values of a target pixel group to be compressed in image data and reference values of reference pixels to be used for compression of the target pixel group;
- generating a virtual reference map by applying an offset value to each of the reference values;
- compressing the pixel values of the target pixel group based on the virtual reference map;
- and
- generating a bitstream based on a compression result and compression information based on the virtual reference map.
An image sensor module comprising:
- an image sensor configured to generate image data including a plurality of pixels;
- an encoder configured to generate compressed data including a plurality of bitstreams by sequentially compressing the image data generated by the image sensor in units of pixel groups and configured to compress a target pixel group to be compressed according to at least one encoding method among a plurality of encoding methods;
- and
- an interface configured to output the compressed data to an external image processing device,
- wherein the encoder generates a virtual reference map by applying an offset value to each of reference values of reference pixels arranged adjacent to a target pixel group according to a first encoding method among the plurality of encoding methods and compresses the target pixel group based on the virtual reference map.
An image processing system comprising:
- an image sensor configured to generate image data by sensing a received optical signal;
- an encoder configured to generate a plurality of bitstreams by sequentially compressing a plurality of pixel groups of the image data;
- and
- a decoder configured to reconstruct the image data by decompressing the plurality of bitstreams,
- wherein the encoder generates a virtual reference map by applying an offset value to each of reference values of reference pixels arranged adjacent to a target pixel group to be compressed and compresses the target pixel group based on the virtual reference map.
Dependencies are inferred from the claim text.