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US 8,797,424 B2Granted
Image processing apparatus for reading compressed data from memory via data bus and image processing method performed in the image processing apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsSang Do Oh, Jae Young Lee, Jung Hyun Lim, Hong Jun Choi
Life of this patent
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Abstract
An image processing apparatus including a memory, a data bus provided to access the memory, an image conversion unit which receives an image signal and converts the image signal into a frame comprising a plurality of lines, and an image compression/decompression unit which divides the frame into a plurality of line groups, compresses each of the plurality of line groups to generate compressed data, and stores the compressed data in the memory via the data bus, where at least one line in at least one line group is omitted from the compression.
Claims14
An image processing apparatus comprising:
- a memory;
- a data bus which provides access to the memory;
- an image conversion unit which receives an image signal and converts the image signal into a frame comprising a plurality of lines;
- and
- an image compression/decompression unit which divides the frame into a plurality of line groups, compresses each of the plurality of line groups to generate compressed data, and stores the compressed data in the memory via the data bus,
- wherein at least one line in at least one line group from the plurality of line groups is omitted from the compression by the image compression/decompression unit,
- wherein each of the plurality of line groups comprises one first line that maintains an original uncompressed state, and a plurality of second lines that are compressed at a predetermined compression rate by the image compression/decompression unit,
- wherein the first line is arranged before the second lines in the frame, and
- wherein the first line maintains the original uncompressed state regardless of the complexity of the first line.
6 more elements
An image processing method comprising:
- receiving an image signal;
- converting the image signal into a frame comprising a plurality of lines;
- classifying by a processor the plurality of lines of the frame into a plurality of line groups and compressing each of the plurality of line groups to generate compressed data;
- and
- storing the compressed data,
- wherein at least one line in at least one line group from the plurality of line groups is omitted from the compression,
- wherein each of the plurality of line groups comprises one first line that maintains an original uncompressed state, and a plurality of second lines that are compressed at a predetermined compression rate,
- wherein the first line is arranged before the second lines in the frame, and
- wherein the first line maintains the original uncompressed state regardless of the complexity of the first line.
6 more elements
An image processing method comprising:
- receiving a request to display partial data corresponding to a part of compressed data;
- determining a line group corresponding to the partial data from a plurality of line groups comprising a plurality of lines included in the compressed data;
- extracting the determined line group and decompressing the determined line group;
- and
- displaying the decompressed line group,
- wherein each of the plurality of line groups comprises one first line that maintains an original uncompressed state, and a plurality of second lines that are compressed at a predetermined compression rate,
- wherein the first line is arranged before the second lines in a frame corresponding to the compressed data, and
- wherein the first line maintains the original uncompressed state regardless of the complexity of the first line.
5 more elements
An image processing apparatus comprising:
- a memory that stores a frame of image data;
- and
- a processor which divides the frame into a plurality of groups and which compresses only a portion of pixels in each group,
- wherein the processor divides each of the groups into a plurality of lines and omits at least one line in each group from the compression,
- wherein the at least one line in said each group is maintained in an original uncompressed state,
- wherein the at least one line in each group from the compression is arranged before a remaining plurality of lines, and
- wherein the first line maintains the original uncompressed state regardless of the complexity of the first line.
4 more elements
An image processing method comprising:
- dividing a frame of image data into a plurality of groups;
- compressing only a portion of pixels in each group;
- and
- storing the compressed pixels,
- wherein one of the plurality of groups is divided into a plurality of lines such that at least one line in the one group is omitted from the compression and wherein the at least one line is maintained in an original uncompressed state,
- wherein the compressed portion of pixels in each group are decompressed based on the at least one line maintained in the original state,
- wherein the at least one line in the one group is arranged before a remaining plurality of lines, and
- wherein the first line maintains the original uncompressed state regardless of the complexity of the first line.
5 more elements
Dependencies are inferred from the claim text.