Apparatus and method for correction of distortion in digital image data

An apparatus for correcting for distortion in distorted digital data for a distorted image to produce corrected digital data for a corrected image, comprising:

• an image signal processor having
• an encoder for separately encoding each of a plurality of distorted data blocks of partitioned distorted digital data into a respective encoded distorted data block, the encoded distorted data blocks being encoded in a lossy or lossless data compression and having indices for storing in an input bitstream memory according to an index and without further operation thereon;
• a processor configured for
• (A) defining a plurality of distorted regions of the distorted image, such that each distorted region is associated with at least one respective corrected data block of the corrected digital data,
• (B) for each of a first and second corrected data block, the processor identifying a respective first and second plurality of associated encoded distorted data blocks associated with the first and second corrected data blocks;
• and
• a decoder for decoding
• the first plurality of associated encoded distorted data blocks into a first set of associated decoded distorted data blocks, and
• the second plurality of associated encoded distorted data blocks into a second set of associated decoded distorted data blocks;
• wherein the processor is further configured to
• generate corrected image data for the first corrected data block using the first set of associated decoded distorted data blocks, and
• generate corrected image data for the second corrected data block using the second set of associated decoded distorted data blocks and at least a portion of the first set of associated decoded distorted data blocks such that at least two corrected data blocks are associated with at least one common associated encoded distorted data block, and
• wherein the decoder decodes the second set of associated decoded distorted data blocks after the corrected image data for the first corrected data block is generated.

An apparatus, comprising:

• an image sensor;
• and
• an image signal processor, comprising:
• a first encoder configured only for encoding and indexing a real-time distorted image from the image sensor into locatable encoded and indexed blocks of the distorted image;
• an input bitstream memory for storing the locatable encoded and indexed blocks of the distorted image;
• a decoder for decoding
• a first set of associated encoded and indexed blocks of the locatable encoded and indexed blocks of the distorted image into a first set of decoded blocks of the distorted image, the first set of associated encoded and indexed blocks being associated to a first block of a corrected image, and
• a second set of associated encoded and indexed blocks of the locatable encoded and indexed blocks of distorted image into a second set of decoded blocks of the distorted image, the second set of associated encoded and indexed blocks being associated to a second block of the corrected image;
• a local memory for storing the sets of decoded blocks of the distorted image;
• a processor configured for
• correcting the first block of the corrected image using the first set of decoded blocks of the distorted image, wherein the first set of decoded blocks of the distorted image remain stored within the local memory, and
• correcting the second block of the corrected image, after the first block, using the second set of decoded blocks of the distorted image and at least a portion of the first set of decoded blocks of the distorted image,
• wherein the second set of decoded blocks is stored in the local memory after the processor corrects the first block of the corrected image;
• a second encoder for encoding the corrected blocks of the corrected image;
• and
• an output bitstream memory for storing the encoded corrected blocks of the corrected image.

An image signal processor, comprising:

• a first encoder configured only for encoding and indexing a real-time distorted image input into locatable encoded and indexed blocks of the distorted image;
• an input bitstream memory for storing the locatable encoded and indexed blocks of the distorted image;
• a decoder for decoding
• a first set of associated encoded and indexed blocks of the locatable encoded and indexed blocks of the distorted image into a first set of decoded blocks of the distorted image, the first set of associated encoded and indexed blocks being associated to a first block of the corrected image, and
• a second set of associated encoded and indexed blocks of the locatable encoded and indexed blocks of distorted image into a second set of decoded blocks of the distorted image, the second set of associated encoded and indexed blocks being associated to a second block of the corrected image;
• a local memory for storing the sets of decoded blocks of the distorted image;
• a processor configured for
• correcting the first block of the corrected image using the first set of decoded blocks of the distorted image, wherein the first set of decoded blocks of the distorted image remain stored within the local memory, and
• correcting the second block of the corrected image, after the first block, using the second set of decoded blocks of the distorted image and at least a portion of the first set of decoded blocks of the distorted image;
• a second encoder for encoding the corrected block of the corrected image;
• and
• an output bitstream memory for storing the encoded corrected block of the corrected image
• wherein the second set of decoded blocks are stored within the local memory after the processor corrects the first block of the corrected image.