Reconstructing document from series of document images

A system, comprising:

• a memory;
• a processor, coupled to the memory, the processor configured to:
• receive a plurality of image frames, wherein each image frame of the plurality of image frames contains at least a part of an image of an original document;
• identify a plurality of visual features in the plurality of image frames;
• perform spatial alignment of the plurality of image frames based on matching the identified visual features;
• split each of the plurality of image frames into a plurality of image fragments;
• identify one or more text-depicting image fragments among the plurality of image fragments;
• associate each identified text-depicting image fragment with an image frame in which that image fragment has an optimal value of a pre-defined quality metric among values of the quality metric for that image fragment in the plurality of image frames;
• and
• produce a reconstructed image frame by blending image fragments from the associated image frames.

A computer-readable non-transitory storage medium comprising executable instructions that, when executed by a processing device, cause the processing device to:

• receive a plurality of image frames, wherein each image frame of the plurality of image frames contains at least a part of an image of an original document;
• identify a plurality of visual features in the plurality of image frames;
• perform spatial alignment of the plurality of image frames based on matching the identified visual features;
• split each of the plurality of image frames into a plurality of image fragments;
• identify one or more text-depicting image fragments among the plurality of image fragments;
• associate each identified text-depicting image fragment with an image frame in which that image fragment has an optimal value of a pre-defined quality metric among values of the quality metric for that image fragment in the plurality of image frames;
• and
• produce a reconstructed image frame by blending image fragments from the associated image frames.