Methods and systems for assessing the quality of automatically generated text

A computer-implemented method of assessing quality of computer-generated text in a document image, the method comprising:

• identifying text quality scores associated with a plurality of digital text characters generated from the document image, a text quality score for a target character describing a likelihood of the target character being at a location of the target character within the document image;
• identifying a plurality of subsets of characters having associated text quality scores that differ from text quality scores associated with neighboring characters in the document image by more than a threshold value;
• segmenting the document image into a plurality of segments associated with different text quality scores responsive to the identified plurality of subsets of characters;
• determining a representative text quality score for each segment of the document image;
• and
• storing the representative text quality scores in association with the segments.

A computer system for segmenting a document image, comprising:

• a processor for executing computer program instructions;
• a non-transitory computer-readable storage medium storing executable computer program instructions, the computer-readable storage medium comprising:
• a score module configured to identify text quality scores associated with a plurality of digital text characters generated from the document image, a text quality score for a target character describing a likelihood of the target character being at a location of the target character within the document image;
• a score analysis module configured to:
• identify a plurality of subsets of characters having associated text quality scores that differ from text quality scores associated with neighboring characters in the document image by more than a threshold value;
• segment the document image into a plurality of segments associated with different text quality scores responsive to the identified plurality of subsets of characters;
• and
• determine a representative text quality score for each segment of the document image;
• and
• a text quality database configured to store the representative text quality scores in association with the segments.

A non-transitory computer-readable storage medium storing executable computer program instructions for performing steps comprising:

• identifying text quality scores associated with a plurality of digital text characters generated from the document image, a text quality score for a target character describing a likelihood of the target character being at a location of the target character within the document image;
• identifying a plurality of subsets of characters having associated text quality scores that differ from text quality scores associated with neighboring characters in the document image by more than a threshold value;
• segmenting the document image into a plurality of segments associated with different text quality scores responsive to the identified plurality of subsets of characters;
• determining a representative text quality score for each segment of the document image;
• and
• storing the representative text quality scores in association with the segments.