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Refactored post processing to improve accuracy of alternative results

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psaintjust
2015-06-28 10:31:33 -04:00
parent 99afc9e2b6
commit e2a302d8f8
3 changed files with 131 additions and 206 deletions
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47
src/openalpr/alpr_impl.cpp
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@@ -194,36 +194,29 @@ namespace alpr
for (unsigned int pp = 0; pp < ppResults.size(); pp++)
{
if (pp >= topN)
break;
int plate_char_length = utf8::distance(ppResults[pp].letters.begin(), ppResults[pp].letters.end());
if (plate_char_length >= config->postProcessMinCharacters &&
plate_char_length <= config->postProcessMaxCharacters)
// Set our "best plate" match to either the first entry, or the first entry with a postprocessor template match
if (bestPlateIndex == 0 && ppResults[pp].matchesTemplate)
bestPlateIndex = plateResult.topNPlates.size();
AlprPlate aplate;
aplate.characters = ppResults[pp].letters;
aplate.overall_confidence = ppResults[pp].totalscore;
aplate.matches_template = ppResults[pp].matchesTemplate;
// Grab detailed results for each character
for (unsigned int c_idx = 0; c_idx < ppResults[pp].letter_details.size(); c_idx++)
{
// Set our "best plate" match to either the first entry, or the first entry with a postprocessor template match
if (bestPlateIndex == 0 && ppResults[pp].matchesTemplate)
bestPlateIndex = plateResult.topNPlates.size();
AlprPlate aplate;
aplate.characters = ppResults[pp].letters;
aplate.overall_confidence = ppResults[pp].totalscore;
aplate.matches_template = ppResults[pp].matchesTemplate;
// Grab detailed results for each character
for (unsigned int c_idx = 0; c_idx < ppResults[pp].letter_details.size(); c_idx++)
{
AlprChar character_details;
character_details.character = ppResults[pp].letter_details[c_idx].letter;
character_details.confidence = ppResults[pp].letter_details[c_idx].totalscore;
cv::Rect char_rect = pipeline_data.charRegions[ppResults[pp].letter_details[c_idx].charposition];
std::vector<AlprCoordinate> charpoints = getCharacterPoints(char_rect, &pipeline_data );
for (int cpt = 0; cpt < 4; cpt++)
character_details.corners[cpt] = charpoints[cpt];
aplate.character_details.push_back(character_details);
}
plateResult.topNPlates.push_back(aplate);
AlprChar character_details;
character_details.character = ppResults[pp].letter_details[c_idx].letter;
character_details.confidence = ppResults[pp].letter_details[c_idx].totalscore;
cv::Rect char_rect = pipeline_data.charRegions[ppResults[pp].letter_details[c_idx].charposition];
std::vector<AlprCoordinate> charpoints = getCharacterPoints(char_rect, &pipeline_data );
for (int cpt = 0; cpt < 4; cpt++)
character_details.corners[cpt] = charpoints[cpt];
aplate.character_details.push_back(character_details);
}
plateResult.topNPlates.push_back(aplate);
}