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Adding hierarchical plate regions. The goal is to minimize unnecessary processing of regions within regions

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This commit is contained in:
Matt Hill
2014-04-04 15:37:06 -05:00
parent e722f8a184
commit 59ffed9b23
5 changed files with 51 additions and 21 deletions
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15
src/openalpr/alpr_impl.cpp
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@@ -79,7 +79,7 @@ std::vector<AlprResult> AlprImpl::recognize(cv::Mat img)
// Find all the candidate regions
vector<Rect> plateRegions = plateDetector->detect(img);
vector<PlateRegion> plateRegions = plateDetector->detect(img);
// Get the number of threads specified and make sure the value is sane (cannot be greater than CPU cores or less than 1)
int numThreads = config->multithreading_cores;
@@ -120,7 +120,7 @@ std::vector<AlprResult> AlprImpl::recognize(cv::Mat img)
{
for (int i = 0; i < plateRegions.size(); i++)
{
rectangle(img, plateRegions[i], Scalar(0, 0, 255), 2);
rectangle(img, plateRegions[i].rect, Scalar(0, 0, 255), 2);
}
for (int i = 0; i < dispatcher.getRecognitionResults().size(); i++)
@@ -137,8 +137,9 @@ std::vector<AlprResult> AlprImpl::recognize(cv::Mat img)
displayImage(config, "Main Image", img);
// Pause indefinitely until they press a key
while ((char) cv::waitKey(50) == -1)
{}
cv::waitKey(1);
//while ((char) cv::waitKey(50) == -1)
// {}
}
@@ -163,7 +164,7 @@ void plateAnalysisThread(void* arg)
cout << "Thread: " << tthread::this_thread::get_id() << " loop " << ++loop_count << endl;
// Get a single plate region from the queue
Rect plateRegion = dispatcher->nextPlate();
PlateRegion plateRegion = dispatcher->nextPlate();
Mat img = dispatcher->getImageCopy();
@@ -172,7 +173,7 @@ void plateAnalysisThread(void* arg)
timespec platestarttime;
getTime(&platestarttime);
LicensePlateCandidate lp(img, plateRegion, dispatcher->config);
LicensePlateCandidate lp(img, plateRegion.rect, dispatcher->config);
lp.recognize();
@@ -192,7 +193,7 @@ void plateAnalysisThread(void* arg)
if (dispatcher->detectRegion)
{
char statecode[4];
plateResult.regionConfidence = dispatcher->stateIdentifier->recognize(img, plateRegion, statecode);
plateResult.regionConfidence = dispatcher->stateIdentifier->recognize(img, plateRegion.rect, statecode);
if (plateResult.regionConfidence > 0)
{
plateResult.region = statecode;