Improve ALPR_OCR peformance

modules/ANSOCR/ANSOnnxOCR.cpp

@@ -50,7 +50,8 @@ bool ANSONNXOCR::Initialize(const std::string& licenseKey, OCRModelConfig modelC
 				_modelConfig.detectionModelFile,
 				clsModelPath,
 				_modelConfig.recognizerModelFile,
-				_modelConfig.recogizerCharDictionaryPath);
+				_modelConfig.recogizerCharDictionaryPath,
+				_modelConfig.useTensorRT);
 
 			return _isInitialized;
 		}
@@ -391,4 +392,16 @@ std::pair<std::string, float> ANSONNXOCR::RecognizeText(const cv::Mat& croppedIm
 	return {result.text, result.score};
 }
 
+std::vector<std::pair<std::string, float>> ANSONNXOCR::RecognizeTextBatch(
+	const std::vector<cv::Mat>& croppedImages) {
+	std::vector<std::pair<std::string, float>> out(croppedImages.size(), {"", 0.0f});
+	if (!_isInitialized || !_engine || croppedImages.empty()) return out;
+
+	auto lines = _engine->recognizeMany(croppedImages);
+	for (size_t i = 0; i < lines.size() && i < out.size(); ++i) {
+		out[i] = { lines[i].text, lines[i].score };
+	}
+	return out;
+}
+
 } // namespace ANSCENTER