The application discloses a kind of NPU-oriented multi-edition banknote crown code number identification method and
system, for the crown code number identification in multi-edition, multi-
pose and complex
imaging condition banknote image, specifically includes the following steps:
data annotation and pre-
processing stage;Model training stage;NPU
adaptation and model quantization stage.For the crown code number of Arab currency and the like in size and position variation, character adhesion / connected pen and background reflection, anti-counterfeiting
underlay interference and the like, the traditional template two-stage OCR is prone to miss detection,
false detection and sequence disorder, a template-independent end-to-end recognition method is proposed, which completes the robust positioning and sequence correct identification of crown code number in a
single process, significantly reduces false positives and wrong sequence, and uses NPU to accelerate to meet the real-time and stability requirements of embedded and edge.