A novel method for Pu-erh tea face traceability identification based on improved MobileNetV3 and triplet loss

Data acquisition

The image data for this study were collected from a Pu-erh tea cake production plant in Puer city, Yunnan Province, China (22.78°N, 100.91°E). Two types of equipment were used to photograph each tea cake: a mobile phone (HONOR 50) and a High-Speed photographic apparatus (Eloam High-Speed Portable HD DocScanner S820A3AF). The purpose was to simulate real-world scenarios, and a schematic diagram of the image acquisition process is shown in Fig. 1. The Eloam High-Speed Portable HD DocScanner S820A3AF has CMOS Autofocusing technology with a 10 million pixel main camera that…