L. Geng, W. Li, J. Xi, and Y. Liu, “Pointer Temperature and Humidity Meter Detection Based on Machine Vision”, ASRJETS-Journal, vol. 52, no. 1, pp. 162–175, Feb. 2019, Accessed: Nov. 06, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/4654