This book presents a selection of papers from the 5th International Conference on Frontiers of Electronics, Information and Computation Technologies (ICFEICT), held in Ningbo, China, from June 27 to 29, 2025. It highlights recent advances in applied and interdisciplinary engineering, with a focus on electronics, information, and computation technologies and their practical applications.Topics covered include signal processing, computer vision, quantum computing, 5G/6G communications, and digital communication, among others. Aimed at graduate students, researchers, and academic scholars, the book also offers valuable insights for engineers and professionals engaged in real-world engineering tasks.