Designandimplementationof Learning Notes System Based On Android Platform

With the popularization of mobile terminal devices,the application of mobile phones enriches people's lives and learning.The various study notes systems that came into being have provided great convenience for people's learning anywhere and anytime.However,most current note-taking systems have the disadvantages of inconvenient retrieval of picture or voice notes,inability to complete picture note editing,and the like.This topic combines image processing,OCR,and speech recognition technologies,focusing on the functions of image editing and image content retrieval in the note-taking system.This paper first introduces the system requirements analysis and outline design,and then introduces the system UI design,detailed function design and algorithm design of key modules.Finally,the detailed implementation method and implementation result of the system are given.The OCR and speech recognition technologies used in this system are implemented using third-party interfaces,focusing on image processing and content retrieval.The client adopts the MVC three-tier architecture design and implements the development and testing of the study notes system in the Android Studio compilation environment through JAVA,XML,and other programming languages,and realizes the recording of multimedia notes,retrieval by keywords,and collection of key notes.Note reminders and other functions.The system features include:(1)Image notes and voice notes can be retrieved based on OCR text recognition and speech recognition results.(2)Graffiti,editing,and other operations can be performed on photo notes to facilitate later consolidation.