1。 In terms of images. Includes image processing, compression, coding and recognition.

2。 Communication network algorithm. Including the algorithm design of a node in the communication network, such as routing algorithm.

3。 Speech signal processing. Include speech recognition and analysis.

4。 Design and programming of device circuits.

Most of what you said are topics that anyone who has not studied any professional courses can write.

This paper is mainly about the design and implementation of some algorithms, which are closely related to mathematics.

The most important thing is that the purpose of writing this paper is that the things involved in the paper are useful.