1 Introduction  
1.1 Purposes of Sperm Analysis  
1.2 Motivation of This Survey  
1.3 General Techniques in CASA Field  
1.4 Structure of This Survey  

2 Related Knowledge about CASA  
2.1 Overview of CASA System Components  
2.2 Introduction to Abnormal Sperm  
2.3 Characteristics of Sperm in Microscopic Videos  

3 Sperm Detection (Localization)  

4 Sperm Tracking  

5 The Future of Computer-aided Sperm Analysis  
5.1 Methods Analysis  
5.2 Technical Limitations  
5.3 Potential Methods for CASA  

6 Conclusion and Future Work