1 INTRODUCTION

2 VIDEO DESCRIPTION METHODS  
2.1 Classical Methods  
2.2 Statistical Methods  
2.3 Deep Learning Models  

3 DATASETS  
3.1 Cooking  
3.2 Movies  
3.3 Social Media  
3.4 Videos in the Wild  

4 VIDEO DESCRIPTION COMPETITIONS  
4.1 LSMDC  
4.2 MSR-VTT  
4.3 TRECVID  
4.4 Activity Net Challenge  

5 EVALUATION METRICS  
5.1 Automatic Sentence Generation Evaluation  
5.2 Human Evaluations  
5.3 Limitations of Evaluation Metrics  
5.4 Reliability of Evaluation Metrics  

6 BENCHMARK RESULTS  

7 FUTURE AND EMERGING DIRECTIONS  

8 CONCLUSION