r/deeplearning - Guidance for PhD in Computer Vision and Deep Learning

I want to do a PhD in Computer Vision as research is my passion. For the past one year, I've been reading different papers, doing different courses and projects. But, when it comes to research, I'm not able to product ideas which are feasible. I've been trying to come up with a good method to tackle the problem of Image captioning since it involved having knowledge in both CV and NLP. I've been thinking about it trying to find a new solution from January of 2019.