I’m a computer vision fan and professional financial application programmer. My motto is “Introspect yourself every day and night, and keep in mind what you’ve learned”, so I build this site to help myself memorize and review my knowledge. I’m more than happy to know if you learn something from my site. The initial purpose of this site is totally for myself but I realize some of those contents might be helpful to others, so I make it public. Please help me make it better by commenting anything you like or dislike, or send me email if you have any questions.