Which interface to choose SPI MIPI or Parallel?
I'll suggest you to use parallel interface port for better speed.For SPI based camera's it'll be slow when compared to parallel interface because of clock pulse used in the SPI. And moreover,parallel interface is straight forward but requires lots of pins for communication.But in the case of SPI,you just need 4 pins only(I dont know your camera's actual I/O present in SPI camera.But generally minimum of 4 pins require for SPI interface).If you want to save lot of your I/O in micro-controller,use SPI interface,but they are somehow slow(I didn't mean it's dead slow,just a little bit).If you don't worry about number of I/O pins ,you can use parallel interface.