Projekt in automotive field based in Arduino and object detection

Hello everyone! I am kind of new here and, as a student of automotive technology, i would like to make a project using Arduino and a camera in order to recognize something during the route (such signs or other cars).

The problem comes in the power of arduino. Normally these specialized camera transmit an enormous amount of data that can overwhelm our Arduino. [

My question is if you guys know some 'not so incredible' camera which i can use it together with Arduino.

I have found the Pixy camera (Pixy - Low Cost Camera Recognizes Objects) but I am afraid that only a colour detection is not enough for these kinds of detections i want to make. Or yes? Any idea?

Thanks in advance and i wait for the answers!!

There is too little memory in a Arduino for image processing, and if the camera does all the work, what would the Arduino do?

jremington:
There is too little memory in a Arduino for image processing, and if the camera does all the work, what would the Arduino do?

Arduino would say which things i want to recognize. Take a look (specially in the end of the video):