I like these questions, so I will take the time to answer them.
1) You could scan the images at the start and, assuming the road colour is
most abundant in the image, set that colour value ppropriately.
2) Use some knowledge of how shadows appear in an image to explicitly ignore
them.
3) If you have a sequence of images, you can distinguish dynamic objects
from static ones such as the road.
Hope this helps,
Roy
http://www.danielsorogon.com/Webmaster
"mahesh" <maheshkrishnapillai@rediffmail.com> wrote in message
news:eed1472.-1@webx.raydaftYaTP...
> sir,
> i am a final year electronics engineering student and i am doing my
> project in road traffic control using image processing. what i have
> done is that i have isolated the vehicles in the road by subtracting
> the background image from the image containing vehicles in the road.
> BUT MY REAL PROBLEM IS AS FOLLOWS
> 1. DUE TO CLIMATIC CHANGE THE COLOUR OF THE ROAD MAY CHANGE, SO HOW
> AVOID THE PROBLEM ARAISING FROM THIS.
> 2. HOW TO OVERCOME THE SHADOW OF THE VEHICLE WHILE PROCESSING
> 3. HOW TO DISTINGUISH A DARK COLOURED CAR FROM THE ROAD.
> any one having doubt in my question please email me and ask.
> hope any one help me in this regard.please help me as it is urgent.
|