calcualting velocity of object (s) in a video sequence.
in [Matlab]
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From: Asif Mehmood on 17 Mar 2010 15:59 Hi, I want to compute the velocity of moving objects from their image frames. Let us say I have X number of frame obtained from a video sequence and I have found the centroid of each object in each frame i.e. x, y coordinates of each object's mass center. Now by using these vectors of centroids I want to compute the velocity of different objects. Your help will be appreciated. Asef
From: Mihir Naik on 23 Mar 2010 12:50
Hi....Asif... since u have co-ordinate of centroid u can easily compute the distance travelled... using the frame rate of yr camera u r using to take images u can calculate time for the distance travelled..... once u got total distance travelled and time required u can easily comupte velocity by distance/time (m/sec)..... I hope this will help.......... Regards: Mihir "Asif Mehmood" <asif.kyani(a)gmail.com> wrote in message <hnrcaq$h62$1(a)fred.mathworks.com>... > Hi, > I want to compute the velocity of moving objects from their image frames. Let us say I have X number of frame obtained from a video sequence and I have found the centroid of each object in each frame i.e. x, y coordinates of each object's mass center. Now by using these vectors of centroids I want to compute the velocity of different objects. > Your help will be appreciated. > Asef |