THIS PAPER PRESENTS THE INCORPORATION OF A NEW INTERNAL FORCE FOR ACTIVE CONTOURS. THIS INTERNAL FORCE IS GENERATED BY AN ELECTRIC CHARGE, DISTRIBUTED ALL - OVER THE ACTIVE CONTOUR. OUR EXTENDED CONTOUR MODEL CAN DESCRIBE OBJECTS WITH HIGH CURVATURE, WITHOUT INCREASING THE NUMBER OF CONTROL POINTS.THIS PAPER PRESENTS THE INCORPORATION OF A NEW INTERNAL FORCE FOR ACTIVE CONTOURS. THIS INTERNAL FORCE IS GENERATED BY AN ELECTRIC CHARGE, DISTRIBUTED ALL - OVER THE ACTIVE CONTOUR. OUR EXTENDED CONTOUR MODEL CAN DESCRIBE OBJECTS WITH HIGH CURVATURE, WITHOUT INCREASING THE NUMBER OF CONTROL POINTS.