Fig. 5From: Abnormality tracking during video capsule endoscopy using an affine triangular constraint based on surrounding featuresMovement between successive frames caused by a a parallel shift and b, c rotational movements of the camera. The red rectangles identify abnormal regions. The green rectangles show the attempt to track these abnormalities by assuming only a parallel shift (the conventional method) whereas the blue rectangles show the attempt to track these abnormalities using affine voting (the proposed method)Back to article page