  Object localization has a vital role in any object detector, and therefore,
has been the focus of attention by many researchers. In this article, a special
training approach is proposed for a light convolutional neural network (CNN) to
determine the region of interest (ROI) in an image while effectively reducing
the number of probable anchor boxes. Almost all CNN-based detectors utilize a
fixed input size image, which may yield poor performance when dealing with
various object sizes. In this paper, a different CNN structure is proposed
taking three different input sizes, to enhance the performance. In order to
demonstrate the effectiveness of the proposed method, two common data set are
used for training while tracking by localization application is considered to
demonstrate its final performance. The promising results indicate the
applicability of the presented structure and the training method in practice.
