Image registration is an alignment of more than two images. Such images are image-sets or ensemble of images. The registration is done by selecting one image as a template with combination of second image as a registered one, from the ensemble of images. So important is about the selection of image, as a template or registered image. Different sensors form the images of different feature that increases the importance in case of multi-sensor ensemble of images. These two images, template and registered, may use a portion of the data from the available data. This paper is on discussing different techniques for registering ensemble of images with inclusion of some new approaches in these existing techniques. We used multi-sensors to divide an input image in several images and focus on some specific part of the image. © IDOSI Publications, 2013.