  In this paper, we propose a new super resolution technique based on the
interpolation followed by registering them using iterative back projection
(IBP). Low resolution images are being interpolated and then the interpolated
images are being registered in order to generate a sharper high resolution
image. The proposed technique has been tested on Lena, Elaine, Pepper, and
Baboon. The quantitative peak signal-to-noise ratio (PSNR) and structural
similarity index (SSIM) results as well as the visual results show the
superiority of the proposed technique over the conventional and state-of-art
image super resolution techniques. For Lena's image, the PSNR is 6.52 dB higher
than the bicubic interpolation.
