Publications

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2003
Ali, J. M. H., and A. E. Hassanien, "An iris recognition system to enhance e-security environment based on wavelet theory", AMO-Advanced Modeling and Optimization, vol. 5, no. 2, pp. 93–104, 2003. Abstract
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1998
Hassanien, A. E., and M. Nakajima:, "Image Morphing of Facial Images Transformation based on Navier Elastic Body Splines", IEEE Computer Animation (CA'98) , Philadelphia, Pennsylvania, USA,, 8-10 June,, 1998. Abstract

We propose an image morphing algorithm which uses Navier elastic body splines to generate warp functions for interpolating scattered data points. The spline is based on a partial differential equation proposed by Navier that describes the equilibrium displacement of an elastic body subjected to forces. The spline maps can be expressed as the linear combination of an affine transformation and a Navier interpolation spline. The proposed algorithm generates a smooth warp that reflects feature point correspondences. It is efficient in time complexity and smoothly interpolated morphed images with only a remarkably small number of specified feature points. The algorithm allows each feature point in the source image to be mapped to the corresponding feature point in the destination image. Once the images are warped to align the positions of features and their shapes, the in-between facial animation from two given facial images can be defined by cross dissolving the positions of correspondence features and their shapes and colors. We describe an efficient cross dissolve algorithm for generating the in-between images

Aboul-Ella, H., and M. Nakajima, "Image metamorphosis transformation of facial images based on elastic body splines ", Signal Processing , issue Volume 70, Issue 2,, pp. 129–137 , 1998. Abstracts01651684.gifWebsite

In this paper, we propose a new image metamorphosis algorithm which uses elastic body splines to generate warp functions for interpolating scattered data points. The spline is based on a partial differential equation proposed by Navier that describes the equilibrium displacement of an elastic body subjected to forces. The spline maps can be expressed as the linear combination of an affine transformation and a Navier spline. The proposed algorithm generates a smooth warp that reflects feature point correspondences. It is efficient in time complexity and smoothly interpolated morphed images with only a remarkably small number of specified feature points. The algorithm allows each feature point in the source image to be mapped to the corresponding feature point in the destination image. Once the images are warped to align the positions of features and their shapes, the in-between facial animation from two given facial images can be defined by cross dissolving the positions of correspondence features and their shapes and colors. We describe an efficient cross-dissolve algorithm for generating the in-between images

Hassanien, A. E., and M. Nakajima, "Image Morphing by using Thin Plate Spline Transformation and Snake Model", 電子情報通信学会技術研究報告. EID, 電子ディスプレイ, vol. 97, no. 527: 一般社団法人電子情報通信学会, pp. 43–48, 1998. Abstract
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Hassanien, A., and M. Nakajima, "Image morphing of facial images transformation based on navier elastic body splines", Computer Animation 98. Proceedings: IEEE, pp. 119–125, 1998. Abstract
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1997
Hassanien, A. E., and H. T. A. K. A. H. A. S. H. I. M. NAKAJIMA, "Image Metamorphosis based on Elastic Body Spline and Snake Model", 映像情報メディア学会技術報告, vol. 21, no. 42: 一般社団法人映像情報メディア学会, pp. 25–30, 1997. Abstract
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Hassanien, A. E., and M. Nakajima, "Image morphing with snake model and thin-plate spline interpolation", Voice, Video, and Data Communications: International Society for Optics and Photonics, pp. 407–416, 1997. Abstract
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