International Journal of Advance Computational Engineering and Networking (IJACEN)
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Jul. 2024
Submitted Papers : 80
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  Journal Paper

Paper Title :
3-D Faces Recognition With Missing Parts: A Review

Author :Asmita A. Pawar, Nitin N. Patil

Article Citation :Asmita A. Pawar ,Nitin N. Patil , (2014 ) " 3-D Faces Recognition With Missing Parts: A Review " , International Journal of Advance Computational Engineering and Networking (IJACEN) , pp. 01-04, Volume-2,Issue-2

Abstract : Abstract— This paper presents a survey of face recognition which is a very important task of identifying human faces. Face representations based on 3-D data are expected to be much more complicated to pose changes and illumination variations than 2-D images, thus allowing accurate face recognition also in real-world applications with unconstrained acquisition. FACE recognition using 3-D scans of the face has been recently developed as an alternative or complementary solution to conventional 2-D face recognition approaches working on still images. A possible way to solve locally the problem of missing data in 3-D face acquisition is to detect the absence of regions of the face and use the existing data to reconstruct the missing parts. Traditional 3-D face modelling and recognition methods constrain human faces with either the Lambertian assumption or the same assumption, resulting in suboptimal shape and texture models. This strategy is SIFT-based and performs in a hybrid way that combines local analysis and holistic analysis, associating associating the keypoints between two facial representations of the same subject. Global 3-D face representations for partial face matching have been given in a limited number of works. A canonical representation of the face is that which exploits the isometry invariance of the face surface to manage missing data obtained by randomly removing areas from frontal face scans. 3-D surface approximation which considers spatial variability of specular and use reactions in face modelling and recognition testing. Instead of evolving each test case individually, evolve all the test cases in a test suite at the same time. At the end, the best resulting test suite is minimized. Personalized 3-D face models are estimated from a small number of face images under different lighting conditions with a fixed viewpoint .Both shape and surface reactance properties are calculated locally through minimization of the image differences between the original images and their estimations. Stochastic computational methods and integrability enforcement are employed to handle the nonlinearity and inconsistency issues in the shape and reactance parameter optimization processes to achieve valid results. Recently, pose variations in face recognition captured growing interest from researchers in the fields of computer vision and pattern recognition. An effective strategy to handle pose variations is to use the assistance of 3-D face models, because human heads are nonplanar 3-D objects so that viewpoint changes take place in the 3-D space. Three dimensional model-based face recognition using personalized 3-D models estimated from 2-D images has shown its promise. Such face recognition algorithms perform on a recognition by-synthesis mechanism in the 2-D image spaces or in dimension reduction over shape and surface reactive parameters in the 3-D space. Consequently, the performances of these techniques are greatly dependent on the accuracy of the estimated 3-D models. Image-based face modelling considers facial textures (i.e., pixel intensities) as critical clues and estimates 3-D face shapes and surface reactance properties by reversing image formation processes.

Type : Research paper

Published : Volume-2,Issue-2


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