Local directional number pattern for face analysis face and expression recognition
- 1. Local Directional Number Pattern for Face Analysis: Face and Expression Recognition ABSTRACT: This paper proposes a novel local feature descriptor, local directional number pattern (LDN), for face analysis, i.e., face and expression recognition. LDN encodes the directional information of the face’s textures (i.e., the texture’s structure) in a compact way, producing a more discriminative code than current methods. We compute the structure of each micro-pattern with the aid of a compass mask that extracts directional information, and we encode such information using the prominent direction indices (directional numbers) and sign—which allows us to distinguish among similar structural patterns that have different intensity transitions. We divide the face into several regions, and extract the distribution of the LDN features from them. Then, we concatenate these features into a feature vector, and we use it as a face descriptor. We perform several experiments in which our descriptor performs consistently under illumination, noise, expression, and time lapse variations. Moreover, we test our descriptor with different masks to analyze its performance in different face analysis tasks EXISTING SYSTEM: GLOBALSOFT TECHNOLOGIES IEEE PROJECTS & SOFTWARE DEVELOPMENTS IEEE FINAL YEAR PROJECTS|IEEE ENGINEERING PROJECTS|IEEE STUDENTS PROJECTS|IEEE BULK PROJECTS|BE/BTECH/ME/MTECH/MS/MCA PROJECTS|CSE/IT/ECE/EEE PROJECTS CELL: +91 98495 39085, +91 99662 35788, +91 98495 57908, +91 97014 40401 Visit: www.finalyearprojects.org Mail to:ieeefinalsemprojects@gmail.com
- 2. In the literature, there are many methods for the holistic class, such as, Eigenfaces and Fisherfaces, which are built on Principal Component Analysis (PCA); the more recent 2D PCA, and Linear Discriminant Analysis are also examples of holistic methods. Although these methods have been studied widely, local descriptors have gained attention because of their robustness to illumination and pose variations. Heiseleet al.showed the validity of the component-based methods, and how they outperform holistic methods. The local-feature methods compute the descriptor from parts of the face, and then gather the information into one descriptor. Among these methods are Local Features Analysis, Gabor features, Elastic Bunch Graph Matching, and Local Binary Pattern (LBP). The last one is an extension of the LBP feature that was originally designed for texture description, applied to face recognition. LBP achieved better performance than previous methods, thus it gained popularity, and was studied extensively. Newer methods tried to overcome the shortcomings of LBP, like Local Ternary Pattern (LTP), and Local Directional Pattern (LDiP). The last method encodes the directional information in the neighborhood, instead of the intensity. Also, Zhanget al. explored the use of higher order local derivatives (LDeP) to produce better results than LBP. Both methods use other information, instead of intensity, to overcome noise and illumination variation problems. However, these methods still suffer in non-monotonic illumination variation, random noise, and changes in pose, age, and expression conditions. Although some methods, like Gradientfaces, have a high discrimination power under illumination variation, they still have low recognition capabilities for expression and age variation conditions. However, some methods explored different features, such as, infrared, near infrared, and phase information, to overcome the illumination problem while maintaining the performance under difficult conditions. DISADVANTAGES OF EXISTING SYSTEM: Both methods use other information, instead of intensity, to overcome noise and illumination variation problems. However, these methods still suffer in non-monotonic illumination variation, random noise, and changes in pose, age, and expression conditions.
- 3. Although some methods, like Gradientfaces, have a high discrimination power under illumination variation, they still have low recognition capabilities for expression and age variation conditions. PROPOSED SYSTEM: In this paper, we propose a face descriptor, Local Directional Number Pattern (LDN), for robust face recognition that encodes the structural information and the intensity variations of the face’s texture. LDN encodes the structure of a local neighborhood by analyzing its directional information. Consequently, we compute the edge responses in the neighborhood, in eight different directions with a compass mask. Then, from all the directions, we choose the top positive and negative directions to produce a meaningful descriptor for different textures with similar structural patterns. This approach allows us to distinguish intensity changes (e.g., from bright to dark and vice versa) in the texture. Furthermore, our descriptor uses the information of the entire neighborhood, instead of using sparse points for its computation like LBP. Hence, our approach conveys more information into the code, yet it is more compact—as it is six bit long. Moreover, we experiment with different masks and resolutions of the mask to acquire characteristics that may be neglected by just one, and combine them to extend the encoded information. We found that the inclusion of multiple encoding levels produces an improvement in the detection process. ADVANTAGES OF PROPOSED SYSTEM: 1) The coding scheme is based on directional numbers, instead of bit strings, which encodes the information of the neighborhood in a more efficient way 2) The implicit use of sign information, in comparison with previous directional and derivative methods we encode more information in less space, and, at the same time, discriminate more textures; and 3) The use of gradient information makes the method robust against illumination changes and noise.
- 4. SYSTEM CONFIGURATION:- HARDWARE REQUIREMENTS:- Processor - Pentium –IV Speed - 1.1 Ghz RAM - 256 MB(min) Hard Disk - 20 GB Key Board - Standard Windows Keyboard Mouse - Two or Three Button Mouse Monitor - SVGA SOFTWARE REQUIREMENTS: • Operating system : - Windows XP. • Coding Language : C#.Net REFERENCE: Adin Ramirez Rivera,Student Member, IEEE,Jorge Rojas Castillo,Student Member, IEEE, and Oksam Chae,Member, IEEE ―Local Directional Number Pattern for Face Analysis: Face and Expression Recognition‖- IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 22, NO. 5, MAY 2013.
- 6. CLOUING DOMAIN: WIRELESS NETWORK PROJECTS