Face recognition using fractional coefficients and discrete cosine transform tool

نویسندگان

چکیده

Face recognition is a computer vision application based on biometric information for automatic person identification or verification from image sequence video frame. In this context DCT the easy technique to determine significant parameters. Until now main object selection of coefficients obtain best recognition. Many techniques rely premasking windows discard high and low enhance performance. However, problem resides in shape size premask. To improve discriminator ability discrete cosine transform domain, we used fractional transformed images with limit area better performance system. Then selected bands, use discrimination power analysis search having highest discriminate different classes each other. Feature algorithm key issue all pattern system, fact utilized define features vector among several ones, where these are according specified criterion. classifiers evaluate our approach like, support machine random forests. The proposed validated Yale ORL databases. Experimental results prove sufficiency method face facial expression field.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Block-level Discrete Cosine Transform Coefficients for Autonomic Face Recognition

.......................................................................................................... ix CHAPTER

متن کامل

Photometric Normalization for Face Recognition using Local discrete cosine Transform

Variations in illumination is one of major limiting factors of face recognition system performance. The e®ect of changes in the incident light on face images is analyzed, as well as its in°uence on the low frequency components of the image. Starting from this analysis, a new photometric normalization method for illumination invariant face recognition is presented. Low-frequency Discrete Cosine ...

متن کامل

2.5D Face Recognition Using Gabor Discrete Cosine Transform

In this paper, we present a novel 2.5D face recognition method based on Gabor Discrete Cosine Transform (GDCT). In the proposed method, the Gabor filter is applied to extract feature vectors from the texture and the depth information. Then, Discrete Cosine Transform (DCT) is used for dimensionality and redundancy reduction to improve computational efficiency. The system is combined texture and ...

متن کامل

Face Recognition using Discrete Cosine Transform plus Linear Discriminant Analysis

recognition is a biometric identification method which among the other methods such as, finger print identification, speech recognition, signature and hand written recognition has assigned a special place to itself. In principle, the biometric identification methods include a wide range of sciences such as machine vision, image processing, pattern recognition neural networks and has various app...

متن کامل

Image Compression and Encryption Using Discrete Fractional Cosine Transform

,PDJH SURFHVVLQJ PRVW IUHTXHQWO\ XVHV WKH WUDQVIRUPV OLNH 'LVFUHWH &RVLQH 7UDQVIRUP RU )RXULHU WUDQVIRUP IRU LPDJH FRPSUHVVLRQ 7KLV LQYROYHV WKH FRQYHUVLRQ RI WKH VRXUFH VLJQDO WR IUHTXHQF\ FRPSRQHQW 7KH DSSOLFDWLRQ RI )UDFWLRQDO YHUVLRQ RI FRVLQH WUDQVIRUP FDOOHG 'LVFUHWH )UDFWLRQDO &RVLQH 7UDQVIRUP WR LPDJH FRPSUHVVLRQ LV IDLUO\ QHZ ')5&7 VKDUHV PDQ\ XVHIXO SURSHUWLHV RI UHJXODU '&7 LW KDV IU...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Power Electronics and Drive Systems

سال: 2021

ISSN: ['2722-2578', '2722-256X']

DOI: https://doi.org/10.11591/ijece.v11i1.pp892-899