Extraction of Affine Invariant Features Using Fractal

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

Extraction of Affine Invariant Features Using Fractal

An approach based on fractal is presented for extracting affine invariant features. Central projection transformation is employed to reduce the dimensionality of the original input pattern, and general contour (GC) of the pattern is derived. Affine invariant features cannot be extracted from GC directly due to shearing. To address this problem, a group of curves (which are called shift curves) ...

متن کامل

Speech recognition using localized affine invariant features

This paper proposes localized affine invariant features (LAIFs) for speaker-independent automatic speech recognition. The LAIFs can be calculated directly from data sequences. As speaker variations can be approximated well by affine transform in a cepstral space, the LAIFs can provide robust features with respect to those variations. This fact inspires us to expect that the use of the LAIFs sho...

متن کامل

FAI: Fast Affine Invariant Features Detection and Descriptor Extraction

Invariant feature detectors and descriptors are a common tool now for many computer vision tasks. Recently, fast and efficient variants such as BRISK were developed to offset the computational burden of traditional invariant descriptors such as SIFT. A common thread in invariant descriptors is affine invariance which improves matching performance in large baseline situations. In this work we de...

متن کامل

Fractal Image Coding and Magnification Using Invariant Features

Fractal image coding has signiicant potential for the compression of still and moving images and also for scaling up images. The objective of our investigations was twofold. First, compression ratios of factor 60 and more for still images have been achieved, yielding a better quality of the decoded picture material than standard methods like JPEG. Second, image enlargement up to factors of 16 p...

متن کامل

Extraction of Illumination Invariant Features using Fuzzy Threshold based Approach

The field of face recognition is increasingly investigated for access control, face based search, passport processing, security, surveillance, etc. applications. Performance of face recognition systems under constrained environment is quite satisfactory, but face recognition in unconstrained environment is yet a challenging problem due to key technical challenging issues. Varying illumination i...

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: Advances in Mathematical Physics

سال: 2013

ISSN: 1687-9120,1687-9139

DOI: 10.1155/2013/950289