Recognition of landmarks distorted by fish-eye lens

نویسندگان

  • Barbara Zitová
  • Homero V. Ríos
  • Juan Manuel Gutiérrez
  • Antonio Marín
چکیده

The paper deals with recognition of artificial landmarks using fish-eye lens. The proposed recognition model is based on algebraic affine moment invariants (AMIs). Landmarks are used for the navigation of an autonomous robot, equipped with a fisheye lens camera. The recognition ability of the AMIs regarding the deformation introduced by the fish-eye lens image acquisition is investigated. The results of the experiments in real situations, which proved the discriminability and the stability of the recognition model, are shown.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ontogeny of the eye of Caspian kutum (Rutilus frisii kutum) from prehatch to final larval stage

The present study examines the developmental stages of the eye retina in Caspian kutum during the pre-hatch stage to end of the larval stage. Fertilized eggs of Caspian kutum were obtained from Shahid Ansari Center for Reproduction of teleost fish (Guilan province, Iran). Sampling was done for one month until the larval stage completed and the yolk sac completely depleted. Samples were studied ...

متن کامل

A Performance Evaluation of Using Fish-Eye Lenses in Low- Altitude UAV Mapping Applications

One of the major uses of unmanned aerial vehicles (UAVs) has been to provide aerial imagery for applications, such as quantitative remote sensing and surveillance. UAVs have the potential to provide this imagery in a much more cost-effective manner than satellite systems. Additionally they have the added advantage of being able to collect the data on an “as needed” basis (eg. daily) and can als...

متن کامل

Intrinsic parameter calibration procedure for a (high-distortion) fish-eye lens camera with distortion model and accuracy estimation

-This paper presents a calibration procedure for a fish-eye lens (a high-distortion lens) mounted on a CCD TV camera. The method is designed to account for the differences in images acquired via a distortion-free lens camera setup and the images obtained by a fish-eye lens camera. The calibration procedure essentially defines a mapping between points in the world coordinate system and their cor...

متن کامل

Persian Phone Recognition Using Acoustic Landmarks and Neural Network-based variability compensation methods

Speech recognition is a subfield of artificial intelligence that develops technologies to convert speech utterance into transcription. So far, various methods such as hidden Markov models and artificial neural networks have been used to develop speech recognition systems. In most of these systems, the speech signal frames are processed uniformly, while the information is not evenly distributed ...

متن کامل

Assessment of the Lens Anterior–Posterior Diameter as Compared with the Eye Globe by Ultrasonography in Rabbit

Objective- Assessment of the lens anterior – posterior (AP) diameter as compared with the eye globe by ultrasonography in rabbit.   Design- Descriptive study.   Animals- 120 male and female rabbits, two months to four years old, and weighting between 300 to 1500gr.   Procedures- 2D ultrasonography of the eyes was performed and AP diameter of the eyes and lens were measured using Sonosite Tit...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004