Autor: Ostrowski, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Automatic calibration of stereoscopic cameras in an electronic travel aid for the blind
Autorzy:: Pełczyński, P.
Ostrowski, B.
Powiązania:: https://bibliotekanauki.pl/articles/220839.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: stereovision
canonical setup
extrinsic parameters
image rectification
disparity
Opis:: The article describes a technique developed for identification of extrinsic parameters of a stereovision camera system for the purpose of image rectification without the use of reference calibration objects. The goal of the presented algorithm is the determination of the mutual position of cameras, under the assumption that they can be modeled by pinhole cameras, are separated by a fixed distance and are moving through a stationary scene. The developed method was verified experimentally on image sequences of a scene with a known structure.
Źródło:: Metrology and Measurement Systems; 2013, 20, 2; 229-238
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Motion vector estimation of a stereovision camera with inertial sensors
Autorzy:: Pełczyński, P.
Ostrowski, B.
Rzeszotarski, D.
Powiązania:: https://bibliotekanauki.pl/articles/221704.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: passive navigation
motion vector
disparity
feature points
Opis:: The aim of the presented work was the development of a tracking algorithm for a stereoscopic camera setup equipped with an additional inertial sensor. The input of the algorithm consists of the image sequence, angular velocity and linear acceleration vectors measured by the inertial sensor. The main assumption of the project was fusion of data streams from both sources to obtain more accurate ego-motion estimation. An electronic module for recording the inertial sensor data was built. Inertial measurements allowed a coarse estimation of the image motion field that has reduced its search range by standard image-based methods. Continuous tracking of the camera motion has been achieved (including moments of image information loss). Results of the presented study are being implemented in a currently developed obstacle avoidance system for visually impaired pedestrians.
Źródło:: Metrology and Measurement Systems; 2012, 19, 1; 141-150
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja