Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jason P. de Villiers"'
Publikováno v:
2015 Pattern Recognition Association of South Africa and Robotics and Mechatronics International Conference (PRASA-RobMech).
This paper evaluates the effect of mixing the distortion centre, principal point and arithmetic image centre on the distortion correction, focal length determination and resulting real-world stereo vision triangulation. A robotic arm is used to gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c997bc6ec7afe6d6fb8e29ba95d42b
https://doi.org/10.1109/robomech.2015.7359493
https://doi.org/10.1109/robomech.2015.7359493
Autor:
Robert Jermy, Jason P. de Villiers
Publikováno v:
2015 Pattern Recognition Association of South Africa and Robotics and Mechatronics International Conference (PRASA-RobMech).
This paper presents two datasets for the purpose of calibrating, evaluating the calibration accuracy, and evaluating stereo vision accuracy of a pair of cameras. The authors provide a baseline that can be used as an initial comparison. This will allo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ab3ae8a12a873b487bfc390b9157c01
https://doi.org/10.1109/robomech.2015.7359504
https://doi.org/10.1109/robomech.2015.7359504
Publikováno v:
SPIE Proceedings.
This paper presents a system to determine the photogrammetric parameters of a camera. The lens distortion, focal length and camera six degree of freedom (DOF) position are calculated. The system caters for cameras of different sensitivity spectra and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92d9fac053a63cdbe7a04d31811528cb
https://doi.org/10.1117/12.2060000
https://doi.org/10.1117/12.2060000
Autor:
Jaco Cronje, Jason P. de Villiers
Publikováno v:
Automatic Target Recognition XXIII.
This work extends earlier work on the real-time photogrammetric stitching of staring arrays of high resolution videos on commercial off the shelf hardware. The blending is both further optimised for Graphics Processor Unit (GPU) implementation and ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58805ee9f5d84a86f434821ad76522ab
https://doi.org/10.1117/12.2015581
https://doi.org/10.1117/12.2015581
Publikováno v:
Visual Information Processing
This work aims to quantify and improve the sensitivity of monocular passive ranging techniques in sequences that are degraded by the the quasi-periodic inter frame motion and localised blurring associated with atmospheric scintillation. Ranges from t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7243e4fa911a18723d2e3ab2098e8308
https://doi.org/10.1117/12.920358
https://doi.org/10.1117/12.920358
Publikováno v:
SPIE Proceedings.
This work aims to evaluate the improvement in the performance of tracking small maritime targets due to real-time enhancement of the video streams from high zoom cameras on pan-tilt pedestal. Due to atmospheric conditions these images can frequently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d652d89cf73d7caaa11f590101a7d604
https://doi.org/10.1117/12.884046
https://doi.org/10.1117/12.884046
Publikováno v:
SPIE Proceedings.
Tracking targets in a panoramic image is in many senses the inverse problem of tracking targets with a narrow field of view camera on a pan-tilt pedestal. In a narrow field of view camera tracking a moving target, the object is constant and the backg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f130f61a11096c06876830163b9ed5a
https://doi.org/10.1117/12.884052
https://doi.org/10.1117/12.884052
Publikováno v:
Visual Information Processing
Inverse lens distortion modelling allows one to find the pixel in a distorted image which corresponds to a known point in object space, such as may be produced by RADAR. This paper extends recent work using neural networks as a compromise between pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a87f19377306a8ddba372fd9dadd4778
https://doi.org/10.1117/12.884065
https://doi.org/10.1117/12.884065
Publikováno v:
Afrigraph
Image registration forms the basis of many computer vision tasks. The Lucas-Kanade image registration algorithm is known to efficiently solve the sub-problem of rigid image registration. It is therefore often used in image stabilisation applications.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30ce8c6900d24ee1a730bea8f8e37099
https://doi.org/10.1145/1811158.1811172
https://doi.org/10.1145/1811158.1811172
Autor:
Jason P. de Villiers
Publikováno v:
Afrigraph
Improving the quality of an image increases the probability, speed and accuracy with which possible objects of interest can be located and identified. Image sharpening, in particular, can correct for soft focus and strengthen the outlines of objects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5370d9c59036b71fcdfe0b92d7e1512
https://doi.org/10.1145/1811158.1811168
https://doi.org/10.1145/1811158.1811168