Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Xuanrui Gong"'
Publikováno v:
IEEE Access, Vol 8, Pp 42097-42110 (2020)
The Fourier-based gradient field integration method can efficiently reconstruct transparent surfaces from the measured gradient data in the Shape-from-polarization method. However, for the differentiation operator having large truncation errors and l
Externí odkaz:
https://doaj.org/article/0974c8f0c53b4237b609eaf1d19706c4
Publikováno v:
Sensors, Vol 22, Iss 19, p 7385 (2022)
In response to the problem of the small field of vision in 3D reconstruction, a 3D reconstruction system based on a catadioptric camera and projector was built by introducing a traditional camera to calibrate the catadioptric camera and projector sys
Externí odkaz:
https://doaj.org/article/1f9f73b655ad4df1b5b6160392db2b65
Publikováno v:
IEEE Access, Vol 7, Pp 152179-152186 (2019)
A distorted checkerboard image affects the precision of omnidirectional camera calibration because of the inaccurate localization of the feature points. To solve this problem, an iterative refinement method is presented. First, the initial parameters
Externí odkaz:
https://doaj.org/article/fef3ce5324944ea5acae78e4a8b1d6e1
Publikováno v:
Sensors, Vol 22, Iss 15, p 5825 (2022)
To solve the problem of low accuracy and slow speed of drone detection in high-resolution images with fixed cameras, we propose a detection method combining background difference and lightweight network SAG-YOLOv5s. First, background difference is us
Externí odkaz:
https://doaj.org/article/47d7d3549ec9494a89569d4300d05388
Publikováno v:
Sensors, Vol 21, Iss 12, p 4008 (2021)
The omnidirectional camera, having the advantage of broadening the field of view, realizes 360° imaging in the horizontal direction. Due to light reflection from the mirror surface, the collinearity relation is altered and the imaged scene has sever
Externí odkaz:
https://doaj.org/article/06644cbb0e684f579e3bfa64923ab01e
Publikováno v:
IEEE Access, Vol 8, Pp 42097-42110 (2020)
The Fourier-based gradient field integration method can efficiently reconstruct transparent surfaces from the measured gradient data in the Shape-from-polarization method. However, for the differentiation operator having large truncation errors and l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a57dbb001011f11bf6a4777033026988
https://doi.org/10.1109/access.2020.2977097
https://doi.org/10.1109/access.2020.2977097
Publikováno v:
IEEE Access, Vol 7, Pp 152179-152186 (2019)
A distorted checkerboard image affects the precision of omnidirectional camera calibration because of the inaccurate localization of the feature points. To solve this problem, an iterative refinement method is presented. First, the initial parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5e0f42cc621b3d9ff91b78d7c88d730
https://doi.org/10.1109/access.2019.2945635
https://doi.org/10.1109/access.2019.2945635
Publikováno v:
Applied Optics. 61:2256
The catadioptric panoramic imaging system may provide 360° panoramic imaging by employing the convex surface of a quadric surface with rotational symmetry as the reflector, which effectively compensates for the disadvantages of the narrow field of v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddd05ccb3bbfc6a42698791c2207cccb
https://doi.org/10.1364/ao.447883
https://doi.org/10.1364/ao.447883
Publikováno v:
Applied optics. 59(22)
The two-dimensional Fourier-transform-based integration algorithm is widely used in shape or wavefront reconstruction from gradients. However, its reconstruction accuracy is limited by the truncation error of the difference model. The truncation erro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::198ea97c355fe3c016000f4b40b61102
https://pubmed.ncbi.nlm.nih.gov/32749345
https://pubmed.ncbi.nlm.nih.gov/32749345
Publikováno v:
Eleventh International Conference on Digital Image Processing (ICDIP 2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2f57d2fc7a2f3ccae372e03bde1ef0c
https://doi.org/10.1117/12.2539870
https://doi.org/10.1117/12.2539870