Calibration and Auto-Refinement for Light Field Cameras
نویسندگان
چکیده
The ability to create an accurate three-dimensional reconstruction of a captured scene draws attention the prin- ciples light fields. This paper presents approach for field camera calibration and rectification, based on pairwise pattern-based parameters extraction. It is followed by correspondence-based algorithm refinement from arbitrary scenes using triangulation filter nonlinear optimization. effec- tiveness our validated both real synthetic data.
منابع مشابه
From Single Cameras to the Camera Network: An Auto-Calibration Framework for Surveillance
This paper presents a stratified auto-calibration framework for typical large surveillance set-ups including non-overlapping cameras. The framework avoids the need of any calibration target and purely relies on visual information coming from walking people. Since in nonoverlapping scenarios there are no point correspondences across the cameras the standard techniques cannot be employed. We show...
متن کاملFlexible Calibration: Minimal Cases for Auto-Calibration
This paper deals with the concept of auto-calibration, i.e. methods to calibrate a camera on-line. In particular, we deal with minimal conditions on the intrinsic parameters needed to make a Euclidean reconstruction, called flexible calibration. The main theoretical results are that it is only needed to know that one intrinsic parameter is constant. The method is based on an initial projective ...
متن کاملDepth Estimation for Glossy Surfaces with Light-Field Cameras
Light-field cameras have now become available in both consumer and industrial applications, and recent papers have demonstrated practical algorithms for depth recovery from a passive single-shot capture. However, current lightfield depth estimation methods are designed for Lambertian objects and fail or degrade for glossy or specular surfaces. Because light-field cameras have an array of micro-...
متن کاملNew approach for calibration of pixelated scintillation detectors of intraoperative gamma cameras
Introduction:SURGEOSIGHT is a dedicated intra-operative hand-held gamma camera designed and manufactured by our team to be used for lymphoscintigraphy. Although conventional gamma cameras are widely used, they lack the capability of the sentinel lymph node (SLN) imaging in the operation room. Like conventional gamma cameras it is necessary to calibrate SURGEOSIGHT for linearity...
متن کاملTheory and Calibration for Axial Cameras
Abstract. Although most works in computer vision use perspective or other central cameras, the interest in non-central camera models has increased lately, especially with respect to omnidirectional vision. Calibration and structure-from-motion algorithms exist for both, central and non-central cameras. An intermediate class of cameras, although encountered rather frequently, has received less a...
متن کاملذخیره 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: Computer Science Research Notes
سال: 2021
ISSN: ['2464-4625', '2464-4617']
DOI: https://doi.org/10.24132/csrn.2021.3101.28