Calibration method and system of multi-spectrum collecting system

A multi-spectral acquisition and calibration method technology, applied in spectrometry/spectrophotometry/monochromator, spectrum survey, optical radiometry, etc. The effect of collection

Active Publication Date: 2015-04-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned works all adopt the method of dual-channel acquisition, which can better collect and preliminarily calibrate the multi-spectral video information, but it still lacks an accurate spatial geometry calibration and spectral calibration method.

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  • Calibration method and system of multi-spectrum collecting system
  • Calibration method and system of multi-spectrum collecting system
  • Calibration method and system of multi-spectrum collecting system

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0034] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The present invention proposes a calibration method for a multi-spectral acquisition system, comprising the following steps: collecting scene information under a standard light source through a dual-channel multi-spectral acquisition system to obtain a dual-channel multi-spectral image; Spectral information, spectral characteristics of the standard light source and optical path characteristics of the multi-spectral acquisition system are used to calibrate the spectrum of the sampling point; two scanning videos in different scanning directions are provided and demonstrated through the calibration video demonstration device. According to the two scanning videos taken, the matching points of the sampling points are obtained to complete the spatial position calibration of the sampling points. The invention can accurately calibrate the spectrum of the two-way multi-spectrum acquisition system, accurately align and match the spatial positions of the two-way acquisition images, so that the two-way multi-spectrum acquisition system can effectively collect spectral images. The invention also proposes a calibration system of the multi-spectral acquisition system.

Description

technical field [0001] The invention relates to the technical fields of spectral calculation and computational imaging, in particular to a calibration method and system for a multi-spectral acquisition system. Background technique [0002] With the rapid development of sensing imaging technology, computer graphics, computer vision and digital media processing technology, a new discipline with computational acquisition and reconstruction technology as the core - computational photography has gradually formed. Computational photography combines computer technologies such as computer graphics and computer vision with modern sensors and modern optics to achieve the purpose of improving and enhancing the capabilities of digital photography and obtaining images and videos that traditional photography techniques cannot obtain. In recent years, computational photography, as a fast-growing emerging interdisciplinary subject, has become an international frontier research hotspot. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
CPCG01J3/28H04N2209/048G01J3/2823H04N17/002G01J2003/2826
Inventor 戴琼海张明捷索津莉
Owner TSINGHUA UNIV
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