Reciprocating boundary retrieval method for searching FPI response center point and verification method thereof
A center point, reciprocating technology, applied in the field of hyperspectral imaging, can solve the problems of low boundary retrieval efficiency and large error of FPI response center, and achieve the effect of improving calibration and testing speed, improving accuracy, and shortening search time
Active Publication Date: 2021-11-12
SHEN ZHEN HYPERNANO OPTICS TECH CO LTD
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[0006] In order to solve the existing problems of large errors and low boundary retrieval efficiency in finding the FPI response center, the application provides a reciprocating boundary retrieval method and a verification method for finding the FPI response center point, to solve the problem of finding the FPI boundary point and responding Technical defects in the central point
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[0049] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and which show by way of illustration specific embodiments in which the application may be practiced. In this regard, directional terms such as "top", "bottom", "left", "right", "upper", "lower", etc. are used with reference to the orientation of the figures being described. Because components of an embodiment may be positioned in several different orientations, directional terminology is used for purposes of illustration and is by no means limiting. It is to be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. The following detailed description should therefore not be taken in a limiting sense, and the scope of the application is defined by the appended claims.
[0050] figure 1 It shows that the embodiment of the application discloses a schematic flow diagram of a ...
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The invention provides a reciprocating boundary retrieval method for searching an FPI response center point and a verification method thereof. According to the method, an XY sliding table data calibration system is used for detecting an FPI response circular chip fixed to a test platform, and the XY sliding table calibration system comprises a motor, an XY sliding table and spectrum collection equipment; the spectrum acquisition equipment operates and scans from the outside of the response range of the FPI response circular chip to the inside of the response range of the FPI response circular chip according to a first stepping value to obtain a spectrum intensity value of each acquisition point; and a first boundary interval is determined in response to the change of the spectral intensity values of the two adjacent acquisition points from being smaller than the preset spectrum intensity threshold value to being larger than the preset spectrum intensity threshold value. According to the method, reciprocating boundary retrieval is carried out by utilizing the thought of a multi-division method, so that the round-trip distance of the spectrum acquisition equipment can be reduced, the time for searching the boundary points is greatly shortened, the accuracy of the retrieved boundary points is improved, the calibration or test speed of a hyperspectral platform is improved, and rapid production change is realized.
Description
technical field [0001] The present application belongs to the technical field of hyperspectral imaging, and in particular relates to a reciprocating boundary retrieval method for finding the FPI response center point and a verification method thereof. Background technique [0002] The FPI response circular chip used in the field of hyperspectral images usually needs to calibrate its parameters such as transmittance and reflectance. To perform spectral analysis on each point on the chip, it is necessary to find a reference point for data testing and calibration. [0003] Prior to this, the judgment of the FPI boundary point and center point was estimated by the inspector by visual inspection, and the coordinate value of the XY slide table was adjusted step by step. By observing the spectrum curve graph of the spectrum acquisition device at each coordinate point, it was judged whether to enter the FPI response In the circular chip, the coordinate value of the boundary point is...
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IPC IPC(8): G06T7/80
CPCG06T7/80G06T2207/30148
Inventor 黄锦标郭斌
Owner SHEN ZHEN HYPERNANO OPTICS TECH CO LTD