A fusion method of a close-range hyperspectral camera and a distance measuring sensor
A technology of ranging sensor and fusion method, which is applied in the field of hyperspectral imaging technology and three-dimensional reconstruction, can solve problems that need to be further improved, and achieve the effect of improving accuracy
Active Publication Date: 2018-12-25
SOUTH CHINA AGRI UNIV
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Problems solved by technology
[0006] However, the imaging resolution and accuracy of the hyperspectral 3D model technology in the existing technology needs to be further improved.
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[0053] like figure 1 As shown, in this embodiment, a fusion method of a short-range hyperspectral camera and a range-finding sensor includes a specific fusion implementation of a Middleton MSV 100V10 short-range hyperspectral camera and a Microsoft Kinect V2 range-finding sensor. The sensor mounting bracket and the three-dimensional checkerboard for hyperspectral camera calibration are designed; the external computer is used to collect two kinds of sensor information at the same time and convert the two kinds of sensor information into a unified system coordinate system to establish the relationship between the sensors. Correlation; establish a fusion model with the help of a line push-broom hyperspectral camera model and solve it with the help of the DLT (direct linear transformation) method; finally use soybean leaves as test objects for verification. The method of the invention designs a three-dimensional checkerboard and adopts an average method multiple times, which can a...
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The invention discloses a fusion method of a short-range hyperspectral camera and a ranging sensor, in particular comprising the following steps: S1, designing a sensor mounting bracket and mounting the hyperspectral camera and the ranging sensor; S2, designing a stereo calibration checkerboard to make the reference points have different depth information; 3, simultaneously collecting that information of the hyperspectral camera and the ranging sensor by an external compute, wherein the stereoscopic checkerboard is in a static state when the information of the ranging sensor is collected; S4,the measurement information of the hyperspectral camera and the ranging sensor being unified into a system coordinate system, and the correlation between the sensors being established; S5, based on the calibration model of line push-sweep hyperspectral camera, the fusion model of hyperspectral camera and ranging sensor being established and solved by direct linear transformation DLT method. The method has higher resolution and accuracy, and fuses the spectral information and the spatial information, thus providing the possibility for building a three-dimensional spectral model.
Description
technical field [0001] The invention belongs to the technical field of hyperspectral imaging technology and three-dimensional reconstruction, and in particular relates to a fusion method of a short-distance hyperspectral camera and a ranging sensor. Background technique [0002] With the development of science and technology and the continuous deepening of people's cognition of things, the research of modern agricultural development needs more and more information. However, due to the polymorphism and complexity of plants, the two-dimensional images of plants taken by traditional methods can no longer meet the needs of research. Obtaining a large amount of plant spectral information dynamically through hyperspectral imaging technology and visually presenting the 3D model of plants through 3D reconstruction technology have become more and more research hotspots. [0003] Among them, hyperspectral imaging technology is currently applied in the fields of agricultural remote se...
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Login to View More IPC IPC(8): G06T7/33G06T7/80G06T17/20
CPCG06T7/344G06T7/85G06T17/20G06T2207/10036G06T2207/10012
Inventor 张智刚黄培奎罗锡文张健何杰刘兆朋王辉岳斌斌高维炜林志健
Owner SOUTH CHINA AGRI UNIV