Altum agricultural multispectral camera near-ground channel registration method

Yanmin Shuai; Meng Dai

doi:10.1117/12.2657099

18 October 2022 Altum agricultural multispectral camera near-ground channel registration method

Yanmin Shuai, Meng Dai

Proceedings Volume 12349, International Conference on Agri-Photonics and Smart Agricultural Sensing Technologies (ICASAST 2022); 123490O (2022) https://doi.org/10.1117/12.2657099
Event: International Conference on Agri-Photonics and Smart Agricultural Sensing Technologies (ICASAST 2022), 2022, Zhengzhou, China

Abstract

In the agriculture sector, multispectral camera near-ground observations are currently in demand. Altum multispectral camera is a new type of agricultural multispectral camera, which can be installed on ground observation equipment to obtain near-ground remote sensing images with high resolution and multispectral information. However, the optical system of the Altum camera adopts a multi-lens beam splitting design, and the channel registration problem used near-ground remains to be solved. Therefore, a near-ground image registration method is proposed based on a combination of a channel transformation model and a mapping relationship of the homologous image points. The way first corrects the internal lens parameters using the distortion coefficient of each lens. It then constructs a channel transformation model in the pixel coordinate system based on the transformation relationship between the camera coordinate system and the pixel coordinate system. The following calculates the transformation parameters from the corrected internal parameters and the relative position parameters between the lenses to complete the channel transformation. Finally, the homography model is estimated according to the mapping relationship of the homologous image points to perform inter-channel fine registration. The results show that the error in each band after registration is less than 0.5 pixels when the observation distance is greater than 7 metres. The method can offer a pre-processing service for channel registration for the Altum multispectral camera near-ground applications.

Citation Download Citation

Yanmin Shuai and Meng Dai "Altum agricultural multispectral camera near-ground channel registration method", Proc. SPIE 12349, International Conference on Agri-Photonics and Smart Agricultural Sensing Technologies (ICASAST 2022), 123490O (18 October 2022); https://doi.org/10.1117/12.2657099

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Cameras

Image registration

Imaging systems

Agriculture

Distortion

Error analysis

Calibration

Show All Keywords

Keywords/Phrases

Search In:

Publication Years