I am new in Remote sensing and studying about Optical Remote sensing images.
I found a research article, "Learning Rotation-Invariant Convolutional Neural Networks for Object Detection in VHR Optical Remote Sensing Images", that is recognizing the objects in optical remote sensing images. They have used NWPU VHR-10 data set and its color images.
Therefore I started to check about the Optical Remote sensing images and I found this link. But in that link they didn't say anything about the color images or they have some different name (Multispectral imaging system, Panchromatic imaging system, and Superspectral Imaging Systems).
The color images used in this paper are Multispectral imaging system OR Panchromatic imaging system OR Superspectral Imaging Systems?