Some questiones about split the image

Hi, I'm interested in your project. I wondered why you split the image into right side and left side, does the right image is a whole fisheye image or just a half of fisheye image?
您好, 这是一个很有意思的项目,我想知道为什么要将图像分成左右两个部分, 左右两个部分都是独立的鱼眼图像吗?还是说分割后的左半部分只是一幅鱼眼图像的一半?
