Did anyone know why the model is only based on the component

Hallo,I just find out even i take like 80 pictures but the model only based on the component to build .The component is always only like half of my whole pictures and it lose some data sometimes even i add the control point.Did anyone know how should i fix this problem?

Hi giraffe_zhou,
the alignment depends on the way how the images are captured. If there is a good overlap, then all images will be aligned in one component. You can also help yourself using control points (you need to use minimally three control points placed on minimally three images). In your case they need to be placed over all components you want to merge.