# Image Formation

The pages in this section provide background on the physical processes that occur in the microscope to generate and detect an image.

{% content-ref url="image-formation/contrast-in-cryo-em" %}
[contrast-in-cryo-em](https://guide.cryosparc.com/cryo-em-foundations/image-formation/contrast-in-cryo-em)
{% endcontent-ref %}

{% content-ref url="image-formation/waves-as-vectors" %}
[waves-as-vectors](https://guide.cryosparc.com/cryo-em-foundations/image-formation/waves-as-vectors)
{% endcontent-ref %}

{% content-ref url="image-formation/aliasing" %}
[aliasing](https://guide.cryosparc.com/cryo-em-foundations/image-formation/aliasing)
{% endcontent-ref %}