I have the following sentence.
In the reconstruction, setting a stable parameter matching with
entire scene is hard to achieve.
According to my understanding, the subject is ‘setting a stable parameter‘. Do you think it is possible to use a phrase as a subject instead of one single word? Is my sentence correct?
There are a couple minor mistakes you have made other than that, though.
For instance, I would write “In the reconstruction, setting a stable parameter that matches the entire scene is hard to achieve.” or “an entire scene”.
Also, you mean “understanding” and not “undemanding”.
You have the right idea!