You will definitely here about visualization in the category of "Inspirational Christianity".
Norman Vincent Peal and Joel Osteen are the first two that come to mind. They do back visualization with scripture as well. (Inspirational Christianity pastors get a lot of heat becuase they skip the suffering parts of the Jesus, but nevertheless, their points are still valid when it comes to this).
From Peals Book, The Power of Positive Thinking:
One of the most powerful concepts, one which is a sure cure for lack
of confidence, is the thought that God is actually with you and
helping you. This is one of the simplest teachings in religion,
namely, that Almighty God will be your companion, will stand by you,
help you, and see you through. No other idea is so powerful in
developing self-confidence as this simple belief when practiced. To
practice it simply affirm "God is with me; God is helping me; God is
guiding me." Spend several minutes each day visualizing His presence.
Then practice believing that affirmation. Go about your business on
the assumption that what you have affirmed and visualized is true.
Affirm it, visualize it, believe it, and it will actualize itself. The
release of power which this procedure stimulates will astonish you.
..
The minister saw that the woman had more talent, ability, and charm
than she was revealing. He suggested that she create an image or
picture of herself as capable and attractive. He whimsically told her
that "God runs a beauty parlor" and that faith techniques could put
beauty on a person’s face and charm and ease in her manner. He gave
her instruction in how to pray and how spiritually to "picturize." He
also advised her to hold a mental image of the restoration of the
old-time companionship, to visualize the goodness in her husband, and
to picture a restored harmony between the two of them. She was to hold
this picture with faith. In this manner he prepared her for a most
interesting personal victory.
Joel Osteen:
Your imagination is extremely powerful! God created you as a visual
being. Choosing the right images in your mind’s eye is important
because your life will move in the direction of your thoughts.
Visualization is simply seeing yourself the way you want to be. It’s
creating a picture in your mind of you accomplishing your goals,
overcoming obstacles, and fulfilling your God-given destiny. The Bible
says in Proverbs that “as a man thinks in his heart, so is he.” The
way you see yourself in your mind’s eye, over time, will drop down
into your heart. If you’ll create a picture in your imagination of
something you want or a dream coming to pass and keep it in front of
you, then you will move in that direction. Get up every morning and
picture yourself succeeding! Picture yourself healthy and whole!
Picture yourself and your family not only being blessed, but being a
bigger blessing to others. If you’ll keep the right images in front of
you and always submit them to the Lord through prayer and
thanksgiving, God promises that nothing will be impossible to you!
