Slide to Power Off IOS7

I recently upgrade my and my wife's phones to IOS7 and now my wife's phone keeps bringing up the "Slide to Power Off" Screen at random and repeatedly. The top botton is in no way pushed in yet it just keeps popping up. Additionally, now the screen will start flashing in and out. I've back up the phone but am concerned about losing all the pictures and things on there if I erase everything and set it up as a new iphone.

Has anyone had this problem and found a way to correct it? I'm worried there may be some corrupted data causing the issue.