Bangor detectives intend to review security surveillance tapes taken from the Oct. 10 burglary of the Quality Jewelry store in an effort to get a better image of the man who broke into the Exchange Street business. So far video pictures from the surveillance camera have not been clear enough, so detectives will use in-house equipment to improve the images, Detective Sgt. Paul Kenison said Monday. “Our goal is to clean up the video,” he said. Investigators have said that a man with a backpack broke into the store, smashed and cleaned out three display cases and fled. Damage to the front door and cases was estimated at $1,600, Kenison said. The retail value of the items taken amounted to tens of thousands of dollars, according to police. The store’s owner has said that customer jewelry and higher-end jewelry was secured in two safes at the time of the burglary. Anyone with information may contact the Bangor Police Department at 947-7384.