on consumers Technology enabling gallery owners to track the movements of visitors walking around paintings is starting to interest major grocery retailers, according to the European retail think tank L'changeur. Several have expressed interest in adapting the technology to track customer movements instore via a series of overhead cameras, gathering information about where shoppers linger, where they walk briskly and which areas of the store they avoid altogether. The system can track groups and individuals and has been successfully used in France by town planners as a predictive tool to design traffic systems. L'changeur's project head for technology platforms Guillaume Rio said retailers could compare the tracking data with sales data to evaluate how effectively they are using their space to drive sales. {{NEWS }}