Information fusion is the process of integrating data from multiple sources to produce more accurate and comprehensive information. This technique combines various types of data, such as images, text, and sensor readings, to enhance decision-making and improve understanding of complex situations. By merging information, information fusion helps reduce uncertainty and provides a clearer picture of reality. It is widely used in fields like military operations, robotics, and healthcare, where timely and precise information is crucial for effective responses and strategies.