contrast modulation

Contrast modulation is a technique used in imaging—like MRI or ultrasound—to improve the visibility of structures. It involves changing a specific property of the image signal, such as its brightness or frequency, in a controlled pattern. These changes create a pattern of varying contrast that, when processed, enhances details and helps distinguish different tissues or features more clearly. Essentially, contrast modulation manipulates how the image's information varies, making important structures stand out better for diagnosis or analysis.