Description: A fiducial marker is a reference point in augmented reality used for tracking and placing virtual objects in the physical environment. These markers are visual patterns, such as QR codes or specific images, that augmented reality systems can recognize and track. When detected by a camera, fiducial markers allow augmented reality software to determine the position and orientation of the virtual object in relation to the real world. This is crucial for achieving precise and convincing integration of digital elements into the physical environment, enhancing the user experience. Fiducial markers are especially valued for their ability to provide a visual anchor that facilitates interaction between the user and digital content, allowing applications in various fields such as education, entertainment, and industry. Their use has become common in mobile applications and augmented reality systems, where accuracy and stability in the placement of virtual objects are essential for an immersive and effective experience.
History: The concept of fiducial markers dates back to the early days of augmented reality in the 1990s. One of the first systems to use fiducial markers was developed by Louis Rosenberg in 1992, known as ‘Virtual Fixtures’. Over the years, the technology has evolved, and markers have transitioned from simple patterns to more complex systems that allow for more precise and dynamic tracking.
Uses: Fiducial markers are used in a variety of applications, including education, where they allow users to interact with 3D models; in industry, for data visualization and training; and in entertainment, such as in augmented reality games that require precise placement of virtual objects in the real environment.
Examples: A practical example of a fiducial marker is the use of QR codes in augmented reality applications, where scanning the code brings up a 3D model or additional information about a product. Another example is the use of markers in architectural design applications, where architects can visualize models on the construction site.
