Description: Spatial context in augmented reality refers to the physical environment surrounding the user and how it influences the interaction with overlaid virtual elements. This context includes characteristics such as lighting, spatial geometry, object placement, and the arrangement of the environment. Understanding spatial context is crucial for creating effective augmented reality experiences, as it allows virtual elements to be integrated coherently and realistically into the physical world. For example, an augmented reality system that recognizes the shape and size of a room can place a virtual piece of furniture in a specific location, making it appear as if it is truly there. Additionally, spatial context also encompasses user perception, which can be affected by factors such as distance, viewing angle, and perspective. In summary, spatial context is an essential component that determines how users experience and interact with augmented reality, ensuring that interactions are intuitive and meaningful.
History: The concept of spatial context in augmented reality has evolved since the early experiments in the 1960s when Ivan Sutherland developed the first known augmented reality system called ‘The Sword of Damocles’. As technology advanced, more sophisticated ways of integrating virtual elements into physical environments were explored, leading to the development of augmented reality glasses and mobile applications. In the 2000s, the rise of smartphones and the development of localization and 3D mapping technologies allowed for a greater understanding and application of spatial context in augmented reality experiences.
Uses: Spatial context is used in various augmented reality applications, such as in education, where users can interact with 3D models of complex structures in their real environment. It is also applied in interior design, allowing users to visualize how a piece of furniture would look in their home before making a purchase. In the entertainment industry, augmented reality games use spatial context to create immersive experiences that respond to the physical layout of the user’s environment.
Examples: An example of using spatial context is the IKEA Place app, which allows users to place virtual furniture in their home through their smartphone camera, adjusting to the dimensions and characteristics of the space. Another case is Pokémon GO, which uses spatial context to overlay virtual creatures in real-world locations, making players interact with their physical environment while searching for Pokémon.
