La visión estéreo, también conocida como estereopsis, es una visión perception mechanism that allows individuals to perceive depth and three-dimensional (3D) structures by integrating two slightly different images from each eye. This phenomenon occurs because human eyes are spaced apart, causing each eye to view an object from a different angle. The brain processes these two images and combines them to create a single, cohesive view, enabling depth perception.
La distancia entre los ojos, generalmente unos 6.5 centímetros (2.5 pulgadas) en adultos, juega un papel crucial en la visión estereoscópica. El cerebro utiliza la disparidad entre las imágenes (las diferencias en la posición de un objeto visto por cada ojo) para medir la distancia. Este proceso se conoce como disparidad binocular. Cuanto mayor sea la disparidad, más cerca parecerá el objeto, mientras que una disparidad mínima sugiere que el objeto está más lejos.
Stereo vision is essential for various daily activities, such as driving, playing sports, and navigating through environments. It enhances our ability to judge distances accurately and interact with the world around us. In the campo de la inteligencia artificial and computer vision, stereo vision is a significant area of research, focusing on how machines can replicate this human capability. Techniques such as stereo matching and estimación de profundidad are employed to allow computers to interpret spatial information from two-dimensional images similarly to human vision.
In addition to its application in robotics and AI, stereo vision technology is also used in various industries, including virtual reality (VR), realidad aumentada (AR), and 3D movie production, where creating a convincing sense of depth is crucial for immersive experiences.