Depth Map
A depth map is a 2D image or data structure where each pixel value represents the distance from a viewpoint to objects in a scene, typically measured in meters or arbitrary units. It encodes spatial information about the 3D geometry of a scene, often used in computer vision, computer graphics, and robotics to understand depth and layout. Depth maps are fundamental for tasks like 3D reconstruction, augmented reality, and autonomous navigation.
Developers should learn about depth maps when working on applications that require 3D scene understanding, such as in augmented reality (AR) to overlay virtual objects realistically, in robotics for obstacle avoidance, or in computer vision for object detection and segmentation. They are essential for generating stereoscopic effects in VR, enhancing image processing with depth-aware filters, and improving accuracy in machine learning models that rely on spatial data.