Extrinsic parameters refer to the external factors that define the position and orientation of a camera or sensor in relation to a specific scene or object. These parameters include translation and rotation, which help to establish how the camera is situated in three-dimensional space. Understanding extrinsic parameters is crucial for accurately mapping the real world into a two-dimensional image. In the context of computer vision and robotics, extrinsic parameters are essential for tasks such as 3D reconstruction and object recognition. They allow systems to interpret spatial relationships and navigate environments effectively. By knowing the extrinsic parameters, machines can better understand their surroundings and interact with them.