"Machine vision" in automation refers to the use of computer vision technologies that allow machines to interpret visual information from the environment. It involves the acquisition, processing, and analysis of images through cameras and sensors, enabling automated systems to perform tasks like quality inspection, guidance for robotic arms, and object recognition. By mimicking human sight, machine vision enhances efficiency in manufacturing, logistics, and other sectors by enabling real-time decision-making and reducing human error, ultimately improving productivity and quality control.