Comprehensive Analysis of Filtering Algorithms in Machine Vision: Characteristics, Principles, and Applications
In machine vision systems, image quality directly affects the accuracy and reliability of subsequent processing tasks. During image acquisition, transmission, and storage, images inevitably suffer from various types of noise contamination, including sensor thermal noise, quantization noise, and transmission interference. These noise sources severely degrade image quality and impact the performance of critical algorithms such as feature extraction, object recognition, and edge detection. Image filtering, as a core technology in machine vision preprocessing, aims to suppress noise while preserving useful information in images, such as edges, textures, corner points, and other important features.