Mechanical engineering is the study of physical machines involving force and motion. It is a branch of engineering that combines the principles of engineering physics and mathematics with materials science to design, analyze, manufacture, and maintain mechanical systems. Over the past few decades, advances in mechanical engineering have Advances in mechanical engineering have led to visual measurement methods in optical metrology.
In the past decades, advances in mechanical engineering have led to the development of time-of-flight methods, stereo vision, structured light vision, fringe projection, depth structured light vision, fringe projection techniques, depth of focus depth from focus, photometric stereo, and digital image correlation. With advantages such as non-contact, non-destructive, highly accurate, automatic, and fast, visual measurement methods play an important role in reverse engineering, on-line inspection, dimensional analysis, quality assurance, sorting, material handling, and optical measurement.
This special issue of the Journal aims to collect basic theory, key techniques, and application pa person the latest results in geometric vision measurement, to present the latest developments, and to provide guidance for future research directions. There are five papers on structured optical vision techniques: B. Wu and B.
Wang et al. discussed a method for pipe defect detection based on internal 3Dpointsacquiredbya circle structured optical vision system; R. Maraniet al. presented a high-resolution laser scanning vision system for drilling tool inspection; B. Wu and B. Wan get al. presented a method for detecting pipe defects based on internal 3D points acquired by a circle structured optical vision system; and R. Maraniet al. presented a high-resolution laser scanning vision system for hole drilling tool inspection.
Apart from the structured optical vision method, there are also four paper methods for large spaces and large work pieces (devices) that combine laser theodolite measurement technology and vision guide technology.
Four papers for large spaces and large work pieces (devices) that combine the two are also included in this special issue. We hope that this special issue will provide readers with the latest development sin geometric image measurement in mechanical engineering.