Xử lý ảnh trong cơ điện tử: Machine Vision. Chapter 1. Introduction to machine vision93

TRƯỜNG ĐẠI HỌC BÁCH KHOA XỬ LÝ ẢNH TRONG CƠ ĐIỆN Machine Vision Giảng viên: TS Nguyễn Thành Hùn Đơn vị: Bộ môn Cơ điện tử, Viện Cơ Hà Nội, 2021 Chapter Introduction to machin Introduction Basic elements of machine vision system Classification Phân đoạn ảnh Technical specifications Designing a Machine Vision System Introduction ❖Definition ➢ Machine vision (MV) is the technology and methods used to based automatic inspection and analysis for such applications as inspection, process control, and robot guidance, usually in indus ➢ Machine vision is a term encompassing a large number of tec software and hardware products, integrated systems, actions, me expertise ➢ Machine vision as a systems engineering discipline can be cons from computer vision, a form of computer science ➢ It attempts to integrate existing technologies in new ways and a solve real world problems Introduction ❖Definition ➢ The overall machine vision process includes planning the detail requirements and project, and then creating a solution During r process starts with imaging, followed by automated analysis of extraction of the required information Introduction ❖Definition https://en.wikipedia.org/wiki/Glossary_of_machine_vision Introduction ❖Application: Locate ➢ To find the object and report its position and orientation Introduction ❖Application: Measure ➢ To measure physical dimensions of the object Introduction ❖Application: Inspect ➢ To validate certain features Introduction ❖Application: Inspect Introduction ❖Application: Identify Designing a Machine Vision S 5.1 Camera Type 5.2 Field of View 5.3 Resolution 5.4 Choice of Camera, Frame Grabber, and Hardw 5.5 Lens Design 5.6 Choice of Illumination 5.7 Mechanical Design 5.8 Electrical Design 5.9 Software 5.10 Costs Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S ❑ 5.8 Electrical Design ➢ The power supply ➢ The housing of cameras and illumination ➢ The length of cables as well as their laying Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S 5.1 Camera Type 5.2 Field of View 5.3 Resolution 5.4 Choice of Camera, Frame Grabber, and Hardw 5.5 Lens Design 5.6 Choice of Illumination 5.7 Mechanical Design 5.8 Electrical Design 5.9 Software 5.10 Costs Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S ❑ 5.9 Software ➢ selection of a software library ➢ design and implementation of the application-specific software Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S ❑ 5.9 Software ➢ Software Library ➢ Software Structure ▪ Image acquisition ▪ Preprocessing ▪ Feature localization ▪ Feature extraction ▪ Feature interpretation ▪ Generation of results ▪ Handling interfaces Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S ❑ 5.9 Software ➢ General Topics ▪ Visualization of live images for all cameras ▪ Possibility of image saving ▪ Maintenance modus ▪ Log files for the system state ▪ Detailed visualization of the image processing ▪ Crucial processing parameters Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S 5.1 Camera Type 5.2 Field of View 5.3 Resolution 5.4 Choice of Camera, Frame Grabber, and Hardw 5.5 Lens Design 5.6 Choice of Illumination 5.7 Mechanical Design 5.8 Electrical Design 5.9 Software 5.10 Costs Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S ❑ 5.10 Costs ➢ The development costs ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ project management base design hardware components software licenses software development installation test runs, feasibility tests, and acceptance test training documentation Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Designing a Machine Vision S ❑ 5.10 Costs ➢ The operating costs ▪ maintenance, such as cleaning of the optical equipment ▪ change of equipment, such as lamps ▪ utility, for instance electrical power or compressed air if needed ▪ costs for system modification due to product changes Alexander Hornberg, “Handbook of Machine Vision,” WILEY-VCH, Weinheim, 2006 Qu Quiz iz Quiz Number Question Example Answer Feedback Quiz Type OX Choose the lighting for measuring the radius object: A Dome Light C Darkfield B On-Axis Light D Backlight Qu Quiz iz Quiz Number Quiz Type OX Question Assume that the object size = 10 cm x 20 cm 640x480 pixels Calculate the object resolu Example A 0.31 mm/pixel B.0.21 mm/pixel C 0.17 m mm/pixel Answer Feedback Qu Quiz iz Quiz Number Quiz Type OX Question Splitting an input image into component area Example A Image preprocessing C Image recognition Answer Feedback B Image segmen D Image represe Qu Quiz iz Quiz Number Quiz Type OX Question The performance requirements of a machine Example A Accuracy C Both A and B Answer Feedback B Time performance D None of the above Qu Quiz iz Quiz Number Question Quiz Type OX Diameter Inspection of Rivets: + The nominal size of the rivets lies in a ran + The required accuracy is 0.1 mm + The tolerance of part positioning is less th optical axis and ±0.1 mm in the direction of belt stops for 1.5 s + The maximum processing time is s; the c + The maximum space for installing equipm Qu Quiz iz Quiz Number Question Quiz Type OX Bearing with .. .Chapter Introduction to machin Introduction Basic elements of machine vision system Classification Phân đoạn ảnh Technical specifications Designing a Machine Vision System Introduction. .. Identify Chapter Introduction to machin Introduction Basic elements of machine vision system Classification Technical specifications Designing a Machine Vision System Basic elements of machine visio... orientation 1 Introduction ❖Application: Measure ➢ To measure physical dimensions of the object Introduction ❖Application: Inspect ➢ To validate certain features Introduction ❖Application: Inspect Introduction