Title :
A PCB Component Location Method Based on Image Hashing
Author :
Longjiang, Yu ; Ying, Yang ; Shenghe, Sun
Author_Institution :
Harbin Inst. of Technol., Harbin
Abstract :
A novel method based on image hashing is proposed to locate the acquired component from a CCD DSC camera in this paper. Image hash is extracted resistant to geometric distortions. The extracted hash is used to identify the component and related defects including missing component, mistake component, inverse orientation. The proposed method is verified by experimental results.
Keywords :
CCD image sensors; automatic optical inspection; geometry; image processing; CCD DSC camera; PCB component location method; automatic optical inspection; geometric distortions; image hashing; inverse orientation; mistake component; Automatic optical inspection; Automatic testing; Character recognition; Digital signatures; Electronic equipment testing; Instruments; Optical character recognition software; Optical distortion; Robustness; System testing; Automatic optical inspection; component location; image hashing; optical character recognition;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4350777
