Title :
Using FHT to determine digital straight line chain codes
Author :
Chau-Yun Hsu ; Jie-Cherg Liu
Author_Institution :
Dept. of Electr. Eng., Tatung Inst. of Technol., Taipei, Taiwan
Abstract :
A novel application of the fast Hartley transform is proposed. Using the FHT, the straightness of a digital arc can be determined from the periodicity of its chain codes. Further results for the new approach in four of Lee´s examples demonstrate that the new application is promising.
Keywords :
codes; transforms; Lee´s examples; digital arc; digital straight line chain codes; fast Hartley transform; periodicity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19891092
