원문정보
한국정보기술응용학회
한국정보기술응용학회 학술대회
2005년도 6th 2005 International Conference on Computers, Communications and System
2005.11
pp.65-68
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
In this paper, an algorithm to extract bar-space area is suggested. In a section of bar-code space area the threshold value is computed, and bar and space are extracted according to threshold value. PDF417 is used everyday life and printed in many different materials. The printed PDF417 is especially influenced by various light source. The decision of bar and space is very hard under the change of illumination. The fixed threshold value to distinguish the bar and space can not be applied. in these cases, The proposed algorithm is developed to investigate variable threshold. The variable threshold can be obtained by simple calculation.
목차
Abstract
1. Introduction
2. Symbol structure of PDF-417
3. PDF-417 two-dimensional bar code reading
3.1. Extraction of Bar-code Region
3.2. Extraction of Dimension
3.3. Extraction of variable Threshold Value
4. Test result
5. Conclusions
References
1. Introduction
2. Symbol structure of PDF-417
3. PDF-417 two-dimensional bar code reading
3.1. Extraction of Bar-code Region
3.2. Extraction of Dimension
3.3. Extraction of variable Threshold Value
4. Test result
5. Conclusions
References
저자정보
참고문헌
자료제공 : 네이버학술정보