템플릿 기반 정합 기법을 이용한 디지털X-ray 영상의 고속 스티칭 기법Rapid Stitching Method of Digital X-ray Images Using Template-based Registration
- Other Titles
- Rapid Stitching Method of Digital X-ray Images Using Template-based Registration
- Authors
- 조현지; 계희원; 이정진
- Issue Date
- Jun-2015
- Publisher
- 한국멀티미디어학회
- Keywords
- Image Stitching; Template-based Registration; Principal Component Analysis; Image Blending
- Citation
- 멀티미디어학회논문지, v.18, no.6, pp.701 - 709
- Journal Title
- 멀티미디어학회논문지
- Volume
- 18
- Number
- 6
- Start Page
- 701
- End Page
- 709
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/9069
- DOI
- 10.9717/kmms.2015.18.6.701
- ISSN
- 1229-7771
- Abstract
- Image stitching method is a technique for obtaining an high-resolution image by combining two or more images. In X-ray image for clinical diagnosis, the size of the imaging region taken by one shot is limited due to the field-of-view of the equipment. Therefore, in order to obtain a high-resolution image including large regions such as a whole body, the synthesis of multiple X-ray images is required. In this paper, we propose a rapid stitching method of digital X-ray images using template-based registration.
The proposed algorithm use principal component analysis(PCA) and k-nearest neighborhood(k-NN) to determine the location of input images before performing a template-based matching. After detecting the overlapping position using template-based matching, we synthesize input images by alpha blending.
To improve the computational efficiency, reduced images are used for PCA and k-NN analysis.
Experimental results showed that our method was more accurate comparing with the previous method with the improvement of the registration speed. Our stitching method could be usefully applied into the stitching of 2D or 3D multiple images.
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