An approach to the feature-based comparisons for the rational curves

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Aphirukmatakun C., Dejdumrong N.

ผู้เผยแพร่: Hindawi

ปีที่เผยแพร่ (ค.ศ.): 2008

หน้าแรก: 115

หน้าสุดท้าย: 120

จำนวนหน้า: 6

ISBN: 0769533590; 9780769533599

นอก: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-55349092694&doi=10.1109%2fCGIV.2008.60&partnerID=40&md5=4be8e8568c8963c0bf7893f0cb0c7c07

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

In image processing, the curve comparisons can be achieved by extracting the curve information from the bitmapped images. The revealed curves are represented in the forms of the sets of pixel information. Thus, the determination of curve matching is to compare pixel by pixel, which is time consuming. On the contrary, for vector graphics images, there have been no methods written in the literatures referred about directly comparing the parametric curves either in the rational or non-rational (polynomial) forms. In this paper, the relationships between two curves can be classified into 4 main categories: Curve Congruence, Curve Proportion, Curve Similarity and Curve Difference. The comparison algorithms for two given parametric curves either non-rational or rational curves are then established. These algorithms can be simply determined by verifying some important geometric features, e.g., the blending functions, the locations of their control points and their weights. In this connection, since a rational curve can be transformed into a non-rational one, the curve comparison algorithms for polynomial curves can also be applied for the cases of the rational curves. ฉ 2008 IEEE.

คำสำคัญ

Curve Comparisons, Polynomial Curves, Rational Curves