西北大学学报(自然科学版)
西北大學學報(自然科學版)
서북대학학보(자연과학판)
JOURNAL OF NORTHWEST UNIVERSITY(NATURAL SCIENCE EDITION)
2010年
1期
73-75
,共3页
祝轩%张申华%王蕾%雷文娟
祝軒%張申華%王蕾%雷文娟
축헌%장신화%왕뢰%뢰문연
图像放大%非线性扩散%边缘增强%曲率运动
圖像放大%非線性擴散%邊緣增彊%麯率運動
도상방대%비선성확산%변연증강%곡솔운동
image zooming%nonlinear diffusion%edge-enhancement%curvature motion
目的 研究图像放大的非线性偏微分方程方法.方法 基于线性偏微分图像放大方法的初边值条件,提出将具有曲率运动和边缘增强双重功能的非线性偏微分平滑去噪self-snake模型用于图像放大.结果 实验证明具有曲率运动、边缘冲击特性和平滑去噪性能的非线性self-snake模型适合于放大图像,拓宽了非线性偏微分方法在图像放大领域的方法研究和应用范围.结论 相对于线性偏微分方法self-snake模型是一种行之有效且好的非线性偏微分图像放大方法.
目的 研究圖像放大的非線性偏微分方程方法.方法 基于線性偏微分圖像放大方法的初邊值條件,提齣將具有麯率運動和邊緣增彊雙重功能的非線性偏微分平滑去譟self-snake模型用于圖像放大.結果 實驗證明具有麯率運動、邊緣遲擊特性和平滑去譟性能的非線性self-snake模型適閤于放大圖像,拓寬瞭非線性偏微分方法在圖像放大領域的方法研究和應用範圍.結論 相對于線性偏微分方法self-snake模型是一種行之有效且好的非線性偏微分圖像放大方法.
목적 연구도상방대적비선성편미분방정방법.방법 기우선성편미분도상방대방법적초변치조건,제출장구유곡솔운동화변연증강쌍중공능적비선성편미분평활거조self-snake모형용우도상방대.결과 실험증명구유곡솔운동、변연충격특성화평활거조성능적비선성self-snake모형괄합우방대도상,탁관료비선성편미분방법재도상방대영역적방법연구화응용범위.결론 상대우선성편미분방법self-snake모형시일충행지유효차호적비선성편미분도상방대방법.
Aim To study image zooming on partial differential equation (PDE) method. Methods On the condition of the initial and boundary value of image zooming based on Linear PDE , the nonlinear self-snake model which has dual function of curvature motion and edge-enhancement is proposed and applied to image zooming. Results It was proved by the experiments that the nonlinear self-snake model can zoom image. The research of method and range of application is expanded in image zooming. Conclusion The self-snake method exhibits better performance in zooming image.