期刊文献+

细粒度亚像素圆模板算法

FINE GRANULARITY SUB-PIXEL CIRCLE TEMPLATE ALGORITHM
下载PDF
导出
摘要 旋转图像的质量和性能是需要权衡的一个问题,提出一种细粒度亚像素圆模板算法。通过像素网格状5x5分割选取圆模板的圆心。邻域像素被圆模板覆盖的面积与圆面积的比值Rs,相应像素的颜色值Cs,旋转后像素的颜色值等于Rs和Cs的卷积。实验表明该算法图像旋转质量好于最近邻点插值和高斯模板算法,清晰度和连续性接近双线性插值,计算性能明显优于双线性插值。 The quality and performance of spin image is a problem should to be balanced, a fine granularity sub-pixel circle template algorithm is proposed for this problem. The centre of the circle template is chosen by dividing the centre pixel into 5×5 meshes. Rotated pixel col- our value equals to the convolution of Rs and Cs, here Rs are the ratios of area of circle and areas of neighbourhood pixels covered by circle template, and Cs are the corresponding pixels colours. Experiments show that the quality of image rotation in proposed algorithm is better than that of nearest neighbourhood interpolation and Gaussian template algorithm, its definition and continuity near that of bilinear interpolation,its computation performance is clearly higher than that of bilinear interpolation.
作者 高成敏 陈良
出处 《计算机应用与软件》 CSCD 2009年第5期90-93,共4页 Computer Applications and Software
基金 广东省科技厅科研项目(2003C32401)
关键词 细粒度 圆模板 像素分割 亚像素 高斯模板 图像旋转 Fine granularity Circle template Pixel segmentation Sub-pixel Gaussian template Image rotation
  • 引文网络
  • 相关文献

参考文献9

  • 1Milazn Sonka,Vaclav Hlavac,Roger Boyle.图像处理、分析与机器视觉[M].人民邮电出版社,2003,9.
  • 2张显全,唐振军,于金辉.基于高斯模板的图象旋转算法[J].计算机工程与应用,2005,41(34):79-81. 被引量:6
  • 3刘松涛,周晓东,沈同圣.基于TMS320C6201的实时图像处理系统[J].计算机工程,2005,31(7):214-216. 被引量:9
  • 4Xin Li. New edge-directed interpolation [ J]. IEEE transactions on image processing,2001,10(10) :521 - 1527.
  • 5Chen Chinghan, Hsieh Shenghsien. A novel image interpolator based on probabilistic neural network with sharpness/smoothness adaptation [C ]. ISNN 2005 ,LNCS 3497,2005:698 -706.
  • 6Uthaiehana P, Leelarsmee E. A pipelined bilinear interpolation for real time video image expansion [ C ]. Tencon 2004. 2004 IEEE Region 10 Conference, Volume D,2004:21 - 24.
  • 7Grobbon K T, Bailey D G. A Novel Approach to Real-time Bilinear Interpolation [ C ]. Proceedings of the Second IEEE International Work- shop on Electronic Design, Test and Applications ( DELTA ' 04 ), 2004 : 126 - 131.
  • 8黄翔东,王兆华,李文元.2维加窗全相位图像滤波模板的设计[J].中国图象图形学报,2006,11(6):811-817. 被引量:5
  • 9刘冬,赵荣椿.保存边界的图象平滑方法[J].西北工业大学学报,2000,18(1):102-105. 被引量:4

二级参考文献23

  • 1王兆华,候正信,苏飞.全相位数字滤波[J].信号处理,2003,19(z1):1-4. 被引量:30
  • 2刘松涛,周晓东,沈同圣.DSP图像采集处理系统的数据可视化[J].海军航空工程学院学报,2003,18(6):677-679. 被引量:4
  • 3胡其刚.直接对内存操作实现图象旋转拼合[J].云南大学学报(自然科学版),1996,18(1):75-78. 被引量:1
  • 4侯正信.三种二维重叠数字滤波器的构造[J].天津大学学报,1985,(1):29-41.
  • 5[2]Sung-Il Chien,Yung-Mok Baek.A fast black run rotation algorithm for binary images[J].Pattern Recognition Letters,1998;19(5,6):455~459
  • 6[5]L da,Fontoura Costa.Gauss' Law in Image Processing and Analysis via Fast Numerical Calculation of Vector Fields[J].Real-Time Imaging,1999:5(4) :243~251
  • 7刘松涛 沈同圣 周晓东.DSP中的DMA及中断在实时图像处理系统中的应用[J].计算机应用研究,2003,:255-256.
  • 8TMS320C6000 Programmer's Guide. Texas Instruments, 2000.
  • 9TMS320C6000 Optimizing C Compiler User's Guide. Texas Instruments, 1999.
  • 10TMS320C6000 Tools: Vector Table and Boot ROM Creation. Texas Instruments Application Report, 1999.

共引文献15

相关主题

;
使用帮助 返回顶部