摘要
为解决不同的输入视频源在固定分辨率的平板显示器件上无损显示问题,提出一种基于双线性和双三次混合插值的图像缩放算法及其硬件实现方法.基于混合插值算法,完成图像缩放IP核的VLSI设计.该IP核支持多种格式的输入源,无需外部存储器实现高精度的缩放功能,并作为嵌入式IP核在数字视频处理芯片DTV100B中进行功能验证正确.混合插值方法在保持图像细节和清晰度方面优于双线性插值,而在内部存储资源开支上不到双三次插值的1/2.
In order to solve the problern of various input video sources displaying in flat panel display devices which have the fixed resolution without any distortion, an algorithm for image scaling based on mixed interpolation by bilinear and bicubic is proposed, and its corresponding hardware implementation is also presented. The image scaling IP core is designed by VLSI based on the mixed interpolation. The input video sources with various formats are supported by it, and the high-precision scaling function without external storage is implemented. As an embedded IP core, the image scaling core is verified to be correct in function in the digital video processing chip DTV100B. The mixed interpolation method is superior in image detail and definition preserving to bilinear interpolation, and its expense of internal memory resources is less than half that of bicubic interpolation.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2010年第1期158-162,共5页
Journal of Xidian University
基金
国家高技术研究发展计划(863)资助项目(2009AA01Z307)
作者简介
葛晨阳（1977-），男，西安交通大学博士研究生，E—mail：cyge@mail．xjtu．edu．cn
