Title :
A NOVEL DE-INTERLACE BASED ON SPATIO-TEMPORAL WEIGHT ADAPTIVE AND EDGE-DIRECTED INTERPOLATION
Author :
Yong Ding ; Sheng-Li Lu ; Long-Xing Shi
Author_Institution :
Nat. ASIC Syst. Eng. Res. Center, Southeast Univ., Nanjing
Abstract :
De-interlace is an image format conversion from interlaced image to progressive one. In this paper, a de-interlacing algorithm based on spatio-temporal weight and edge direction is presented. It consists of motion detection, low-angle edge detection, spatio-temporal weight calculation, and adaptive interpolation. Same-parity fields motion estimation is adopted to improve the accuracy of motion estimation. And edge direction adaptive interpolation is proposed to sharpen edges and remove the saw-tooth artifacts in which the minimum 6deg edge can be detected. Experimental results show that the proposed method achieves high image quality and low hardware complexity
Keywords :
edge detection; interpolation; motion estimation; video signal processing; de-interlacing algorithm; edge direction adaptive interpolation; hardware complexity; image format conversion; image quality; interlaced image; low-angle edge detection; motion detection; progressive image; same-parity fields motion estimation; saw-tooth artifacts; spatio-temporal weight adaptive interpolation; Application specific integrated circuits; Hardware; Image converters; Image edge detection; Image quality; Interpolation; Motion detection; Motion estimation; Systems engineering and theory; Vectors;
Conference_Titel :
Signal Processing, 2006 8th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-9736-3
Electronic_ISBN :
0-7803-9736-3
DOI :
10.1109/ICOSP.2006.345488
