A system and method for scaling images are provided. An upscaling algorithm or function is employed that increases the size of an image and then filters the upscaled image to remove aliasing artifacts. The system and method provides for acquiring an image of a first size (202), detecting the geometry of the image (204), scaling the image to a second size (216), and filtering the scaled image with at least one filter based on the detected geometry (218). During the filtering process, the edges of objects in the upscaled image are detected and different filter frequency responses are provided for the detected edges. Providing different filter frequency responses for the detected edges preserves more details for line images.
申请公布号
WO2009038559(A1)
申请公布日期
2009.03.26
申请号
WO2007US20295
申请日期
2007.09.19
申请人
THOMSON LICENSING;ZHANG, DONG-QING;DOSER, INGO TOBIAS;VASQUEZ, MARCO ANTONIO;GU, XUEMING HENRY
发明人
ZHANG, DONG-QING;DOSER, INGO TOBIAS;VASQUEZ, MARCO ANTONIO;GU, XUEMING HENRY