摘要
针对在MPEG-2视频中插入台标,提出了一种基于离散余弦变换域处理的快速台标插入法。与解码-相加-再编码的方法相比,该方法省去了离散余弦变换、反离散余弦变换和重新做运动估计等环节,大大节省了运算量,适合于硬件实时系统的实现。实验表明和解码-相加-再编码的方法相比,以图像质量的轻微下降,换取了较快的处理速度。
A novel method of logo insertion in MPEG\|2 video is proposed. Compared to the method of Decompression\|Addition\|Recompression, it needs neither DCT and inverse DCT transformation nor motion estimation. Therefore, computational complexity is reduced and it is quite suitable for real\|time procession. The experimental result shows that the proposed method has almost the same effect as pixel domain processing method.
出处
《红外与激光工程》
EI
CSCD
北大核心
2003年第5期547-550,共4页
Infrared and Laser Engineering
基金
上海市青年科技启明星计划(01QD14030)
