红外与激光工程, 2003, 32 (5): 547, 网络出版: 2006-04-28
基于离散余弦变换域处理的快速台标插入法
Fast logo insertion method based on DCT domain
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.
Abstract
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.
陈亮, 孙军, 罗宁. 基于离散余弦变换域处理的快速台标插入法[J]. 红外与激光工程, 2003, 32(5): 547. 陈亮, 孙军, 罗宁. Fast logo insertion method based on DCT domain[J]. Infrared and Laser Engineering, 2003, 32(5): 547.
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