基于FPGA的D1到XGA图像放大引擎

A Image Enlargement Engine with D1 to XGA Based on FPGA

实现了基于FPGA的D1格式信号放大至XGA格式的图像放大引擎,介绍了算法原理和硬件系统结构。利用查表代替乘法运算,简化了硬件结构,提高了处理速度;无论在水平方向还是垂直方向上,算法始终是对一维的数据进行操作,有效地降低了复杂性;系统输入数据同时进行按行插值,显示图像的同时实现按列插值,充分利用了处理空隙,保证了系统的实时性。最后FPGA验证表明本文设计的图像放大系统可以在每秒60帧的速率下高质量地实现D1到XGA格式转换,同时很好地保留图像的边缘信息。

Realizes an engine based on FPGA translated its format from D1 into VGA.The arithmetic and the hardware system are introduced,in which the hardware has been simplified and the process speed increased by means of looking-up table instead of multiply operation.In order to reduce the complexities effectively,this algorithm operates on one-dimensional data whatever in vertical or horizental direction.The interpolate opereation is executed by row when signals are entering into system and then displaying by colum...