| 陈权,朱卫华,曹亮,陈志勇.基于FPGA的图像叠加及VGA显示设计[J].南华大学学报(自然科学版),2017,31(3):55~59.[CHEN Quan,ZHU Wei-hua,CAO Liang,CHEN Zhi-yong.The Design of Image Overlay and VGA Display Based on FPGA[J].Journal of University of South China(Science and Technology),2017,31(3):55~59.] |
| 基于FPGA的图像叠加及VGA显示设计 |
| The Design of Image Overlay and VGA Display Based on FPGA |
| 投稿时间：2017-05-29 |
| DOI： |
| 中文关键词: FPGA 图像叠加 VGA显示 移位操作 Modelsim仿真 |
| 英文关键词:FPGA image overlay VGA display shift operation Modelsim simulation |
| 基金项目:湖南省自然科学基金资助项目(16C1375) |
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| 中文摘要: |
| 为了实现两幅图像的半透明叠加的VGA显示,根据图像叠加原理和VGA 显示原理,使用Altera公司的FPGA 芯片CycloneⅣEP4CE15F17C8作为控制核心,采用VerilogHDL语言实现图像叠加Alpha算法,采用移位操作解决FPGA处理浮点运算问题,通过外部按钮来控制图像的透明度.用FPGA控制实现图像叠加的VGA实时显示,该设计方案具有体积小、成本低、速度快、工作稳定等优点.Modelsim仿真结果和实际显示效果验证了设计的正确性与可行性. |
| 英文摘要: |
| In order to achieve the semi-transparent overlay of two images and VGA real-time display,according to the principle of image overlay and the principle of VGA display,Altera's chip CycloneⅣEP4CE15F17C8 is used as the control core.The image overlay Alpha algorithm is achieved by VerilogHDL language.And the shift operation is adopted to solve the problem of FPGA processing floating point.And the transparency of the image is controlled by external buttons.The image overlay VGA display is realized by FPGA control,which has advantages such as smaller size,low cost,fast speed and more reliable stability.The Modelsim simulation results and the actual display results verify the correctness and feasibility of the design. |
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