用于FPGA平台上图像快速旋转的改进CORDIC算法
电子技术应用
高宇杰1,李武森1,戚云菲2,陈文建1
1.南京理工大学 电子工程与光电技术学院,江苏 南京 210094;2.澳门城市大学 数据科学学院, 澳门 999078
摘要: 坐标旋转数字算法(CORDIC)被广泛应用于消旋、相机边框等系统中。在对传统CORDIC算法分析的基础上提出了重编码预测和多倍迭代优化的方法,并用MATLAB进行了仿真,又在VIVADO上进行了FPGA验证与对比。实验结果表明,上述优化相对传统CORDIC算法以及VIVADO自带的CORDIC IP核显著减少了迭代次数,消耗了更少的资源,计算的精度也有了一定的提升。
中圖分類號(hào):TN492 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.234288
中文引用格式: 高宇杰,李武森,戚云菲,等. 用于FPGA平臺(tái)上圖像快速旋轉(zhuǎn)的改進(jìn)CORDIC算法[J]. 電子技術(shù)應(yīng)用,2024,50(3):100-103.
英文引用格式: Gao Yujie,Li Wusen,Qi Yunfei,et al. The CORDIC algorithm for high-speed image rotation on FPGA platform[J]. Application of Electronic Technique,2024,50(3):100-103.
中文引用格式: 高宇杰,李武森,戚云菲,等. 用于FPGA平臺(tái)上圖像快速旋轉(zhuǎn)的改進(jìn)CORDIC算法[J]. 電子技術(shù)應(yīng)用,2024,50(3):100-103.
英文引用格式: Gao Yujie,Li Wusen,Qi Yunfei,et al. The CORDIC algorithm for high-speed image rotation on FPGA platform[J]. Application of Electronic Technique,2024,50(3):100-103.
The CORDIC algorithm for high-speed image rotation on FPGA platform
Gao Yujie1,Li Wusen1,Qi Yunfei2,Chen Wenjian1
1.School of Electronic and Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China; 2.Faculty of Data Science, City University of Macau,Macau 999078,China
Abstract: The Coordinate Rotation Digital Algorithm (CORDIC) was widely used in racemic systems, camera frames and other applications. Based on the analysis of the traditional CORDIC algorithm, a method of recoding prediction and multi-times iterative optimization was proposed, simulated with MATLAB, verified and compared with FPGA on VIVADO. The experimental results show that compared with the traditional CORDIC algorithm and the VIVADO CORDIC IP core, the optimization here significantly reduced the iteration times, consumed less resources, and the calculation accuracy also be improved.
Key words : image rotation;coordinate rotation digital algorithm;re-coding prediction;multi-times iterative
引言
在移動(dòng)攝像及顯示系統(tǒng)中,當(dāng)攝像頭發(fā)生旋轉(zhuǎn)的時(shí)候,顯示屏中的畫面也會(huì)隨之產(chǎn)生不可避免的旋轉(zhuǎn),從而對目標(biāo)的觀察和操作產(chǎn)生較大的影響,此時(shí)就需要在顯示前,先對攝像頭傳輸過來的圖像進(jìn)行消旋處理。為此,本文提出了一種基于坐標(biāo)旋轉(zhuǎn)數(shù)字算法(Coordinate Rotation Digital Algorithm ,CORDIC)的優(yōu)化的圖像消旋算法。
本文詳細(xì)內(nèi)容請下載:
http://m.ihrv.cn/resource/share/2000005923
作者信息:
高宇杰1,李武森1,戚云菲2,陳文建1
1.南京理工大學(xué) 電子工程與光電技術(shù)學(xué)院 2.澳門城市大學(xué) 數(shù)據(jù)科學(xué)學(xué)院

此內(nèi)容為AET網(wǎng)站原創(chuàng),未經(jīng)授權(quán)禁止轉(zhuǎn)載。
