本文简要介绍了二维条码PDF417的编码、译码及纠错的原理和图像的采集和识别，然后研究了二维条码PDF417在三种模式下编码和译码算法，并设计了应用系统程序来实现-This article briefly describes the two-dimensional bar code PDF417 encoding, decoding and error correction principle and image capture and recognition, and then study t

：遥操作中采用全局摄像机对机器人进行定位时存在图像畸变带来的误差，针对这一 问题提出了一种图像畸变校正方法，该方法采用径向基神经网络(RBFNN)进行畸变校 正，从而获得机器人在实际空间中的坐标位置。实验表明，该方法简单有效，适用于广角镜 头带来的图像畸变校正，可以满足利用定位坐标进行路径规划的要求。-: Image distortion error when using the the global camera on the robot locate teleoperation

提出了一种基于纠错编码的DCT域数字水印算法,该算法在检测时不需要原始图像,实现了盲检。并且对水印图像进行了利用超混沌置乱处理,提高了安全性能和抗攻击能力。纠错编码的引入使水印抗攻击能力明显增强。 -DCT digital watermarking algorithm based on error correction coding, the algorithm detected without the original image, blind. And watermark image o

Straight line detection is still a challenging task in image processing. Though many methods have been put forward before, most of them have some limitations. In this paper, we propose a novel method for straight line detection based on chain cod