Digital watermarking is the technology that embeds secret information into digital multimedia data such as sound, image or video by using signal processing technology.

数字水印技术是用信号处理的方法在声音，图像或视频等数字化多媒体数据中嵌入隐蔽信息的行为。

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The key technology to video conference television is video conference image signal processing.

视频会议图像信号处理是视频会议电视的关键技术。

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In this subject, the more popular FPGA technology combined with digital television technology is utilized for the processing of the video signal of the X-ray perspective image after digitalization.

本课题正是利用现在比较流行的FPGA技术结合电视技术对数字化后的X射线透视图像的视频信号进行数字处理。

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