Digital watermarking is a key technique for copyright protection and content slight change detection for a multimedia document.
数字水印是多媒体版权保护和内容防篡改的重要手段之一。
With the widespread applications of the e_commerce, copyright protection of multimedia content being sold is a key problem to be solved.
随着电子商务的日益普及，如何保护数字多媒体作品的版权已成为当前迫切需要解决的问题。
With the rapid development of computer network and multimedia technology and wide application of data in video, video content protection and copyright issue attract wide attention around the world.
随着网络技术和多媒体技术的飞速发展和视频媒体数据的广泛应用，视频媒体的内容保护和版权问题引起了人们的广泛关注。
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