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首页> 外文期刊>IEEE Transactions on Circuits and Systems for Video Technology >A robust error concealment technique using data hiding for image and video transmission over lossy channels
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A robust error concealment technique using data hiding for image and video transmission over lossy channels

机译：强大的错误隐藏技术，使用数据隐藏技术在有损通道上传输图像和视频

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摘要

A robust error concealment scheme using data hiding which aims at achieving high perceptual quality of images and video at the end-user despite channel losses is proposed. The scheme involves embedding a low-resolution version of each image or video frame into itself using spread-spectrum watermarking, extracting the embedded watermark from the received video frame, and using it as a reference for reconstruction of the parent image or frame, thus detecting and concealing the transmission errors. Dithering techniques have been used to obtain a binary watermark from the low-resolution version of the image/video frame. Multiple copies of the dithered watermark are embedded in frequencies in a specific range to make it more robust to channel errors. It is shown experimentally that, based on the frequency selection and scaling factor variation, a high-quality watermark can be extracted from a low-quality lossy received image/video frame. Furthermore, the proposed technique is compared to its two-part variant where the low-resolution version is encoded and transmitted as side information instead of embedding it. Simulation results show that the proposed concealment technique using data hiding outperforms existing approaches in improving the perceptual quality, especially in the case of higher loss probabilities.
机译：提出了一种使用数据隐藏的鲁棒错误掩盖方案，该方案旨在尽管信道损失也能在最终用户处实现图像和视频的高感知质量。该方案包括使用扩频水印将每个图像或视频帧的低分辨率版本嵌入其自身，从接收到的视频帧中提取嵌入的水印，并将其用作重建父图像或帧的参考，从而检测并隐藏传输错误。抖动技术已被用来从图像/视频帧的低分辨率版本中获得二进制水印。抖动水印的多个副本被嵌入特定范围内的频率中，以使其对信道错误更加鲁棒。实验表明，基于频率选择和比例因子变化，可以从低质量的有损接收图像/视频帧中提取高质量的水印。此外，将所提出的技术与其两部分变体进行了比较，在该变体中，低分辨率版本被编码并作为辅助信息发送而不是嵌入。仿真结果表明，所提出的使用数据隐藏的隐藏技术在改善感知质量方面优于现有方法，尤其是在丢失概率较高的情况下。

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