A DCT Based Near Reversible Data Embedding Scheme for MPEG-4 Video

Gujjunoori, Sagar; Amberker, B. B.

doi:10.1007/978-81-322-0997-3_7

Cited by 5 publications

(1 citation statement)

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“…Techniques embedding data using qTCs have also been proposed 8 – 14 According to the reversibility of the cover data (image or video), data hiding techniques can be classified as the reversible type and the irreversible type. In general, reversible data hiding techniques need high redundancy in order to restore the original data and will lead to an significant file-size overhead of the cover data, which is not ideal for video discs because of the strict capacity limit 15 …”

Section: Introductionmentioning

confidence: 99%

Lossless data hiding technique reducing cover data size for compressed videos

Li,

Kang,

Sakamoto

2024

J. Electron. Imag.

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In recent years, multimedia techniques have rapidly advanced. Video discs with massive storage capacities exemplify widely used multimedia storage mediums. However, online multimedia services face strict storage limits, and compression rates impact streaming quality. This poses a dilemma-data hiding risks exceeding storage limits and affecting the quality of video streams. To address this, we propose a lossless data hiding technique focusing on cover data size. The technique embeds new data into compressed cover video data, decreasing data size post-embedding. Extraction requires no key. In addition, the processing time is short enough that the technique can be used in real-time applications. We verified the technique through experiments with MPEG-2 videos. Video data size decreased after hiding data, and quality degradation remained acceptable. Results confirm the technique's efficacy.

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