18412806. DETECTION OF VIDEO TAMPERING simplified abstract (Intel Corporation)
Contents
DETECTION OF VIDEO TAMPERING
Organization Name
Inventor(s)
Guy Ben-artzi of Zichron Yaacov (IL)
DETECTION OF VIDEO TAMPERING - A simplified explanation of the abstract
This abstract first appeared for US patent application 18412806 titled 'DETECTION OF VIDEO TAMPERING
The patent application describes techniques for generating secure video and detecting tampering in the video.
- Select a subset of macroblocks from a video frame for transmission.
- Calculate a low frequency metric for each selected macroblock.
- Perform a hash calculation on the low frequency metrics to generate a frame signature.
- Encrypt the frame signature with a private key to create an encrypted watermark.
- Modify pixels of selected macroblocks based on bits of the encrypted watermark to generate a secured video frame.
- Authenticate a received video frame by comparing the calculated frame signature to an authenticated frame signature decrypted from an extracted watermark.
Potential Applications: - Video surveillance systems - Secure video transmission over networks - Anti-tampering measures in video content
Problems Solved: - Ensuring video integrity and authenticity - Detecting and preventing tampering in video content
Benefits: - Enhanced security for video content - Reliable authentication of video frames - Protection against unauthorized modifications
Commercial Applications: Secure video transmission technology for industries such as: - Banking and finance - Law enforcement - Military and defense
Prior Art: Researchers in the field of video security and authentication have explored various methods for securing video content and detecting tampering. One area of prior art worth exploring is the use of watermarking techniques for video authentication.
Frequently Updated Research: Ongoing research in video encryption and authentication methods may provide further advancements in securing video content and detecting tampering.
Questions about Secure Video and Tamper Detection: 1. How does the methodology described in the patent application enhance video security? 2. What are the potential implications of this technology for industries that rely on secure video transmission?
Original Abstract Submitted
Techniques are provided for generation of secure video and tamper detection of the secure video. A methodology implementing the techniques according to an embodiment includes selecting a subset of macroblocks from a video frame to be transmitted and calculating a low frequency metric on each of the selected macroblocks. The method also includes performing a hash calculation on the low frequency metrics to generate a frame signature, encrypting the frame signature (using a private key) to generate an encrypted watermark, and modifying pixels of each of the selected macroblocks to generate the secured video frame, the modifications based on bits of the encrypted watermark that are associated with the selected macroblock. The method further includes authenticating a received video frame by comparing a calculated frame signature to an authenticated frame signature, the authenticated frame signature decrypted (using a public key) from an extracted watermark of the received video frame.
