Fujitsu Develops New Technology that Ensures Authenticity of Digital Video Clips

Fujitsu Laboratories announced today the development of the world's first technology that makes it possible to ensure that digital video data recorded over long time periods and then stored and managed in segments, or clips extracted from the video, are actual parts of the original video and that the segments have not been falsely manipulated, while at the same verifying the time that the video data was recorded.

This new technology makes it possible to ensure that when portions of video - such as from 24-hour surveillance cameras - are public disclosed, that the video data segments have not been tampered with.

Details of the new technology will be presented at the Information Processing Society of Japan's Computer Security Group (CSEC) conference to be held in Fukuoka, Japan from July 24 to July 25.

In recent years, surveillance cameras have gained wide use in stores, factories, and streets for security and to facilitate quick resolution of crimes, traffic accidents, and other incidents. Cases in which video images from such cameras are utilized as evidence are rising rapidly. While digital storage of video data is convenient, it is easy to manipulate the data. This has led to a growing demand for proof that video images have not been tampered with, when they are used as evidence (also referred to as digital authenticity of video evidence). Furthermore, in order to protect personal privacy, it is also necessary to ensure the digital authenticity of video data extracted from the original data.

Fujitsu Laboratories pioneered the development of the world's first technology that ensures that a single video file has not been falsely manipulated even when a portion of the video is extracted as a measure to protect privacy, while also ensuring accuracy in regard to who extracted the video and which segments were extracted. By utilizing this technology, it is possible to ensure the digital authenticity of video data while also maintaining privacy protection.

For applications such as surveillance cameras, where images are captured over long periods of time or 24 hours a day, there is a need for technology that maintains the assurance of digital authenticity of video data - including the time that the data was digitally recorded - while making it possible to divide video data into multiple segments that are several hours long, and store and manage that data.

In order to meet the aforementioned technological challenges, Fujitsu Laboratories developed the world's first technology that makes it possible to securely store and manage clips of digital video recorded over long time periods while ensuring when the data was recorded.

With the new technology, data that ensures the continuity of video segments (verification data) is associated and linked with each video segment, and is managed along with the time stamp. Even when video is stored in segments, this technology makes it possible to ensure the continuity of the video data segments by ensuring that no data has been erased or tampered with, thereby enabling secure subdivision and management of long-duration digital video that is enabled for digital verification.

This new technology enables secure storage and management of segments of long-duration video. Moreover, the technology makes it possible to extract only the desired portions of the video which for example can be used as evidence from surveillance cameras or for public disclosure, without invading privacy.

In addition to applications in the surveillance market for storage, archiving, and utilization of video, Fujitsu Laboratories is also targeting applications in the video verification/tracing business, such as enabling detection and tracing of tampered portions of video.

Source: Fujitsu Laboratories

Related stories:

Panasonic Unveils 3D 1080p Plasma HDTV On Single Blu-Ray Disc At CEATEC Japan 2008
Panasonic unveiled the latest technology in 3D 1080p on a 100-inch plasma HDTV. According to Panasonic, the 3D innovation was demonstrated at CEATEC Japan 2008 using a Panasonic 100-inch plasma and a Blu-Ray player to deliver full 1080p HD video with separate views to each eye. The infinitesimal differences between the two video streams create the 3D effect in the brain.  The Panasonic difference is the ability to create a sustained full high-definition experience.  Viewers will need polarized glasses to get the full effect. The old multi-color 3D card board goggles are not necessary which is a good thing. 
California Scientists Demonstrate How to Use Advanced Fiber-Optic Backbone for Research
(PhysOrg.com) -- How can super-fast networking among research institutions in California help scientists make new discoveries? Researchers, campus administrators and networking infrastructure officials converged on the University of California, San Diego in September to find out.
AAAS satellite image analysis reveals South Ossetian damage
Satellite images captured before and after the 7-8 August clash between Georgia, South Ossetian separatists and Russia reveal that 424 civilian structures near Tskhinvali were damaged by 19 August – although they appeared intact in images taken on 10 August and earlier, the American Association for the Advancement of Science (AAAS) has reported.
Hitachi Unveils Digital Signatures on Stand-Alone Memory Chips
Hitachi announced today the development of a mechanism for attesting the authenticity of memory chips using highly secure digital signatures in a worldwide breakthrough. Since the mechanism requires neither a CPU nor a computational unit, high security can be attained at a very low cost. As a result, counterfeited or altered memory devices can be recognized as such, with a wide range of applications, including memory cards for digital cameras or handheld video game consoles, cartridges for consumer products, admission tickets or gift coupons.
Now is a good time for neophytes to catch up with the iPod
When Apple released the iPod in October 2001 it cost $399 and held just 5 GB of music, or about 1,000 songs. The new line of iPods that Apple introduced last week range in price from $49 to $399, can hold up to 120 GB of music (30,000 songs), videos and photos, play games, surf the Internet, access e-mail or download music.
Amazon's Google phone alliance ramps up attack on iTunes
Internet retail titan Amazon has ramped up its attack on Apple's iTunes by having links to its MP3 online music and movie store built into a "Google phone" due out next month.
WTO to rule on US dispute with EU on hi-tech products: sources
The World Trade Organisation agreed to rule on a challenge brought by the United States, Japan and Taiwan against the European Union over duties on high-technology products, WTO sources told AFP on Tuesday.
'Biological clock' genes control plant growth
(PhysOrg.com) -- More than 125 years ago Charles Darwin first reported that most plants grow in a spurt during the night, not the day – and this week, scientists are reporting the discovery of the genes that control this phenomenon.

News discussion:

Technology news