NEC has announced today that its video content identification technology will be supported in the upcoming MPEG-7 video standard, meaning content owners that release videos with the standard can “detect illegal copies” uploaded to the Internet almost instantly.
The company says each frame has its own unique signature, meaning that doing any editing to the file or analog or camera copies will completely alter the overall signature of the original video.
NEC says “these developments are expected to significantly reduce the time and cost of manual content inspections as well as improve the scale and accuracy of content assessment.”
Among the features of the video content identification technology are:
Accurate detection of copied or altered video content
Video signatures are extracted for each frame based on differences in the luminance between sets of sub-regions on a frame that are defined by a variety of locations, sizes, and shapes. Video signatures represent a unique fingerprint that can be individually detected frame by frame. This technology is capable of accurately detecting video content with that was created with such editing operations as analog capturing (*3), re-encoding (*4) and caption overlay (*5), which was conventionally very difficult to detect.
A high detection rate and low false positive rate for all video contents
By estimating confidence of signatures generated from each frame and using the confidence for sequence identification, the technology achieves a high detection rate (*6) with a very low false positive rate (*7). These technologies achieved an average detection rate of 96% at a very low false alarm rate of 5ppm (5 in one million) through tests conducted by the international standardization organization.
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Result for: frame by frame
According to a new report, Hitachi is expected to show off a new “super resolution” upconversion technology at the upcoming CEATEC show in Japan.
The company says the technology will upscale DVD and SDTV images to near 1080p resolution and will also improve the way HDTV broadcasts look.
There was no detailed information on how the process will work but a researcher at the company says the technology “analyzes the luminance signals of input images before processing multiple regions at a time.”
Electronista says the “super resolution technology processes images on a frame-by-frame basis, and does so in real-time. It has the ability to selectively process SDTV and HDTV images on the same screen that occur during relay broadcasts, for example, upconverting either. Also, the software can differentiate between a sharp image, such as a close-up, and less vivid areas, including backgrounds, thereby not having an adverse effect on perspective. This is in contrast with existing upconverting methods, which enhance images from a specific resolution at a fixed rate.”
The technology should be integrated into Hitachi’s LCD and plasma lines beginning in 2010 and the company says they hope to have a dedicated processing LSI chip developed by then.
Picture, thanks to the source:
