Advanced Imaging


Advanced Imaging Magazine

Updated: January 12th, 2011 09:49 AM CDT

Putting the Squeeze on Surveillance Video

H.264 compression provides high resolution with variable bit and frame rates
A Mexican cityís metro station uses a Euresys Picolo V16 H.264 board to digitize, compress, locally store and broadcast over a network to a central station where itís ready for observation and review.
The Picolo V16 video capture board features real-time H.264 on-board compression for 16 video channels with audio capability. Each video input simultaneously delivers a formatted and compressed video stream, both of which are independently configurable.

By Barry Hochfelder

H.264 has seven profiles (sets of algorithmic features), each of which targets a specific set of applications. Each defines what feature set the encoder may use and limits the complexity of the decoder implementation. The profiles are categorized as baseline, main and high profile. They range from baseline, which is primarily for low-cost applications and often is used in videoconferencing, up to High 4:4:4 Predictive Profile.

In addition to the surveillance issues, other applications, such as online video storage and telecommunications companies are beginning to adopt the versatile H.264.

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