Glossary

GEUTEBRÜCK Specific

• ACP - Automatic Compression Profiles
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    ACP - Automatic Compression Profiles

   
   

   

   

   

  ACP - Automatic Compression Profiles - latency-free compression control by means of time matrix and events

   

   

   
• AD - Activity Detection
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    AD - Activity Detection

   
   

   

   

   

  Video motion detection for interior surveillance and special exterior applications with extensive parameter options to optimize sensitivity adjustment to the global circumstances on site. 42 x 34 detection cells, individual cells with optional privacy masking, result in one event channel per camera channel. Measurement and reaction times: 160 ms, for reliable detection of motion. Suppression of unwished reactions by global disturbances (weather, lighting, etc.).

   

   

   
• CPA
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    CPA

   
   

   

   

   

  Camera Position Authentication

   

   

   
• DCS - Dual Channel Streaming
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    DCS - Dual Channel Streaming

   
   

   

   

   

  DCS - Dual Channel Streaming - independent channels for live and recording The complete separation of live channel and storage channel (DCS) allow an optimal adjustment to network bandwidths and storage solutions at all resolution rates (QCIF, CIF, 2CIF, 4CIF) and 25 frames/s per channel.

   

   

   
• DGS - Dynamic GroupOfPicture Size
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    DGS - Dynamic GroupOfPicture Size

   
   

   

   

   

  The standard GOP length of e.g. a MPEG sequence for DVDs is max. 15 images. Such a fixed GOP structure has a lot of disadvantages for CCTV applications. If there is a lot of motion in the camera images, the size of the difference pictures increases as long as the next I-frame is generated. If there is less motion in the camera images, many I-frames (reference pictures) are generated due to the GOP structure although this is not needed, the required storage capacity is increased considerably. MPEG4CCTV offers dynamic GOP length control which automatically generates a new I-frame if the camera image changes considerably, or, if there is less motion, which keeps generating difference images (B-frames, referring to the previous I-frame) for a considerably longer period of time.

   

   

   
• DLS - Dynamic Live Streaming
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    DLS - Dynamic Live Streaming

   
   

   

   

   

  DLS - Dynamic Live Streaming - the display controls the resolution quality The dynamic live picture transmission (DLS) per camera channel optimizes the transmission of picture sizes in the network. In the process the resolution of the respective viewer window of a camera in the user interface determines in which resolution the live channel must be operated by the DSP.

   

   

   
• DSX - Dynamic Storage EXpansion
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    DSX - Dynamic Storage EXpansion

   
   

   

   

   

  The database can be extended dynamically and without loss of pictures at any time.

   

   

   
• ICD - Intelligent Compression Dynamics
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    ICD - Intelligent Compression Dynamics

   
   

   

   

   

  ICD - Intelligent Compression Dynamics - AD/VMD control the compression quality latency-free Intelligent Compression Dynamics (ICD) for automatic adjustment of frame rate and quality to the events (motion and noise) in real time - dynamically and latency-free. Two hierarchised/staged recording levels for permanent recording in order to receive meaningful documentation of each event, even beneath critical event swells, without permanent storage of redundant freeze images.

   

   

   
• MPEG4CCTV
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    MPEG4CCTV

   
   

   

   

   

  A compression procedure by GEUTEBRÜCK specially matched to CCTV applications

   

   

   
• VBR - (Variable Bit Rate)
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    VBR - (Variable Bit Rate)

   
   

   

   

   

  The selected compression rate determines a constant picture quality (CPQ) independent from any motion. More motion in the pictures will increase the bit rate in comparison with pictures with less motion. For calculating the required storage space an average value needs to be determined considering recording times with a lot of motion as well as recording times with less motion in the pictures.

   

   

   
• VFR - Variable Frame Rate
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    VFR - Variable Frame Rate

   
   

   

   

   

  VFR - Variable Frame Rate - from 0 - 25 fps per video channel The picture rate for permanent recordings and event-triggered recordings can be adjusted variably. The adjustment range goes from live (25 fps) up to timelapse recordings with for example 1 picture / 10 s.

   

   

   
• VMD - Video Motion Detection
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    VMD - Video Motion Detection

   
   

   

   

   

  3-D video sensor function - Highly sophisticated video motion detection for critical outdoor applications