Product/Service

InSight MPEG-2 Video Products

Source: Delta Information Systems, Inc.
The InSight family of products permit real-time digital transmission of very high quality video, audio and data at a variety of communications rates
Features
  • Industry Standard MPEG-2 MP@ML
  • Ultra High Video Quality
  • CCIR601: Full Resolution, Full
  • Frame Rate
  • NTSC, PAL or Custom Formats
  • Composite or Component Inputs (Optional SDI)
  • MPEG-1 Audio Encoding
  • User Data Input
    MPEG-2 Video/Audio/Data Multiplex
  • Data Rates from 2 Mbps to 15 Mpbs


Applications
  • Surveillance
  • Reconnaissance
  • Security Systems
  • ENG
  • Video Conferencing
  • Telemedicine
  • Entertainment
  • Training

The InSight family of products permit real-time digital transmission of very high quality video, audio and data at a variety of communications rates. These modules incorporate the MPEG-2 compression algorithm which provides the latest in video compression technology. This algorithm is used in HDTV and Digital Satellite Broadcast TV systems. The InSight encoder produces a digital compressed data stream which can be clocked at rates from 2 Mbps to 15 Mpbs using an internal or external clock.

The module supports horizontal resolution of up to 720 pixels per line and 480 lines per frame for NTSC or 576 lines per frame for PAL. A half horizontal resolution mode provides enhanced performance at lower bit rates. The module operates at full real-time video frame rates of 30 frames (60 fields) per second for NTSC or 25 frames (50 fields) per second for PAL.

The compression algorithm is fully compliant with MPEG-2 Main Profile at Mail Level (MP@ML) plus the extensions for enhanced chroma support at 4:2:2. The MPEG-2 algorithm provides for field or frame encoding using the Discrete Cosine Transform (DCT) with adaptive quantization and motion estimation. Programmable functions within the encod-ing algorithm allow the module to be tailored for a variety of applications and quality levels. For low bit rate applications, the module can also compress video using the MPEG-1 algorithm. InSight products support an intra-frame only mode which produces I frames, an inter-frame mode which produces I and P frames, and an inter-frame mode which produces I, P and B frames.

Audio can be acquired at different sample rates. Two line level inputs are provided and compressed using MPEG-1 layer 1 or 2. A port is provided to allow the acquisition of user data that is multiplexed with the audio and video data prior to transmission. This provides a single data stream containing synchronized audio, video and user data.

Delta Information Systems, Inc., 300 Welsh Road, Building 3, Horsham, PA 19044-2273. Tel: 215-657-5270; Fax: 215-657-5273.