Summary:
Video is a data-rich medium that results in the creation of large data sets requiring large memory spaces and wide bandwidth to transmit. At The Ohio State University, we have created a dynamically grouped, 3D wavelet technology which significantly reduces the bit-rate for transmitting or storing audio, video and image signals, and out-performs existing technologies in terms of compression efficiency, image quality and scope of applications. Demonstration software is available.
Potential Applications:
- Streaming internet or wireless video and audio transmission
- Mobile phone video
- Video conferencing
- Video on demand
- Digital video surveillance
- Multi-media email
- Video databases and archiving
- Digital video editing
Advantages:
- Higher compression ratios than other techniques (e.g. discrete cosine transform based MPEG), while maintaining superior image quality
- Adaptive grouping 3D system for enhanced compression ratios
- Separate object and background compression
- Packed-integer implementation of wavelet transform for high-speed computation
- Software only solution
- Amenable to VLSI or DSP hardware implementations
- Suitable for handheld devices, since integer based computation allows for low power IC use
- Flexible algorithm facilitates tuning to available computational resources
IP Status:
US Patent No.: 6,801,573 (October 5, 2004)