18452194. MOTION VECTOR CODING SIMPLIFICATIONS simplified abstract (Apple Inc.)
Contents
MOTION VECTOR CODING SIMPLIFICATIONS
Organization Name
Inventor(s)
Yeqing Wu of Cupertino CA (US)
Yunfei Zheng of Santa Clara CA (US)
Guoxin Jin of San Diego CA (US)
Alican Nalci of Cupertino CA (US)
Hilmi Enes Egilmez of Santa Clara CA (US)
Hsi-Jung Wu of San Jose CA (US)
MOTION VECTOR CODING SIMPLIFICATIONS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18452194 titled 'MOTION VECTOR CODING SIMPLIFICATIONS
Simplified Explanation
The patent application describes techniques for improved video coding with virtual reference frames.
- Motion vectors for prediction of pixel blocks from a reference can be constrained based on the reference.
- If the reference is a temporally interpolated virtual reference frame close to the time of the current pixel block, the motion vector for prediction may be constrained in magnitude and/or precision.
- The bitstream syntax for encoding the constrained motion vector may also be constrained.
- Potential Applications:**
- Video compression technology - Streaming services - Video conferencing systems
- Problems Solved:**
- Improved coding efficiencies - Better quality video encoding - Reduced bandwidth usage
- Benefits:**
- Enhanced video compression - Higher quality video playback - Reduced data consumption for video streaming services
Original Abstract Submitted
Techniques are disclosed for improved video coding with virtual reference frames. A motion vector for prediction of a pixel block from a reference may be constrained based on the reference. In as aspect, if the reference is a temporally interpolated virtual reference frame with corresponding time close to the time of the current pixel block, the motion vector for prediction may be constrained magnitude and/or precision. In another aspect, a bitstream syntax for encoding the constrained motion vector may also be constrained. In this manner, the techniques proposed herein contribute to improved coding efficiencies.
