Eye Tracking Based Video Defocusing for Bandwidth Optimization

The patent applies local quality by encoding different regions of the video frame with different quality levels. Specifically, the video frame is divided into multiple regions, and each region is encoded at a different bitrate based on its importance. Important regions (where users are likely to focus attention) are encoded at higher quality, while less important regions are encoded at lower quality. This resolves the contradiction by maintaining high video quality in critical areas while reducing overall bandwidth consumption through selective compression.

The patent segments the video frame into multiple distinct regions for differential encoding. By dividing the video content into region-of-interest (ROI) areas and non-ROI areas, the system can apply different compression strategies to each segment. This segmentation enables the system to prioritize bandwidth allocation to important regions while applying more aggressive compression to less important regions, thereby reducing total bandwidth usage without significantly impacting perceived video quality.

Instead of applying uniform high quality encoding to the entire video frame, the patent implements local quality by assigning different encoding parameters to different spatial regions. The video frame is partitioned into multiple regions, and each region is encoded with appropriate quality levels based on its visual importance. This approach maintains high video quality in regions that matter most to viewers while using lower quality encoding in less critical regions, thereby reducing overall bandwidth consumption without compromising the viewing experience.

The patent applies partial action by selectively applying high quality encoding only to specific regions of the video frame rather than uniformly across the entire frame. By identifying and prioritizing region-of-interest areas where users are most likely to focus their attention, the system applies excessive encoding quality only where necessary, while using standard or reduced quality encoding for other regions. This selective approach maintains perceived video quality while significantly reducing total bandwidth requirements.