Video Storage Management via Tiered Resolution and Retention

The patent applies local quality by storing different portions of video data at different resolutions. Specifically, regions of interest (such as areas with motion detection or predefined important zones) are stored in high resolution, while other regions are stored in lower resolution. This resolves the contradiction by maintaining high video quality only where necessary, thereby reducing overall storage requirements while preserving critical visual information.

The patent segments video data into multiple categories based on importance, motion activity, and temporal characteristics. Different segments are stored with different retention policies and resolutions - for example, recent high-motion segments are kept at high resolution for longer periods, while static low-motion segments are stored at lower resolution or deleted after shorter periods. This segmentation allows the system to optimize storage capacity while maintaining video quality for the most important segments.

The patent implements dynamic retention policies where the storage duration of video data is not fixed but adjusts based on multiple factors including motion detection results, time of day, day of week, and system storage capacity. When storage capacity is sufficient, data is retained longer; when capacity is constrained, retention periods are shortened. This dynamic approach allows the system to maximize data availability while adapting to changing storage conditions, thereby resolving the contradiction between retention duration and storage capacity.

The patent applies partial retention by selectively keeping only certain portions of video data for extended periods. Rather than uniformly retaining all data, the system identifies and retains only the most valuable segments (those with motion, in regions of interest, or during critical time periods) at high resolution and for longer durations, while deleting or archiving other segments. This partial action approach maintains data availability for critical events while managing overall storage capacity.

The patent applies local quality by storing different portions of video data at different resolutions. Specifically, regions of interest (such as areas with motion detection or predefined important zones) are stored in high resolution, while other regions are stored in lower resolution. This resolves the contradiction by maintaining high video quality only where necessary, thereby reducing overall storage requirements while preserving critical visual information.

The patent changes the resolution parameter of video data based on multiple factors including whether the region contains motion, the time of recording, and the importance of the region. By dynamically adjusting this parameter, the system maintains high image quality for important data while reducing storage requirements for less critical data, thereby resolving the contradiction between image quality and storage requirements.