Pre-filtering Digital Content Using Skin Tone Detection

The patent applies preliminary action by implementing a pre-filtering mechanism that performs initial content assessment before verification services are invoked. The pre-filter analyzes basic image properties and compares content against known safe content patterns, allowing the system to identify and block obviously inappropriate content without requiring computationally expensive verification service calls, thus reducing overall computational cost while maintaining detection reliability

The patent segments the content detection process into multiple stages: a lightweight pre-filtering stage that performs initial assessment using minimal computational resources, and a verification stage that is only invoked for content that passes or fails the pre-filter. This segmentation allows the system to handle the majority of content efficiently while maintaining high detection reliability for suspicious content through selective use of verification services

The patent applies partial action by invoking verification services only for a subset of content that requires deeper analysis. The pre-filter identifies content that needs verification based on simple criteria, and only those specific items are submitted to verification services. This partial approach maintains detection reliability for content that requires it while significantly reducing overall network bandwidth usage compared to verifying all content

The patent extracts the verification step from the universal content processing flow and applies it selectively only to content that the pre-filter identifies as potentially inappropriate. By taking out the expensive verification operation from the general processing path and applying it only where necessary, the system maintains high detection reliability for suspicious content while minimizing network bandwidth consumption for content that clearly passes or fails basic checks