Video Encoding Scene Switch Detection for Low-Latency IDR Insertion

The patent applies preliminary action by performing scene switch detection during the encoding process itself rather than before encoding. The encoder detects scene switches by analyzing prediction modes and pixel differences during frame encoding, allowing the system to prepare for IDR frame insertion without requiring separate pre-processing steps, thus reducing latency while maintaining detection accuracy

The patent maintains continuity of useful action by integrating scene switch detection into the continuous encoding workflow. The detection process occurs concurrently with encoding operations, utilizing already-computed prediction modes and pixel data during the encoding process, ensuring that the useful action of encoding continues without interruption while scene switch detection proceeds simultaneously

The patent applies self-service by utilizing encoding process data (prediction modes, pixel differences) that are already generated during normal encoding operations. The scene switch detection mechanism serves itself by reusing existing encoding intermediates rather than requiring separate detection hardware or additional processing resources, thus reducing overall system complexity while achieving low-latency detection

The patent demonstrates universality by making the encoding process serve dual functions: both compressing the video data and detecting scene switches. The same encoding operations that produce compressed output also generate the information needed for scene switch detection, allowing one process to perform multiple functions and reducing the need for separate detection mechanisms