Retraining scene significance classification using user input relating to significance

摘要

The invention relates to recording apparatus which records a television signal. A classifier system is provided to classify scenes of the television signal as significant or not significant (e.g. commercials may be classified as not significant). An output indicating scenes of significance is produced (e.g. a flag or marker may be included in the recorded signal to identify scenes of significance. The recording apparatus then allows a user to input scenes and significance information indicating the degree of significance of the input scene. The scene and significance information are used to retrain the classifier system. This provides an adaptive classifier system. For example, the classifier system may be initially trained to identify 'splash' or title scenes before and after commercial breaks to classify the commercial break as not significant. A marker may then be included in the television signal to identify programme scenes as significant. However, splash screens may change over time and the classifier system may fail to identify changed splash screens. The user may therefore input information to the classifier system identifying a desired scene, such as the new splash screen, as significant and the classifier system is retrained using the input information. The retrained classifier system subsequently functions to identify commercial breaks using the new splash screens.