METHOD AND SYSTEM FOR SELECTING KEY FRAMES FROM VIDEO SEQUENCES Russian patent published in 2013 - IPC G06T15/00 

FIELD: information technology.

SUBSTANCE: invention discloses a method and a system for solving a specific task of converting video from monocular to stereoscopic and from black and white to colour, in semi-automatic mode. The method of selecting key frames and supplementing a video sequence with depth or colour information includes the following operations: obtaining data for initialising objects of each key object in each frame; detecting change of scene in an input video sequence and breaking the video sequence into scenes; for each scene, detecting data on activity of each object through a module for analysing video data and global movement (GM) data on all frames of the scene and storing said data in a video analysis result storage; wherein after processing the video scene, stored data on activity of each object are first analysed, key frames are selected, data on GM and key frames of the object are then analysed; key frames are extracted and output through the video data analysis unit; after which the video analysis result storage is cleared and then switched to the next scene of the input video sequence until reaching the end of the video sequence. The system consists of three basic parts: a video data analysis unit; a video analysis result storage; a video analysis result processing unit.

EFFECT: converting video from monocular to stereoscopic and from black and white to colour, in a semi-automatic mode.

21 cl, 7 dwg