FIELD: physics, computer engineering.
SUBSTANCE: invention relates to computer engineering and specifically to systems for viewing video sequences. Disclosed is a device for identifying one or more key frames of a video sequence which includes a plurality of frames. The device includes a processor, a memory module containing a computer program code. The processor of the device receives a video sequence containing a plurality of frames and upon receiving each of at least some of the frames, but before receiving all frames, calculates an estimate for a frame in the form of a function of the value of each of one or more properties of the image of the frame. The processor also compares the estimate for the frame with a predefined threshold and initiates output of the frame as the key frame if the frame was received during a given period of time and the estimate for the frame was higher than the predefined threshold. Otherwise the processor initiates output as the key frame of one of the frames received during the given period of time if, during the given period of time, frame with an estimate higher than the predefined threshold were not received, wherein the corresponding one of the frames is the frame with the highest estimate among frames received during the given period of time.
EFFECT: providing automated selection of a key frame in a video sequence.
31 cl, 29 dwg
