Method, system and apparatus for selecting frames of a video sequence

A non-transitory computer-readable medium storing a program to implement a method of selecting at least one frame capturing a short duration action from a video, the program comprising:

• code for receiving a sequence of frames of the video;
• code for determining a reference frame in the sequence of frames by detecting a predetermined action captured in one of a first plurality of frames from the sequence of video frames, the first plurality of frames being sampled from the sequence of frames at a first sampling rate lower than that of the sequence of frames;
• code for selecting a second plurality of frames from the sequence of frames, the second plurality of frames having a location associated with the reference frame in the sequence and being selected at a second sampling rate, the second sampling rate being higher than the first sampling rate;
• and
• code for selecting the at least one frame capturing the short duration action from the second plurality of frames.

An image capture device, comprising:

• capture a sequence of frames of a video;
• and
• one or more processors that, when executing a software program, operates to:
• determine a reference frame in the sequence of frames by detecting a predetermined action captured in one of a first plurality of frames from the sequence of frames, the first plurality of frames being sampled from the sequence of frames at a first sampling rate lower than that of the sequence of frames;
• select a second plurality of frames from the sequence of frames, the second plurality of frames having a location associated with the reference frame in the sequence and being selected at a second sampling rate, the second sampling rate being higher than the first sampling rate;
• and
• select at least one frame capturing the short duration action from the second plurality of frames.

A system comprising:

• a processor;
• and
• a memory device storing a software program for directing the processor to perform a method comprising the steps of:
• receiving a sequence of frames of a video;
• determining a reference frame in the sequence of frames by detecting a predetermined action captured in one of a first plurality of frames from the sequence of frames, the first plurality frames being sampled from the sequence of frames at a first sampling rate lower than that of the sequence of frames;
• selecting a second plurality of frames from the sequence of frames, the second plurality of frames having a location associated with the reference frame in the sequence and being selected at a second sampling rate, the second sampling rate being higher than the first sampling rate;
• and
• selecting at least one frame capturing the short duration action from the second plurality of frames.