Real-time face recognition-based selective recording apparatus and method

A recording method comprising:

• recognizing a face of a person in a decompressed input image frame;
• setting a scene change start frame in which the person appears as a valid recording point if the recognized face is detected for a predetermined period of time or detected a predetermined number of times;
• identifying a position, which corresponds to the set scene change start frame, in an image compression stream;
• recording the image compression stream from the identified position and storing the recorded image compression stream in real time on a recording medium;
• and
• deleting the recorded image compression stream if the recognized face is not detected for the predetermined period of time or the predetermined number of times,
• wherein at least one of the recognizing, the setting, the identifying, and the recording is implemented by a hardware processor.

A recording method comprising:

• receiving a decompressed image frame corresponding to an image compression stream;
• recording and storing a section of the image compression stream beginning at the decompressed image frame;
• determining whether a face is detected for a predetermined period of time or for a predetermined number of times in the recorded section of the image compression stream;
• and
• removing the recorded section if it is determined that the face is not detected for the predetermined period of time or the predetermined number of times in the recorded section.