Video camera and image extracting apparatus utilized for same

An area control program executed by a processor of an image extracting apparatus which extracts a partial object scene image belonging to a specific area out of an object scene image captured by an imaging surface, including:

• a first determining step for determining whether or not a movement of the object scene image captured by said imaging surface satisfies a pan/tilt condition;
• a second determining step for determining whether or not the movement of the object scene image captured by said imaging surface satisfies a camera-shake condition referring to a threshold value;
• a setting step for setting a large numerical value to said threshold value as a zoom magnification is high;
• a first activating step for activating said second determining step in place of said first determining step when a determination result of said first determining step is affirmative;
• a second activating step for activating said first determining step in place of said second determining step when a determination result of said second determining step is affirmative;
• and
• a moving step for moving said specific area within said imaging surface in such a direction as to cancel the movement of said object scene image captured by said imaging surface when the determination result of said first determining step is negative.

An area controlling method of an image extracting apparatus which extracts a partial object scene image belonging to a specific area out of an object scene image captured by an imaging surface, including:

• a first determining step for determining whether or not the movement of the object scene image captured by said imaging surface satisfies a pan/tilt condition;
• a second determining step for determining whether or not the movement of the object scene image captured by said imaging surface satisfies a camera-shake condition referring to a threshold value;
• a setting step for setting a large numerical value to said threshold value as a zoom magnification is high;
• a first activating step for activating said second determining step in place of said first determining step when a determination result of said first determining step is affirmative;
• a second activating step for activating said first determining step in place of said second determining step when a determination result of said second determining step is affirmative;
• and
• a moving step for moving said specific area within said imaging surface in such a direction as to cancel the movement of said object scene image captured by said imaging surface when the determination result of said first determining step is negative.

A video camera, comprising:

• an imager for capturing an object scene image through a lens;
• a first determiner for determining whether or not a movement of a camera housing satisfies a pan/tilt condition;
• a second determiner for determining whether or not a movement of said camera housing satisfies a camera-shake condition referring to a threshold value;
• a first activator for activating said second determiner in place of said first determiner when a determination result of said first determiner is affirmative;
• a second activator for activating said first determiner in place of said second determiner when a determination result of said second determiner is affirmative;
• a setter for setting a large numerical value to said threshold value as a zoom magnification is high;
• and
• a changer for changing a positional relationship between said lens and said imager in such a direction as to cancel the movement of said object scene image captured by said imager when a determination result of said first determiner is negative.

An imaging control program executed by a processor of a video camera having an imager for capturing an object scene image through a lens, comprising:

• a first determining step for determining whether or not a movement of a camera housing satisfies a pan/tilt condition;
• a second determining step for determining whether or not the movement of said camera housing satisfies a camera-shake condition referring to a threshold value;
• a first activating step for activating said second determining step in place of said first determining step when a determination result of said first determining step is affirmative;
• a second activating step for activating said first determining step in place of said second determining step when a determination result of said second determining step is affirmative;
• a setting step for setting a large numerical value to said threshold value as a zoom magnification is high;
• and
• a changing step for changing a positional relationship between said lens and said imager in such a direction as to cancel the movement of said object scene image captured by said imager when a determination result of said first determining step is negative.

An imaging control method of a video camera having an imager for fetching an object scene image through a lens, comprising:

• a first determining step for determining whether or not a movement of a camera housing satisfies a pan/tilt condition;
• a second determining step for determining whether or not the movement of said camera housing satisfies a camera-shake condition referring to a threshold value;
• a first activating step for activating said second determining step in place of said first determining step when a determination result of said first determining step is affirmative;
• a second activating step for activating said first determining step in place of said second determining step when a determination result of said second determining step is affirmative;
• a setting step for setting a large numerical value to said threshold value as a zoom magnification is high;
• and
• a changing step for changing a positional relationship between said lens and said imager in such a direction as to cancel the movement of said object scene image captured by said imager when the determination result of said first determining step is negative.