SYSTEM AND METHOD FOR CONTROL BASED ON FACE ORE HAND GESTURE DETECTION
First Claim
1. A computer implemented method for improving the angular field of view for a person watching an image on a screen, the method comprising:
- (a) capturing an image of a scene in front of the screen;
(b) converting the image into a digital data form;
(c) detecting the position of an image of a human face in the captured image;
(d) calculating at least one deviation between the detected position of the human face image in the captured image and an imaginary line that passes through the center of the image on the screen and extends substantially perpendicular to the screen; and
(e) rotating the screen in a direction to reduce the calculated deviation.
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Abstract
System and method for control using face detection or hand gesture detection algorithms in a captured image. Based on the existence of a detected human face or a hand gesture in an image captured by a digital camera, a control signal is generated and provided to a device. The control may provide power or disconnect power supply to the device (or part of the device circuits). The location of the detected face in the image may be used to rotate a display screen to achieve a better line of sight with a viewing person. The difference between the location of the detected face and an optimum is the error to be corrected by rotating the display to the required angular position. A hand gesture detection can be used as a replacement to a remote control for the controlled unit, such as a television set.
227 Citations
97 Claims
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1. A computer implemented method for improving the angular field of view for a person watching an image on a screen, the method comprising:
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(a) capturing an image of a scene in front of the screen; (b) converting the image into a digital data form; (c) detecting the position of an image of a human face in the captured image; (d) calculating at least one deviation between the detected position of the human face image in the captured image and an imaginary line that passes through the center of the image on the screen and extends substantially perpendicular to the screen; and (e) rotating the screen in a direction to reduce the calculated deviation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for improving the angular field of view for a person watching a display on a screen, said apparatus comprising:
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a digital camera for capturing an image in digital data form, said camera being fixed in position relative to the screen and oriented to capture an image of the scene substantially in front of the screen; an image processor coupled to receive the image in digital data form from said digital camera, for applying face detection algorithm to detect and locate an image of a human face in the captured image; and a motor mechanically attached to the screen for angularly rotating the screen; wherein said apparatus is operative to rotate said motor in response to the location of the detected image of a face in the captured image. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer implemented method for controlling a device based on face detection, the method comprising the steps of
(a) capturing an image of a scene; -
(b) converting the image into a digital data form; (c) detecting an image of a human face in the captured image; and (d) providing a first control signal associated with the detection of the human face image in the captured image. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An apparatus for face detection based control of a device, said apparatus comprising:
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a digital camera for capturing an image in a digital data form; an image processor coupled to receive the image in a digital data form from said digital camera, for applying a face detection algorithm to detect the position of a human face image in the captured image; and a controller coupled to said image processor for generating a control signal in response to the detection or non-detection of a human face image in the captured image. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A computer implemented method for controlling a device based on hand gesture detection, said method comprising:
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(a) capturing an image with a camera; (b) electronically converting the image into a digital data form; (c) detecting a hand gesture image in said captured image by use of a computer running a detecting algorithm; and (d) producing a control signal in response to the detection of a hand gesture image in the captured image. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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74. An apparatus for hand gesture detection based control of a device, said apparatus comprising:
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a digital camera for capturing an image in a digital data form; an image processor coupled to receive said image in a digital data form from said digital camera, for running a hand gesture detection algorithm to detect a hand gesture image in the captured image; and a controller coupled to said image processor for generating a control signal in response to the detection or non-detection of a hand gesture image in the captured image. - View Dependent Claims (75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97)
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Specification