System and method for control based on face or hand gesture detection
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-003/033
G09G-005/08
출원번호
US-0526053
(2012-06-18)
등록번호
US-8614674
(2013-12-24)
발명자
/ 주소
Binder, Yehuda
출원인 / 주소
May Patents Ltd.
대리인 / 주소
Browdy and Neimark, PLLC
인용정보
피인용 횟수 :
11인용 특허 :
278
초록▼
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 (still or video), a control signal is generated and provided to a device. The contro
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 (still or video), 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). Further, the location of the detected face in the image may be used to rotate a display screen horizontally, vertically or both, to achieve a better line of sight with a viewing person. If two or more faces are detected, the average location is calculated and used for line of sight correction. A linear feedback control loop is implemented wherein detected face deviation from the 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 wherein the various hand gestures control the various function of the controlled unit, such as a television set.
대표청구항▼
1. A television set responsive to an element in an image, the television set comprising: a flat screen for displaying television channels;a digital camera for capturing an image, said digital camera having an output port, and being operative to transmit a digital data form of the captured image via
1. A television set responsive to an element in an image, the television set comprising: a flat screen for displaying television channels;a digital camera for capturing an image, said digital camera having an output port, and being operative to transmit a digital data form of the captured image via said output port, said digital camera being fixed in position relative to said screen to be movable in unison with said screen and being oriented to capture an image of a scene substantially in front of the screen;an image processor coupled to receive the image in the digital data from said digital camera and for applying an algorithm to detect the element in the captured image;a connector for connecting to a cable that is connectable to simultaneously carry over the same wires in the cable a digital data signal and an DC or AC power signal;a wired transceiver coupled between said digital camera output port and said connector for transmitting the digital data form of the captured image over the cable;a power/data splitter arrangement having first, second and third ports; only the digital data form of the captured image signal is passed between said first and second ports; only the power signal is passed between said first and third ports; and said first port is coupled to said connector; anda single enclosure housing said flat screen, said digital camera, said image processor, said connector and said wired transceiver, wherein information is displayed on said flat screen in response to the detection of the element in the captured image. 2. The television set according to claim 1, wherein said digital camera comprises: an optical lens for focusing received light, a photosensitive image sensor array disposed approximately at an image focal point plane of the optical lens for capturing the image and producing an analog form of the captured image; andan analog-to-digital (A/D) converter coupled to said image sensor for generating the digital data form of the captured image. 3. The television set according to claim 2 wherein said image sensor array is based on multiple Charge-Coupled Devices (CCD) or Complementary Metal-Oxide-Semiconductor (CMOS) based components. 4. The television set according to claim 1, wherein the element is an image of a human face, and said image processor applies a face detection algorithm to detect an existence and a position of the human face in the captured image. 5. The television set according to claim 1, wherein the element is an image of a human hand, and said image processor applies a hand gesture algorithm to detect an existence and a position of a hand gesture in the captured image. 6. The television set according to claim 5, wherein said image processor further applies a face detection algorithm to detect an existence and a position of a human face in the captured image. 7. The television set according to claim 6, wherein the detection algorithm of the hand gesture is based on the position of the human face detected in the captured image. 8. The television set according to claim 5, wherein the hand gesture includes extending a single finger. 9. The television set according to claim 5, wherein the hand gesture includes extending multiple fingers. 10. The television set according to claim 5, wherein the hand gesture includes extending all fingers of one hand. 11. The television set according to claim 1, further comprising a timer associated with a pre-set time period, and wherein said screen is blanked in response to not detecting the element in the captured image during the pre-set time period. 12. The television set according to claim 1, wherein the information is displayed on said screen in response to a detected position of the detected element in the captured image. 13. The television set according to claim 1, further responsive to a deviation between the position of the detected element in the captured image and a center of the image. 14. The television set according to claim 1, further connected for displaying multiple television channels, and wherein a television channel is selected to be displayed on said screen in response to the detection of the element in the captured image. 15. The television set according to claim 1, wherein said image processor comprises firmware or software and a processor to execute said firmware or software. 16. The television set according to claim 1, wherein a power is supplied to a load in response to the detection of the element in the captured image. 17. The television set according to claim 16, further comprising a switch connected to be actuated in response to the detection of the element in the captured image. 18. The television set according to claim 1, wherein: the cable is a Local Area Network (LAN) cable forming part of a LAN; said connector is a LAN connector; and said wired transceiver is a LAN transceiver. 19. The television set according to claim 18, wherein the LAN is an Ethernet-based LAN, that is according to, or based on, IEEE 802.3-2008 standard. 20. The television set according to claim 19, wherein: the LAN cable is based on twisted-pair copper cables; said LAN transceiver is according to, or based on, 10Base-T, 100Base-TX, or 1000Base-T; and said LAN connector is RJ-45 type. 21. The television set according to claim 1, further operative to supply at least part of the power signal. 22. The television set according to claim 1, further operative to at least in part be powered from the power signal. 23. The television set according to claim 1, wherein the power and digital data signals are carried using Frequency Division/Domain Multiplexing (FDM), where the digital data signal is carried in a frequency band above and distinct from the power signal frequency or frequency band. 24. The television set according to claim 23, wherein said power/data splitter comprises a high pass filter between said first and second ports and a low pass filter between said first and third ports. 25. The television set according to claim 24, wherein said power/data splitter comprising a transformer and a capacitor connected to the transformer windings. 26. The television set according to claim 1, wherein the power and digital data are carried using a phantom scheme. 27. The television set according to claim 26, wherein said power/data splitter comprises at least two transformers each having a center-tap connection. 28. The television set according to claim 1, wherein the power and digital data signals are carried substantially according to IEEE 802.3af-2003 or IEEE 802.3at-2009 standard. 29. The television set according to claim 1, further comprising an image or video compressor coupled between said digital camera output port and said wired transceiver, for compressing the captured image digital data according to a compression scheme. 30. The television set according to claim 29, wherein the compression scheme is a lossy or lossless type. 31. The television set according to claim 29, wherein the compression scheme is according to, or based on, JPEG (Joint Photographic Experts Group) and MPEG (Moving Picture Experts Group) standard. 32. The television set according to claim 1, wherein said flat screen is silicon-based. 33. The television set according to claim 32 wherein said flat screen is LCD (Liquid Crystal Display) or TFT (Thin-Film Transistor) based. 34. The television set according to claim 1, further operative for displaying High Definition (HD), and wherein said television set further comprises an HDMI (High-Definition Multimedia Interface) for receiving and displaying HD video.
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