Methods and apparatus to count persons in a monitored environment
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06K-009/66
출원번호
US-0537955
(2009-08-07)
등록번호
US-8411963
(2013-04-02)
발명자
/ 주소
Luff, Robert A.
출원인 / 주소
The Nielsen Company (U.S.), LLC
대리인 / 주소
Hanley, Flight & Zimmerman, LLC
인용정보
피인용 횟수 :
161인용 특허 :
85
초록▼
Methods and apparatus to count persons in a monitored environment are disclosed. An example apparatus to count the number of people in a monitored environment is described, which includes an image sensor having a plurality of pixels, a pseudorandom number generator to generate pseudorandom coordinat
Methods and apparatus to count persons in a monitored environment are disclosed. An example apparatus to count the number of people in a monitored environment is described, which includes an image sensor having a plurality of pixels, a pseudorandom number generator to generate pseudorandom coordinates, a reader to read first pixel data generated by a first pixel of the image sensor at a first time, the first pixel corresponding to the pseudorandom coordinates, a comparator to compare the first pixel data with second pixel data generated by the first pixel at a second time different from the first time to generate a change value, and a counter configured to generate a count of persons based at least on the change value.
대표청구항▼
1. An apparatus to count a number of persons in a monitored environment, comprising: an image sensor to collect a plurality of pixels;a pseudorandom number generator configured to generate sets of pseudorandom coordinates;a reader to read first pixel data generated by first pixels of the image senso
1. An apparatus to count a number of persons in a monitored environment, comprising: an image sensor to collect a plurality of pixels;a pseudorandom number generator configured to generate sets of pseudorandom coordinates;a reader to read first pixel data generated by first pixels of the image sensor at corresponding first times, the first pixels corresponding to respective sets of the pseudorandom coordinates;a comparator to compare the first pixel data with second pixel data generated by the first pixels at respective second times different from the first times to generate first change values; anda counter to generate a count of persons based on the first change values. 2. An apparatus as defined in claim 1, further comprising a storage device to store the change values and the sets of coordinates corresponding to the first pixels. 3. An apparatus as defined in claim 2, wherein the storage device is to store one or more counts of audience members. 4. An apparatus as defined in claim 1, wherein the counter is to map the change values to facilitate detection of motion indicative of a person. 5. An apparatus as defined in claim 4, wherein the counter comprises a map interpolator to obtain second change values based on the first change values. 6. An apparatus as defined in claim 5, wherein the map interpolator is to generate the second value values by interpolating the first change values. 7. An apparatus as defined in claim 1, wherein the counter comprises a blob discriminator to determine one or more blobs based on the first change values. 8. An apparatus as defined in claim 7, wherein the blob discriminator is to determine whether at least one of the blobs is indicative of a plurality of persons. 9. An apparatus as defined in claim 7, wherein the counter further comprises a non-human filter to determine whether the one or more blobs does not represent a person. 10. An apparatus as defined in claim 1, wherein the counter comprises a high-motion filter to determine whether the first change values are indicative of a high-motion event. 11. An apparatus as defined in claim 1, wherein the first pixel data comprises a brightness value and a color value. 12. An apparatus as defined in claim 1, further comprising a count comparator to determine whether the count of persons is equal to a previous count of persons. 13. A method to count a number of persons in a monitored environment, comprising: pseudorandomly selecting first pixels from a plurality of pixels in an image sensor at corresponding first times;collecting first information sensed by the first pixels at the first times;comparing the first information to second information sensed by the first pixels at corresponding second times different from the first times to generate first change values; anddetermining whether the change values are indicative of a person being present in the monitored environment. 14. A method as defined in claim 13, further comprising pseudorandomly selecting second pixels from the plurality of pixels, collecting third information sensed by the second pixels, and comparing the third information to fourth information sensed by the second pixels to generate second change values. 15. A method as defined in claim 14, wherein determining whether the first change values are indicative of the person further comprises determining whether the first and second change values in combination are indicative of the person in the monitored environment. 16. A method as defined in claim 15, further comprising determining whether the second change values are indicative of a second person in the monitored environment. 17. A method as defined in claim 13, wherein pseudorandomly selecting the first pixels comprises generating pseudorandom coordinates corresponding to respective locations of the first pixels within the plurality of pixels. 18. A method as defined in claim 13, further comprising placing the first change values in a map. 19. A method as defined in claim 13, further comprising determining whether the first change values are indicative of a high-motion event. 20. A tangible storage medium comprising instructions, which, upon execution, cause a machine to at least: pseudorandomly select first pixels from a plurality of pixels in an image sensor at corresponding first times;collect first information sensed by the first pixels at the first times;compare the first information to second information sensed by the first pixels at corresponding second times different from the first times to generate first change values; anddetermine whether the change values are indicative of a person being present in a monitored environment. 21. A storage medium as defined in claim 20, wherein the instructions further cause the machine to pseudorandomly select second pixels from the plurality of pixels, collect third information sensed by the second pixels, and compare the third information to fourth information sensed by the second pixels to generate second change values. 22. A storage medium as defined in claim 21, wherein the instructions are to cause the machine to determine whether the first change values are indicative of the person by determining whether the first and second change values in combination are indicative of the person in the monitored environment. 23. A storage medium as defined in claim 20, wherein the instructions are to cause the machine to pseudorandomly select the first pixel by generating one or more pseudorandom coordinates corresponding to respective locations of the first pixels within the plurality of pixels. 24. A storage medium as defined in claim 20, wherein the instructions are further to cause the machine to place the first change values in a map. 25. A storage medium as defined in claim 24, wherein the instructions are further to cause the machine to process the map to determine a count of persons present in the map.
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Bell, Douglas; Leabman, Michael, Method for automatically testing the operational status of a wireless power receiver in a wireless power transmission system.
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Leabman, Michael A., Systems and methods for generating and transmitting wireless power transmission waves using antennas having a spacing that is selected by the transmitter.
Leabman, Michael, Systems and methods for identifying receivers in a transmission field by transmitting exploratory power waves towards different segments of a transmission field.
Bell, Douglas; Leabman, Michael, Systems and methods for managing and controlling a wireless power network by establishing time intervals during which receivers communicate with a transmitter.
Bell, Douglas; Leabman, Michael, Systems and methods for manually adjusting when receiving electronic devices are scheduled to receive wirelessly delivered power from a wireless power transmitter in a wireless power network.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for maximizing wireless power transfer efficiency by instructing a user to change a receiver device's position.
Leabman, Michael A., Systems and methods for preconfiguring transmission devices for power wave transmissions based on location data of one or more receivers.
Bell, Douglas; Leabman, Michael A., Systems and methods for real or near real time wireless communications between a wireless power transmitter and a wireless power receiver.
Bell, Douglas; Leabman, Michael A., Systems and methods for real time or near real time wireless communications between a wireless power transmitter and a wireless power receiver.
Bell, Douglas; Leabman, Michael, Systems and methods for selecting which power transmitter should deliver wireless power to a receiving device in a wireless power delivery network.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for using a predetermined number of communication channels of a wireless power transmitter to communicate with different wireless power receivers.
Bell, Douglas; Leabman, Michael, Systems and methods for using a transmitter access policy at a network service to determine whether to provide power to wireless power receivers in a wireless power network.
Bell, Douglas; Leabman, Michael, Systems and methods for using application programming interfaces to control communications between a transmitter and a receiver.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for wireless power transmission by comparing voltage levels associated with power waves transmitted by antennas of a plurality of antennas of a transmitter to determine appropriate phase adjustments for the power waves.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for wireless power transmission by modifying a number of antenna elements used to transmit power waves to a receiver.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods for wirelessly delivering power to electronic devices that are unable to communicate with a transmitter.
Leabman, Michael, Systems and methods for wirelessly transmitting power from a transmitter to a receiver by determining refined locations of the receiver in a segmented transmission field associated with the transmitter.
Leabman, Michael A.; Brewer, Gregory Scott, Systems and methods of transmitting power transmission waves based on signals received at first and second subsets of a transmitter's antenna array.
Hosseini, Alister; Leabman, Michael A., Systems, methods, and devices for using a battery as a antenna for receiving wirelessly delivered power from radio frequency power waves.
Leabman, Michael; Brewer, Gregory Scott, Wireless power delivery using a base station to control operations of a plurality of wireless power transmitters.
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Leabman, Michael A.; Brewer, Gregory Scott, Wireless power transmitters for transmitting wireless power and tracking whether wireless power receivers are within authorized locations.
Leabman, Michael A.; Brewer, Gregory Scott, Wireless power transmitters that transmit at determined times based on power availability and consumption at a receiving mobile device.
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