Abstract: A method includes the steps of obtaining a frame from an image sensor, the frame comprising a number of pixel values, detecting a change in a first subset of the pixel values, detecting a change in the second subset of the pixel values near the first subset of the pixel values, and determining an occupancy state based on a relationship between the change in the first subset of the pixel values and the second subset of the pixel values. The occupancy state may be determined to be occupied when the change in the first subset of the pixel values is in a first direction and the change in the second subset of the pixel values is in a second direction opposite the first direction.

Abstract: An image sensor includes an active pixel array including a number of pixels and image sensor control circuitry configured to perform a read operation only on a subset of the pixels of the active pixel array such that pixels not in the subset remain inactive. By reading out only the subset of pixels in the active pixel array and keeping the remaining pixels inactive, the temperature of the active pixel array may be reduced compared to a conventional read out process, thereby reducing thermal noise in the resulting pixel data.

Abstract: Computer implemented systems and methods for providing dynamic lighting through lighting fixtures are provided herein. In one aspect, one or more characteristics of light provided from a lighting fixture or a plurality of lighting fixtures changes over time to shape the environment of an indoor space according to simulated environment illumination parameters and general illumination parameters. Dynamic lighting may improve the health or wellbeing of individuals in an indoor space, for example, by simulating an outdoor environment to reduce stress, by providing circadian entrainment to improve sleep and wakefulness, or the like. Other aspects of the present disclosure enable lighting fixtures to provide light that is synchronized with one or more other devices that simulate an environment and shape the environment of an indoor space.

Abstract: Systems and methods for providing dynamic lighting are provided. In an exemplary aspect, one or more characteristics of light provided from a lighting device or a group of lighting devices changes over time to shape the environment of an indoor space according to dynamic lighting instructions. Dynamic lighting may improve the health or wellbeing of individuals in an indoor space, for example, by simulating an outdoor environment to reduce stress, by providing circadian entrainment to improve sleep and wakefulness, or the like. Other aspects of the present disclosure enable lighting devices to provide light that is synchronized with one or more other devices and does not significantly drift over time so that the lighting devices can provide seamless dynamic lighting experiences that shape the environment of an indoor space.

Abstract: A method includes the steps of obtaining a frame from an image sensor, the frame comprising a number of pixel values, detecting a change in a first subset of the pixel values, detecting a change in the second subset of the pixel values near the first subset of the pixel values, and determining an occupancy state based on a relationship between the change in the first subset of the pixel values and the second subset of the pixel values. The occupancy state may be determined to be occupied when the change in the first subset of the pixel values is in a first direction and the change in the second subset of the pixel values is in a second direction opposite the first direction.

Abstract: An image sensor includes an active pixel array including a number of pixels and image sensor control circuitry configured to perform a read operation only on a subset of the pixels of the active pixel array such that pixels not in the subset remain inactive. By reading out only the subset of pixels in the active pixel array and keeping the remaining pixels inactive, the temperature of the active pixel array may be reduced compared to a conventional read out process, thereby reducing thermal noise in the resulting pixel data.

Abstract: A method includes the steps of obtaining a frame from an image sensor, the frame comprising a number of pixel values, detecting a change in a first subset of the pixel values, detecting a change in the second subset of the pixel values near the first subset of the pixel values, and determining an occupancy state based on a relationship between the change in the first subset of the pixel values and the second subset of the pixel values. The occupancy state may be determined to be occupied when the change in the first subset of the pixel values is in a first direction and the change in the second subset of the pixel values is in a second direction opposite the first direction.

Abstract: An image sensor includes an active pixel array including a number of pixels and image sensor control circuitry configured to perform a read operation only on a subset of the pixels of the active pixel array such that pixels not in the subset remain inactive. By reading out only the subset of pixels in the active pixel array and keeping the remaining pixels inactive, the temperature of the active pixel array may be reduced compared to a conventional read out process, thereby reducing thermal noise in the resulting pixel data.

Abstract: Systems and methods for providing dynamic lighting are provided. In an exemplary aspect, one or more characteristics of light provided from a lighting device or a group of lighting devices changes over time to shape the environment of an indoor space according to dynamic lighting instructions. Dynamic lighting may improve the health or wellbeing of individuals in an indoor space, for example, by simulating an outdoor environment to reduce stress, by providing circadian entrainment to improve sleep and wakefulness, or the like. Other aspects of the present disclosure enable lighting devices to provide light that is synchronized with one or more other devices and does not significantly drift over time so that the lighting devices can provide seamless dynamic lighting experiences that shape the environment of an indoor space.

Abstract: A method of operating an indoor location services system includes providing a calibration beacon signal from a calibration device at a number of calibration locations, measuring a received signal strength of the calibration beacon signal at each one of a number of receivers for each one of the number of calibration locations, measuring a received signal strength of a beacon signal provided by a locatable device at each one of the receivers, and estimating a location of the locatable device based on the received signal strength of the beacon signal at each one of the receivers, the received signal strength of the calibration beacon signal at each one of the receivers for each one of the calibration locations, and a location of each one of the receivers.

Abstract: A method of operating an indoor location services system includes providing a calibration beacon signal from a calibration device at a number of calibration locations, measuring a received signal strength of the calibration beacon signal at each one of a number of receivers for each one of the number of calibration locations, measuring a received signal strength of a beacon signal provided by a locatable device at each one of the receivers, and estimating a location of the locatable device based on the received signal strength of the beacon signal at each one of the receivers, the received signal strength of the calibration beacon signal at each one of the receivers for each one of the calibration locations, and a location of each one of the receivers.

Abstract: A method of operating an indoor location services system includes providing a calibration beacon signal from a calibration device at a number of calibration locations, measuring a received signal strength of the calibration beacon signal at each one of a number of receivers for each one of the number of calibration locations, measuring a received signal strength of a beacon signal provided by a locatable device at each one of the receivers, and estimating a location of the locatable device based on the received signal strength of the beacon signal at each one of the receivers, the received signal strength of the calibration beacon signal at each one of the receivers for each one of the calibration locations, and a location of each one of the receivers.

Abstract: An image sensor includes an active pixel array including a number of pixels and image sensor control circuitry configured to perform a read operation only on a subset of the pixels of the active pixel array such that pixels not in the subset remain inactive. By reading out only the subset of pixels in the active pixel array and keeping the remaining pixels inactive, the temperature of the active pixel array may be reduced compared to a conventional read out process, thereby reducing thermal noise in the resulting pixel data.

Abstract: A lighting fixture has a communication interface; a light source configured to provide light output for general illumination; an image sensor configured to capture image information associated of with a field of view; and control circuitry, which is configured to provide a drive signal to the light source to control the light output. In one embodiment, the control circuitry is further configured to, for each object in the field of view, determine if an object in the field of view is an occupant based on the image information; if the object is an occupant, track movement of the occupant within the field of view; and determine a number of occupants in the field of view. The control circuitry may also be configured to provide occupancy information bearing on the number of occupants in the field of view to a remote entity via the communication interface.

Abstract: A method includes the steps of obtaining a frame from an image sensor, the frame comprising a number of pixel values, detecting a change in a first subset of the pixel values, detecting a change in the second subset of the pixel values near the first subset of the pixel values, and determining an occupancy state based on a relationship between the change in the first subset of the pixel values and the second subset of the pixel values. The occupancy state may be determined to be occupied when the change in the first subset of the pixel values is in a first direction and the change in the second subset of the pixel values is in a second direction opposite the first direction.