Abstract: A method for estimating a number of people currently in a region of interest include analyzing a video stream to detect each of a plurality of people within the region of interest as One or more neighbor pairs are identified from among a plurality of possible pairs of the plurality of people within the region of interest. The detected plurality of people may be clustered into one or more clusters based at least in part on the identified one or more neighboring pairs. An estimated number of people in each of the one or more clusters is determined and a representation of the estimated number of people in each of one or more of the clusters is displayed on a display.

Abstract: A video monitoring system includes a video monitoring wall that is configured to display a plurality of video streams. One or more cameras are disposed relative to the video monitoring wall. One or more directional speakers are disposed relative to the video monitoring wall such that each of the one or more directional speakers is directed toward a corresponding location on the viewing side of the video monitoring wall. A controller is configured to identify that a desired action should be taken by a particular operator, based at least in part on the one or more video streams assigned to the particular operator. The controller is configured to analyze one or more local video streams from the cameras to ascertain a current location of the particular operator and to direct an audio message to the current location of the operator using one or more of the directional speakers.

Abstract: An access control system includes a lock that releasably locks an access gate and is configured to be releasably unlocked upon receiving an unlock signal. An access control device is deployable proximate the access gate and includes a housing that houses a camera configured to capture one or more images of persons in front of the access gate, a wireless transceiver, and a controller that is operably coupled with the camera and the wireless transceiver. The controller is configured to receive an access code from a mobile device carried by a person in front of the access gate and to identify whether the person with that access code is authorized to enter through the access gate. When confirmed, the controller is configured to provide the unlock signal to the lock to unlock the access gate when confirmed, and to not provide the unlock signal when not confirmed.

Abstract: Methods and systems for maintaining a healthy building. In one example, an access card reader for controlling access to a secure area may comprise a card reader for reading an access card identifier from an access card presented by a user, a touchless thermal sensor for sensing a skin temperature of the user, a memory, and a controller operatively coupled to the card reader, the touchless thermal sensor and the memory. In response to a user presenting an access card to the card reader, the controller may be configured to store in the memory the access card identifier read by the card reader along with a corresponding skin temperature of the user.

Abstract: A method for reducing alarm notifications from a security system deploying a plurality of cameras within a monitored area includes processing a first video stream captured by the first camera of the security system to detect an alarm event observed in the Field of View (FOV) of the first camera and processing a second video stream captured by a second camera of the security system to detect the same alarm event observed in the FOV of the second camera. A combined alarm notification corresponding to the alarm event is sent, wherein the combined alarm notification includes the alarm event and may identify the first camera and the second camera as both detecting the same alarm event in their respective FOVs.

Abstract: Improving performance of a video analytics algorithm includes obtaining desired video parameters for achieving a desired accuracy level, and identifying one or more of the video parameters of the video stream. One or more of the video parameters are compared with a corresponding one of the desired video parameters to ascertain whether one or more of the video parameters diverge from the corresponding one of the desired video parameters by at least a threshold amount. When one or more of the video parameters diverge from the corresponding one of the desired video parameters by at least the threshold amount, one or more of the video parameters are adjusted toward the corresponding one of the desired video parameters.

Abstract: Methods and systems for maintaining a healthy building. In one example, an access card reader for controlling access to a secure area may comprise a card reader for reading an access card identifier from an access card presented by a user, a touchless thermal sensor for sensing a skin temperature of the user, a memory, and a controller operatively coupled to the card reader, the touchless thermal sensor and the memory. In response to a user presenting an access card to the card reader, the controller may be configured to store in the memory the access card identifier read by the card reader along with a corresponding skin temperature of the user. In another example, a system may be configured to perform contact tracing when an occupant has been identified as displaying signs of an illness.

Abstract: Methods and systems for identifying abnormal sounds in a particular environment. A normal audio stream obtained in the absence of abnormal sounds may be used as a baseline for subsequently processing an incoming audio stream with a processor to determine whether the incoming audio stream from the microphone in the particular environment includes an abnormal audio event for the particular environment. When it is determined that the incoming audio stream includes an abnormal audio event for the particular environment an electronic database may be accessed to determine a location of the abnormal audio event in the particular environment. A video camera with a field of view that includes the location of the abnormal audio event in the particular environment may be identified and the video stream from the identified video camera retrieved and displayed.

Abstract: A surveillance monitoring system may use a camera to detect any viewing faces visible within viewing sight of a monitor and determine whether the detected viewing faces belong to authorized individuals who are authorized to view video surveillance footage on the monitor or if any of the detected viewing faces belong to individuals who are not authorized to view video surveillance footage on the monitor. When the detected viewing faces belong only to authorized individuals, the surveillance monitoring system continues to display the video surveillance footage that includes identifiable faces without anonymizing the identifiable faces. When the detected viewing faces also include unauthorized individuals, the surveillance monitoring system may continue to display the video surveillance footage, but the surveillance monitoring system may automatically anonymize one or more of the identifiable faces seen in the video surveillance footage.

Abstract: Erratic behavior of one or more people within a video stream may be ascertained by analyzing the video stream to detect one or more people and to determine a measure of size of each of the detected people. A movement speed of each of the detected people is determined, and is normalized with respect to the determined measure of size of that person. An average of the movement speeds of all of the detected people is determined. The average of the movement speeds of all of the detected people is compared to an ambient speed. A determination is made that erratic behavior exists when the average of the movement speeds exceeds the ambient speed by at least a threshold.

Abstract: A surveillance monitoring system may use a camera to detect any viewing faces visible within viewing sight of a monitor and determine whether the detected viewing faces belong to authorized individuals who are authorized to view video surveillance footage on the monitor or if any of the detected viewing faces belong to individuals who are not authorized to view video surveillance footage on the monitor. When the detected viewing faces belong only to authorized individuals, the surveillance monitoring system continues to display the video surveillance footage that includes identifiable faces without anonymizing the identifiable faces. When the detected viewing faces also include unauthorized individuals, the surveillance monitoring system may continue to display the video surveillance footage, but the surveillance monitoring system may automatically anonymize one or more of the identifiable faces seen in the video surveillance footage.

Abstract: During a deployment phase, each worker that enters a secure area is identified. The behavior of each worker is monitored while the worker is in the secure area in order to develop an Artificial Intelligence (AI) model that is specific to each worker and is representative of at least part of the behavior of the corresponding worker in the secure area. During an operational phase, each worker that enters the secure area is identified. The behavior of each worker is monitored while the worker is in the secure area. The current behavior of each worker in the secure area is compared with the behavior represented by the AI model that corresponds to the worker. An alarm is raised when the current behavior of one or more workers diverges from the behavior represented by the AI model that corresponds to the worker.

Abstract: An event of interest may be tracked using a distributed intelligence video surveillance system. The distributed intelligence video surveillance system includes a lead video camera and a plurality of child video cameras that are configured to communicate with the lead video camera. One of the plurality of child video cameras may receive a video image and perform analytics and event generation for any events of interest found within the video image. The child video camera extracts metadata for any found events of interest and communicates the extracted metadata to the lead video camera. The lead video camera communicates the extracted metadata to others of the plurality of child video cameras so that the others of the plurality of child video cameras can be alerted to track the found events of interest.

Abstract: A method for estimating a number of people currently in a region of interest include analyzing a video stream to detect each of a plurality of people within the region of interest as One or more neighbor pairs are identified from among a plurality of possible pairs of the plurality of people within the region of interest. The detected plurality of people may be clustered into one or more clusters based at least in part on the identified one or more neighboring pairs. An estimated number of people in each of the one or more clusters is determined and a representation of the estimated number of people in each of one or more of the clusters is displayed on a display.

Abstract: A method for monitoring a surveillance area includes receiving a plurality of video streams that are captured by a plurality of video cameras in the surveillance area, each of the plurality of video streams capturing one or more objects in the surveillance area that are within a camera field of view (FOV) of the corresponding video camera and from a camera vantage point of the corresponding video camera. A vantage point transformation is applied to each of two or more objects captured in two or more of the plurality of video streams, the vantage point transformation transforming a view of each of the two or more objects from the camera vantage point of the corresponding video camera to a common vantage point. The transformed view of each of the two or more objects from the common vantage point is rendered on a display.

Abstract: Methods and systems for identifying abnormal sounds in a particular environment. A normal audio stream obtained in the absence of abnormal sounds may be used as a baseline for subsequently processing an incoming audio stream with a processor to determine whether the incoming audio stream from the microphone in the particular environment includes an abnormal audio event for the particular environment. When it is determined that the incoming audio stream includes an abnormal audio event for the particular environment an electronic database may be accessed to determine a location of the abnormal audio event in the particular environment. A video camera with a field of view that includes the location of the abnormal audio event in the particular environment may be identified and the video stream from the identified video camera retrieved and displayed.

Abstract: Methods and systems for location tracking or maintaining a count of people in a building or space. An illustrative method may include storing a background image of a field of view of a video camera and receiving a video stream from the video camera. Background subtraction may be performed to identify one or more blobs in the field of view of the video camera. The size of the one or more blobs may be compared to an expected size of the blob at a similar distance from the camera. When the size of the blob is greater than the expected size of a person at the determined distance of the corresponding blob by more than a predetermined threshold the blob may be counted as two or more people.

Abstract: A contact tracing system and method identifies which persons at a facility may have been exposed to a possibly contagious person. In some examples, multiple sensors, such as access card readers and cameras with video and thermographic imaging, monitor individuals at the facility. For each person, the system collects data pertaining to an individual's location and/or temperature at discrete points in time. In addition to collecting data throughout the day, data is also collected over an extended period of days or weeks. Based on data recorded during the extended periods, the system determines each person's typical schedule and travel pattern through the facility. When one or more sensors detect a possibly contagious person by sensing a fever, or even a gradually rising body temperature, the system searches for person's whose typical schedule and travel patterns overlap with those of the contagious person. The system then automatically notifies people accordingly.

Abstract: Methods and systems for reducing a risk of spread of an illness in a building. In one example, a method for monitoring a risk of spread of an illness in a building may comprise capturing video of a surveilled area in the building, identifying individuals in the captured video and performing behavior analytics on the individuals identified in the captured video. The behavior analytics may include determining a risky behavior metric that identifies a measure of risky behavior of the individuals identified in the captured video that is based at least in part on a distance between two of the individuals identified in the captured video and a time that the distance between the two of the individuals is below a predetermined distance threshold. An alert may be issued when the risky behavior metric exceeds a risk threshold.

Abstract: Methods and systems for maintaining a healthy building. In one example, an access card reader for controlling access to a secure area may comprise a card reader for reading an access card identifier from an access card presented by a user, a touchless thermal sensor for sensing a skin temperature of the user, a memory, and a controller operatively coupled to the card reader, the touchless thermal sensor and the memory. In response to a user presenting an access card to the card reader, the controller may be configured to store in the memory the access card identifier read by the card reader along with a corresponding skin temperature of the user.