Abstract: A retainer apparatus includes a post having a first end to be received by an opening of a wall plate cover of an outlet and a second end opposite the first end. At least a portion of the post has a plurality of grooves positioned between the first end and the second end. The plurality of grooves forming a retainer-receiving portion. A plug retainer is moveably coupled to the post. The plug retainer to slide along the retainer-receiving portion in a linear direction relative to the grooves when the plug retainer is moved relative to the retainer-receiving portion of the post.

Abstract: Example apparatus disclosed herein includes a grouper to generate a first presence indication based on a threshold number of segments of image data including patterns of light values corresponding to a first human pulse. Disclosed example apparatus also include a face identifier to identify a first location associated with a human face in an environment associated with the image data based on thermal imaging data from a thermal imaging device, and output the first location associated with the human face in the environment associated with the image data.

Abstract: Example retainer apparatus and related methods are disclosed. An example retainer apparatus disclosed herein includes a post having a first end to be received by an opening of a wall plate cover of an outlet and a second end opposite the first end. At least a portion of the post has a plurality of grooves positioned between the first end and the second end. The plurality of grooves forming a retainer-receiving portion. A plug retainer is moveably coupled to the post. The plug retainer to slide along the retainer-receiving portion in a linear direction relative to the grooves when the plug retainer is moved relative to the retainer-receiving portion of the post.

Abstract: Example retainer apparatus and related methods are disclosed. An example retainer apparatus disclosed herein includes a post having a first end attachable to a wall plate cover opening of an outlet and a second end opposite the first end. The example retainer apparatus also includes a plug retainer to be removably coupled to the post. The plug retainer of the example retainer apparatus is to move relative to the post between the first end of the post and the second end of the post.

Abstract: Example apparatus disclosed herein includes a grouper to generate a first presence indication based on a threshold number of segments of image data including patterns of light values corresponding to a first human pulse. Disclosed example apparatus also include a face identifier to identify a first location associated with a human face in an environment associated with the image data based on thermal imaging data from a thermal imaging device, and output the first location associated with the human face in the environment associated with the image data.

Abstract: Example retainer apparatus and related methods are disclosed. An example retainer apparatus disclosed herein includes a post having a first end attachable to a wall plate cover opening of an outlet and a second end opposite the first end. The example retainer apparatus also includes a plug retainer to be removably coupled to the post. The plug retainer of the example retainer apparatus is to move relative to the post between the first end of the post and the second end of the post.

Abstract: Example apparatus disclosed herein include processor circuitry and memory including machine executable instructions which, when executed, cause the processor circuitry to generate a first presence indication based on a threshold number of portions of an image including a first human pulse waveform. The example instructions, when executed, also cause the processor circuitry to identify a first location associated with a face in the image based on thermal imaging data, and adjust a first count based on a comparison of the first location associated with the face and a second location associated with the first presence indication.

Abstract: Example apparatus disclosed herein include processor circuitry and memory including machine executable instructions which, when executed, cause the processor circuitry to generate a first presence indication based on a threshold number of portions of an image including a first human pulse waveform. The example instructions, when executed, also cause the processor circuitry to identify a first location associated with a face in the image based on thermal imaging data, and adjust a first count based on a comparison of the first location associated with the face and a second location associated with the first presence indication.

Abstract: Methods and apparatus to detect people are disclosed. An example method includes detecting a first human pulse waveform in first light information associated with a first one of a plurality of segments of an environment, the light information obtained from a light sensor. Generating a first presence indication in response to respective light information associated with a threshold amount of the segments proximate the first one of the segments includes the first human pulse waveform identified in the first one of the segments. Identifying a first location associated with a face in the environment using thermal imaging data from a thermal sensor. Adjusting a people count in response to the first location associated with the face not corresponding to a second location associated with the first presence indication.

Abstract: Methods and apparatus to detect people are disclosed. An example method includes detecting a first human pulse waveform in first light information associated with a first one of a plurality of segments of an environment, the light information obtained from a light sensor. Generating a first presence indication in response to respective light information associated with a threshold amount of the segments proximate the first one of the segments includes the first human pulse waveform identified in the first one of the segments. Identifying a first location associated with a face in the environment using thermal imaging data from a thermal sensor. Adjusting a people count in response to the first location associated with the face not corresponding to a second location associated with the first presence indication.

Abstract: Methods and apparatus to detect people are disclosed. An example apparatus includes a receiver to obtain respective light information for a plurality of segments of an image, each of the segments corresponding to a portion of a media exposure environment; a pulse identifier to detect a first human pulse pattern in the light information associated with a first one of the segments; and a grouper to determine whether the light information associated with a threshold amount of the segments proximate the first one of the segments includes the first human pulse pattern identified in the first one of the segments, and to generate a presence indication when the light information associated with the threshold amount of the segments proximate the first segment includes the first human pulse pattern.

Abstract: Methods and apparatus to detect people are disclosed. An example apparatus includes a receiver to obtain respective light information for a plurality of segments of an image, each of the segments corresponding to a portion of a media exposure environment; a pulse identifier to detect a first human pulse pattern in the light information associated with a first one of the segments; and a grouper to determine whether the light information associated with a threshold amount of the segments proximate the first one of the segments includes the first human pulse pattern identified in the first one of the segments, and to generate a presence indication when the light information associated with the threshold amount of the segments proximate the first segment includes the first human pulse pattern.

Abstract: Apparatus and methods to determine in-aisle locations in monitored environments are disclosed. An example apparatus includes first and second sensors in communication with a location meter. The first sensor is to detect (1) a first sequence of position indicators when the location meter is moving along an aisle of a monitored environment in a first direction, or (2) a second sequence of the position indicators when the location meter is moving along the aisle in a second direction opposite the first direction. The second sensor is to detect (1) the second sequence of position indicators when the location meter is moving along the aisle in the first direction, or (2) the first sequence of the position indicators when the location meter is moving along the aisle in the second direction. An in-aisle position of the location meter is to be determined based on the first and second sequences of position indicators.

Abstract: Example methods and apparatus for auditing signage are disclosed. A disclosed example method involves directing an operator to a signage location and capturing an image of a signage at the signage location. The example method also includes detecting an actual characteristic of the signage based on the image and comparing the actual characteristic to an expected characteristic.