Abstract: Aspects and embodiments are generally directed to an imaging system and methods for correcting geometric distortion induced by rolling-shutter operation of framing sensors. In one example, a method includes the acts of developing a DtoN mapping from a distorted image space to a normalized image space for initial pixels of the rolling-shutter framing sensor, developing an NtoD mapping from the normalized image space to the distorted image space for repositioned pixels in the normalized image space based on the DtoN mapping, the repositioned pixels corresponding to the initial pixels of the rolling-shutter framing sensor, producing a normalized image based on the repositioned pixels and the NtoD mapping, and resampling the normalized image to produce a corrected image of the imagery collected by the rolling-shutter framing sensor.

Abstract: Aspects and embodiments are generally directed to an imaging system and methods for correcting geometric distortion induced by rolling-shutter operation of framing sensors. In one example, a method includes the acts of developing a DtoN mapping from a distorted image space to a normalized image space for initial pixels of the rolling-shutter framing sensor, developing an NtoD mapping from the normalized image space to the distorted image space for repositioned pixels in the normalized image space based on the DtoN mapping, the repositioned pixels corresponding to the initial pixels of the rolling-shutter framing sensor, producing a normalized image based on the repositioned pixels and the NtoD mapping, and resampling the normalized image to produce a corrected image of the imagery collected by the rolling-shutter framing sensor.

Abstract: Generally discussed herein are systems, apparatuses, and methods for providing contextually relevant augmented reality (AR) to a wearable device. In one or more embodiments, a method can include extracting features of one or more objects in a location in a field of view of a camera of a wearable device, retrieving a three dimensional model of the location based on the extracted features, assessing a situation of a user associated with the wearable device, modifying the three dimensional model based on the assessed user situation, and presenting, using the wearable device, at least a portion of the modified three dimensional model.

Abstract: Generally discussed herein are systems, apparatuses, and methods for. In one or more embodiments, a method can include recording imaging device external orientation parameters of a rigidly mounted imaging device, capturing a reference frame using the imaging device in an orientation corresponding to the recorded parameters, capturing a later frame after the reference frame, correlating the later frame to the reference frame to determine pixel orientation in the reference frame relative to pixel orientation in the later frame, determining an imaging device movement required to return the imaging device back to the orientation associated with the recorded imaging device external orientation parameters based on the determined pixel orientation in the reference frame relative to the pixel orientation in the later frame, and updating the imaging device external orientation parameters to account for the determined imaging device movement in accord with the imaging device external orientation parameters.

Abstract: Generally discussed herein are systems, apparatuses, and methods for. In one or more embodiments, a method can include recording imaging device external orientation parameters of a rigidly mounted imaging device, capturing a reference frame using the imaging device in an orientation corresponding to the recorded parameters, capturing a later frame after the reference frame, correlating the later frame to the reference frame to determine pixel orientation in the reference frame relative to pixel orientation in the later frame, determining an imaging device movement required to return the imaging device back to the orientation associated with the recorded imaging device external orientation parameters based on the determined pixel orientation in the reference frame relative to the pixel orientation in the later frame, and updating the imaging device external orientation parameters to account for the determined imaging device movement in accord with the imaging device external orientation parameters.

Abstract: Generally discussed herein are systems, apparatuses, and methods for providing contextually relevant augmented reality (AR) to a wearable device. In one or more embodiments, a method can include extracting features of one or more objects in a location in a field of view of a camera of a wearable device, retrieving a three dimensional model of the location based on the extracted features, assessing a situation of a user associated with the wearable device, modifying the three dimensional model based on the assessed user situation, and presenting, using the wearable device, at least a portion of the modified three dimensional model.

Abstract: In one embodiment, a system for identifying a communication device includes a signal generator coupled to a transmit horn and a computing system coupled to a receive horn through a receiver. The signal generator is operable to generate an excitation waveform from the transmit horn such that the communication device passively reflects a response waveform. The computing system is operable to receive the response waveform from the communication device and compare the response waveform to a plurality of reference waveforms to determine the identity of the communication device.

Abstract: In one embodiment, a system for identifying a communication device includes a signal generator coupled to a transmit horn and a computing system coupled to a receive horn through a receiver. The signal generator is operable to generate an excitation waveform from the transmit horn such that the communication device passively reflects a response waveform. The computing system is operable to receive the response waveform from the communication device and compare the response waveform to a plurality of reference waveforms to determine the identity of the communication device.