Abstract: In one embodiment, a system, comprising: a neural network, configured to: receive electromagnetic field measurement data from an object of interest as input to the neural network, the neural network trained on labeled data; and reconstruct a three-dimensional (3D) distribution image of a physical property of the object of interest from the received electromagnetic field measurement data, the reconstruction implemented without performing a forward solve during the reconstruction.

Abstract: A system for detecting human entry into a container using electromagnetic imaging to generate image maps of the container. The system includes a door monitor configured to detect an entry door open event associated with the container. The system uses one or more processors and a memory with instructions to generate a baseline image map of the container, detect an entry door open event with the door monitor associated with the container, generate a post entry door open event image map of the container, and compare the baseline image map generated before the entry door open event with image map generated after the entry door open event.

Abstract: A novel, integrated dual-modal breast imaging system that requires minimal or no movement of the breast between scans. A static receptacle holds the breast or other target object still. An acoustic imaging fixture with acoustic transducers, and an electromagnetic imaging chamber with electromagnetic antennae, each perform imaging of the target object when occupying a respective working position of surrounding relationship to the receptacle, and at least one thereof is movable relative to said static receptacle into and out of the respective working position, without repositioning of the static receptacle. Acoustic imaging is performed, and prior information extracted from the sound-speed image is incorporated into the electromagnetic inversion algorithm, whereby low-resolution sound-speed reconstructions are used to improve tumour detection via electromagnetic imaging.

Abstract: In one embodiment, a system, comprising: one or more processors; and a memory comprising instructions, wherein the one or more processors are configured by the instructions to: receive first electromagnetic data at a plurality of frequencies; process the first electromagnetic data; and generate prediction parameters by passing the processed first electromagnetic data through a neural network trained on data corresponding to a synthetic training set, the prediction parameters corresponding to a container and contents located within the container.

Abstract: A method for electromagnetic imaging of containers receives uncalibrated first data corresponding to signals of a first plurality of different frequencies associated with an antenna array residing in a container having contents. The method estimates of a second data based on a computer model and simulation of signals of a second plurality of different frequencies associated with the antenna array, the second plurality of different frequencies including a subset of the first plurality of different frequencies. The method compares magnitudes, without corresponding phase comparisons, of the first and second data at each frequency of the second plurality of different frequencies. The method updates the second data based on the comparing. The method provides information about the contents within the container based on the updated second data.

Abstract: A method for electromagnetic imaging of containers receives uncalibrated first data corresponding to signals of a first plurality of different frequencies associated with an antenna array residing in a container having contents. The method estimates of a second data based on a computer model and simulation of signals of a second plurality of different frequencies associated with the antenna array, the second plurality of different frequencies including a subset of the first plurality of different frequencies. The method compares magnitudes, without corresponding phase comparisons, of the first and second data at each frequency of the second plurality of different frequencies. The method updates the second data based on the comparing. The method provides information about the contents within the container based on the updated second data.

Abstract: A method for electromagnetic imaging of containers receives uncalibrated first data corresponding to signals of a first plurality of different frequencies associated with an antenna array residing in a container having contents. The method estimates of a second data based on a computer model and simulation of signals of a second plurality of different frequencies associated with the antenna array, the second plurality of different frequencies including a subset of the first plurality of different frequencies. The method compares magnitudes, without corresponding phase comparisons, of the first and second data at each frequency of the second plurality of different frequencies. The method updates the second data based on the comparing. The method provides information about the contents within the container based on the updated second data.

Abstract: Exemplary imaging systems, apparatus, and methods may include a plurality of reconfigurable antenna assemblies. The reconfigurable antenna assemblies may each include one or more antennas. The antennas may be configured in a plurality of states including a passive state in which the antenna may not perturb the electromagnetic field. The antennas may be positioned about a measurement domain such as, e.g., a conductive measurement chamber.

Abstract: Exemplary imaging systems, apparatus, and methods may include a plurality of reconfigurable antenna assemblies. The reconfigurable antenna assemblies may each include one or more antennas. The antennas may be configured in a plurality of states including a passive state in which the antenna may not perturb the electromagnetic field. The antennas may be positioned about a measurement domain such as, e.g., a conductive measurement chamber.

Abstract: System and method for harvesting radio frequency power from a wireless transmitter includes; an antenna having an output voltage, a matching network coupled to the antenna, a booster circuit coupled to the matching network and having an output voltage, and adapted to amplify the output voltage of the antenna. Matching network is adapted to match a power transfer. A voltage stabilizer circuit is adapted to stabilize the booster circuit output voltage. Method includes, determining at least one operating mode and charging a slave device from a master wireless transmitter located within a predetermined distance from the system. A rechargeable battery in the system is charged from a wireless transmitter, and a slave device is connected to the system. The slave device is charged from the rechargeable battery in the system.