Abstract: Embodiments may include novel techniques to improve detection of objects in images, for example, in Digital Breast Tomography and that are applicable to ensembles of detectors. For example, a method may comprise generating a plurality of candidate bounding boxes for each of a plurality of image slices of imaged tissue, each generated candidate bounding box having a probability score, collecting at least some of the generated candidate bounding boxes for each slice, generating a heat map of the filtered candidate bounding boxes and filtering the candidate bounding boxes in the heat map based on a first threshold of values in the heat map, performing Non-Maximum Suppression on the heat map filtered candidate bounding boxes, and outputting at least one bounding box based on the probability score.

Abstract: Systems and method for detecting anomalies in accordance with embodiments of the invention are illustrated. One embodiment includes receiving a first data stream collected from a first sensor, identifying a first set of anomalies in the first data stream using a first model, receiving a second data stream collected from a second sensor, identifying a second set of anomalies in the second data stream using a second model, determining a set of joint anomalies using the first set of anomalies, second set of anomalies, and a threshold, wherein a threshold is some time period, and updating how anomalies are identified in the first and second set of models using the set of joint anomalies.

Abstract: A sensor assembly includes a first body that rotates a sensor component about an axis, and a second body coupled to the first body to form a separation gap. The separation gap extends radially inward from a gap inlet to a sealed barrier of the second body. The separation gap may be configured with a set of air guide structural features, to induce formation of eddies from air intake received through the gap inlet, as air from the air intake moves inward towards the sealed barrier.

Abstract: A light detection and ranging (LIDAR) sensor assembly can comprise an optics assembly that includes a LIDAR sensor and a set of dovetail joint inserts. The LIDAR sensor assembly can further include a frame comprising a set of dovetail joint septums coupled to the set of dovetail joint inserts of the optics assembly.

Abstract: A light detection and ranging (LIDAR) sensor assembly can comprise an optics assembly that includes a LIDAR sensor and a set of dovetail joint inserts. The LIDAR sensor assembly can further include a frame comprising a set of dovetail joint septums coupled to the set of dovetail joint inserts of the optics assembly.

Abstract: The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.

Abstract: A sensor assembly includes a first body that rotates a sensor component about an axis, and a second body coupled to the first body to form a separation gap. The separation gap extends radially inward from a gap inlet to a sealed barrier of the second body. The separation gap may be configured with a set of air guide structural features, to induce formation of eddies from air intake received through the gap inlet, as air from the air intake moves inward towards the sealed barrier.

Abstract: A sensor assembly includes a first body that rotates a sensor component about an axis, and a second body coupled to the first body to form a separation gap. The separation gap extends radially inward from a gap inlet to a sealed barrier of the second body. The separation gap may be configured with a set of air guide structural features, to induce formation of eddies from air intake received through the gap inlet, as air from the air intake moves inward towards the sealed barrier.

Abstract: The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.

Abstract: The present disclosure relates to devices, systems, and methods for controlling and/or augmenting acoustic sounds emitted from flight vehicles, such as unmanned aerial vehicles (UAVs). For example, while in flight, a UAV may emit a characteristic sound or tone (or a plurality of such tones), which may be a result of propeller and/or motor noise. To mitigate such noise from UAVs, disclosed embodiments may include acoustic resonators that may provide additional tones to complement the sounds or tones emitted from the UAV. Namely, the acoustic resonators may be shaped, adjusted, or otherwise controlled to emit additional tones that form pleasing intervals in combination with the characteristic tone(s) from the UAV.

Abstract: A light detection and ranging (LIDAR) sensor assembly can comprise an optics assembly that includes a LIDAR sensor and a set of dovetail joint inserts. The LIDAR sensor assembly can further include a frame comprising a set of dovetail joint septums coupled to the set of dovetail joint inserts of the optics assembly.

Abstract: A sensor assembly includes a first body that rotates a sensor component about an axis, and a second body coupled to the first body to form a separation gap. The separation gap extends radially inward from a gap inlet to a sealed barrier of the second body. The separation gap may be configured with a set of air guide structural features, to induce formation of eddies from air intake received through the gap inlet, as air from the air intake moves inward towards the sealed barrier.

Abstract: A lift assembly for use during inflation of a balloon envelope is provided. The lift assembly includes a plate structure that has a set of cavities. Each cavity includes one or more openings passing through the plate. One or more pistons are coupled to the plate through at least one of the openings of each cavity in the set of cavities. Each piston has a hollow tube portion projecting lengthwise from the at least one opening, a flange attached to the hollow tube portion and a grabber portion in communication with the flange. The grabber portion includes a plurality of bearings for grabbing a stud attached to an apex of the balloon envelope. A handle portion is coupled to the plate. The handle is arranged to lift the balloon envelope when the bearings have grabbed a given stud.

Abstract: Aspects of the disclosure relate to filling and lifting high altitude balloons. For instance, one example system for lifting and filling a balloon having a balloon envelope includes an apparatus for use with the balloon envelope. The apparatus includes a load line, a fill tube having a hollow portion nested within the load line and a termination member attached to the fill tube and load line. The load line is configured to lift the balloon envelope during inflation. The fill tube extends through the load line and is configured to allow lift gas to pass through the hollow portion. The termination member is configured to mate with an opening in the balloon envelope so that lift gas can pass through the hollow portion of the fill tube and into the opening in the balloon envelope.

Abstract: A method for balloon launching may include loading a pre-packaged balloon and payload into a shell structure. The pre-packaged balloon may be pulled out of its packaging in a vertical direction, for instance using a gantry crane. The gantry crane may be configured to inflate the balloon from the top of the envelope. The balloon may be inflated while substantially within the shell structure, which may provide protection from wind gusts. A vehicle, such as a heavy forklift, may provide mobility and support for the balloon and shell. Once the balloon is inflated, the vehicle may move the balloon/shell combination at a rate and direction substantially matching the current wind direction/speed. Furthermore, after reaching a zero-velocity condition relative to the wind, the vehicle may assist and/or initiate the opening of the shell. A tether connecting the balloon to the shell structure may be disconnected, allowing the balloon to launch.

Abstract: Aspects of the disclosure relate to filling and lifting high altitude balloons. For instance, one example system for lifting and filling a balloon having a balloon envelope includes an apparatus for use with the balloon envelope. The apparatus includes a load line, a fill tube having a hollow portion nested within the load line and a termination member attached to the fill tube and load line. The load line is configured to lift the balloon envelope during inflation. The fill tube extends through the load line and is configured to allow lift gas to pass through the hollow portion. The termination member is configured to mate with an opening in the balloon envelope so that lift gas can pass through the hollow portion of the fill tube and into the opening in the balloon envelope.

Abstract: A lift assembly for use during inflation of a balloon envelope is provided. The lift assembly includes a plate structure that has a set of cavities. Each cavity includes one or more openings passing through the plate. One or more pistons are coupled to the plate through at least one of the openings of each cavity in the set of cavities. Each piston has a hollow tube portion projecting lengthwise from the at least one opening, a flange attached to the hollow tube portion and a grabber portion in communication with the flange. The grabber portion includes a plurality of bearings for grabbing a stud attached to an apex of the balloon envelope. A handle portion is coupled to the plate. The handle is arranged to lift the balloon envelope when the bearings have grabbed a given stud.

Abstract: An apparatus is provided that includes a solenoid chamber having a plunger configured to create an opening in a first balloon envelope of a balloon system when the solenoid chamber is actuated. The opening enables gas to evacuate from the first balloon envelope. A mixer valve having a nozzle is coupled to the solenoid chamber. The mixer valve is configured to create a gas mixture formed from the gas evacuating from the opening and atmospheric gas. A heating device is attached to the nozzle. The heating device is configured to heat the gas mixture created by the mixer valve. A second balloon envelope is attached to the nozzle. The second balloon envelope is arranged to expand in proportion to a quantity of the heated gas mixture passing through the nozzle. This expansion of the second balloon envelope creates an amount of lift for controlling descent of the balloon system.

Abstract: A lift assembly for use during inflation of a balloon envelope is provided. The lift assembly includes a plate structure that has a set of cavities. Each cavity includes one or more openings passing through the plate. One or more pistons are coupled to the plate through at least one of the openings of each cavity in the set of cavities. Each piston has a hollow tube portion projecting lengthwise from the at least one opening, a flange attached to the hollow tube portion and a grabber portion in communication with the flange. The grabber portion includes a plurality of bearings for grabbing a stud attached to an apex of the balloon envelope. A handle portion is coupled to the plate. The handle is arranged to lift the balloon envelope when the bearings have grabbed a given stud.

Abstract: A system for filling balloons with lift gas is provided. The system includes apparatus for use with a balloon envelope of a balloon. This apparatus includes a main body having first and second portions. The first portion has a fill port and a hollow tube portion in communication with the fill port. The second portion has a surface and is insertable into a predefined opening in the balloon envelope. The surface of the second portion is configured to attach to an inner portion of the balloon envelope when the second portion is inserted in the predefined opening.