Abstract: In some embodiments, a method of ensuring fabricability of a segmented design for a physical device to be fabricated by a fabrication system is provided. A proposed segmented design is searched for forbidden patterns in a set of forbidden patterns. Segments from the proposed segmented design that appear in forbidden patterns are added to a set of unfabricable segments. A material indicated by at least one unfabricable segment from the set of unfabricable segments is changed to create an updated segmented design, and the updated segmented design is searched for the forbidden patterns in the set of forbidden patterns. In response to determining that the updated segmented design includes at least one forbidden pattern, the adding, changing, and searching actions are repeated. In response to determining that the updated segmented design does not include any forbidden patterns, an indication is generated that the updated segmented design is fabricable.

Abstract: In embodiments, obtaining a plurality of image sets associated with a geographical region and a time period, wherein each image set of the plurality of image sets comprises multi-spectral and time series images that depict a respective particular portion of the geographical region during the time period, and predicting one or more crop types growing in each of particular locations within the particular portion of the geographical region associated with an image set of the plurality of image sets. Determining a crop type classification for each of the particular locations based on the predicted one or more crop types for the respective particular locations, and generating a crop indicative image comprising at least one image of the multi-spectral and time series images of the image set overlaid with indications of the crop type classification determined for the respective particular locations.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a generator neural network to adapt input images.

Abstract: An apparatus includes an acoustic source for directing an acoustic wave towards a workspace, a variable acoustic diffractive device positioned in a path of the acoustic wave between the acoustic source and the workspace, the variable acoustic diffractive device including an array of elements each having independently variable acoustic properties, and an electronic controller in communication with the acoustic source and the variable acoustic diffractive device, the electronic controller programmed to supply signals to cause the acoustic source to produce the acoustic wave and the variable acoustic diffractive device to diffract the acoustic wave from the acoustic source to provide non-uniform acoustic forces in a medium located in the workspace.

Abstract: Methods, systems, and apparatus for quantum analog-digital conversion. In one aspect, a method includes obtaining a quantum analog signal; applying a hybrid analog-digital encoding operation to the quantum analog signal and a qudit in an initial state to obtain an evolved state of the qudit, wherein the hybrid analog-digital encoding operation is based on a swap operation comprising multiple adder operations; and providing the qudit in the evolved state as a quantum digital encoding of the quantum analog signal.

Abstract: A method of calibrating a collimating lens system includes transmitting, using an optical transmitter, a beam out of an optical fiber and through a collimating lens of the collimating lens system. The beam is reflected off a perfect flat mirror positioned at an output of the collimating lens and back towards the collimating lens, and received, via the collimating lens, at a power meter connected to the optical fiber. The method also includes adjusting a position of a tip of the optical fiber proximal to the collimating lens while tracking a power reading using the power meter, selecting a calibration position of the optical fiber corresponding to a highest power reading, and securing the optical fiber relative to the collimating lens using the calibration position.

Abstract: A system for collection of rainwater in the open ocean may include: (a) one or more ocean-going vessels, wherein each ocean-going vessel is configured for collection and storage of rainwater, wherein each ocean-going vessel is configured to drift with surface ocean currents in order to navigate to one or more delivery locations, wherein each delivery location is on or near to a land mass; and (b) one or more delivery stations located at the one or more delivery locations, wherein each delivery station is configured to receive stored rainwater from one or more of the ocean-going vessels.

Abstract: Techniques are described for determining the strain on a cell wall using two models: 1) a short timescale model, describing the relationship between physical properties assumed to be fixed and 2) a long timescale model, describing the dynamic chemical composition of a cell wall. Short term modeling of the physical properties in a cell wall is used to properly understand how physical factors such as osmotic pressure affects the strain on the cell wall, which is in turn used to identify conditions under which a cell wall will cease to function properly or lyse entirely. Although temporally the physical properties which cause cell walls to underperform/lyse can be evaluated under a short time frame, the chemical properties that lead to the physical properties which cause that behavior themselves change over much longer timescales, in a relative sense.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for a lighting controller for sea lice detection. In some implementations, a pulse of red light and a pulse of blue light can be timed with the exposure of a camera to capture multiple images of a fish or group of fishes in both red and blue light. By using the captured images with different color light, computers can detect features on the body of a fish including sea lice, skin lesions, shortened operculum or other physical deformities and skin features. Detection results can aid in mitigation techniques or be stored for analytics. For example, sea lice detection results can inform targeted treatments comprised of lasers, fluids, or mechanical devices such as a brush or suction.

Abstract: A system for physically simulating a neural network is described herein. The system includes a plurality of physical voxels configurable to represent nodes of the neural network operating in response to electromagnetic radiation. Each of the physical voxels includes an impedance adjuster, a field detector, and a signal adjuster. The impedance adjuster adjusts impedance to the electromagnetic radiation within a corresponding one of the physical voxels. Weights between nodes of the neural network are based on the adjusted impedance. The field detector measures local field response within the corresponding one of the physical voxels. The local field response is representative of the electromagnetic radiation with the adjusted impedance. The signal adjuster is coupled to receive the local field response and apply an adjustment to the received local field response. The adjustment corresponds to an activation function of the neural network at the corresponding one of the physical voxels.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-readable storage media, for automated camera positioning for feeding behavior monitoring. In some implementations, a system obtains an image of a scene from one or more cameras and a spatial model that corresponds to a subfeeder. The system determines, based on data from the spatial model and the image of the scene, a current position of the one or more cameras relative to the subfeeder. The system selects an updated position of the one or more cameras relative to the subfeeder. The system moves the one or more cameras to the updated position. In some implementations, the system dynamically selects the updated position of the one or more cameras relative to the subfeeder.

Abstract: Methods, systems, and apparatus, including computer programs stored on a computer-readable storage medium, for performing hybrid additive manufacturing. In some implementations, a hybrid additive manufacturing system causes a three-dimensional printer to print a sheet of material that includes printed features on one side of the sheet, each printed feature having a structural characteristic that is different from structural characteristics of a majority of the sheet. The system causes a molding machine to form the sheet using a mold, where at least one printed feature corresponds with an area of the mold at which the sheet deforms while being formed.

Abstract: An example system includes a patterned light projector operable to direct first and second portions of patterned light toward first and second surfaces, respectively, in an environment. The first and second surfaces may be at first and second distances, respectively, from the structured light projector. A graduated optical filter may be situated along an optical path of the patterned light. The graduated optical filter includes first and second regions to attenuate an intensity of the first and second portions of the patterned light, respectively, by first and second amounts, respectively. The first amount is greater than the second amount. The system additionally includes an image sensor operable to generate image data based on at least the first and second portions of the patterned light and a processor configured to determine first and second values indicative of an estimate of the first and second distances, respectively, based on the image data.

Abstract: A physical voxel, a volumetric testbed, and method for physically simulating a photonic device are described herein. The volumetric testbed comprises a simulation stage and a controller. The simulation stage includes a three-dimensional array of physical voxels configurable to represent the photonic device operating in response to electromagnetic radiation. The physical voxels include a field detector to measure a local field response and an impedance adjuster to adjust an impedance to the electromagnetic radiation. The controller is coupled to memory, which stores instructions that when executed by one or more processors included in the controller causes the volumetric testbed to perform operations including determining a global field response of the photonic device and adjusting the impedance of the physical voxels to refine a design of the photonic device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for controlling a camera to observe aquaculture feeding behavior. In some implementations, a method includes moving a camera to a first position, obtaining an image captured by the camera at the first position, determining a feeding observation mode, and based on the feeding observation mode and analysis of the image, determining a second position to move the camera.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing confidential data and confidential programs while providing mutual security to the data and programs. A method includes receiving, from a first system, customer energy data, including data representing energy consumption by a customer; receiving, from a second system, program data representing one or more programs for processing the customer energy data; executing the programs with the customer energy data as input to produce output that includes estimated energy consumption data, while providing security for the program data from access by the first system and any third party and while providing security for the customer energy data and the estimated energy consumption data from access by the second system and any third party; and providing the estimated energy consumption data as output (i) to the first system or (ii) to the customer or (iii) both.

Abstract: The disclosure provides for a communication system that includes one or more sensors and one or more processors. The one or more processors are configured to receive, during a first timeframe, a first indication of an error rate of a communication link, a second indication of an amount of received power at a remote communication system, and one or more measurements related to the state of the communication system. The one or more processors are then configured to estimate a plurality of disturbance values to the communication system according to the one or more measurements and the second indication. Each disturbance value is associated with a set of components of the communication system. The one or more processors are configured to adjust a beam divergence of a beacon beam or a communication beam transmitted from the communication system based on the plurality of disturbance values and the first indication.