Abstract: Exemplary embodiments of the present disclosure directed towards a non-destructive device configured to survey, inspect, and clean marine growth, comprising: manipulators comprising adjustable clamps configured to move or rotate 360 degrees for holding at least one cylindrical shape of an offshore structure; a plurality of hydraulic rams configured to hydraulically operate and control the plurality of manipulators; a central part comprising a camera and light emitting diodes configured to provide visual aid to a user and a lidar configured to determine ranges by targeting the offshore structure with a laser and measure the time for reflected light to return to a programming logic circuit board; probes configured to survey angular and distance measures of objects around the offshore structure, and inspections of safety and security of the offshore; and a high pressure jetting nozzle configured to clean the marine growth and rotary arms of the offshore structure.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for underwater camera biomass prediction aggregation. In some implementations, an exemplary method includes obtaining images of fish captured by an underwater camera; providing data of the images to a trained model; obtaining output of the trained model indicating the likelihoods that the biomass of fish are within multiple ranges; combining likelihoods of the output based on one or more ranges common to likelihoods of two or more fish to generate a biomass distribution; and determining an action based on the biomass distribution.

Abstract: A fish monitoring system deployed in a particular area to obtain fish images is described. Neural networks and machine-learning techniques may be implemented to periodically train fish monitoring systems and generate monitoring modes to capture high quality images of fish based on the conditions in the determined area. The camera systems may be configured according to the settings, e.g., positions, viewing angles, specified by the monitoring modes when conditions matching the monitoring modes are detected. Each monitoring mode may be associated with one or more fish activities, such as sleeping, eating, swimming alone, and one or more parameters, such as time, location, and fish type.

Abstract: A system is for in-situ monitoring and recording of fish health of fish in a fish cage. The system has at least one camera housing. The camera housing is provided with a camera group having at least two cameras arranged to take synchronized pictures for digital close-range photogrammetry. The system has a central data-processing unit, the central data-processing unit being arranged to calculate a three-dimensional model of an object photographed synchronously by the at least two cameras. The data-processing unit is arranged to report the number of structures deviating from the smooth surface of the object in the three-dimensional model.

Abstract: The present disclosure discloses a wingless hydraulic extrusion spiral rotation and forward movement type intelligent unmanned underwater vehicle, including a cabin body and a control module. The cabin body includes a power reaction cabin and a power fuel storage cabin, a power reaction cabin water supply device is fixedly arranged on the cabin body. The power reaction cabin and the power fuel storage cabin are separated by a partition plate. Power fuel in the power fuel storage cabin may enter the power reaction cabin. A tail part of the power reaction cabin is provided with a jet forward propeller. The control module is fixed on the cabin body. At least two jet rotation propellers are arranged on the cabin body. The jet rotation propeller includes a main propelling pipe, an auxiliary propelling pipe, and a jet magnification ring. The jet magnification ring includes an outer ring and an inner ring.

Abstract: Systems and methods for positioning objects in underwater environments are provided. The geolocation of a target for an object is determined, and a light source provided as part of a positioning system is operated to project a visible target at that location. The determination of the target location relative to the positioning system can include determining a location of the positioning system using information obtained from a laser system included in the positioning system. The light source used to project the visible target can be the same as a light source included in the laser system. A location of an object relative to the target location can be tracked by the laser system as the object is being moved towards the target location. The described methods and systems utilize one or more non-touch subsea optical systems, including but not limited to laser systems, for underwater infrastructure installation, measurements and monitoring.

Abstract: Load control apparatuses, systems and methods to control a location, orientation, or rotation of a suspended load by imparting thrust vectors to the suspended load or to a structure that holds the load. The load control apparatuses, systems and method may be integrated into a structure that holds a load, such as a rescue litter. The load control apparatuses, systems, and methods may be modular. The modular load control apparatuses, systems, and methods may be secured to a load or to a structure that holds the load.

Abstract: A method for external fish parasites, such as sea lice, monitoring in aquaculture, comprising the steps of: —submerging a camera (52) in a sea pen (40) comprising fish (72, 74); —capturing images of the fish (72, 74) with the camera (52); and —identifying external fish parasites such as sea lice on the fish (72, 74) by analyzing the captured images, characterized by the steps of: —distinguishing between at least two different classes of external fish parasites such as sea lice which differ in the difficulty of recognizing the external fish parasites such as sea lice; —calculating quality metrics for each captured image, the quality metrics permitting to identify the classes of external fish parasites such as sea lice for which the quality of the image is sufficient for sea lice detection; and —establishing separate detection rates for each class of sea lice, each detection rate being based only on images the quality of which, as described by the quality metrics, was sufficient for detecting external fish para

Abstract: An image capture device is disclosed that includes a body defining a peripheral cavity and a removable door assembly that is configured to close and seal the peripheral cavity. The door assembly includes a door body; a locking mechanism; and a biasing member that is configured for engagement with the locking mechanism to resist unlocking of the locking mechanism until a threshold force is applied, at which time, the biasing member is moved from a normal position, in which the biasing member extends at a first angle in relation to the locking mechanism, to a deflected position, in which the biasing member extends at a second angle in relation to the locking mechanism. When locked, the door assembly is rotationally fixed in relation to the body of the image capture device, and when unlocked, the door assembly is rotatable in relation to the body of the image capture device.

Abstract: Embodiments of the invention provide an untethered apparatus for measuring properties along a subterranean well. According to at least one embodiment, the untethered apparatus includes a housing, and one or more sensors configured to measure data along the subterranean well. The data includes one or more physical, chemical, geological or structural properties in the subterranean well. The untethered apparatus further includes a processor configured to control the one or more sensors measuring the data and to store the measured data, and a transmitter configured to transmit the measured data to a receiver arranged external to the subterranean well. Further, the untethered apparatus includes a controller configured to control the buoyancy or the drag of the untethered apparatus to control a position of the untethered apparatus in the subterranean well. The processor includes instructions defining measurement parameters for the one or more sensors of the untethered apparatus within the subterranean well.

Abstract: In an example embodiment, a drone-based system comprises: a base station, wherein the base station is configured to provide drone control and power, a drone; a tether connecting the base station to the drone and configured to provide the drone with the power from the base station; and a lighting system, operably attached to the drone via the tether, configured to generate illumination of a ground area, wherein the illumination of the ground area is controllable by modifying least one of an intensity of the illumination and a height of the drone above the ground area.

Abstract: An image capture device is disclosed that includes a body defining a peripheral cavity and a removable door assembly that is configured to close and seal the peripheral cavity. The door assembly includes a door body; a locking mechanism; and a biasing member that is configured for engagement with the locking mechanism to resist unlocking of the locking mechanism until a threshold force is applied, at which time, the biasing member is moved from a normal position, in which the biasing member extends at a first angle in relation to the locking mechanism, to a deflected position, in which the biasing member extends at a second angle in relation to the locking mechanism. When locked, the door assembly is rotationally fixed in relation to the body of the image capture device, and when unlocked, the door assembly is rotatable in relation to the body of the image capture device.

Abstract: An imaging lens includes a first group, a second group, an aperture stop, a third group, and a fourth group. The second group includes one positive lens. The third group includes two positive lenses and one negative lens. At least two of the third group are joined together to form a compound lens. The imaging lens has a fixed focal length and an angle of view of 120 degrees or more. Conditional expressions (1), (2), (3), and (4) below are satisfied: ?2.7?f1/f??0.7??(1) 2.2?f2/f?6.6??(2) 3.9?f3/f?14.3??(3) 2.8?f4/f?11.0??(4) where fi denotes focal length of i-th group with respect to a d-line, i denotes one of 1 to 4, and f denotes focal length of an entirety of the imaging lens with respect to the d-line.

Abstract: A wellhead alignment system includes a visual marker configured to be placed at a wellhead and a camera configured to capture an image that includes the visual marker. The wellhead alignment system also includes one or more processors configured to apply computer vision algorithms to identify the visual marker in the image and to calculate an offset between the wellhead and a drilling rig based on a position of the visual marker in the image.

Abstract: A computer-implemented method comprising: receiving data associated with an operational control problem; formulating the operation control problem as an optimization problem; recursively generating a sequence of policies of operational control associated with the operational control problem, wherein each subsequent policy in the sequence is constructed by modifying one or more actions at a single state in a preceding policy in the sequence, and wherein the modifying monotonically changes a risk associated with the subsequent policy; constructing, from the sequence of policies, an optimal solution path, wherein each vertex on the optimal solution path represents an optimal solution to the operational control problem; calculating a ratio of reward to risk for each of the vertices on the path; and selecting one of the policies in the sequence to apply to the operational control problem, based, at least in part, on the calculated ratios.

Abstract: An underwater ROV or AUV with 8 vectored thrusters that provides a high degree of dynamic stabilisation, 6-degrees of freedom, and a system to control an underwater ROV or AUV with single or multiple thruster failures. In addition, the ROV/AUV has a system to minimise silt disturbance when operating close to fine silt or sensitive environments.

Abstract: A device for processing images are provided. The device a support bar, a mounting housing mounted with a camera lens, and a connector configured to connect the support bar to the mounting housing. The mounting housing is integrally rotatable with the connector with respect to the support bar. The mounting housing may further be mounted with an ultrasonic probe and a lightening device. The ultrasonic probe is configured to monitor a predefined change, such as a change in an occupation state of a parking space, and the camera lens and the lightening device is controlled at least by the monitored change. When the ultrasonic probe monitors that a car is leaving or entering a parking space, the camera lens and the lightening may be switched on.

Abstract: A method for external fish parasite monitoring in aquaculture, comprising the steps of: submerging a camera (52) in a sea pen containing fish, the camera having a field of view; capturing images of the fish with the camera (52); and identifying external fish parasite on the fish by analyzing the captured images, characterized in that a target region within the field of view of the camera (52) is illuminated from above and below with light of different intensities and/or spectral compositions.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for underwater camera biomass prediction aggregation. In some implementations, an exemplary method includes obtaining images of fish captured by an underwater camera; providing data of the images to a trained model; obtaining output of the trained model indicating the likelihoods that the biomass of fish are within multiple ranges; combining likelihoods of the output based on one or more ranges common to likelihoods of two or more fish to generate a biomass distribution; and determining an action based on the biomass distribution.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, that validate the synchronization of controllers in an aquaculture environment. One of the methods includes an image processor that receives images generated by a first image generating device that includes a light filter that is associated with light of a particular light frequency while an aquaculture environment was illuminated with light. Based on the image that was generated by the first image generating device, the image processor determines whether the intensity value of the light frequency in the image satisfies a threshold value. Based on determining whether the intensity value of the light frequency in the image satisfies the threshold value, the image processor determines whether the aquaculture environment was illuminated with light of the particular light frequency when the image was generated.

Abstract: Methods and devices for correcting underwater photon displacement and for depth sounding with a single-photon Lidar are provided. The method includes: acquiring a pointing angle of a photon emitted by the single-photon Lidar, and coordinates of a water-surface photon signal and a water-bottom photon signal returned by the photon emitted by the single-photon Lidar; performing a sea wave fitting according to the water-surface photon signal to determine a sea wave model; determining an intersection of the photon and an air-water interface according to coordinates of any water-bottom photon, the pointing angle and the sea wave model; determining an underwater displacement error of the photon according to the intersection, the sea wave model and the pointing angle; and correcting the coordinates of the water-bottom photon according to the underwater displacement error. The invention performs sea wave modeling through water surface photon signal and determines intersection of the photon and water-air interface.

Abstract: Methods and systems for detecting marine mammals. Acoustic data can be received from one or more hydrophones. The acoustic data can be sampled, and the sampled acoustic data can be transformed to time-frequency image data. The image data can be processed to transform the data for input to a model. The model can be trained to detect the presence or absence of marine mammal vocalizations in the acoustic data. The model can output a prediction of whether or not a mammal is present.

Abstract: A control device is provided to reliably locate objects and calculate appropriate grasp points for each object to thereby effectively control a robot system. grasp point calculation is based on, at least, properties of a surface of the object to be grasped by the robot system to more effectively calculate a grasp point for the surface of the object. An organised point cloud generator and a robot system having a suction cup end are arranged to generate an organised point cloud of a storage. The robot system can grasp the object from the storage means. Normals of the organised point cloud and principal curvatures of the organised point cloud can be calculated. A grasp point can be calculated for the suction cup end effector of the robot system to grasp an object based on the organised point cloud, the calculated normal, the calculated principal curvatures, and a normal of a lower surface of the storage.

Abstract: A remote sensor system comprising a laser transmitter that emits a pulse of broadband laser illumination comprising a plurality of wavelengths and a receiver configured to detect laser illumination backscatter. The sensor system further includes a computing system configured to determine a plurality of species number densities along a travel path of the laser illumination. Determining the plurality of species number densities includes determining a first number density of a first species based on a first set of optical transmission values from the backscatter data for a first subset of wavelengths of the plurality of wavelengths and a first attenuation cross-section of the first species. Additional species are determined based on additional sets of optical transmission values from the backscatter data for additional subsets of wavelengths of the plurality of wavelengths and additional cross-sections of additional species.

Abstract: An illuminator/collector assembly can deliver incident light to a sample and collect return light returning from the sample. A sensor can measure ray intensities as a function of ray position and ray angle for the collected return light. A ray selector can select a first subset of rays from the collected return light at the sensor that meet a first selection criterion. In some examples, the ray selector can aggregate ray intensities into bins, each bin corresponding to rays in the collected return light that traverse within the sample an estimated optical path length within a respective range of optical path lengths. A characterizer can determine a physical property of the sample, such as absorptivity, based on the ray intensities, ray positions, and ray angles for the first subset of rays. Accounting for variations in optical path length traversed within the sample can improve accuracy.

Abstract: The present invention is related to a condensation prevention type transmission window for a CMS module test chamber, the transmission window being provided at the module test chamber. The condensation prevention type transmission window includes: a multilayer glass panel in which heating wires are coated on upper, lower, left, and right side surfaces thereof; and an air injector provided at each of opposite surfaces of the transmission window to inject air from an upper side edge and/or a lower side edge of the transmission window and to form an air curtain. The present invention provides the condensation prevention type transmission window for a CMS module test chamber, which prevents freezing and fogging on inside and outside surfaces of the transmission window of the CMS module test chamber varying in a temperature range from 40° C. to +125° C.

Abstract: An information processing apparatus including a display control unit that causes an image captured by any of one or a plurality of imaging devices to be displayed in a captured image display region that is a part of a display unit, causes second information related to the one or plurality of imaging devices to be displayed in a captured image hiding region that is a part of the display unit and different from the captured image display region, and causes first information related to the one or plurality of corresponding imaging devices to be displayed in the captured image display region in accordance with the second information being displayed and the one or plurality of imaging devices being in a predetermined state.

Abstract: A modular mechanical arm of an underwater pile foundation structure includes a modular interface disposed at one end of the transmission arm rod, a mechanical arm connecting part disposed at the other end of the transmission arm rod. The mechanical arm connecting part is separately provided with two arm frames, each of the arm frames comprises an inner arm frame and an outer arm frame, the inner arm frame and the outer arm frame are coupled by a joint, and a soft moving and cleaning part is disposed on an inner side of each of the arm frames; the modular interface is coupled with an underwater UAV interface to transmit current and a control signal, a waterproof steering gear is built in the transmission arm rod to receive the control signal.

Abstract: A method for determining a corrected axial displacement parameter of a conduit inspection tool, in particular a downhole inspection tool, during transit of the tool axially along a conduit is disclosed. The tool used in the method has an imaging device and may be attached to a control module with a connecting line. The method comprises obtaining successive axially overlapping images of an internal wall of the conduit, determining, from the images, an observed axial displacement parameter of the tool as a function of transit time, identifying, in the images, a plurality of reference points, determining an estimated axial displacement parameter of the tool over an of transit time between successive reference points, and computing the corrected axial displacement parameter of the tool by applying a correction factor to the observed axial velocity of the tool.

Abstract: An untethered apparatus for measuring properties along a subterranean well includes a housing, and one or more sensors configured to measure data along the subterranean well. The data includes one or more physical, chemical, geological or structural properties in the subterranean well. The untethered apparatus further includes a processor configured to control the one or more sensors measuring the data and to store the measured data, and a transmitter configured to transmit the measured data to a receiver arranged external to the subterranean well. Further, the untethered apparatus includes a controller configured to control the buoyancy or the drag of the untethered apparatus to control a position of the untethered apparatus in the subterranean well. The processor includes instructions defining measurement parameters for the one or more sensors of the untethered apparatus within the subterranean well.

Abstract: A buoyant camera device that is mechanically connectable to existing equipment to image underwater objects and underwater processes, and method of using the device to image the underwater objects and the underwater processes.

Abstract: Methods are provided to package and deploy a marine vibrator for use in connection with marine seismic surveys. Marine vibrators are provided with a number of buoyancy configurations with corresponding techniques for controlling the submergence depth of the marine vibrators. An exemplary marine vibrator comprises a positively buoyant hydrodynamic tow body, comprising: a low frequency electro-acoustic projector; a power electronics system; a control-monitoring electronics system; and a pressure compensation system, wherein the hydrodynamic tow body comprises one or more active control surfaces to adjust a submergence depth and a roll attitude of the hydrodynamic tow body. Additional embodiments employ a free-flooding, load-bearing frame with positive or negative buoyancy.

Abstract: An anti-fouling lighting system is used for protecting a surface (16) against biofouling while the surface (16) is submerged in water. A non-contact water sensor (60) is used for sensing water thereby to detect whether or not a light source arrangement (26), or a portion of the light source arrangement (26), is submerged in water. The light source arrangement (26), or the portion of the light source arrangement (26), is controlled in dependence on the water sensor (60) output.

Abstract: To present various types of information related to image capturing in a more suitable manner. An information processing apparatus including: a display control unit that causes an image captured by any of one or a plurality of imaging devices to be displayed in a captured image display region that is a part of a display unit, cause second information related to the one or plurality of imaging devices to be displayed in a captured image hiding region that is a part of the display unit and different from the captured image display region, and cause first information related to the one or plurality of corresponding imaging devices to be displayed in the captured image display region in accordance with the second information being displayed and the one or plurality of imaging devices being in a determined state.

Abstract: A battery powered do-it-yourself (DIY) swimming pool sensor and alarm unit that is removably mounted in a floating assembly. The sensor monitors movement in the pool and around the pool deck and provides remote video alerts to designated cell phones as well as a localized audible and visual alarm when motion is detected. It has an above waterline camera and a below waterline camera that provides a video feed for further remote investigation. It utilizes a float stabilizing means to ensure the floating assembly is not capsized by large waves or wind. It cannot be defeated because of its floating location, and can be simply installed and set up by the average homeowner. Optionally, it has sensors that monitor the pool water's chemistry and provides the results to an owner's cell phone or to a remote chemical dispensing unit located at the pool.

Abstract: A waterproof wall 60 is provided to be interposed between an end face 31 of a base end section of a waterproof lens unit 20 and a mount face 13 of a camera body 10, thereby shutting off the front surface of the camera body 10 from a space in front of the front surface of the camera body 10 by the waterproof wall 60.

Abstract: Aspects of the present invention disclose a method for color reconstruction of individual detected objects of an underwater image using a library of reference images. The method includes one or more processors obtaining image data of a computing device that includes an underwater image. The method further includes determining a depth measurement corresponding to the underwater image. The method further includes identifying an object of the underwater image based at least in part on a shape of the object. The method further includes reconstructing one or more colors of the object of the underwater image based at least in part on a reference image.

Abstract: The invention relates to a camera module (100) for a vehicle. The camera module (100) has a housing section (105) with a camera lens (110) and is characterized in that the camera module (100) contains a cylindrical front cover receiver (115) surrounding the housing section (105) that extends beyond the camera lens (110). A transparent front cover (120) for the camera lens (110) is received in the front cover receiver (115). The front cover (120) has an outer surface (125) that can be exposed to environmental effects.

Abstract: A watercraft and method for operating the watercraft, wherein the watercraft includes an electrical system that is present in a space that has an atmosphere that differs from air, where the space is formable by a pressure hull, where the atmosphere contains, for example, an inert gas, and where the space having the electrical system is filled with the atmosphere.

Abstract: A sensor module assembly includes a sensor housing that houses a sensing element configured to sense a characteristic of a process and generate a sensor signal indicative of the characteristic. The sensor module assembly includes a wireless device housing that houses communication circuitry configured to receive the sensor signal and a wireless transmitter configured to send the sensor signal wirelessly to a remote device. The sensor module assembly also includes a communication cable that communicatively couples the sensing element in the sensor housing to the communication circuitry in the wireless device housing.

Abstract: An improved leak detection system for oil and gas pipelines and the like, including submerged or buried structures, the system including an aerial- or space-based platform with GPS and Attitude Determination and Control System (ADCS) capability, the platform connected to a hyperspectral imaging sensor, the system including processor and memory structured with a vegetative index such that chemical and hydrocarbon leaks are detected within regulatorily-approved time limits based on changes in the vegetative index.

Abstract: An underwater ultrasonic device includes at least one first ultrasonic transducer and at least one second ultrasonic transducer. The first ultrasonic transducer is configured to transmit a plurality of ultrasonic signals and the second ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals. The first ultrasonic transducer and the second ultrasonic transducer are disposed with respect to each other. One of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear and another one of the first ultrasonic transducer and the second ultrasonic transducer is curvilinear or straight linear.

Abstract: The invention relates to a method of generating 3D data of an object, in particular for the generation of underwater maps. This method comprises the following steps: provision of two-dimensional image data of the surface of the object, such as e.g. the bottom of a body of water, together with reference information provision of a three-dimensional relief map of a predetermined area of the object or of the bottom of a body of water, and mapping of the two-dimensional image data as texture on the three-dimensional relief map by means of the reference information.

Abstract: A thermal imaging system is provided. The thermal imaging system includes an explosion-proof housing with an optical window configured to contain an explosive pressure. The optical window allows electromagnetic thermal energy to pass. A thermal imaging sensor is disposed within the explosion-proof housing. Thermal imaging electronics are coupled to the thermal imaging sensor and configured to provide at least one thermal image based on a signal from the thermal imaging sensor. A lens assembly is disposed at least in front of the optical window external to the explosion-proof housing. A composite optical window for thermal imaging is also provided. In another embodiment, a thermal imaging system includes an explosion-proof housing having an optical window configured to contain an explosive pressure. An infrared (IR) camera is disposed within the explosion-proof housing. A reflector reflects electromagnetic thermal energy to the IR camera, but prevent an object from impacting the optical window.

Abstract: Techniques for reducing biofouling on optical equipment, using minimum power in a marine environment are provided. An example of an apparatus according to the disclosure includes a housing including a cavity and an ultraviolet transparent window disposed over the cavity, an optical device disposed in the cavity and directed towards the ultraviolet transparent window, one or more ultraviolet light emitting diodes disposed in the cavity and directed towards the ultraviolet transparent window, and a controller operably coupled to the one or more ultraviolet light emitting diodes and configured to provide at least one lamp power function to the one or more ultraviolet light emitting diodes, wherein the at least one lamp power function is based on at least a flash power value, a flash duration, a rest power value and a rest duration.

Abstract: A method of quantifying gas leak rate includes receiving image frames acquired with a camera and including a plume from a gas leak source, determining a real-world size that each pixel represents, identifying pixels corresponding to the plume in a first image frame, calculating gas concentration path lengths of the plume for the pixels in the first image frame, calculating, based on the first image frame and a second image frame, an image velocity field of the plume including displacement vectors for the pixels, identifying, within the first image, a closed boundary enclosing the gas leak source of the plume, and calculating a first gas leak rate in the first image frame by calculating a volume rate of the plume flowing across the closed boundary based on the image velocity field, the gas concentration path lengths, and a time interval between the first and the second image frames.

Abstract: A camera module comprising: a lens barrel comprising a lens; a lens holder for accommodating the lens barrel; an image sensor disposed below the lens barrel; a printed circuit board on which the image sensor is mounted and is coupled to the lens barrel; and at least one welding point for mutually coupling the lens barrel and the lens holder while an optical axis of the lens and an optical axis of the image sensor are aligned.

Abstract: An electronic device and method for communicating with an external electronic device that is connected via a connector of the electronic device are provided. The electronic device includes a connector including a first pin and a second pin, a communication interface connected with the connector, and at least one processor electrically connected with the communication interface, wherein the at least one processor may be configured to apply a first current to the first pin, determine whether liquid is introduced into the connector using the second pin, and if the liquid is introduced into the connector, apply a second current smaller than the first current to the first pin.

Abstract: A system and method for viewing what person or movement may be at their door via their smartphone, without having to do any destructive installation, is disclosed. The camera system attaches to the typical residential door via adhesive pad anchor which uses a hinge portion to orient the camera system through a peephole within the door. One purpose of the camera system is to enable a user to see what's happening at their door, and be alerted to what's going on outside their door at all times, and/or anytime they want to look.

Abstract: Low profile concavely curved cameras, camera housings and related systems and methods. These devices, etc., simultaneously reduce snags and other hazards and also provide improved protection to people such as military and first-responder personnel and athletes by improving the attachment of the camera housing to a helmet or other complexly curved convexly curved base substrate.