A dental x-ray sensor holder and sheath for affixing a sensor to a backing plate of the holder. The dental x-ray sensor holder and sheath generally includes a sensor holder with a backing plate, having one or more spring arms, and affixed to or formed contiguously with a proximal end of a bite block of the holder. It also includes a sensor sheath adapted to secure a sensor to the backing plate for X-ray acquisition.

Described herein are methods and devices for improved location of any and all underwater structures or equipment installed underwater. In particular, systems are disclosed that combine optical and acoustic metrology for locating objects in underwater environments. The systems allow for relative positions of objects to be determined with great accuracy using optical techniques, and support enhanced location of devices that utilize acoustic location techniques. In addition, location information can be provided by the system even in conditions that make optical metrology techniques impossible or impractical.

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.

A method and system are described for examining the interior material of an object from a surface of an object using ultrasound having a frequency of at least 100 kHz. The method comprises the step of transmitting at least a first ultrasound signal by a first ultrasound transmitter of a first number of ultrasound transmitters to the interior material of the object for forming a first image in order to determine, according for example to the principle of inverse wave field extrapolation, where in the interior material of the object reflections and/or diffractions occur. Reflections and/or diffractions of the first ultrasound signal from the interior material of the object are received using a second number of ultrasound receivers which are acoustically coupled to the surface of the object at positions which are distributed in at least one dimension of the surface of the object. With each of the second number of ultrasound receivers, a receiving signal is generated from the received reflections and/or diffractions of the first ultrasound signal from the interior material of the object, and each of the receiving signals generated by one of the ultrasound receivers is processed separately into a separate dataset. The separate datasets of all the ultrasound receivers are combined to the first image.

A method and system are described for examining the interior material of an object from a surface of an object using ultrasound having a frequency of at least 100 kHz. The method comprises the step of transmitting at least a first ultrasound signal by a first ultrasound transmitter of a first number of ultrasound transmitters to the interior material of the object for forming a first image in order to determine, according for example to the principle of inverse wave field extrapolation, where in the interior material of the object reflections and/or diffractions occur. Reflections and/or diffractions of the first ultrasound signal from the interior material of the object are received using a second number of ultrasound receivers which are acoustically coupled to the surface of the object at positions which are distributed in at least one dimension of the surface of the object. With each of the second number of ultrasound receivers, a receiving signal is generated from the received reflections and/or diffractions of the first ultrasound signal from the interior material of the object, and each of the receiving signals generated by one of the ultrasound receivers is processed separately into a separate dataset. The separate datasets of all the ultrasound receivers are combined to the first image.

An ultrasound imaging system includes a probe and a console. The probe includes a row-column addressed transducer array, first beamformer configured to beamform echo signals received by the row-column addressed transducer array and produce a set of image planes for each emission with a single focus in both transmit and receive, and a first communication interface. The console includes a second complementary communication interface and a second beamformer configured to beamform the focused set of image planes and produce a three-dimensional volume of ultrasound data.

Sold-state intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. Some embodiments of the present disclosure are particularly directed to flexible and efficient systems for focusing IVUS echo data received from transducers including polymer piezoelectric micro-machined ultrasound transducers (PMUTs). In one embodiment, an ultrasound processing system includes first and second aperture engines coupled to an engine controller, which provides aperture assignments to the first and second aperture engines. The aperture engines receive the assignment and a portion of A-line data, perform one or more focusing process on the received A-line data, and produce focused data in accordance with the aperture assignment. In some embodiments, once an aperture engine has produced focused data, the engine controller clears the aperture engine and assigns another aperture.

A method and apparatus are disclosed for determining if an item of media is invalid. The method includes providing an ultrasound image of an item of media, determining a plurality of regions of the image that satisfy a pre-determined condition and determining that an item of media is invalid if the location of said regions satisfies a pre-determined condition.

An information processing apparatus, comprises a first acquiring unit that acquires a photoacoustic image generated base d on an acoustic wave which is generated by light irradiation; a second acquiring unit that acquires an ultrasonic image generated based on a reflected wave of an ultrasonic wave transmitted to the object; a determining unit that determines a high accuracy region that is a region in which information is acquired with at least a predetermined accuracy in the photoacoustic image; an input unit that accepts a specification of a region of interest (ROI) on the ultrasonic image; and a displaying unit that displays the ultrasonic image and the photoacoustic image corresponding to the ROI, wherein when the inputting unit accepts the specification of the ROI, the displaying unit displays the position of the high accuracy region on the ultrasonic image in a superimposed state.

An information processing apparatus, comprises a first acquiring unit that acquires a photoacoustic image generated base d on an acoustic wave which is generated by light irradiation; a second acquiring unit that acquires an ultrasonic image generated based on a reflected wave of an ultrasonic wave transmitted to the object; a determining unit that determines a high accuracy region that is a region in which information is acquired with at least a predetermined accuracy in the photoacoustic image; an input unit that accepts a specification of a region of interest (ROI) on the ultrasonic image; and a displaying unit that displays the ultrasonic image and the photoacoustic image corresponding to the ROI, wherein when the inputting unit accepts the specification of the ROI, the displaying unit displays the position of the high accuracy region on the ultrasonic image in a superimposed state.