Abstract: Systems, methods and apparatus are provided through which in some embodiments, row-correlated noise of a digital X-ray detector is monitored during idle operation of the digital X-ray detector and the magnitude of the row-correlated noise is compared to a visible threshold.

Abstract: A digital detector of a digital imaging system is provided. In one embodiment, the digital detector includes a flat-panel detector having a detector array for converting X-ray radiation into image data. The digital detector may also include a plurality of antennas, and the digital detector may be configured to transmit the image data via one or more antennas of the plurality of antennas. Additional systems, methods, and devices are also disclosed.

Abstract: A digital detector of a digital imaging system is provided. In one embodiment, a digital detector includes a detector array disposed in a housing and configured to generate image data based on received radiation. The digital detector may also include a battery configured to be disposed within a receptacle of the housing and to supply operating power to the detector array. In one embodiment, the receptacle and the housing may be configured such that the receptacle is externally accessible to enable a user to selectively insert and remove the battery from the receptacle. Additional systems, methods, and devices are also disclosed.

Abstract: A gain correction and calibration technique for digital imaging systems is provided. In one embodiment, a method may include acquiring a plurality of dark images via a digital detector of an X-ray system. Acquiring the plurality of dark images may include acquiring data from a plurality of data channels of the digital detector during an analog test mode of the digital detector in which calibration voltages are applied to the data channels. The method may also include calibrating a channel gain map of the detector based on the plurality of dark images. Additional systems, methods, and devices are also disclosed.

Abstract: Systems, methods and apparatus are provided through which in some implementations field-effect-transistor (FET) leakage from a pixel array panel of a digital X-ray detector is reduced by acquiring an image and an offset image from the pixel array panel of the digital X-ray detector while a negative voltage of the pixel array panel is at a higher level than a negative voltage of a threshold state of the pixel array panel of the digital X-ray detector.

Abstract: A digital radiography imaging system having a digital x-ray detector that is easy to manufacture and produces high quality images with no artifacts. The digital x-ray detector including a front cover, a scintillator screen member, a light imager panel member having a surface in direct contact with an adjoining surface of the scintillator screen member, a compressible member positioned between the front cover and the scintillator screen member to apply pressure to the scintillator screen member and the adjoining surface between the scintillator screen member and the light imager panel member, electronic circuitry mounted on at least one printed circuit board and coupled to the light imager panel, a back cover, and a plurality of fasteners for fastening the front cover to the back cover.

Abstract: Systems, methods and apparatus are provided through which in some implementations field-effect-transistor (FET) leakage from a pixel array panel of a digital X-ray detector is reduced by acquiring an image and an offset image from the pixel array panel of the digital X-ray detector while a negative voltage of the pixel array panel is at a higher level than a negative voltage of a threshold state of the pixel array panel of the digital X-ray detector.

Abstract: Systems, methods and apparatus are provided through which in some implementations a portable digital X-ray detector includes a modular handle that is removeable from a housing of the detector, the modular handle includes component(s) that perform functions that are specific to a number of portable digital X-ray detectors, such as data communication with external devices and/or power conditioning, and the housing of the detector includes the pixel array and component(s) that perform functions that are common to the pixel array. In some implementations, the modular handle includes an interface to the housing to support data communications and/or power supply with the component(s) in the housing and the housing also includes an interface that operably couples to the modular handle.

Abstract: Systems, methods and apparatus are provided through which in some implementations a portable wireless digital X-ray detector includes a battery electrically coupled to at least one external electrical conductor. In some implementations, the external electrical conductor is mounted flush to an outside of a housing of the portable wireless digital X-ray detector. In some implementations, the external electrical conductor plate includes only hypoallergenic materials. In some implementations, the battery is fixed mounted in the portable wireless digital X-ray detector. In some implementations docking detector receptacle at least one external electrical conductor in a pocket of the docking detector receptacle.

Abstract: The effects of electromagnetic interference (EMI) on X-ray image data is corrected by characterizing the EMI and processing the image data to subtract the EMI effects from the image data. The X-ray image data, along with offset data, are collected in a conventional manner, affected by EMI if present, and EMI-characterizing data is immediately collected thereafter by disabling rows of a digital detector (FET off). The EMI-characterizing data, then, is not affected by the presence of image data, and can be used to characterize the amplitude and frequency of the EMI. The EMI-characterizing data is assured of being in phase with the collected image and offset data due to its collection in the same image acquisition sequence immediately following the collection of image and offset data. Artifacts due to the presence of EMI are thus eliminated from reconstructed images based upon the corrected data.

Abstract: Systems, methods and apparatus are provided through which in some implementations a docking detector receptacle includes apparatus to cool a portable digital X-ray detector. In addition, systems, methods and apparatus are provided through which in some implementations communication authorization is established between a portable digital X-ray detector and a docking detector receptacle, and communication is performed between the portable digital X-ray detector and the docking detector receptacle using the authorization. In addition, systems, methods and apparatus are provided through which in some implementations a portable digital X-ray detector includes a panel, isolation at least three isolation foam layers, a motherboard and a carbon fiber layer.

Abstract: The effects of electromagnetic interference (EMI) on X-ray image data is corrected by characterizing the EMI and processing the image data to subtract the EMI effects from the image data. The X-ray image data, along with offset data, are collected in a conventional manner, affected by EMI if present, and EMI-characterizing data is immediately collected thereafter by disabling rows of a digital detector (FET off). The EMI-characterizing data, then, is not affected by the presence of image data, and can be used to characterize the amplitude and frequency of the EMI. The EMI-characterizing data is assured of being in phase with the collected image and offset data due to its collection in the same image acquisition sequence immediately following the collection of image and offset data. Artifacts due to the presence of EMI are thus eliminated from reconstructed images based upon the corrected data.

Abstract: A dual function detector device operates in either a normal operating mode or in an EMI correction mode to suppress effects of EMI within the detector. The detector device may be a flat panel x-ray detectors used in x-ray imaging systems. The device has a pixel architecture and panel read-out technique that enables real-time, high spatial frequency measurement of noise induced by electromagnetic radiation on a digital x-ray detector. The measurement can be used to calibrate the detector in real-time to attain artifact-free imaging in all environments, including those that contain temporally and spatially changing electromagnetic fields.

Abstract: Systems, methods and apparatus are provided through which in some embodiments field-effect-transistor (FET) leakage is estimated recursively from a pixel value obtained when the FET is off. The corrected pixel value is then obtained by subtracting the FET leakage estimate from the pixel value read when the FET is on. A weighing factor is introduced for the FET leakage estimation to achieve the balance between image noise and correction resolution.

Abstract: Systems, methods and apparatus are provided through which in some embodiments field-effect-transistor (FET) leakage is estimated recursively from a pixel value obtained when the FET is off. The corrected pixel value is then obtained by subtracting the FET leakage estimate from the pixel value read when the FET is on. A weighing factor is introduced for the FET leakage estimation to achieve the balance between image noise and correction resolution.

Abstract: Systems, methods and apparatus are provided through which in some embodiments, row-correlated noise of a digital X-ray detector is monitored during idle operation of the digital X-ray detector and the magnitude of the row-correlated noise is compared to a visible threshold.

Abstract: A method includes purposefully electromagnetically shielding a portable x-ray detector.

Abstract: Certain embodiments of the present invention provide for an imaging system including an index value source, a transmitter, a receiver, and an image processing component. The index value source is capable of generating an index value. The index value source is part of and/or included in an imaging system detector. The transmitter is in communication with the index value source. The receiver is in communication with the transmitter. The image processing component is in communication with the receiver. The image processing component includes a lookup table. The image processing component is capable of generating a pixel value based at least in part on an index value and a lookup table. The pixel value has a bit-width greater than the index value. In an embodiment, the receiver is in wireless communication with the transmitter.

Abstract: A method of testing a portable x-ray device includes sensing an environmental stimulus experienced by the portable x-ray device, transmitting a signal related to the environmental stimulus to a processing unit, determining whether the signal meets an alert threshold, activating a detector of the portable x-ray device if the signal meets the alert threshold, producing a gray image through the activating step, comparing the gray image produced through the activating step with a control gray image corresponding to a properly functioning detector.