Abstract: Methods and systems for storing and accessing dental images. The system includes an imaging system for acquiring x-ray projection frames. The imaging system is connected to a local server through a local area network. A cloud server communicates with devices on the local area. The x-ray projection frames are transmitted from the imaging system to the local server. The local server stores the series of related x-ray projection frames according to a specified policy. In one embodiment, the x-ray projection frames are compressed into a compressed image data set using a modified video compression prediction algorithm customized for x-ray images. The compressed image data is transmitted to the cloud server for storage. The x-ray image data can be accessed from the cloud server by external devices and by other local area networks.

Abstract: A hybrid x-ray system that includes an x-ray device for mounted and portable use. The x-ray device includes a housing, an x-ray source coupled to the housing and configured to generate x-ray radiation, and a support connector coupled to the housing. The support connector is configured to mechanically couple to a support arm and to mechanically couple to a handle. The x-ray device include power circuitry or is otherwise configured to selectively receive power from a battery and an AC power source.

Abstract: A hybrid x-ray system that includes an x-ray device for mounted and portable use. The x-ray device includes a housing, an x-ray source coupled to the housing and configured to generate x-ray radiation, and a support connector coupled to the housing. The support connector is configured to mechanically couple to a support arm and to mechanically couple to a handle. The x-ray device include power circuitry or is otherwise configured to selectively receive power from a battery and an AC power source.

Abstract: Systems and methods for obtaining a panoramic image are provided. One system includes a gantry, an x-ray source, a receptor, and at least one controller. The x-ray source is mounted on the gantry and is configured to alternatively output x-ray radiation at a first energy level and x-ray radiation at a second energy level. The receptor is mounted on the gantry so that x-ray radiation from the x-ray source impinges on the receptor. The receptor is configured to output a plurality of frames of data including a first frame and a second frame sequential to the first frame. The controller is configured to control the x-ray source so that data in the first frame is generated based on x-ray radiation of the first energy level and data in the second frame is based on x-ray radiation of the second energy level.

Abstract: Provided are a system, method, and computer readable storage medium for using a digital reconstruction of a tooth, wherein the digital reconstruction includes a crown and a root. An image of the crown of the tooth is acquired, subsequent to a movement of the tooth. The shape data of the crown is extracted from the image and registered to the digital reconstruction of the tooth.

Abstract: Systems and methods for integrating intra-oral imagery and volumetric imagery. In one example, a dental imaging system includes a processor and a memory. The memory stores instructions that, when executed by the processor, cause the dental imaging system to receive shape data of a super-gingival portion of a patient's teeth; receive volumetric imagery of the super-gingival portion of the patient's teeth and volumetric imagery of a sub-gingival portion of the patient's teeth; segment the shape data to determine crowns of the patient's teeth; and register the crowns with the volumetric imagery of the super-gingival portion.

Abstract: Systems and methods are described for identifying a sub-gingival surface of a tooth in volumetric imagery data. Shape data is received from a surface scanner and volumetric imagery data is received from a volumetric imaging device. The shape data of the super-gingival portion of a first tooth is registered with the volumetric imagery data of the super-gingival portion of the first tooth to obtain a registration result. At least one criterion is then determined for detecting a surface of the first tooth in the volumetric imagery data of the super-gingival or the sub-gingival portion using the registration result. The surface of the sub-gingival portion of the first tooth is detected in the volumetric imagery data using the at least one criterion.

Abstract: Methods and systems are described for removing reflective artifacts from an imaging model. An x-ray detector captures x-ray images that include a structure and an imaging device captures a surface scan of the same structure. An image processor constructs a three-dimensional CT model of the structure from the x-ray images and constructs a three-dimensional surface model of the structure from the surface scan. The image processor is configured to resize and orient the surface model and/or the CT model so that they are the same scale and orientation, overlay the surface model onto the CT model, and detect data points in the combined data set that extend beyond a surface of the structure in the surface model. The detected data points represent artifacts in the CT model and are adjusted by interpolation to produce an artifact-reduced CT model.

Abstract: Methods and systems for storing and accessing dental images. The system includes an imaging system for acquiring x-ray projection frames. The imaging system is connected to a local server through a local area network. A cloud server communicates with devices on the local area. The x-ray projection frames are transmitted from the imaging system to the local server. The local server stores the series of related x-ray projection frames according to a specified policy. In one embodiment, the x-ray projection frames are compressed into a compressed image data set using a modified video compression prediction algorithm customized for x-ray images. The compressed image data is transmitted to the cloud server for storage. The x-ray image data can be accessed from the cloud server by external devices and by other local area networks.

Abstract: Systems and methods are described for identifying a sub-gingival surface of a tooth in volumetric imagery data. Shape data is received from a surface scanner and volumetric imagery data is received from a volumetric imaging device. The shape data of the super-gingival portion of a first tooth is registered with the volumetric imagery data of the super-gingival portion of the first tooth to obtain a registration result. At least one criterion is then determined for detecting a surface of the first tooth in the volumetric imagery data of the super-gingival or the sub-gingival portion using the registration result. The surface of the sub-gingival portion of the first tooth is detected in the volumetric imagery data using the at least one criterion.

Abstract: Methods and systems are described for removing reflective artifacts from an imaging model. An x-ray detector captures x-ray images that include a structure and an imaging device captures a surface scan of the same structure. An image processor constructs a three-dimensional CT model of the structure from the x-ray images and constructs a three-dimensional surface model of the structure from the surface scan. The image processor is configured to resize and orient the surface model and/or the CT model so that they are the same scale and orientation, overlay the surface model onto the CT model, and detect data points in the combined data set that extend beyond a surface of the structure in the surface model. The detected data points represent artifacts in the CT model and are adjusted by interpolation to produce an artifact-reduced CT model.

Abstract: Methods and systems for storing and accessing dental images. The system includes an imaging system for acquiring x-ray projection frames. The imaging system is connected to a local server through a local area network. A cloud server communicates with devices on the local area. The x-ray projection frames are transmitted from the imaging system to the local server. The local server stores the series of related x-ray projection frames according to a specified policy. In one embodiment, the x-ray projection frames are compressed into a compressed image data set using a modified video compression prediction algorithm customized for x-ray images. The x-ray image data (whether compressed or not) is transmitted to the cloud server for storage. The x-ray image data can be accessed from the cloud server by external devices and by other local area networks.

Abstract: Systems and methods are described for identifying a sub-gingival surface of a tooth in volumetric imagery data. Shape data is received from a surface scanner and volumetric imagery data is received from a volumetric imaging device. The shape data of the super-gingival portion of a first tooth is registered with the volumetric imagery data of the super-gingival portion of the first tooth to obtain a registration result. At least one criterion is then determined for detecting a surface of the first tooth in the volumetric imagery data of the super-gingival or the sub-gingival portion using the registration result. The surface of the sub-gingival portion of the first tooth is detected in the volumetric imagery data using the at least one criterion.

Abstract: Methods and systems are described for removing reflective artifacts from an imaging. A first volumetric model and a second volumetric model of the same object are accessed from a computer-readable memory. The orientation and scale of at least one of the two models is repeatedly and automatically adjusted until an optimized orientation and scale is determined that correlates the first volumetric model and the second volumetric model. The second volumetric model is then overlaid onto the first volumetric model. Any data points in the first volumetric model that extend beyond a surface of the second volumetric model are detected and removed to create an artifact-reduced volumetric model.

Abstract: Devices, methods, and systems including an intraoral x-ray imaging sensor. The intraoral x-ray imaging sensor having a substrate having an imaging area and a non-imaging area, a plurality of readout amplifiers located in the non-imaging area of the substrate, an array of pixels located on the imaging area of the substrate and arranged as a plurality of rows and columns, and pixel selector circuitry diagonally arranged in the imaging area of the substrate. Each pixel of the array of pixels is selectively coupled to one or more of the plurality of readout amplifiers.

Abstract: Methods and systems are described for removing reflective artifacts from an imaging. A first volumetric model and a second volumetric model of the same object are accessed from a computer-readable memory. The orientation and scale of at least one of the two models is repeatedly and automatically adjusted until an optimized orientation and scale is determined that correlates the first volumetric model and the second volumetric model. The second volumetric model is then overlaid onto the first volumetric model. Any data points in the first volumetric model that extend beyond a surface of the second volumetric model are detected and removed to create an artifact-reduced volumetric model.

Abstract: A hybrid x-ray system that includes an x-ray device for mounted and portable use. The x-ray device includes a housing, an x-ray source coupled to the housing and configured to generate x-ray radiation, and a support connector coupled to the housing. The support connector is configured to mechanically couple to a support arm and to mechanically couple to a handle. The x-ray device include power circuitry or is otherwise configured to selectively receive power from a battery and an AC power source.

Abstract: An adaptive automatic transmission control system responds to stopping of a vehicle for reducing torque absorption by an automatic transmission and movement of and range to obstructions forward from a vehicle for reengaging the automatic transmission after a stop. The torque converter is released from its reduced torque absorption mode under one of three circumstances: 1) the brake pedal is released; 2) the detected obstruction moves outside a first predefined maximum range; and, 3) the detected obstruction moves outside a second predefined maximum range and at greater than a predefined minimum speed.

Abstract: An imaging barcode scanner and method are provided. The scanner includes a housing defining a work surface, a window supported by the housing, a first array of photosensitive elements having a first field of view traversing the window and intersecting the work surface at a first angle, and a second array of photosensitive elements having a second field of view traversing the window and intersecting the work surface at a second angle. The scanner also includes a processor connected to the first and second arrays of photosensitive elements, and configured to: receive a first image of the work surface from the first array of photosensitive elements, and a second image of the work surface from the second array of photosensitive elements; register the first image with the second image; and generate an enhanced image of the work surface based on the registered first image and second image, the enhanced image having a greater pixel density than the first image and the second image.

Abstract: Methods and systems are described for removing reflective artifacts from an imaging model of a patient's teeth. A first volumetric model and a second volumetric model of the patient's teeth are accessed from a computer-readable memory. The orientation and scale of at least one of the two models is repeatedly and automatically adjusted until an optimized orientation and scale is determined that correlates the first volumetric model and the second volumetric model. The second volumetric model is then overlaid onto the first volumetric model. Any data points in the first volumetric model that extend beyond a surface of the patient's teeth in the second volumetric model are detected and removed to create an artifact-reduced volumetric model.