Abstract: Verifying the opacity of an inflatable membrane includes tests to measure the contribution of a background to the noise in the fluorescence signal as an inflatable membrane is stretched. For example, if the inflatable membrane fluoresces red and green light in response to illumination with visible blue light, the ratio of red to green fluoresced light is measured when the membrane is not stretched and then stretched while the membrane sits over a background that is half black and half red. When the change in the ratio of intensities of the two wavelengths of fluoresced light increases more for measurements taken over one portion of the background than the other, then the inflatable membrane is considered transparent to the wavelengths of fluoresced light, and if it increases a similar amount for measurements taken no matter which portion of the background the membrane covered, then the inflatable membrane is considered opaque.

Abstract: An inflatable membrane for use with a three-dimensional (3D) scanning system configured to measure signal intensity of a first and a second wavelength of light may include a matrix material, a pigment for opacity, and a fluorescent material that is transparent to the first and the second wavelengths of light. The first and second wavelengths of light may be ranges of wavelengths. The matrix material may include a silicone, and the pigment for opacity may include a carbon black. The 3D scanning system may be configured to scan anatomical cavities, such as the human ear canal.

Abstract: A balloon membrane may be coupled with a scanner to produce a three-dimensional representation. The balloon membrane may include an exterior surface, and an interior surface comprising one or more fiducial markers having geometric features to form a random pattern that when detected by the scanner permits a processor of the scanner to use portions of the random pattern present in at least two image frames to align the at least two image frames to form the three-dimensional representation.

Abstract: In one aspect, there is provided an apparatus. The apparatus may include a balloon membrane. The balloon membrane may include an opening, an exterior surface, and an interior surface. The interior surface may include one or more fiducial markers forming a pattern detectable by a scanner imaging the interior surface of the balloon membrane. Scanned portions of the interior surface of the balloon membrane may be combined based on the fiducial markers forming the pattern. Related methods and articles of manufacture, including computer program products, are also disclosed.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain dynamic three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: Various improvements to inflatable membranes for use in three-dimensional imaging of interior spaces are disclosed. These improvements include, among other things, equipping the inflatable membrane with desirable optical features, such as fiducials, optical coatings, etc., that can be used to improve data acquisition.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain dynamic three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: Various improvements to three dimensional imaging systems having inflatable membranes are disclosed. These improvements include, among other things, a proximity sensor that can be used to warn a user of the device when approaching a feature in a cavity, such as an eardrum in an ear canal; or optical sensors with an optical coating matching the refractive index of the medium in which the optical sensors are deployed, to improve data acquisition.

Abstract: Various improvements to inflatable membranes are disclosed. These improvements include, among other things, features on the membrane that can mitigate hazards such as bubble formation or frictional damage during inflation of the membrane.

Abstract: Various improvements to inflatable membranes are disclosed. These improvements include techniques for advantageously controlling the inflation of a membrane within a cavity, such as a human ear canal.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain dynamic three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain dynamic three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.

Abstract: A multi-purpose device that can be used, as, among other things, an otoscope and a three dimensional scanning system is disclosed.