# US 2021/0279900 A1 · Scanning device with imaging and pressure-sensing functionality > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0279900 A1 - Document ID: US20210279900A1 - Status: Published application - Kind: A1 - Application number: 17/143,878 - Filed: 2021-01-07 - Published: 2021-09-09 - Earliest claimed: 2020-03-06 - Assignees: Aetrex Worldwide, Inc. - Applicants: Aetrex Worldwide, Inc. - Inventors: Laurence I. Schwartz; Kumar Rajan; Anthony Yezzi - Web page: https://patentgrep.com/patent/US20210279900A1 ## CPC - A61B 5/1038: {Measuring plantar pressure during gait} - G06T 7/55: from multiple images - A61B 5/0064: {Body surface scanning} - A61B 5/0077: {Devices for viewing the surface of the body, e.g. camera, magnifying lens} - A61B 5/112: {Gait analysis} - A61B 5/1128: {using image analysis (A61B5/1127 takes precedence)} - A61B 5/6829: {Foot or ankle} - A61B 5/743: {Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots} - G01B 11/245: using a plurality of fixed, simultaneously operating transducers ({G01B11/2408 - G01B11/2425, } G01B11/255 take precedence) - G01B 21/18: for measuring depth - G06T 7/0012: {Biomedical image inspection} - G06T 7/593: from stereo images - A61B 5/7239: {using differentiation including higher order derivatives} - G06T 2207/30004: Biomedical image processing - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ## Abstract Embodiments of the present disclosure relate to a scanning device comprising a support base, a pressure panel disposed on an upper surface of the support base, and a plurality of cameras distributed around an outer perimeter of the support base. ## Claims ### Claim 1 A scanning device comprising: a support base comprising substantially flat upper and lower surfaces; a pressure panel disposed on the upper surface of the support base, the pressure panel comprising a plurality of pressure sensors; a plurality of cameras distributed around an outer perimeter of the support base and substantially oriented toward a center of the pressure panel; and a processing device operatively coupled to the pressure panel and each of the plurality of cameras, wherein the processing device is configured to activate and receive data generated by the pressure panel and each of the plurality of cameras. ### Claim 2 (depends on 1) The scanning device of claim 1, wherein the plurality of cameras disposed around the outer perimeter of the support base are equidistant from the center of the pressure panel. ### Claim 3 (depends on 1) The scanning device of claim 1, wherein the outer perimeter of the support base is a circular perimeter. ### Claim 4 (depends on 3) The scanning device of claim 3, wherein a total number of the plurality of cameras is four. ### Claim 5 (depends on 4) The scanning device of claim 4, wherein the four cameras are unevenly distributed around the circular perimeter. ### Claim 6 (depends on 5) The scanning device of claim 5, wherein a first distance between a first camera and a second camera is equal to a second distance between a third camera and a fourth camera, and wherein a third distance between the first camera and the third camera is less than a fourth distance between the second camera and the fourth camera. ### Claim 7 (depends on 3) The scanning device of claim 3, wherein the cameras are positioned to define a walking path through a center region of the scanning device. ### Claim 8 (depends on 1) The scanning device of claim 1, wherein at least one of the plurality of cameras comprises a depth sensor configured to capture depth data during image capture by its corresponding camera. ### Claim 9 (depends on 1) The scanning device of claim 1, wherein the pressure sensors of the plurality of pressure sensors are arranged in a planar configuration. ### Claim 10 (depends on 9) The scanning device of claim 9, wherein each of the plurality of pressure sensors, when the pressure panel is activated, are configured to generate signals representative of underfoot pressure when an individual's foot is in contact with the pressure panel, the signals collectively defining a two-dimensional pressure map of the individual's foot. ### Claim 11 (depends on 1) The scanning device of claim 1, wherein the processing device is configured to generate a three-dimensional reconstruction of an individual's foot based on data captured by the pressure panel and each of the plurality of cameras when the individual's foot is in contact with the pressure panel. ### Claim 12 (depends on 1) The scanning device of claim 1, wherein the processing device is configured to transmit data generated by the pressure panel and each of the plurality of cameras to a processing server for generating a three-dimensional reconstruction of the individual's foot and/or data descriptive of an orthotic device customized to the individual's anatomy. ### Claim 13 (depends on 1) The scanning device of claim 1, wherein the processing device is configured to capture dynamic gait data of an individual's foot as the individual steps onto and/or off of the pressure panel. ### Claim 14 A method comprising: capturing a two-dimensional pressure map of an individual's foot while the individual is standing on a pressure panel; capturing images of the individual's foot by a plurality of cameras arranged around the pressure panel; and computing a three-dimensional reconstruction of the individual's foot in a form of a smooth three-dimensional surface comprising an upper portion and a lower portion, wherein the upper portion is computed based on the captured images, and wherein the lower portion is computed based on the two-dimensional pressure map to account for the underside of the individual's foot that is not visible to the plurality of cameras. ### Claim 15 (depends on 14) The method of claim 14, further comprising: capturing a series of two-dimensional pressure maps of the individual's foot as the individual steps onto and/or off of the pressure panel. ### Claim 16 (depends on 14) The method of claim 14, further comprising: generating data descriptive of an orthotic device based on the three-dimensional reconstruction of the individual's foot; and transmitting the data descriptive of the orthotic device to a manufacturing device to fabricate the orthotic device. ### Claim 17 (depends on 14) The method of claim 14, wherein computing the three-dimensional reconstruction of the individual's foot comprises: utilizing a partial differential equation (PDE) to evolve a surface representative of the individual's foot using depth data from the captured images by minimizing a fitting score; and applying a penalty to the fitting score based on a mismatch between a boundary of the two-dimensional pressure map and a boundary of the surface. ### Claim 18 A scanning device comprising: a support base comprising substantially flat upper and lower surfaces; a plurality of cameras distributed around an outer perimeter of the support base and mechanically coupled thereto, wherein the plurality of cameras are configured to rotate around a central axis of the support base while remaining oriented toward a center of the support base; and a processing device operatively coupled to each of the plurality of cameras, wherein the processing device is configured to activate and receive data generated by each of the plurality of cameras. ### Claim 19 (depends on 18) The scanning device of claim 18, wherein the processing device is configured to cause the plurality of cameras to capture images while rotating around the outer perimeter of the support base. ### Claim 20 (depends on 18) The scanning device of claim 18, further comprising: a pressure panel disposed on the upper surface of the support base, wherein the processing device is operatively coupled to the pressure panel and is configured to activate and receive data generated by the pressure panel.