Methods of using an imaging apparatus in augmented reality, in medical imaging and nonmedical imaging
First Claim
1. An augmented or virtual reality method of wound imaging and reconstruction, comprising:
- operating an imaging device to acquire a 3D image of a wound that is real;
producing a depth image from the 3D image;
detecting a wound from the depth image, includingproducing a preliminary wound boundary formed of pixels,producing a final wound boundary from the preliminary wound boundary, including, for each pixel in the preliminary wound boundary,searching for a maximum value of a directional second derivative of the depth image along a direction orthogonal to the preliminary wound boundary,setting a pixel of the final wound boundary to coordinates corresponding with the maximum value, subject to a size control function to avoid breaking continuity of the final wound boundary; and
using the final wound boundary, performing at least one augmented reality processing step, virtual reality processing step, authentic reality processing step, or mixed reality processing step, wherein the step is performed by a computer or a processor.
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Abstract
With inventive processing making use of surface-reconstruction and capping steps, more imagery acquired by 3C cameras can be put to use in augmented reality applications, especially applications, such as medical reconstruction, in which a certain theoretical ideal fit might be wanted but can be difficult or seemingly impossible to achieve due to highly complex, irregular shapes, perimeters and surfaces involved. The inventive technology is especially useful for ongoing wound measurement and comparative analysis and characterization of a wound over time, as well as working with anatomical reconstruction. The inventive technology also extends to non-medical augmented reality applications, and provides robust data sets representing a range of real-world objects, such as zoo animals, family pets, etc. susceptible of being imaged and stored as robust data sets that provide better verisimilitude when used in gaming or other virtual-world contexts as compared to a raw data set from a camera.
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Citations
10 Claims
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1. An augmented or virtual reality method of wound imaging and reconstruction, comprising:
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operating an imaging device to acquire a 3D image of a wound that is real; producing a depth image from the 3D image; detecting a wound from the depth image, including producing a preliminary wound boundary formed of pixels, producing a final wound boundary from the preliminary wound boundary, including, for each pixel in the preliminary wound boundary, searching for a maximum value of a directional second derivative of the depth image along a direction orthogonal to the preliminary wound boundary, setting a pixel of the final wound boundary to coordinates corresponding with the maximum value, subject to a size control function to avoid breaking continuity of the final wound boundary; and using the final wound boundary, performing at least one augmented reality processing step, virtual reality processing step, authentic reality processing step, or mixed reality processing step, wherein the step is performed by a computer or a processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification