Medical imaging data compression and extraction on client side
AssigneeAlign Technology, Inc.
InventorsYury SLYNKO, Vitaliy Vladimirovich CHERNOV, Ilya BARYSHNIKOV
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Abstract
Apparatuses and computer-implemented methods for compression and extraction of three-dimensional (3D) volumetric imaging data, including in particular medical and dental imaging data, that may receive the 3D volumetric image data and preparing compressed 3D volumetric image data for compression by analyzing a relevant region of the 3D volumetric image data. The method may further include compressing, into compressed 3D volumetric image data, the pre-processed static 3D volumetric image data using a video compression scheme. Various other methods, systems, and computer-readable media are also disclosed.
Claims31
A system for compressing a three-dimensional (3D) volumetric image data set including a plurality of image sections forming a 3D volume, the system comprising:
- one or more processors;
- a memory coupled to the one or more processors, the memory storing computer-program instructions, that, when executed by the one or more processors, perform a computer-implemented method comprising:
- identifying one or more anatomic planes within the 3D volumetric image data set and setting coordinate planes using the one or more anatomic planes;
- cropping the 3D volume parallel to the coordinate planes;
- adjusting a dynamic rage of the 3D volumetric image data set;
- and
- converting a spatial axis of the 3D volume into a time axis to form a time sequence of 2D images and applying a video compression scheme to the time sequence of 2D images to form a compressed 3D volumetric image data set.
A system for compressing a three-dimensional (3D) volumetric image data set including a plurality of image sections forming a 3D volume, the system comprising:
- one or more processors;
- a memory coupled to the one or more processors, the memory storing computer-program instructions, that, when executed by the one or more processors, perform a computer-implemented method comprising:
- identifying at least two anatomic planes within the 3D volumetric image data set and setting at least two coordinate planes using the at least two anatomic planes to increase symmetry of the coordinate planes;
- cropping the 3D volume parallel to the coordinate planes;
- adjusting a dynamic rage of the 3D volumetric image data set by histogram analysis and segmenting the 3D volumetric image data set using clinically-relevant regions comprising:
- soft tissue, bone, tooth crowns and tooth roots;
- dividing the image sections forming the 3D volume into a first half that is symmetric with a second half, determining differences between the first half and the second half and reducing the 3D volume by replacing the second half with differences between first half and the second half;
- applying a video compression scheme to the 3D volume to form a compressed 3D volumetric image data set by converting a spatial axis of the 3D volume into a time axis to form a time sequence of 2D images;
- and
- storing or transmitting the compressed 3D volumetric image data set.
A method of compressing a three-dimensional (3D) volumetric image data set including a plurality of image sections forming a 3D volume, the method comprising:
- identifying one or more anatomic planes within the 3D volumetric image data set and setting coordinate planes using the one or more anatomic planes;
- cropping the 3D volume parallel to the coordinate planes;
- adjusting a dynamic rage of the 3D volumetric image data set;
- and
- converting a spatial axis of the 3D volume into a time axis to form a time sequence of 2D images and applying a video compression scheme to the time sequence of 2D images to form a compressed 3D volumetric image data set.
A method of compressing a three-dimensional (3D) volumetric image data set including a plurality of image sections forming a 3D volume, the method comprising:
- identifying at least two anatomic planes within the 3D volumetric image data set and setting at least two coordinate planes using the at least two anatomic planes to increase symmetry of the coordinate planes;
- cropping the 3D volume parallel to the coordinate planes;
- adjusting a dynamic rage of the 3D volumetric image data set by histogram analysis and segmenting the 3D volumetric image data set using clinically-relevant regions comprising:
- soft tissue, bone, tooth crowns and tooth roots;
- dividing the image sections forming the 3D volume into a first half that is symmetric with a second half, determining differences between the first half and the second half and reducing the 3D volume by replacing the second half with differences between first half and the second half;
- applying a video compression scheme to the 3D volume to form a compressed 3D volumetric image data set by converting a spatial axis of the 3D volume into a time axis to form a time sequence of 2D images;
- and
- storing or transmitting the compressed 3D volumetric image data set.
Dependencies are inferred from the claim text.