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US 2019/0320154 A1Published application
Electronic system including image processing unit for reconstructing 3d surfaces and iterative triangulation method
AssigneeSony Corporation
InventorsRoderick KÖHLE, Francesco MICHIELIN, Dennis HARRES
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Abstract
An electronic system includes a circuitry configured to obtain a sequence of frames of an object under different viewing angles at consecutive time instances. For a first time instance, the circuitry generates a point cloud descriptive for an external surface of the object on basis of (i) a point cloud obtained for a second time instance preceding the first time instance and (ii) disparity information concerning a frame captured at the first time instance.
Claims12
An electronic system, comprising
- circuitry configured to
- obtain a sequence of frames of an object under different viewing angles,
- process the sequence of frames, wherein the circuitry for processing the sequence of frames is further configured to
- receive preconditioned frames,
- for each preconditioned frame, extract salient image points, wherein the salient image points identify small image areas of high contrast,
- reduce a total number of salient image points by selecting only a predetermined number of stable salient image points, and
- generate, for a first time instance, a point cloud descriptive for an external surface of the object based on (i) a point cloud obtained for a second time instance preceding the first time instance and (ii) disparity information concerning a frame captured at the first time instance,
- display a 3D representation of the point cloud generated for the first time instance, and
- update the displayed 3D representation while obtaining the sequence of frames.
6 more elements
A 3D reconstruction method, comprising
- capturing a sequence of frames of an object under different viewing angles at consecutive time instances;
- processing the sequence of frames, wherein processing the sequence of frames includes
- receiving preconditioned frames;
- for each preconditioned frame, extracting salient image points, wherein the salient image points identify small image areas of high contrast:
- reducing a total number of salient image points by selecting only a predetermined number of stable salient image points;
- and
- generating, for a first time instance, a point cloud descriptive for an external surface of the object based on (i) a point cloud obtained for second time instance preceding the first time instance and (ii) disparity information concerning a frame captured at the first time instance;
- displaying a 3D representation of the point cloud generated for the first time instance;
- and
- updating the displayed 3D representation while capturing the sequence of frames.
7 more elements
Dependencies are inferred from the claim text.