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Monocular rgb-d camera real-time face reconstruction method and device

A camera, single-purpose technology, applied in the field of 3D reconstruction, can solve the problems of reconstruction failure, inaccurate rigid motion estimation, etc., to achieve the effect of improving accuracy and removing the influence of non-rigid motion

Active Publication Date: 2021-03-16
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has great limitations when the camera is moving fast or the reconstruction object is moving fast, and reconstruction failures often occur due to inaccurate rigid motion estimation.

Method used

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  • Monocular rgb-d camera real-time face reconstruction method and device
  • Monocular rgb-d camera real-time face reconstruction method and device
  • Monocular rgb-d camera real-time face reconstruction method and device

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] The method and device for real-time face reconstruction with a monocular RGB-D camera according to an embodiment of the present invention will be described below with reference to the accompanying drawings. First, the method for real-time face reconstruction with a monocular RGB-D camera according to an embodiment of the present invention will be described with reference to the accompanying drawings .

[0035] figure 1 It is a flowchart of a real-time face reconstruction method with a monocular RGB-D camera according to a...

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Abstract

The invention discloses a monocular RGB-D camera real-time face reconstruction method and device, wherein, that method comprise: detecting the position of the face feature point on the input face RGBimage through an advanced face feature point detection algorithm; Obtaining three-dimensional coordinates of each feature point of the current frame according to the position of the feature points ofthe face; Acquiring the current three-dimensional coordinates of each facial feature point on the key frame; The global rigid motion from the key frame to each frame is obtained according to the three-dimensional coordinates and the current three-dimensional coordinates, so as to obtain the rigid motion result; The result of rigid motion is used as the initialization of ICP to fine-tune the rigidmotion of human face. The rigid motion results are applied to the key frame model to update the TSDF representation of the model. This method effectively removes the depth of non-face region, eliminates the influence of rigid motion, and improves the accuracy of rigid motion estimation by using facial feature points.

Description

technical field [0001] The invention relates to the technical field of three-dimensional reconstruction, in particular to a method and device for real-time face reconstruction with a monocular RGB-D camera. Background technique [0002] Among related technologies, 3D reconstruction technology is a research hotspot in the fields of computer vision and computer graphics, and is one of the core technologies in the fields of virtual reality / augmented reality, automatic driving, robotics, etc., and has a wide range of applications. In recent years, there have been many works using consumer-level depth cameras (such as Microsoft Kinect, Intel RealSense, etc.) to perform real-time 3D reconstruction of general scenes and objects. [0003] Most of this kind of work is based on the ICP algorithm to rigidly register the reconstructed geometric part and the input point cloud of the current frame, and estimate the rigid motion (global rotation and translation) of the current frame relati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/55G06T15/00
CPCG06T15/005G06T2207/10016G06T2207/10024G06T2207/30201G06T7/55
Inventor 徐枫冯铖锃
Owner TSINGHUA UNIV
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