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Depth image processing method based on light field

A depth image and processing method technology, applied in image data processing, image communication, graphics and image conversion, etc., can solve problems such as depth estimation that cannot be directly applied, and achieve the effects of promoting application development, expanding the scope of popularization of applications, and ensuring quality

Active Publication Date: 2016-12-14
天津中科智能识别有限公司
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Problems solved by technology

[0008] Therefore, in view of the special structure of light field imaging and the acquired 4D data, it is determined that the traditional passive stereo imaging technology cannot be directly applied for depth estimation.

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  • Depth image processing method based on light field
  • Depth image processing method based on light field
  • Depth image processing method based on light field

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Embodiment Construction

[0056] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0057] figure 1 A flow chart of a light field-based depth image processing method provided by the present invention;

[0058] see figure 1 , a kind of depth image processing method based on light field provided by the present invention comprises the following steps:

[0059] Step S101: Obtain an initial 4D light field color image and an initial depth image of a preset shooting target by shooting with a light field acquisition device;

[0060] see figure 2 , image 3 , figure 2 , image 3 The initial 4D light field color image and the initial depth image of the preset shooting target are obtained by shooting through a light field acquisition device such as a color image sensor, respectively.

[0061] It should be noted that the curre...

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Abstract

The invention discloses a depth image processing method based on a light field, comprising the steps as follows: using a light field acquisition device to get an initial 4D light field color image and an initial depth image of a default shooting target; performing preprocessing to get an initial 3D grid model of the default shooting target and a corresponding initial normal field; carrying out analysis and calculation to get the surface reflectivity of the default shooting target; modeling the light field image according to the initial normal field and the surface reflectivity of the default shooting target to get an illumination model and illumination parameters; optimizing the initial normal field of the default shooting target according to the surface reflectivity of the default shooting target and the illumination parameters of the illumination model; and enhancing the depth of the initial depth image according to the optimized normal field, and then, reconstructing the 3D grid model of the default shooting target. Through the method, the shape of a shooting target can be reconstructed based on a 4D light field, light field imaging stereo display of the shooting target can be realized, and a high-quality depth image can be obtained.

Description

technical field [0001] The invention relates to the technical fields of light field imaging, image processing and computer vision, and in particular to a light field-based depth image processing method. Background technique [0002] At present, with the continuous development of human science and technology, in computer vision systems, 3D scene information provides more possibilities for computer vision applications such as image segmentation, target detection, and object tracking. Compared with 2D images, depth images With the three-dimensional characteristic information of the object, that is, the depth information, the depth image has been widely used as a common expression method of three-dimensional scene information. Therefore, using an imaging device that can simultaneously capture color and depth information to realize the detection and recognition of three-dimensional objects will become a new hotspot in the field of computer vision, and the acquisition of depth ima...

Claims

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Application Information

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IPC IPC(8): G06T3/00H04N13/00
CPCH04N13/111H04N13/128G06T3/06
Inventor 侯广琦孙哲南谭铁牛刘菲
Owner 天津中科智能识别有限公司
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