Depth map calculating method and device

A depth map and image technology, applied in the field of depth map calculation methods and devices, can solve the problems of high complexity and low real-time image data, and achieve the effects of improving quality, wide application range, and filtering noise

Active Publication Date: 2012-08-22
TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

The complexity of the above algorithms is generally proportional to the geometric progression of the number of pixels in an image or video frame, especially the global algorithm involves an iterative process of global optimization, and the complexity is higher
[0005] In particular, the existing depth map extraction methods do not have high real-time performance for real-time processing of image data on ordinary consumer computer hosts.

Method used

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  • Depth map calculating method and device
  • Depth map calculating method and device

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Embodiment Construction

[0026] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0027] Refer below Figure 1 to Figure 6 A method for obtaining a depth map according to an embodiment of the present invention is described.

[0028] Such as figure 1 As shown, the method for obtaining a depth map according to an embodiment of the present invention includes the following steps:

[0029] S101: Input a planar image;

[0030] Such as figure 2 As shown, the planar image includes single-channel video, dual-channel video, single-channel image sequence or dual-channel image sequence. Among them, the planar image can come...

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Abstract

The invention discloses a depth map calculating method which comprises the steps of: inputting plane image; pretreating; selectively carrying out basic depth map calculation, basic depth map real-time calculation, depth map calculation based on color segmentation and rapid depth map calculation based on color segmentation on the plane image; carrying out depth map improvement based on reference frame and color distribution and space position improvement based on current frame on the depth map obtained by calculation; and outputting the depth map obtained by calculation, the improved depth mapbased on the reference frame, the improved color distribution and space position depth map based on the current frame and the plane image. The invention can be used for improving the quality of the depth map, meets the needs of depth map calculation with multiple time and quality requirements, and is wider in application scope. The invention also discloses a depth map calculating device.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method and device for obtaining a depth map. Background technique [0002] Various existing video media generally exist in the form of a plane, but the above-mentioned video media has lost the depth information of a specific scene while acquiring it. [0003] Stereoscopic video technology, as the development direction of future multimedia technology, is a new type of video technology that can provide stereoscopic effect. Compared with single-channel video, stereoscopic video generally has two video channels, and the amount of data is much larger than single-channel video, so efficient compression of stereoscopic video is particularly important. Specifically, the stereoscopic video not only contains the surface information about the scene of the traditional two-dimensional video, but also contains the three-dimensional information related to the specific position of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/00
Inventor 戴琼海曹汛张佳宏王好谦
Owner TSINGHUA UNIV
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