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Binocular video depth map calculating method

A binocular video and depth map technology, applied in image analysis, image data processing, instruments, etc., can solve the problems of many blocks, slow calculation speed, inaccurate edges, etc., and achieve the effect of increasing iteration speed and improving accuracy.

Active Publication Date: 2013-08-28
TSINGHUA UNIV +1
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AI Technical Summary

Problems solved by technology

In the existing technology, there are usually many defects when obtaining the depth map through the BP (Error Back Propagation) algorithm, such as the obtaining speed is too slow, there are too many blocks, the edges are not accurate, and the depth map cannot be more realistic. Reflect the distance relationship of scene objects, etc.

Method used

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  • Binocular video depth map calculating method

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Embodiment Construction

[0030] 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.

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention provides a binocular video depth map calculating method. The method includes the following steps of carrying out edge detection on two pictures, carrying out picture segmentation on the two pictures, carrying out classification on detected edges by using of picture segmentation results, and carrying out depth calculation through improvement of a BP algorithm. According to the method, edge detection results are obtained through improving of a canny operator, then relation of the edges and the segmentation results is analyzed, the BP algorithm is improved, single transmission is carried out in different areas, and a message transmission mechanism is changed; single processing is carried out on a shielded part so as to enable the shielded part not to influence transmission of correct messages, the iteration speed is increased, and precision is improved.

Description

technical field [0001] The invention relates to the technical field of computer multimedia, in particular to a method for obtaining a binocular video depth map. Background technique [0002] Stereoscopic video is a new type of video technology that can make people feel three-dimensional. It can make users have a clear sense of reality and presence. It is the development direction of future multimedia technology. The currently commonly used stereoscopic video architecture is as follows: transmit two pieces of video at the same time, one of which is a planar video sequence to be converted, and the other is a corresponding depth map sequence, which contains the depth information of each pixel in each frame. DIBR (Depth-Image-Based Rendering, based on depth map rendering) technology can obtain virtual perspectives of real-world scenes in one or more directions, and finally synthesize stereoscopic videos. In the stereoscopic video architecture using DIBR technology, the most imp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 戴琼海马潇索津莉王竞瑶
Owner TSINGHUA UNIV
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