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Motion-vector extraction method easy for hardware implementation in 2D-to-3D conversion technology

A motion vector, hardware implementation technology, applied in electrical components, image data processing, instruments, etc., can solve the problem of large computational complexity, achieve the effect of easy implementation, improve accuracy, reduce computational complexity and computational complexity

Inactive Publication Date: 2012-08-01
XI AN JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

[0004] Most of the existing motion vector detection algorithms are block matching for the whole image, and the computational complexity is relatively large.

Method used

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  • Motion-vector extraction method easy for hardware implementation in 2D-to-3D conversion technology
  • Motion-vector extraction method easy for hardware implementation in 2D-to-3D conversion technology
  • Motion-vector extraction method easy for hardware implementation in 2D-to-3D conversion technology

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is further described in detail,

[0023] A motion vector extraction method that is easy to implement in hardware in a 2D to 3D technology, comprising the following steps: see figure 1 , step 1, extracting the motion vector of the object edge; step 2, layering the image; step 3, marking the connected domain of the image; step 4, combining step 1 and step 3 to generate a motion vector map.

[0024] Step 1. Extract the motion vector of the edge of the image

[0025] To obtain the motion vector of the image, first perform the operation of extracting the edge of the image, and then perform block matching on the blocks at the edge of the object in the input image of two consecutive frames to obtain their motion vector;

[0026] see figure 2 , this step is specifically: after reading in the two frames of images before and after, this step will filter the images using the Sobel operator to generate their e...

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Abstract

The invention relates to a motion-vector extraction method easy for hardware implementation in a 2D-to-3D conversion technology. The motion-vector extraction method comprises the following steps of: extracting motion vectors from image information of two continuous frames, and generating a vector diagram; when the images of the two frames are matched, carrying out motion matching on points on the edges of objects in the images firstly; then blocking the images by image layering and connected domain labeling, wherein the same block is considered to have the same motion vector; and obtaining a final motion vector diagram by combination of a blocking result and the previsou edge motion vector. The motion-vector extraction method has the advantages that on the basis of obtaining an accurate motion vector detection result, not only can the operation time be saved, but also the operation amount is greatly reduced compared with that of the method for direct full-image matching, and the implementation on hardware is facilitated.

Description

technical field [0001] The invention belongs to the technical field of video image processing, and in particular relates to a motion vector extraction method which is easy to be implemented by hardware in the 2D to 3D technology. Background technique [0002] 2D to 3D technology can be applied to head-mounted stereoscopic displays, 3D TVs, 3D displays, etc., to realize the function of converting digital video signals from 2D format to 3D format, aiming at outputting stable high-quality 3D images with sufficient brightness and no flickering. 2D to 3D technology, through the process of depth map extraction, stereo model generation, 3D video synthesis, scaling and image quality processing to complete the conversion of 2D video signal to 3D video signal with specific resolution. Stereoscopic displays and TVs using 2D-to-3D chips are in the initial stage of development, but it is the general trend to achieve substantial development, and can truly realize the goal of portable 3D t...

Claims

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Application Information

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IPC IPC(8): G06T7/20H04N13/00
Inventor 任鹏举葛晨阳李倩敏陈磊江豪姚慧敏郑南宁
Owner XI AN JIAOTONG UNIV
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