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Two-dimensional video depth map generation process

A two-dimensional video, depth map technology, applied in image communication, image analysis, image data processing and other directions, can solve the problems of large workload, complex process, low efficiency and so on

Inactive Publication Date: 2012-07-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method processes each frame of image, the process is complicated, the workload is heavy, and the efficiency is low

Method used

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  • Two-dimensional video depth map generation process
  • Two-dimensional video depth map generation process
  • Two-dimensional video depth map generation process

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Embodiment Construction

[0034] In order to describe the present invention more specifically, the method for generating a depth map of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as figure 1 As shown, a method for generating a two-dimensional video depth map includes the following steps:

[0036] (1) Obtain a 2D video, perform switch detection on each frame of the 2D video, and mark the image as a key frame image or a non-key frame image.

[0037] First, mark the first frame image of the 2D video as a key frame image, and calculate the color histogram of each frame image of the 2D video; then, calculate the color histogram distance between the current frame image and the previous key frame image in turn according to the following formula ;

[0038] Δ ( Z 1 - Z 2 ) = ...

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Abstract

The invention discloses a two-dimensional video depth map generation process, which includes: (1), acquiring two-dimensional video and marking the key frames and non-key frames; (2) segmenting images and performing artificial depth assignment to the key frames; (3) computing depth information of the non-key frames according to depth information of the key frames; and (4), recovering a non-key frame depth map to synthesize a depth map of the whole video. The key frame images are subjected to artificial depth assignment, other images are computed by the depth map reasoning algorithm on the basis of region segmentation, and accordingly labor cost for making the depth map of the whole video is reduced greatly, the corresponding speed and efficiency is improved, the acquired depth map accords with the real depth information, and quality and effect of the video depth map are guaranteed effectively. The two-dimensional video depth map generation process can be implemented on hardware systems such as general PC (personal computers) or work stations and the like.

Description

technical field [0001] The invention belongs to the technical field of video image processing, and in particular relates to a method for generating a two-dimensional video depth map. Background technique [0002] 3D video has become an unstoppable technology boom, because of its visual impact and the realism of the scene, it is favored by a large number of technical personnel and sales personnel in industries such as film, television and advertising. However, there is still a lack of 3D video content at present, and more and more attention has been paid to converting existing 2D videos into 3D videos. The most important method is to first calculate the depth information of the original two-dimensional video, and then obtain the virtual viewpoint video image through DIBR (Depth Image Based Rendering) technology, and synthesize the corresponding three-dimensional video. [0003] Currently, there are two main methods for generating depth maps of two-dimensional video images: ...

Claims

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Application Information

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IPC IPC(8): G06T7/00H04N13/00H04N13/02
Inventor 冯杰马汉杰蔡霞黄炯顾小卫
Owner ZHEJIANG SCI-TECH UNIV
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