Accumulation energy based three-dimensional image line clipping redirecting method

Abstract

The invention relates to an accumulation energy based three-dimensional image line clipping redirecting method. The method comprises the following steps: 1, inputting a three-dimensional image and a corresponding vision difference map; and initializing an energy matrix and an energy accumulation matrix of the input image; 2, finding out the optimal seam set of the left and right vision images based on the dynamic planning method, and recording the route; 3, accumulating the energy of each pixel on the optimal seam set route on the adjacent eight pixels; 4, detecting and accumulating the energyto adjacent two pixels in the maximum edge information direction; 5, deleting the optimal seam set; updating the energy matrix of the image, the energy accumulation matrix M and the corresponding vision difference image; and 6, iterating the abovementioned steps until the target size is met, and thus obtaining the re-directed left and right vision images and the corresponding vision difference images. With the adoption of the method, the vision distortion of three-dimensional images, caused by seam operation concentrated in some area of the images, can be effectively reduced; the geometric consistency of the left image and the right image can be maintained; and the three-dimensional image line cutting clipping performance is improved.

Description

technical field [0001] The invention relates to the fields of image processing and computer vision, in particular to a stereo image line cropping and reorientation method based on accumulated energy in image display adaptation. Background technique [0002] In recent years, image retargeting method, as a hot topic in the field of computer vision, has been paid attention to and researched by many scholars, and related achievements have emerged in an endless stream. The common goal of these methods is to change the image size or aspect ratio to adapt to the display screens of different devices, and reduce the distortion of the image content as much as possible and maintain the original image structure information. The Seam Carving (SC) method was first proposed by Avidan et al. It is an effective method for content-based image redirection. A seam refers to the optimal path composed of pixels with the lowest energy during the iterative deletion or insertion process. In order ...

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Problems solved by technology

[0004] Although the line cropping method can obtain relatively good reorientation results in most cases, in view of the geometric consistency of the left and right views of the stereo image and the 3D structural characteristics of the image, the line cropping method is to continuously delete or insert optimal seams. Realize image redirection, so it is likely to focus on a certain area to delete or insert some pixels, and it will inevitably produce serious distortion results when cutting stereoscopic image lines

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