Device, method and computer program for generating a synthesized image from input images representing differing views

摘要

The invention relates to a method of generating a synthesized image representing a view of a scene from a first input image representing the view and a second input image representing the view, the synthesized image comprising synthesized image positions, by assigning a synthesized image data value to a synthesized image position. The method comprises determining whether input images have at the synthesized image position data values associated with them. If either one has a data value associated, that data value is assigned to the synthesized image position. If both, an average of both values is assigned. The average is a weighed average, with weighing factors being a function of a distance or distances to a closest image position with no image data value or valid image data value assigned.

主权项

1. A method of generating a synthesized image representing a view of a scene from a first input image representing the view and a second input image representing the view, the synthesized image comprising synthesized image positions, by assigning a synthesized image data value to a synthesized image position, comprising:
determining whether the first input image has a first image data value assigned to a first input image position of the first input image corresponding to the synthesized image position; determining whether the second input image has a second image data value assigned to a second input image position of the second input image corresponding to the synthesized image position; assigning the first image data value to the synthesized image position if the first image position has the first image data value assigned to it and the second image position has no image data value assigned to it; assigning the second image data value to the synthesized image position if the second image position has the second image data value assigned to it and the first image position has no image data value assigned to it; assigning a synthesized image data value to the synthesized image position if the first input image position has a first image data value assigned to it and the second input image position has a second image data value assigned to it, determining of the synthesized image data value comprising:
determining a distance between the synthesized image position and a further image position where a corresponding further first input image position or a corresponding further second input image position does not have an image data value assigned to it; andcalculating the synthesized image data value by calculating a weighted average of the first image data value and the second image data value, the weighting being a weighting function of the determined distance; and generating the synthesized image based on the calculated synthesized image data value.