Depth perception

A non-transitory computer-readable storage medium encoded with a computer program to be loaded on a computer arrangement, said computer program comprising instructions for causing the computer arrangement to render output values of output pixels of an output image, (i) on basis of input pixels of an input image and (ii) on basis of depth related data elements corresponding to the respective input pixels, the computer arrangement comprising processing means, an input interface and a memory, the computer program product, after being loaded, providing said processing means with the capability to carry out:

• computing shift values to be applied to the input pixels, on basis of the respective depth related data elements;
• computing the output pixels on basis of shifting the input pixels with the respective shift values, wherein the input pixels are categorized into two groups of pixels in which a first group of pixels represent overlay information and a second group of pixels represent non-overlay information, further wherein computing shift values results into an output value of a corresponding output pixel as a first one of the shift values, which is substantially equal to zero if the corresponding first one of the input pixels corresponds to overlay, independent of the corresponding depth related data element;
• receiving, via the input interface, an indication of a first group of pixels of the input pixels which correspond to overlay and a second group of pixels of the input pixels which correspond to non-overlay, the first group of pixels and the second group of pixels forming the input image;
• establishing, on basis of a further portion of the depth related data elements, whether there is an empty area in the output image to which none of the pixels of the first group of pixels is to be mapped and to which none of the pixels of the second group of pixels is to be shifted;
• and
• selecting a particular one of the second group of pixels for computing a third one of the output pixels situated in the empty area, whereby the computer arrangement is configured to select the particular one of the second group of pixels in the environment of the empty area.

A method implemented via a processor of rendering output values of output pixels of an output image, (i) on basis of input pixels of an input image and (ii) on basis of depth related data elements corresponding to the respective input pixels, the method comprising:

• computing shift values to be applied to the input pixels, on basis of the respective depth related data elements;
• computing the output values of the output pixels on basis of shifting the input pixels with the respective shift values, wherein the input pixels are categorized into two groups of pixels in which a first group of pixels represent overlay information and a second group of pixels represent non-overlay information, further wherein computing shift values results into an output value of a corresponding output pixel as a first one of the shift values, which is substantially equal to zero if the corresponding first one of the input pixels corresponds to overlay, independent of the corresponding depth related data element;
• receiving an indication of a first group of pixels of the input pixels which correspond to overlay and a second group of pixels of the input pixels which correspond to non-overlay, the first group of pixels and the second group of pixels forming the input image;
• establishing, on basis of a further portion of the depth related data elements, whether there is an empty area in the output image to which none of the pixels of the first group of pixels is to be mapped and to which none of the pixels of the second group of pixels is to be shifted;
• and
• selecting a particular one of the second group of pixels for computing a third one of the output pixels situated in the empty area, whereby the computer arrangement is configured to select the particular one of the second group of pixels in the environment of the empty area.