Digital image radial pattern decoding system
A digital image radial pattern decoding system is described. In one example, an unfolded digital image is formed by the radial pattern decoding system by unfolding a radial pattern in a digital image. An inflated digital image is then generated by the radial pattern decoding system by upsampling the unfolded radial pattern. A grid pattern is determined by the radial pattern decoding system based on the inflated digital image. A radial pattern cell is then generated based on a reverse transform of the grid pattern. A visual pattern is generated by the radial pattern decoding system based on the radial pattern cell.
1 . A method comprising:
forming, by a processing device, an unfolded digital image by unfolding a radial pattern in a digital image that is two-dimensional;
generating, by the processing device, an inflated digital image by upsampling the unfolded radial pattern;
determining, by the processing device, a grid pattern based on the inflated digital image;
generating, by the processing device, a radial pattern cell based on a reverse transform of the grid pattern; and
generating, by the processing device, a visual pattern based on the radial pattern cell.
2 . The method as described in claim 1 , wherein the radial pattern includes a center and a radius and the unfolding includes:
defining an unfold wall as a line between the center and the radius; and
opening up the radial pattern from the center on both sides of the unfold wall.
3 . The method as described in claim 1 , wherein the radial pattern includes a center and a radius and the unfolding includes forming a triangle having a point defined by the center and a base defined by a circumference at the radius.
4 . The method as described in claim 3 , wherein the upsampling includes:
determining a number of pixels to be added to each row based a fractional location of the row of the triangle between the point and the base; and
interpolating values for the number of pixels based on neighboring pixels within the triangle.
5 . The method as described in claim 1 , wherein:
the unfolding includes forming a triangle defined by a center of the radial pattern and a base defined by a circumference at a radius of the radial pattern; and
the inflated digital image is formed as a rectangle.
6 . The method as described in claim 1 , further comprising smoothing the inflated digital image and wherein the generating of the grid pattern is formed using the smoothed digital image.
7 . The method as described in claim 1 , wherein the determining the grid pattern includes:
forming a replicated digital image based on the inflated digital image; and
detecting the grid pattern from the replicated digital image.
8 . The method as described in claim 1 , wherein the grid pattern includes a grid pattern cell and a grid configuration.
9 . The method as described in claim 8 , wherein the generating of the radial pattern cell as the reverse transform of the grid pattern includes mapping the grid pattern cell to a radial space defined by the radial pattern in the digital image.
10 . The method as described in claim 1 , wherein the generating of the radial pattern cell is based on polar coordinate angles defining a radial repeat configuration.
11 . The method as described in claim 1 , further comprising generating a radial vector pattern by vectorizing the radial pattern cell.
12 . A computing device comprising:
a processing device; and
a computer-readable storage medium storing instructions that, responsive to execution by the processing device, causes the processing device to perform operations including;
forming a triangle from a radial pattern having a center and a radius in a digital image;
generating a rectangle from the triangle by;
determining a number of pixels to be added to each row of the triangle based on a fractional location of the row between the center and the radius in the radial pattern; and
interpolating values for the number of pixels based on neighboring pixels within the triangle; and
generating a radial pattern cell by mapping a grid pattern from the rectangle to a radial space defined by the radial pattern in the digital image.
13 . The computing device as described in claim 12 , wherein the forming of the triangle includes:
defining an unfold wall as a line between the center and the radius of the radial pattern; and
opening up the radial pattern from the center on both sides of the unfold wall.
14 . The computing device as described in claim 12 , wherein the operations further comprise smoothing the rectangle and the grid pattern is formed using the smoothed rectangle.
15 . The computing device as described in claim 12 , further comprising:
forming a replicated digital image based on the rectangle; and
detecting the grid pattern from the replicated digital image as a grid pattern cell and a grid configuration.
16 . The computing device as described in claim 12 , wherein the mapping of the grid pattern to the radial space defined by the radial pattern in the digital image is performed as a reverse transform.
17 . The computing device as described in claim 12 , wherein the operations further comprise generating a radial vector pattern by vectorizing the radial pattern cell.
18 . One or more computer-readable storage media storing instructions that, responsive to execution by a processing device, causes the processing device to perform operations including:
forming an unfolded digital image by unfolding a radial pattern in a digital image that is two-dimensional;
generating an inflated digital image by upsampling the unfolded radial pattern;
generating a grid pattern based on the inflated digital image; and
generating a radial pattern cell by mapping the grid pattern to a radial space defined by the digital image.
19 . The one or more computer-readable storage media as described in claim 18 , wherein the generating of the radial pattern cell is performed as a reverse transform of the grid pattern.
20 . The one or more computer-readable storage media as described in claim 18 , wherein the generating of the inflated digital image includes determining a number of pixels to be added to each row of the unfolded digital image based a fractional location of the row between a center and a base of the radial pattern.