Locating features in warped images

A non-transitory computer-readable storage medium storing instructions that, when executed on a computing device, configure the computing device to perform operations comprising:

• outputting, on a display, a source image that comprises a feature of interest, wherein the source image is associated with a source mesh;
• accessing a destination image, wherein the destination image is associated with a destination mesh and is generated from the source image based on a backward map, wherein the backward map maps points from the destination mesh to pixels from the source image;
• generating a new mesh from the destination mesh by at least changing a geometry of the destination mesh;
• generating a forward map based on the new mesh and the backward map, wherein the forward map maps points from the source mesh to pixels from the destination image;
• identifying a point from the source mesh, wherein the point from the source mesh corresponds to a pixel of the source image and is associated with the feature of interest;
• locating a pixel from the destination image based on the identified point and the forward map;
• and
• outputting, on the display, the destination image, wherein the outputting of the destination image identifies the feature of interest in the destination image based on the located pixel in the destination image.

A system comprising:

• a processor;
• and
• a memory communicatively coupled to the processor and storing instructions of an image rendering application, wherein the instructions, upon execution by the processor, cause the system to perform image rendering operations comprising:
• outputting, on a display, a source image that comprises a feature of interest, wherein the source image is associated with a source mesh;
• accessing a destination image, wherein the destination image is associated with a destination mesh and is generated from the source image based on a backward map, wherein the backward map maps points from the destination mesh to pixels from the source image;
• generating a new mesh from the destination mesh by at least changing a geometry of the destination mesh;
• generating a forward map based on the new mesh and the backward map, wherein the forward map maps points from the source mesh to pixels from the destination image;
• identifying a point from the source mesh, wherein the point from the source mesh corresponds to a pixel of the source image and is associated with the feature of interest;
• locating a pixel from the destination image based on the identified point and the forward map;
• and
• outputting, on the display, the destination image, wherein the outputting of the destination image identifies the feature of interest in the destination image based on the located pixel in the destination image.