Device for processing face feature point estimation image on basis of standard face model, and phusical computer-readable recording medium in which program for processing face feature point estimation image on basis of standard face medel is recorded

A computer-readable physical recording medium on which a program for executing steps is recorded with respect to a computer that performs image processing for estimating a facial landmark on a two-dimensional facial image based on a standard face model, the steps of:

• extracting a two-dimensional first landmark from the two-dimensional facial image;
• deriving, based on a geometric model of a standard face, a three-dimensional landmark set including a three-dimensional first landmark corresponding to the two-dimensional first landmark;
• deriving a two-dimensional second landmark by projecting the three-dimensional first landmark onto a two-dimensional plane;
• rearranging, based on a similarity between the two-dimensional second landmark and the two-dimensional first landmark, the two-dimensional second landmark as a two-dimensional third landmark;
• and
• re-deriving, based on the two-dimensional third landmark, the three-dimensional landmark set.

A standard face model-based facial landmark estimation image processing apparatus, the apparatus comprising:

• a two-dimensional image processor configured to extract a two-dimensional first landmark from a two-dimensional facial image and project a three-dimensional face model onto the two-dimensional facial image;
• a three-dimensional model generator configured to derive, based on a geometric model of a standard face, a three-dimensional landmark set including a three-dimensional first landmark corresponding to the two-dimensional first landmark;
• and
• a controller configured to determine, based on the two-dimensional facial image, whether to update the three-dimensional landmark set, and control the three-dimensional model generator to selectively update the three-dimensional landmark set by comparing the three-dimensional first landmark and the two-dimensional first landmark.