Inverse texture mapping using weighted pyramid blending and view-dependent weight maps

A system for creating a view-dependent weight map for an image, comprising:

• a general purpose computing device;
• a computer program comprising program modules executable by the computing device, wherein the computing device is directed by the program modules of the computer program to,
• input an image,
• identify regions of the inputted image which are to become part of the weight map,
• compute a 2D perspective transform for each identified region, said transform being capable of projecting the associated region to prescribed coordinates,
• warp each identified region to the prescribed coordinates using the 2D perspective transforms,
• compute a Jacobian matrix for each pixel of each warped region,
• compute the determinant of each Jacobian matrix to establish a weight factor for the associated pixel, and
• create the weight map of the inputted image using the computed determinants.

A computer-readable memory for causing a computer to create a view-dependent weight map for an image, comprising:

• a computer-readable storage medium;
• and
• a computer program comprising program modules stored in the storage medium, wherein the storage medium is so configured by the computer program that it causes the computer to,
• input an image,
• identify regions of the inputted image which are to become part of the weight map,
• compute a 2D perspective transform for each identified region, said transform being capable of projecting the associated region to prescribed coordinates,
• warp each identified region to the prescribed coordinates using the 2D perspective transforms,
• compute a Jacobian matrix for each pixel of each warped region,
• compute the determinant of each Jacobian matrix to establish a weight factor for the associated pixel, and
• create the weight map of the inputted image using the computed determinants.

A computer-implemented process for creating a combination weight map for an image comprising using a computer to perform the following steps:

• inputting an image;
• identifying regions of the inputted image which are to become part of the weight map;
• computing a 2D perspective transform for each identified region, said transform being capable of projecting the associated region to prescribed coordinates;
• warping each identified region to the prescribed coordinates using the 2D perspective transforms;
• computing a first weight factor for each pixel of each warped region using a first weight mapping process;
• computing at least one additional weight factor for each pixel of each warped region using at least one additional weight mapping process;
• combining the weight factors computed for each pixel of each warped region to create a combined weight factor;
• and
• creating said combination weight map of the inputted image using the combined weight factors.

A system for creating a combination weight map for an image, comprising:

• a general purpose computing device;
• a computer program comprising program modules executable by the computing device, wherein the computing device is directed by the program modules of the computer program to,
• input an image,
• identify regions of the inputted image which are to become part of the weight map,
• compute a 2D perspective transform for each identified region, said transform being capable of projecting the associated region to prescribed coordinates,
• warp each identified region to the prescribed coordinates using the 2D perspective transforms,
• compute a first weight factor for each pixel of each warped region using a first weight mapping sub-module,
• compute at least one additional weight factor for each pixel of each warped region using at least one additional weight mapping sub-module,
• combine the weight factors computed for each pixel of each warped region to create a combined weight factor, and
• create said combination weight map of the inputted image using the combined weight factors.

A computer-readable memory for causing a computer to create a combination weight map for an image, comprising:

• a computer-readable storage medium;
• and
• a computer program comprising program modules stored in the storage medium, wherein the storage medium is so configured by the computer program that it causes the computer to,
• input an image,
• identify regions of the inputted image which are to become part of the weight map,
• compute a 2D perspective transform for each identified region, said transform being capable of projecting the associated region to prescribed coordinates,
• warp each identified region to the prescribed coordinates using the 2D perspective transforms,
• compute a first weight factor for each pixel of each warped region using a first weight mapping sub-module,
• compute at least one additional weight factor for each pixel of each warped region using at least one additional weight mapping sub-module,
• combine the weight factors computed for each pixel of each warped region to create a combined weight factor, and
• create said combination weight map of the inputted image using the combined weight factors.