System and method for compressing and decompressing surface data of a 3-dimensional object using an image codec

A method for decompressing compressed surface data of a 3 dimensional object in a global digital space using an image decoder that supports an image data decompression algorithm, the method comprising:

• obtaining a compressed tiled bounding box image;
• decompressing the compressed tiled bounding box image to obtain a tiled bounding box image that comprises at least one bounding box image pair, wherein the at least one bounding box image pair comprises a grayscale image representing a depth map, and a color image representing texture;
• extracting transformation information for the at least one bounding box image pair to obtain at least one surface representation that is encoded in an oriented bounding box, wherein the at least one surface representation is parameterized in 2 dimensions as the depth map with color data;
• applying a bounding box transformation to the at least one tiled bounding box image pair to obtain oriented bounding box parameters comprising the depth map and the texture in global coordinates in the global digital space;
• positioning the surface representation in a 3 dimensional space based on the oriented bounding box parameters, and the user view input;
• and
• applying the texture from the at least one bounding box image pair to the surface representation in the 3 dimensional space to obtain at least one textured surface representation.

One or more non-transitory computer readable storage mediums storing one or more sequences of instructions, which when executed by one or more processors, causes a processor implemented method for compressing surface data of a 3 dimensional object in a global digital space, using an image encoder that supports an image data compression algorithm, the method comprising:

• decomposing the surface data into at least one surface representation that is encoded in an oriented bounding box, wherein the at least one surface representation is parameterized in 2 dimensions as a depth map with color data, and the oriented bounding box is parameterized to define a location and an orientation in the global digital space;
• transforming the oriented bounding box into a canonical camera representation to obtain canonical coordinates for the at least one surface representation;
• converting each of the at least one surface representation into at least one bounding box image pair that comprises a grayscale image representing depth, and a color image, wherein the depth map is encoded by the image encoder as the grayscale image, and wherein the color image represents texture;
• and
• tiling the at least one bounding box image pair to produce a tiled bounding box image, wherein the image encoder compresses the tiled bounding box image to obtain a compressed tiled bounding box image.

A system for compressing surface data of a 3 dimensional object in a global digital space, using an image encoder that supports an image data compression algorithm comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing one or more sequences of instructions, which when executed by the processor, performs a method comprising:
• decomposing the surface data into at least one surface representation that is encoded in an oriented bounding box, wherein the at least one surface representation is parameterized in 2 dimensions as a depth map with color data, and the oriented bounding box is parameterized to define a location and an orientation in the global digital space;
• transforming the oriented bounding box into a canonical camera representation to obtain canonical coordinates for the at least one surface representation;
• converting each of the at least one surface representation into at least one bounding box image pair that comprises a grayscale image representing depth, and a color image, wherein the depth map is encoded by the image encoder as the grayscale image, and wherein the color image represents texture;
• and
• tiling the at least one bounding box image pair to produce a tiled bounding box image, wherein the image encoder compresses the tiled bounding box image to obtain a compressed tiled bounding box image.