Granted Patent B2

US 12,464,306 · App. 18/091,966 · Granted Nov 4, 2025

Inventors: Yong Ju Lee (Daejeon, KR); Jae-hyoun Yoo (Daejeon, KR); Dae Young Jang (Daejeon, KR); Kyeongok Kang (Daejeon, KR); Tae Jin Lee (Daejeon, KR)

Assignee: Electronics and Telecommunications Research Institute

H04S7/303H04S7/305H04S2400/11

Abstract

Claims (61)

1 . A method of processing acoustic spatial information, the method comprising:

identifying at least one mesh disposed in an acoustic space;

setting a bounding box including all the vertices included in the mesh; and

generating acoustic spatial information comprising information about the bounding box;

wherein the mesh represents a geometry that exists together with an audio object and a listener in the acoustic space; and

wherein the bounding box is used to decode the geometry.

2 . The method of claim 1 , wherein the setting of the bounding box comprises setting the bounding box based on x_min that is a minimum value of an x-axis with respect to the bounding box, y_min that is a minimum value of a y-axis with respect to the bounding box, z_min that is a minimum value of a z-axis with respect to the bounding box, x_max that is a maximum value of the x-axis with respect to the bounding box, y-max that is a maximum value of the y-axis with respect to the bounding box, and z_max that is a maximum value of the z-axis with respect to the bounding box.

3 . The method of claim 2 , wherein the setting of the bounding box comprises:

determining eight vertices of the bounding box; and

determining a plurality of triangles, using the eight vertices.

4 . The method of claim 3 , wherein the eight vertices are defined as:

vertex_01=(x_min, y_min, z_min);

vertex_02=(x_max, y_min, z_min);

vertex_03=(x_min, y_max, z_min);

vertex_04=(x_max, y_max, z_min);

vertex_05=(x_min, y_min, z_max);

vertex_06=(x_max, y_min, z_max);

vertex_07=(x_min, y_max, z_max); and

vertex_08=(x_max, y_max, z_max).

5 . The method of claim 4 , wherein the plurality of triangles is defined as:

Face_01=vertices (vertex_03, vertex_05, vertex_01);

Face_02=vertices (vertex_03, vertex_05, vertex_07);

Face_03=vertices (vertex_05, vertex_08, vertex_07);

Face_04=vertices (vertex_05, vertex_08, vertex_06);

Face_05=vertices (vertex_04, vertex_06, vertex_08);

Face_06=vertices (vertex_04, vertex_06, vertex_02);

Face_07=vertices (vertex_01, vertex_04, vertex_03);

Face_08=vertices (vertex_01, vertex_04, vertex_02);

Face_09=vertices (vertex_03, vertex_08, vertex_07);

Face_10=vertices (vertex_03, vertex_08, vertex_04);

Face_11=vertices (vertex_01, vertex_06, vertex_02); and

Face_12=vertices (vertex_01, vertex_06, vertex_05).

6 . An apparatus for processing acoustic spatial information, the apparatus comprising:

a processor,

wherein the processor is configured to identify at least one mesh disposed in an acoustic space, set a bounding box including all the vertices included in the mesh, and generate acoustic spatial information comprising information about the bounding box;

wherein the mesh represents a geometry that exists together with an audio object and a listener in the acoustic space; and

wherein the bounding box is used to decode the geometry.

7 . The apparatus of claim 6 , wherein the processor is configured to set the bounding box based on x_min that is a minimum value of an x-axis with respect to the bounding box, y_min that is a minimum value of a y-axis with respect to the bounding box, z_min that is a minimum value of a z-axis with respect to the bounding box, x_max that is a maximum value of the x-axis with respect to the bounding box, y-max that is a maximum value of the y-axis with respect to the bounding box, and z_max that is a maximum value of the z-axis with respect to the bounding box.

8 . The apparatus of claim 7 , wherein the processor is configured to determine eight vertices of the bounding box and determine a plurality of triangles, using the eight vertices.

9 . The apparatus of claim 8 , wherein the eight vertices are defined as:

vertex_01=(x_min, y_min, z_min);

vertex_02=(x_max, y_min, z_min);

vertex_03=(x_min, y_max, z_min);

vertex_04=(x_max, y_max, z_min);

vertex_05=(x_min, y_min, z_max);

vertex_06=(x_max, y_min, z_max);

vertex_07=(x_min, y_max, z_max); and

vertex_08=(x_max, y_max, z_max).

10 . The apparatus of claim 9 , wherein the plurality of triangles is defined as:

Face_01=vertices (vertex_03, vertex_05, vertex_01);

Face_02=vertices (vertex_03, vertex_05, vertex_07);

Face_03=vertices (vertex_05, vertex_08, vertex_07);

Face_04=vertices (vertex_05, vertex_08, vertex_06);

Face_05=vertices (vertex_04, vertex_06, vertex_08);

Face_06=vertices (vertex_04, vertex_06, vertex_02);

Face_07=vertices (vertex_01, vertex_04, vertex_03);

Face_08=vertices (vertex_01, vertex_04, vertex_02);

Face_09=vertices (vertex_03, vertex_08, vertex_07);

Face_10=vertices (vertex_03, vertex_08, vertex_04);

Face_11=vertices (vertex_01, vertex_06, vertex_02); and

Face_12=vertices (vertex_01, vertex_06, vertex_05).

Assignments (1)

Priority Claims (2)

Continuity (1)

References Cited (15)