Systems and methods for generating a structured light depth map with a non-uniform codeword pattern

An apparatus for generating a depth map of a scene, the apparatus comprising:

• a projector configured to project, onto the scene, a codeword pattern including a plurality of light points including a first set of light points projected at a first intensity and a second set of light points projected at a second intensity greater than the first intensity;
• a receiver configured to detect, from the scene, a reflection of the codeword pattern;
• and
• a processor configured to:
• generate a first depth map layer at a first resolution;
• generate a second depth map layer at a second resolution lower than the first resolution;
• and
• generate the depth map of the scene, wherein the depth map includes depth information for the scene according to each of the first depth map layer and the second depth map layer.

An apparatus for generating a depth map of a scene, the apparatus comprising:

• means for projecting, onto the scene, a codeword pattern including a plurality of light points including a first set of light points projected at a first intensity and a second set of light points projected at a second intensity greater than the first intensity;
• means for detecting, from the scene, a reflection of the codeword pattern;
• means for generating a first depth map layer at a first resolution,
• wherein the means for generating further generates a second depth map layer at a second resolution lower than the first resolution;
• and
• wherein the means for generating further generates the depth map of the scene, wherein the depth map includes depth information for the scene according to each of the first depth map layer and the second depth map layer.

A non-transitory computer-readable medium comprising code that, when executed, causes a processor of an apparatus to:

• project, onto a scene, a codeword pattern including a plurality of light points including a first set of light points projected at a first intensity and a second set of light points projected at a second intensity greater than the first intensity;
• detect, from the scene, a reflection of the codeword pattern;
• generate a first depth map layer at a first resolution;
• generate a second depth map layer at a second resolution lower than the first resolution;
• and
• generate a depth map of the scene, wherein the depth map includes depth information for the scene according to each of the first depth map layer and the second depth map layer.