Method and system for depth selective segmentation of object

A system for depth selective segmentation of an object, comprising:

• an invisible light illumination unit;
• an image capturing unit, capable of capturing an image in an invisible domain of the optical spectrum;
• and
• a processing unit, used for obtaining a binary mask from the image captured in the invisible domain of the optical spectrum according to a threshold;
• wherein the processing unit eliminates part of the image captured in the invisible domain of the optical spectrum by applying the binary mask to result in a new image;
• and
• the processing unit further changes the threshold and obtains another binary mask from the latest captured image according to the changed threshold.

A system for depth selective segmentation of an object, comprising:

• an invisible light illumination unit;
• an image capturing unit capable of capturing an image in an invisible domain of the optical spectrum, used to capture an image in an invisible domain of the optical spectrum according to an exposure setting;
• and
• a processing unit, used for obtaining a binary mask from the image captured in the invisible domain of the optical spectrum according to a threshold and used for changing the light intensity or the exposure setting;
• wherein the image capturing unit captures another image in the invisible domain of the optical spectrum according to the changed light intensity or the changed exposure setting, and the processing unit eliminates part of the latest image captured in the invisible domain of the optical spectrum by using the binary mask, resulting in an image with eliminated part, and obtains at least another binary mask from the image with eliminated part.