Systems and methods for determining a region of interest in medical imaging

Abstract

Systems and methods for generating a 3D model is provided. The methods may include receiving target information relating to the subject acquired by an information acquisition component and generate the 3D model of the subject based on the target information. The target information may include a plurality of images of the subject. The subject may be supported by a scanning table, and the information acquisition component may include a plurality of cameras mounted on a gantry of a medical imaging device. The plurality of cameras may be configured to acquire the plurality of images of the subject from multiple perspectives, and at least one of the plurality of cameras may be configured to acquire an image of a body side of the subject.

What is claimed is: 
     
         1 . A system for generating a 3-dimensional (3D) model of a subject, comprising:
 a storage device storing a set of instructions; and   at least one processor in communication with the storage device, wherein when executing the set of instructions, the at least one processor is configured to cause the system to:
 receive target information relating to the subject acquired by an information acquisition component, the target information including a plurality of images of the subject, wherein
 the subject is supported by a scanning table, and 
 the information acquisition component includes a plurality of cameras mounted on a gantry of a medical imaging device, the plurality of cameras being configured to acquire the plurality of images of the subject from multiple perspectives, and at least one of the plurality of cameras being configured to acquire an image of a body side of the subject; and 
 
 generate the 3D model of the subject based on the target information. 
   
     
     
         2 . The system of  claim 1 , wherein the plurality of cameras are arranged in an arc. 
     
     
         3 . The system of  claim 2 , wherein:
 the information acquisition component further includes a projector,   each of the plurality of images of the subject includes at least a portion of a structured light projected on the subject by the projector.   
     
     
         4 . The system of  claim 3 , wherein the projector includes a plurality of sub-projectors arranged in an arc, each of the plurality of sub-projectors being configured to project the at least a portion of the structured light on the subject, wherein
 at least one of the plurality of sub-projectors is configured to project the at least a portion of the structured light on the body side of the subject, and   the image of the body side of the subject acquired by the at least one of the plurality of cameras includes the at least a portion of the structured light projected on the body side of the subject.   
     
     
         5 . The system of  claim 1 , wherein the target information further includes time of flight (TOF) information associated with light pulses emitted toward the subject. 
     
     
         6 . The system of  claim 5 , wherein the information acquisition component further includes at least one of:
 a light pulse generator configured to emit the light pulses toward the subject, wherein the light pulse generator includes a plurality of sub-light pulse generators arranged in an arc, at least one of the plurality of sub-light pulse generators being configured to generate a light pulse toward the body side of the subject, or   a light pulse sensor configured to detect the light pulses reflected by the subject; wherein the light pulse sensor includes a plurality of sub-light pulse sensors arranged in an arc, at least one of the plurality of sub-light pulse sensors being configured to detect a light pulse reflected by the body side of the subject.   
     
     
         7 . The system of  claim 1 , wherein the information acquisition component is coupled to an extendable pole, the extendable pole being configured to drive the information acquisition component to move to one or more first positions. 
     
     
         8 . The system of  claim 7 , wherein the information acquisition component is configured to acquire at least a portion of the target information relating to the subject at the one or more first positions. 
     
     
         9 . The system of  claim 7 , wherein the extendable pole is coupled to the gantry of the medical imaging device or a container mounted on the gantry. 
     
     
         10 . The system of  claim 9 , wherein the information acquisition component is located inside the gantry or the container mounted on the gantry when the extendable pole is fully retracted. 
     
     
         11 . The system of  claim 10 , wherein a lid is mounted on the gantry or the container, the lid being configured to cover the information acquisition component when the extendable pole is fully retracted. 
     
     
         12 . The system of  claim 11 , wherein the lid is further configured to be opened when the extendable pole is about to drive the information acquisition component to extend out of the gantry or the container. 
     
     
         13 . The system of  claim 7 , wherein the information acquisition component is configured to continuously or discontinuously acquire the target information of the subject when the information acquisition component is driven by the extendable pole to move. 
     
     
         14 . The system of  claim 7 , wherein the scanning table is configured to drive the subject to move to one or more second positions. 
     
     
         15 . The system of  claim 14 , wherein the information acquisition component is configured to continuously or discontinuously acquire the target information of the subject during a movement of the subject driven by the scanning table. 
     
     
         16 .The system of  claim 1 , wherein the at least one processor is configured to cause the system to:
 determine a region of interest (ROI) of the subject based on the 3D model.   
     
     
         17 . A system, comprising:
 a scanning table, configured to support a subject;   a plurality of cameras configured to acquire a plurality of images of the subject from multiple perspectives; and   a medical imaging device, configured to perform a scan on the subject based on the plurality of images of the subject, wherein
 the plurality of cameras are arranged in an arc and mounted on a gantry of the medical imaging device, and 
 at least one of the plurality of cameras is configured to acquire an image of a body side of the subject. 
   
     
     
         18 . The system of  claim 17 , wherein the plurality of cameras are coupled to an extendable pole, wherein:
 the extendable pole is configured to drive the information acquisition component to move to one or more positions, and   the extendable pole is coupled to the gantry of the medical imaging device or a container of the medical imaging device.   
     
     
         19 . A system, comprising:
 a scanning table, configured to support a subject;   at least one camera configured to acquire one or more images of the subject when the at least one camera is located at one or more positions, wherein the at least one camera is coupled to an extendable pole, the extendable pole being configured to drive the at least one camera to move to the one or more positions; and   a medical imaging device, configured to perform a scan on the subject based on the one or more images of the subject, wherein   the medical imaging device includes a gantry, the extendable pole being coupled to the gantry or a container mounted on the gantry, and the at least one camera being located inside the gantry or the container mounted on the gantry when the extendable pole is fully retracted.   
     
     
         20 . The system of  claim 19 , wherein a lid is mounted on the gantry or the container, the lid being configured to cover the at least one camera when the extendable pole is fully retracted.