An exemplary method includes generating a 3D mesh of a subject based on frames of time-synchronized video streams of a subject, the frames associated with a first time and generating a transformed facial-mesh model based on a facial portion of the 3D mesh and a facial-mesh model. The method further includes generating a hybrid mesh by combining the transformed facial-mesh model and at least a portion of the 3D mesh. The method further includes generating a current 3D mesh based on frames of the time-synchronized video streams associated with a second time that temporally follows the first time. The method further includes generating a deformed historical 3D mesh by applying a non-rigid deformation process to the hybrid mesh based on the current 3D mesh. The method further includes compressing the deformed historical 3D mesh to form at least one triangle-based 3D submesh including a plurality of submesh triangles.

Provided is an image processing device. The device includes an active pixel sensor array including a plurality of pixels configured to generate a plurality of signals corresponding to a target, and an image processor configured to generate a depth map about the target based on an intensity difference of two signals among the plurality of signals.

Provided is an image processing device. The device includes an active pixel sensor array including a plurality of pixels configured to generate a plurality of signals corresponding to a target, and an image processor configured to generate a depth map about the target based on an intensity difference of two signals among the plurality of signals.

An illustrative method includes obtaining a three-dimensional (3D) mesh of a subject, obtaining a mesh model, and generating a hybrid mesh of the subject. The generating includes replacing a portion of the 3D mesh with the mesh model such that the hybrid mesh includes a non-replaced portion of the 3D mesh represented at a first resolution and the mesh model representing the replaced portion of the 3D mesh at a second resolution.

An illustrative method includes obtaining a three-dimensional (3D) mesh of a subject, obtaining a mesh model, and generating a hybrid mesh of the subject. The generating includes replacing a portion of the 3D mesh with the mesh model such that the hybrid mesh includes a non-replaced portion of the 3D mesh represented at a first resolution and the mesh model representing the replaced portion of the 3D mesh at a second resolution.

Fluorescence imaging with reduced fixed pattern noise is disclosed. A method includes actuating an emitter to emit a plurality of pulses of electromagnetic radiation and sensing reflected electromagnetic radiation resulting from the plurality of pulses of electromagnetic radiation with a pixel array of an image sensor. The method includes reducing fixed pattern noise in an exposure frame by subtracting a reference frame from the exposure frame. The method is such that at least a portion of the plurality of pulses of electromagnetic radiation emitted by the emitter comprises one or more of electromagnetic radiation having a wavelength from about 770 nm to about 790 nm or from about 795 nm to about 815 nm.

Hyperspectral, fluorescence, and laser mapping imaging with reduced fixed pattern noise are disclosed. A method includes actuating an emitter to emit a plurality of pulses of electromagnetic radiation and sensing reflected electromagnetic radiation resulting from the plurality of pulses of electromagnetic radiation with a pixel array of an image sensor to generate a plurality of exposure frames. The method includes applying edge enhancement to edges within an exposure frame of the plurality of exposure frames. The method is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of: electromagnetic radiation having a wavelength from about 513 nm to about 545 nm, from about 565 nm to about 585 nm, from about 900 nm to about 1000 nm, an excitation wavelength of electromagnetic radiation that causes a reagent to fluoresce, or a laser mapping pattern.

Speckle removal in a pulsed fluorescence imaging system is described. A system includes a coherent light source for emitting pulses of coherent light, a fiber optic bundle connected to the coherent light source, and a vibrating mechanism attached to the fiber optic bundle. The system includes and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system is such that at least a portion of the pulses of coherent light emitted by the coherent light source comprises electromagnetic radiation having a wavelength from about 795 nm to about 815 nm.

Minimizing image sensor input/output pads in a pulsed fluorescence imaging system is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a plurality of bidirectional pads comprising an output state for issuing data and an input state for receiving data. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm and/or from about 795 nm to about 815 nm.

Minimizing image sensor input/output pads in a pulsed fluorescence imaging system is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a plurality of bidirectional pads comprising an output state for issuing data and an input state for receiving data. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises electromagnetic radiation having a wavelength from about 770 nm to about 790 nm and/or from about 795 nm to about 815 nm.