A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-ultraviolet light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (ICG) fluorescence mode, and a 5-aminolevulinic acid (ALA) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.

A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-ultraviolet light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (ICG) fluorescence mode, and a 5-aminolevulinic acid (ALA) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.

A system is preferably in the form of a wearable system combined with a double-function image display and image capturing screen. The system is intended to be used to display projected images on the screen and capture the 3D ambient using the image formations from the screen by means of a camera. The system more particularly relates to a display and imaging system comprising an image capturing device, a projector assembly and a passive screen, said image capturing device capturing at least one view being formed by the said passive screen in optical communication therewith.

A system is preferably in the form of a wearable system combined with a double-function image display and image capturing screen. The system is intended to be used to display projected images on the screen and capture the 3D ambient using the image formations from the screen by means of a camera. The system more particularly relates to a display and imaging system comprising an image capturing device, a projector assembly and a passive screen, said image capturing device capturing at least one view being formed by the said passive screen in optical communication therewith.

Cameras that are four imagers that form an imaging system are so configured as to be capable of acquiring parallax information based on two sets of parallax images that differ from each other in terms of imaging range for acquisition of the parallax information with the inter-camera distance reduced. The acquired parallax information is used to detect a pointing element on an irradiated region that is a projection screen to achieve interactive image projection.

Cameras that are four imagers that form an imaging system are so configured as to be capable of acquiring parallax information based on two sets of parallax images that differ from each other in terms of imaging range for acquisition of the parallax information with the inter-camera distance reduced. The acquired parallax information is used to detect a pointing element on an irradiated region that is a projection screen to achieve interactive image projection.

The technology described herein can be embodied in a stereoscopic endoscope in which the orientation of the two eyes may be determined dynamically as the endoscope is moved and rotated. This may enable an improved user-experience when using an angled stereoscopic endoscope even when it is rotated, for example, to view the sides of a cavity.

An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

Computerized methods and systems create stereoscopic presentations of digital content. A depth transformation module receives an assigned depth value for each of one or more components in a layout editor. Each of the one or more components has an associated initial spatial position in two dimensions. The depth transformation module determines a corresponding offset value from the assigned depth value for each of the one or more components. For each of the one or more components, the initial spatial position of the component is shifted by the corresponding offset value separately in a first direction and a second direction. A rendering module presents the one or more components shifted in the respective first and second directions.

The technology described herein can be embodied in a stereoscopic endoscope in which the orientation of the two eyes may be determined dynamically as the endoscope is moved and rotated. This may enable an improved user-experience when using an angled stereoscopic endoscope even when it is rotated, for example, to view the sides of a cavity.