A lens mount includes a cover member and a holder. The cover member has a first opening corresponding to a first optical system of a lens apparatus and has a second opening corresponding to a second optical system of the lens apparatus. The holder holds a filter to cover the first opening and the second opening. The holder includes a first holder disposed on one side with respect to the first and second openings in a direction orthogonal to an arrangement direction of the first and second openings, and a second holder disposed on the other side with respect to the first and second openings in the direction orthogonal to the arrangement direction. A groove portion is formed between the cover member and the holder, and the filter is insertable into the groove portion.

An image processing apparatus determines whether an image represented by image data includes two circular areas and executes predetermined processing on the image if it is determined that the image includes two circular areas. The image processing apparatus can recognize if the image data is taken with a dual-eye lens even when an image capture apparatus that has recorded the image data has not recognized that a dual-eye lens unit has been attached and processing the image appropriately.

A system for depth estimation, comprises at least a first and a second depth estimation optical systems, each configured for receiving a light beam from a scene and estimating depths within the scene, wherein the first system is a monocular depth estimation optical system; and an image processor, configured for receiving depth information from the first and second systems, and generating a depth map or a three-dimensional image of the scene based on the received depth information.

There is provided an image processing apparatus comprising. An obtainment unit obtains a first circular fisheye image accompanied by a first missing region in which no pixel value is present. A generation unit generates a first equidistant cylindrical projection image by performing first equidistant cylindrical transformation processing based on the first circular fisheye image. The generation unit generates the first equidistant cylindrical projection image such that a first corresponding region corresponding to the first missing region has a pixel value in the first equidistant cylindrical projection image.

In some embodiments, a stereoscopic imaging apparatus includes a tubular housing having a bore extending longitudinally through the housing. First and second image sensors are disposed proximate a distal end of the bore, each including a light sensitive elements on a face and mounted facing laterally outward. The apparatus further includes a first beam steering element associated with the first image sensor and a second beam steering element associated with the second image sensor. The beam steering elements receive light from first and second perspective viewpoints and direct the received light onto the faces of the image sensors forming first and second images. Either the first and second beam steering elements or the first and second image sensors are moveable to cause a change a spacing between or an orientation of the perspective viewpoints to cause sufficient disparity between the first and second images to provide image data including three-dimensional information.

A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-infrared 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-infrared 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 stereo lens apparatus includes two optical systems arranged in parallel. Each of the two optical systems includes, in order from an object side to an image side, first to third lens units. An optical path is bent at a position between the first and second lens units and at a position between the second and third lens units in each of the two optical systems so that an inter-optical axis distance between two third lens units is narrower than an inter-optical axis distance between two first lens units. Part of one holding mechanism of two holding mechanisms that are configured to respectively hold the two third lens units is located in a concave portion provided on the other holding mechanism, and part of the other holding mechanism is located in a convex portion provided on the one holding mechanism.

A stereo lens apparatus includes two optical systems arranged in parallel. Each of the two optical systems includes, in order from an object side to an image side, first to third lens units. An optical path is bent at a position between the first and second lens units and at a position between the second and third lens units in each of the two optical systems so that an inter-optical axis distance between two third lens units is narrower than an inter-optical axis distance between two first lens units. Part of one holding mechanism of two holding mechanisms that are configured to respectively hold the two third lens units is located in a concave portion provided on the other holding mechanism, and part of the other holding mechanism is located in a convex portion provided on the one holding mechanism.

An electronic apparatus includes a processor, and a memory storing a program which, when executed by the processor, causes the electronic apparatus to perform control to display an image in a display unit based on a third image including a first image captured through a first optical system, and a second image having a parallax with respect to the first image, captured through a second optical system, receive an enlargement instruction for enlarging a part of the image displayed in the display unit, and perform control, upon reception of the enlargement instruction while the third image is displayed, to display in the display unit an enlarged image including an enlarged portion of either one of the first image and the second image.