975results about "Stereoscopic photography" patented technology

Provided is a system and method for pipe monitoring. The system includes a sensor arrangement comprising a visual sensor, an inertial sensor, and a laser projector, and at least one processor configured to: project a laser on an inner surface of a pipe with the laser projector; emit light with a light-emitting device on the inner surface of the pipe; capture a plurality of frames of the inner surface of the pipe with the visual sensor, wherein at least a subset of frames of the plurality of frames is captured while the laser is projected on the inner surface, and wherein the at least a subset of frames or a different subset of frames is captured while the light illuminates the inner surface; and generate a 3D reconstruction of the inner surface of the pipe based on the plurality of frames.

To generate a high-quality virtual viewpoint content.SOLUTION: An information processing apparatus determines an attention area for a range to be photographed by a plurality of photographing devices, and determines the roles of the plurality of photographing devices on the basis of the determined attention area. The information processing apparatus generates a three-dimensional model of a subject used for generation of a virtual viewpoint image, from images photographed by the plurality of photographing devices which are synchronized with each other, on the basis of the determined roles of the photographing devices.SELECTED DRAWING: Figure 3

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.

A lens apparatus includes a base member having a first opening corresponding to a first optical system and a second opening corresponding to a second optical system, and a holding member that holds the base member. The base member includes a first positioning portion formed at a position distant from a center of the first opening and a center of the second opening, and a second positioning portion formed at a position opposite to the first positioning portion with respect to a midpoint between the center of the first opening and the center of the second opening, and configured to restrict the base member from rotating about an optical axis relative to the holding member. A predetermined inequality is satisfied.

The invention discloses an optical coherence tomography device for optimizing aberration digital compensation and an imaging method, the device comprises an optical coherence tomography device and an image processing module, and the optical coherence tomography device comprises an illumination module, an interference module, an area array detection module and a synchronous control module. The imaging method comprises the following steps: setting device light source parameters according to coherent gating, and determining a sampling matching relation of the area array detection module according to a sampling theorem; selecting a frequency sweeping mode or a time domain mode, electrifying to activate a corresponding light source and a synchronous time sequence, and adjusting the position of a reference mirror; collecting a full-field interference sequence of the area-array camera, performing digital aberration compensation, performing compensation and denoising on volume data of different depths, and exporting a three-dimensional diffraction limit image; and outputting a three-dimensional tomographic image with transverse diffraction limit and axial micron-level resolution. According to the invention, the imaging resolution and the imaging speed of optical coherence tomography are improved under the conditions that the camera specification is reduced, the GPU dependence is reduced and the system cost is reduced.

The present invention provides: a lens and an image display device in which ghosting is suppressed when applied to a virtual reality display device using a pancake lens; and a virtual reality display device in which ghosting is suppressed. A lens according to the present invention which has a retardation layer for converting circularly polarized light into linearly polarize light, wherein: said retardation layer includes a first optically anisotropic layer and a second optically anisotropic layer; the first optically anisotropic layer and the second optically anisotropic layer have reverse wavelength dispersibility; and at least one layer among the first optically anisotropic layer and the second optically anisotropic layer is a layer obtained by immobilizing a twist-oriented liquid crystal compound having a helical axis in the thickness direction. An image display device according to the present invention has an image display panel, an absorption-type polarizer, and said retardation layer, in this order. A virtual reality display device according to the present invention has said lens or said image display device.

A camera system contains 3 or more identical cameras fixedly attached to a common platform and positioned in a manner with images of a pair of 2 cameras having overlap and defining an area of an image sensor that generates no overlap image data, called an active image sensor area. Image data generated by active image sensor areas being combined to an extended image space. Displaying a real-time panoramic video image based on the extended image space. Image data of a camera is undistorted by image calibration with a trained neural network. Determining active areas of image sensors with a convolutional neural network and reinforcement learning. Deriving an image window in the extended image space as an e-gimbal. Incorporating the cameras system in a portable and mobile housing.

A system projects a user-viewable, computer-generated or -fed image, wherein a head-mounted projector is used to project an image onto a retro-reflective surface, so only the viewer can see the image. The projector is connected to a computer that contains software to create virtual 2-D and or 3-D images for viewing by the user. Further, one projector each is mounted on either side of the user's head, and, by choosing for example a retro angle of less than about 10 degrees, each eye can only see the image of one of the projectors at a given distance up to 3 meters, in this example, from the retro-reflective screen. The retro angle used may be reduced with larger viewing distance desired. These projectors use lasers to avoid the need for focusing, and in some cases these projectors use instead of lasers highly collimated LED light sources to avoid the need for focusing.

An eyewear device having an image processor operable in a camera pipeline for computer vision (CV) and in augmented reality (AR) systems. The image processor is configured to selectively control a plurality of cameras to provide images having a first resolution in the high power AR mode, and to provide the images having a second resolution in the low power CV mode. The first resolution is higher than the second resolution, and the plurality of cameras consume less power in the CV mode than the AR mode. The image processor controls the camera pipeline to process the first resolution high IQ images from the plurality of cameras to operate in the AR mode, and controls the camera pipeline to process the second resolution lower IQ images from the plurality of cameras to operate in the CV mode. Substantial power is saved by reducing the resolution of the images using downscaling in the cameras themselves in the CV mode.

The invention discloses a vehicle-mounted holographic projection device and a vehicle, and belongs to the technical field of vehicle-mounted display.The vehicle-mounted holographic projection device comprises a bottom cover, an IVI host is arranged on the bottom cover, a holographic projection shell is buckled to the top of the bottom cover, a loudspeaker is arranged on the side face of the bottom cover through a support, and a display screen is obliquely arranged on the bottom cover through a supporting frame; an instruction acquisition sensor is arranged at one end, close to the top of the bottom cover, of the display screen, optical glass is arranged at the position, close to the top, of the holographic projection shell through a screen support, and decorative glass is arranged at the position, corresponding to the optical glass and the instruction acquisition sensor, of the top of the holographic projection shell in a closed mode. According to the vehicle-mounted holographic projection device and the vehicle, holographic projection is used, the integrated continuity of interior modeling can be improved, non-contact operation is achieved, gesture and sound control is more convenient, and the science and technology feeling of a product is improved through change of the holographic projection display effect.

An eyewear device having an image processor operable in a camera pipeline for computer vision (CV) and in augmented reality (AR) systems. The image processor is configured to selectively control a plurality of cameras to provide images having a first resolution in the high power AR mode, and to provide the images having a second resolution in the low power CV mode. The first resolution is higher than the second resolution, and the plurality of cameras consume less power in the CV mode than the AR mode. The image processor controls the camera pipeline to process the first resolution high IQ images from the plurality of cameras to operate in the AR mode, and controls the camera pipeline to process the second resolution lower IQ images from the plurality of cameras to operate in the CV mode. Substantial power is saved by reducing the resolution of the images using downscaling in the cameras themselves in the CV mode.

The invention discloses a monocular four-dimensional imaging device and method based on a metasurface. The monocular four-dimensional imaging device comprises an image sensor and an imaging optical system arranged in front of the image sensor. Wherein the imaging optical system comprises a metasurface, the metasurface is designed to simultaneously generate a self-acceleration Airy point spread function with depth-dependent lateral displacement for incident left-hand circularly polarized light and right-hand circularly polarized light, and the self-acceleration Airy point spread function can generate a self-acceleration Airy point spread function with depth-dependent lateral displacement under the condition that a mechanical moving part is not used. Carrying out polarization separation and focusing on the left-hand circularly polarized light and the right-hand circularly polarized light; the image sensor is used for recording a mixed image containing the left-hand circularly polarized light information and the right-hand circularly polarized light information at the same time through single exposure so as to obtain three-dimensional depth and polarization information of the metasurface, namely monocular four-dimensional imaging of the metasurface. The scene perception and understanding capability of a machine is greatly enhanced, and the method has unique advantages in the aspects of target identification, material discrimination, severe environment perception and the like.

An inspection system for capturing a topography of a surface includes a support frame configured to be positioned over the surface, at least three light sources configured to be mounted at different locations on the support frame, and at least two cameras each having a viewing direction and configured to be mounted at different locations on the support frame in a manner such that the viewing direction of each camera points generally toward a common region of the surface. The inspection system also includes a processor configured to: temporarily activate the light sources one at a time and cause all the cameras to capture a respective plurality of images of the common region each time a light source is activated, and combine the images in a manner that results in a reconstructed surface representing the topography of the common region.

Structured light imaging equipment comprises a projection lighting device, an imaging device and a control device, the projection lighting device comprises a first light source, a first polarizer, a second light source, a second polarizer, a light combining device and a spatial light modulator, the first light source and the first polarizer can generate first polarized light, and the second light source and the second polarizer can generate second polarized light. The light combining device combines the first polarized light or the second polarized light or combines the first polarized light and the second polarized light into one path of polarized light and emits the polarized light to the spatial light modulator, and the spatial light modulator modulates light beams entering the spatial light modulator into specific structured light so as to project the structured light to an imaged object; the imaging device comprises a polarization analyzer and an image sensor. The polarization analyzer carries out polarization analysis on structure reflected light reflected by an imaged object and then projects the structure reflected light to the image sensor for imaging. The control device controls on and off of the first light source and the second light source. The structured light imaging equipment can restrain high light reflection and improve the precision and integrity of three-dimensional reconstruction of a high-light-reflection object.

Solid-state imaging with simultaneously capture of images in infrared and visible light is disclosed. In one example, a solid-state imaging device includes a lens optical system, first and second photoelectric conversion units, and a storage unit. The first photoelectric conversion unit detects visible light. The second photoelectric conversion unit is aligned with the first photoelectric conversion unit and detects infrared light. The storage unit stores an amount of aberration at a focal point between the visible light and the infrared light. After focusing on a focal point of light in a second wavelength range detected by the second photoelectric conversion unit, the solid-state imaging device compensates for the aberration at a focal point between the visible light and the infrared light on the basis of the amount of aberration.

A lens apparatus (200) includes a lens (211R,211L) disposed closest to an object, a holder (212) holding the lens, a cover (213) having a first opening (213A) to expose the lens when viewed from an optical axis direction of the lens and being positioned with the holder in the optical axis direction, and an exterior member (204) having a second opening (204F) to engage with an outer diameter of the cover. A first gap in a diameter direction orthogonal to the optical axis direction formed between the holder and the cover is larger than a second gap in the diameter direction formed between the exterior member and the cover.

A camera module for a maritime vehicle. The camera module includes a frame comprising first and second openings, first and second windows disposed in the frame immediately adjacent the first and second openings, respectively, a retention plate coupled to the frame and configured to retain the first and second windows in the frame immediately adjacent the first and second openings, a stereo camera disposed within the frame, the stereo camera disposed immediately adjacent the first opening, and an infrared (IR) camera disposed within the frame, the IR camera disposed immediately adjacent the second opening.

The present disclosure is directed to a camera configured to capture a set of oblique images along a scan path on an object area; a scanning mirror structure including at least one surface for receiving light from the object area, the at least one surface having at least one first mirror portion at least one second portion comprised of low reflective material arranged around a periphery of the first mirror portion, the low reflective material being less reflective than the first mirror portion; and a drive coupled to the scanning mirror structure and configured to rotate the scanning mirror structure about a rotation axis based on a scan angle. The at least one second portion can be configured to block light that would pass around the first mirror portion and be received by the camera at scan angles beyond the set of scan angles.

A head-tracking multi-view display includes a multi-beam backlight that provides a plurality of light beams having different principal angular directions corresponding to different view directions of a multi-view image. A processor receives a plurality of provisional views of the multi-view image. The provisional views correspond to different view directions. The processor receives information regarding a tracking position of a user. The processor shifts the provisional views with respect to the view directions to form a plurality of shifted views corresponding to different view directions. The shifted views vary as a function of the tracking position of the user and are shifted by a shift value that varies across the field of view of the multi-view image. A light valve array modulates the plurality of light beams to provide the plurality of shifted views of the multi-view image in the view directions as the multi-view image.

The present disclosure relates to an image modification process used to generate a chosen type of stereoscopic video of the common field of view shared by two cameras without requiring any pre-set and arrangement normally needed for stereoscopic display. The process can use left and right video streams of images originating from a wide range of camera types sharing some portion of their respective fields of view that are not limited to a specific relative orientation (convergent, parallel or divergent) and can be used to adapt in real time the stereoscopic video to be displayed to a viewer where his dynamic inputs are constantly updated. The proposed method can be used to optimize, correct and or allow the use of various apparatuses (webcams, cameras, scanners, etc.) that may come out of the production lines with imperfects to the capture cameras.

A control apparatus for an image display system that includes a first optical system configured to form a first optical image of an object, a second optical system configured to form a second optical image of the object, a first driving unit configured to move a first imaging position of the first optical image and a second imaging position of the second optical image, a second driving unit configured to move the second imaging position, and an operation unit operable to adjust the second driving unit includes a memory storing instructions, and a processor configured to execute the instructions to acquire information regarding the first imaging position and the second imaging position, and cause a display unit to display the information in a case where the second driving unit moves the second imaging position in accordance with an operation on the operation unit.

To provide an intraoral scanner, an intraoral scanning system, an intraoral scanning method and a computer program product. [Solution] An intraoral scanner (3) for intraoral stereo vision is proposed. The intraoral scanner (3) comprises a projector (4) for projecting a dot pattern (6) onto an imaging target, the projector (4) having a radiation light source and an optical system for generating the dot pattern (6) from radiation emitted from the radiation light source, and at least two cameras (7, 8) for imaging the pattern (6) projected onto an imaging target (2), the cameras (7, 8) being arranged to have overlapping fields of view on the imaging target. The dot pattern (6) is a non-periodic dot pattern generated by a two-dimensional microlens array arranged non-periodically on a substrate, the microlens array being the final beam shaping optical element before the imaging target in the radial direction. The intraoral scanner (3) can be used in an intraoral scanning system and a method for generating a three-dimensional model of a dentition (2) based on an intraoral scan.

To provide a compact lens device including a plurality of bending optical systems.SOLUTION: A lens device (200) includes a first optical system (201R), a second optical system (201L) arranged in parallel with the first optical system, and a first driving part (252) including an actuator for moving at least one of the first optical system and the second optical system. Each of the first optical system and the second optical system has a first optical axis, a second optical axis, and a third optical axis in order from an object side to an image side. A distance between the first optical axis of the first optical system and the first optical axis of the second optical system is longer than a distance between the third optical axis of the first optical system and the third optical axis of the second optical system. When viewed from a device top face, at least a part of the first driving part is arranged between the first optical axis of the first optical system and the first optical axis of the second optical system on a plane including the respective first optical axes of the first optical system and the second optical system.SELECTED DRAWING: Figure 7

A camera system (100) for imaging in harsh environments. The camera system comprises a body with a first tubular casing, a second tubular casing, and a longitudinal strut which couples the first tubular casing to the second tubular casing to rigidly maintain the first and second tubular casings in a parallel, side by side relationship. The first and second tubular casing both define a front aperture for providing access to their respective interior space. The camera system also comprises a camera mounting endcap arranged to be coupled to the body to seal both front apertures. The camera mounting endcap comprises at least two camera mounting formations for coupling cameras to the camera mounting endcap. The camera mounting endcap has a viewing port for each respective camera to allow each camera to view the harsh environment through a front aperture. The camera mounting formations are arranged to rigidly maintain the cameras in a parallel, side by side relationship.

A structured light imaging device, a three-dimensional imaging method therefor, and a storage medium. The structured light imaging device comprises two polarizers which generate polarized light, a light-combining device, and a polarization analyzer, and can suppress high reflectivity and improve the accuracy and integrity of three-dimensional reconstruction. The three-dimensional imaging method comprises: using two rays of polarized light to perform structured light projection so as to obtain a first polarized structured light image and a second polarized structured light image of an imaged object, and separately using the images to perform three-dimensional reconstruction so as to obtain a first height image and a second height image; on the basis of the first polarized structured light image and the second polarized structured light image, determining whether there are multiple reflections on the imaged object surface corresponding to a pixel position, and if not, then determining a final height value of the pixel position on the basis of the height values of the first height image and the second height image at said pixel position, thereby reducing the impact which multiple reflections on the object surface have on reconstruction accuracy and integrity.

An image system (2) is provided with: an aerial image forming optical system (6) which has retroreflective characteristics and forms an aerial image (16) representing a three-dimensional object (4) by imaging light from the three-dimensional object (4) in the air; a first lens array (8) disposed at or near the imaging position of the aerial image (16) and having a plurality of first lenses (34) disposed in a two-dimensional shape; and a camera (10) having an imaging lens (36) and an imaging element (38), and outputting a three-dimensional element image signal including light ray information relating to light rays from the aerial image (16) by imaging the light rays from the aerial image (16) that have passed through the first lens array (8).

A video is preferably displayed on outside of a space. The present invention contributes to “the third goal: Good Health and Well-being (for all people)”, “the ninth goal: Industry, Innovation and Infrastructure” and “the eleventh goal: Sustainable Cities and Communities” of the sustainable development goals. An air floating video display system includes: a display panel configured to display a video; a light source apparatus for the display panel; a retroreflector configured to reflect video light emitted from the display panel and to cause the reflected light to aerially display an air floating video of a real image; and a video light control sheet configured to convert an optical path of the video light. The video light control sheet is arranged between the retroreflector and the display panel to adjust an emission direction and a divergence angle of a video light flux emitted from the display panel.

A spectroscopic 3D image display device according to the present disclosure includes: at least one first projection type image display device that uses first illumination light to display an image; at least one second projection type image display device that uses second illumination light to display an image; and a system controller that carries out control so that the first and second projection type image display devices are synchronously driven. A light source device of the first projection type image display device emits, with prescribed output power, first blue light having the central wavelength λa, and switches the intensity of the output power and emits third blue light. A light source device of the second projection type image display device emits, with prescribed output power, second blue light having the central wavelength λb. The central wavelengths λa, λb, and λc satisfy λb≤λc<λa.

The utility model belongs to the technical field of specimen scanning equipment, and discloses a specimen scanning device which comprises a base, a horizontal rotating structure, a vertical rotating structure and a camera. A scanning position capable of fixing a sample is arranged on the base; the horizontal rotating structure comprises a horizontal adapter and a horizontal driving mechanism, the horizontal adapter is rotatably arranged on the base, and the horizontal driving mechanism is fixedly arranged on the horizontal adapter; the vertical rotating structure comprises a vertical adapter seat and a vertical driving mechanism, the vertical adapter seat is rotatably arranged on the horizontal adapter seat, and the vertical driving mechanism is fixedly arranged on the horizontal adapter seat; the camera is arranged on the vertical adapter. The horizontal rotating structure is matched with the vertical rotating structure, and the camera can rotate on the horizontal plane and / or the vertical plane at the same time under the driving of the horizontal driving mechanism and / or the vertical driving mechanism and is always opposite to the scanning position, so that image acquisition and modeling of a sample can be completed by using a single camera, and the cost is reduced to a great extent.