In one embodiment, a camera includes an image sensor within a camera housing that converts light entering the camera housing through an optical filter into digital image data. The optical filter can have a variable opacity. A processor in communication with the image sensor identifies operation settings for the optical filter and adjusts an opacity level of the optical filter over an exposure period in accordance with the operation settings for the optical filter. In addition, the processor modifies values of the digital image data based at least on the operation settings for the optical filter.

The invention relates to a method, for determining a distance between an object with respect to an imaging system, improving the reconstruction of images of objects imaged by an imaging system and improving the resolution of the images obtained.

An anti-peeping device, including a transparent body and a plurality of shutter members, a plurality of accommodating grooves being formed on the transparent body, the shutter members being spaced apart, portions of the transparent body between two adjacent shutter members being light transmitting units, and each of the light transmitting units including a light incident surface and a light exiting surface. A side of each of the shutter members adjacent to a corresponding accommodating groove is formed as a light reflecting surface, and the light reflecting surface of the shutter member is provided such that an angle between a reflection direction of the light reflected from the light reflecting surface and the light exiting surface of the corresponding light transmission unit is larger than an angle between an incident direction of the light incident on the light reflecting surface and the light incident surface of the corresponding light transmission unit.

A method for imaging retinal structures involves offsetting an imaging aperture from the center of the reflected/scattered light distribution. Images are obtained with the imaging aperture at multiple offsets with respect to the center. The various obtained images are co-registered to a reference confocal image in a reference wavelength and averaged to generate high signal to noise ratio images. The images may be combined in various ways to enhance the contrast of retinal structures that would not be visible in confocal images.

The present disclosure generally discloses single-aperture multi-sensor lensless compressive image acquisition capabilities. The present disclosure generally discloses a single-aperture multi-sensor lensless camera including a programmable aperture and a set of sensors. The programmable aperture is configured to modulate an amount of light permitted to pass through the programmable aperture and has a shape defined based on a set of vertices of the programmable aperture. The sensors are arranged, with respect to each other, based on the vertices of the programmable aperture. The sensors may be arranged such that respective reference lines, between the respective vertices of the programmable aperture and the respective sensors, are parallel or substantially parallel.

A lens-free imaging system for generating an image of a scene includes an electromagnetic (EM) radiation sensor; a mask disposed between the EM radiation sensor and the scene; an image processor that obtains signals from the EM radiation sensor while the EM radiation sensor is exposed to the scene; and estimates the image of the scene based on, at least in part, the signals and a transfer function between the scene and the EM radiation sensor.

A near-eye display device includes at least one projection system configured to project an image to a target position. The projection system includes an image output module, an object lens group, an aperture-coded module, and an eyepiece. The image output module is configured to provide the image. The object lens group is configured to receive lights of the image, and includes a first lens group and a second lens group. The aperture-coded module is configured to receive the lights of the image from the first lens group and send the lights of the image to the second lens group, and the aperture-coded module sequentially provides plural coded patterns, such that the object lens group converts the image into plural relay images sequentially. The eyepiece is configured to send the relay images to the target position.

An imaging apparatus and corresponding method according to an embodiment of the present invention enables high-resolution, wide-field-of-view, high sensitivity imaging. An embodiment of the invention is a camera system that utilizes motion of an optical element, such as a spatial filtering mask or of the camera itself, to apply different spatial filtering functions to a scene to be imaged. Features of a spatial filtering mask implementing the different filtering functions are adjacent along an axis of the spatial mask, and a pitch of the features of the mask is smaller than a pitch of the sensor elements. An imaging reconstructor having knowledge of the filtering functions can produce a high-resolution image from corresponding low-resolution coded imaging data captured by the imaging system. This approach offers advantages over conventional high-resolution, wide-field imaging, including an ability to use large-pitch, lower cost sensor arrays, and transfer and store much less data.

A method and system are provided, for imaging a region of interest with pinhole based imaging. The method comprising: collecting input radiation from the region of interest through a selected set of a plurality of a predetermined number of aperture arrays, each array having a predetermined arrangement of apertures and collecting the input radiation during a collection time period, wherein said selected set of the aperture arrays and the corresponding collection time periods defining a total effective transmission function of the radiation collection, generating image data from the collected input radiation, said image data comprising said predetermined number of image data pieces corresponding to the input radiation collected through the aperture arrays respectively, processing the image data pieces utilizing said total effective transmission function of the radiation collection, and determining a restored image of the region of interest. The set of aperture arrays is preferably selected such that said total effective transmission function provides non-null transmission for spatial frequencies being lower than a predetermined maximal spatial frequency.

A system and a method for image acquisition suitable for use in a turbine engine are disclosed. Light received from a field of view in an object plane is projected onto an image plane through an optical modulation device and is transferred through an image conduit to a sensor array. The sensor array generates a set of sampled image signals in a sensing basis based on light received from the image conduit. Finally, the sampled image signals are transformed from the sensing basis to a representation basis and a set of estimated image signals are generated therefrom. The estimated image signals are used for reconstructing an image and/or a motion-video of a region of interest within a turbine engine.