According to an aspect, there is provided an image sensing system comprising: a rolling shutter image sensor comprising an array of pixels in a frame arranged into a plurality of image lines extending along a width direction, and distributed in a scanning direction which is perpendicular to the width direction, wherein the rolling shutter image sensor is configured to scan the frame by sequentially scanning each image line along the scanning direction, wherein scanning each image line includes making the pixels in each image line sensitive to light for a predetermined exposure time, and then determining an intensity readout for each pixel of the respective image line; a lens system configured to project at least two similar outgoing images of an object onto the image sensor, the outgoing images offset from one another in the scanning direction, wherein the outgoing images are projected onto the image sensor such that each pixel of an outgoing image corresponding to a position on the object matches a pixel or group of pixels of another outgoing image corresponding to the respective position on the object; a light generator configured to generate at least two different colours of light, defined by different wavelengths, to illuminate the object; a timing module configured to control the light generator to sequentially generate at least two different colours of light during scanning of a single frame; and a processor configured to identify matched pixels of different outgoing images corresponding to a respective position on the object, and to resolve the colour spectrum of the respective position of the object based on the intensity readout of each matched pixel and the colours of light that the respective matched pixels were exposed to while they were sensitive.

Disclosed herein, inter alia, are methods and systems of image analysis useful for rapidly identifying and/or quantifying features.

Disclosed herein, inter alia, are methods and systems of image analysis useful for rapidly identifying and/or quantifying features.

One embodiment provides a compressive hyperspectral imaging system. The compressive hyperspectral imaging system can include a coded aperture configured to spatially encode an optical signal associated with a scene, an integrated photonic device configured to disperse the spatially encoded optical signal, and an array of photo detectors configured to detect the dispersed and spatially encoded optical signal. The output of the array of photo detectors is used for reconstruction of a hyperspectral image corresponding to the scene.

One embodiment provides a compressive hyperspectral imaging system. The compressive hyperspectral imaging system can include a coded aperture configured to spatially encode an optical signal associated with a scene, an integrated photonic device configured to disperse the spatially encoded optical signal, and an array of photo detectors configured to detect the dispersed and spatially encoded optical signal. The output of the array of photo detectors is used for reconstruction of a hyperspectral image corresponding to the scene.

A camera includes a light guiding module, an image sensing module, a spectrometer module, and a processor. The light guiding module is configured to receive external incident light and split the incident light into a first light and a second light. The image sensing module is configured to receive the first light and convert the first light into image data. The spectrometer module is configured to receive the second light and obtain spectral information of the second light. The processor is configured for adjusting image data based on the spectral information. The image data includes data of a plurality of pixels, and data of each pixel includes intensities information of three primary colors of light. The processor is configured to adjust the intensity information of each primary color of light in the data of the pixels based on the spectral information.

A camera includes a light guiding module, an image sensing module, a spectrometer module, and a processor. The light guiding module is configured to receive external incident light and split the incident light into a first light and a second light. The image sensing module is configured to receive the first light and convert the first light into image data. The spectrometer module is configured to receive the second light and obtain spectral information of the second light. The processor is configured for adjusting image data based on the spectral information. The image data includes data of a plurality of pixels, and data of each pixel includes intensities information of three primary colors of light. The processor is configured to adjust the intensity information of each primary color of light in the data of the pixels based on the spectral information.

Snapshot spectral imagers comprise an imaging lens, a dispersed image sensor and a restricted isometry property (RIP) diffuser inserted in the optical path between the source image and the image sensor. The imagers are used to obtain a plurality of spectral images of the source object in different spectral bands in a single shot. In some embodiments, the RIP diffuser is one dimensional. An optional disperser may be added in the optical path, to provide further dispersion at the image sensor. In some embodiments, all imager components except the RIP diffuser may be part of a digital camera, with the RIP diffuser added externally. In some embodiments, the RIP diffuser may be included internally in a digital camera.

Spatial resolution can be improved in multi-lens digital cameras. Each lens can have the same or similar field of view, but can be associated with different geometric distortions defining, for example, a magnification at various field of view portions. A final image can be generated based on an initial image captured by each lens. Luminance information from the magnified portions of the initial images can be combined to form final image luminance information. Chrominance information from the initial images can be combined to form final image chrominance information. The final image can be generated based on the final image luminance information and the final image chrominance information.

An optical lens assembly includes five lens elements and provides a TTL/EFL<1.0. In an embodiment, the focal length of the first lens element f1<TTL/2, an air gap between first and second lens elements is smaller than half the second lens element thickness, an air gap between the third and fourth lens elements is greater than TTL/5 and an air gap between the fourth and fifth lens elements is smaller than about 1.5 times the fifth lens element thickness. All lens elements may be aspheric.