Provided is an apparatus for obtaining an image includes an image sensor and a signal processing unit that includes a demosaicing unit configured to reconstruct a green signal to have a full pixel resolution by using the input image, a sharpening filter unit configured to generate a first image by sharpening the reconstructed green signal for each preset direction, a direction image generation unit which generates a second image by removing a base band and extracting only a detail band, a gray detection unit configured to detect a gray region of the white balance-processed input image, an edge detection unit configured to detect an edge direction of the white balance-processed input image, and a selection unit configured to generate a third image by blending the first image and the second image, based on the detected gray region and the detected edge direction.

A camera system includes a first imaging sensor, a second imaging sensor, and a controllable mirror system. The mirror system includes a mirror disposed at a fixed position to the first imaging sensor and the second imaging sensor, and a controller to control a signal applied to the mirror. The mirror system transmits a first portion of incident light through the mirror to the first imaging sensor, and reflects a second portion of the light to the second imaging sensor. A method of producing color images includes receiving incident light on a surface of the mirror, controlling the mirror to direct a first portion of the light to a first imaging sensor and a second portion of the light to a second imaging sensor, receiving first imaging sensor data from the first imaging sensor, and receiving second imaging sensor data from the second imaging sensor.

A camera system includes a first imaging sensor, a second imaging sensor, and a controllable mirror system. The mirror system includes a mirror disposed at a fixed position to the first imaging sensor and the second imaging sensor, and a controller to control a signal applied to the mirror. The mirror system transmits a first portion of incident light through the mirror to the first imaging sensor, and reflects a second portion of the light to the second imaging sensor. A method of producing color images includes receiving incident light on a surface of the mirror, controlling the mirror to direct a first portion of the light to a first imaging sensor and a second portion of the light to a second imaging sensor, receiving first imaging sensor data from the first imaging sensor, and receiving second imaging sensor data from the second imaging sensor.

Disclosed are a sensing device and an image capturing apparatus. The sensing device includes a housing assembly, a pyroelectric sensor disposed on the housing assembly, a Fresnel lens and a moving assembly. The Fresnel lens includes at least two Fresnel fringe areas with different light-condensing abilities; one of the pyroelectric sensor and the Fresnel lens is fixedly connected with the housing assembly, and another of the pyroelectric sensor and the Fresnel lens is movably coupled to the housing assembly through the moving assembly. The pyroelectric sensor and the Fresnel lens move relative to each other to switch between the Fresnel fringe area corresponding to the pyroelectric sensor. The disclosure can adjust the detection range and improve the multi-scene adaptability of the sensing device.

Disclosed are a sensing device and an image capturing apparatus. The sensing device includes a housing assembly, a pyroelectric sensor disposed on the housing assembly, a Fresnel lens and a moving assembly. The Fresnel lens includes at least two Fresnel fringe areas with different light-condensing abilities; one of the pyroelectric sensor and the Fresnel lens is fixedly connected with the housing assembly, and another of the pyroelectric sensor and the Fresnel lens is movably coupled to the housing assembly through the moving assembly. The pyroelectric sensor and the Fresnel lens move relative to each other to switch between the Fresnel fringe area corresponding to the pyroelectric sensor. The disclosure can adjust the detection range and improve the multi-scene adaptability of the sensing device.

A beam splitting device for a distal end of an endoscope, the beam splitting device comprising a first prism with a first entrance surface, a first internal incident surface, and a first exit surface; and a second prism with a second entrance surface and a second exit surface; and a dichroic beam splitting layer. The first exit surface of the first prism and the second entrance surface of the second prism are adjacent and the dichroic beam splitting layer is arranged between the surfaces so incoming beams comprising first and second spectral regions are reflected by the first internal incident surface of the first prism, incident on the first exit surface of the first prism and are split by the dichroic beam splitting layer into beams of the first spectral region and the second spectral region. An objective system and an endoscope with the beam splitting device are also presented.

A video endoscope for fluorescence imaging, with an elongate shaft and video camera at a distal end. The video camera includes an objective lens system and image acquisition system. The objective lens system configured to receive light and/or reflect from and to transmit the received light towards the image acquisition system. The image acquisition system includes: a beam splitter for splitting light first and second optical beam paths, first and second imaging chips for receiving light transmitted along the first and second beam paths, respectively. The beam splitter, and first and second imaging chips configured to facilitate concurrent acquisition of a white light image obtained by illuminating the target with white light and receiving light reflected from a target, and a fluorescence image obtained by illuminating the target with excitation light and receiving fluorescence light emitted by the target in response to illumination with excitation light.

A video endoscope for fluorescence imaging, with an elongate shaft and video camera at a distal end. The video camera includes an objective lens system and image acquisition system. The objective lens system configured to receive light and/or reflect from and to transmit the received light towards the image acquisition system. The image acquisition system includes: a beam splitter for splitting light first and second optical beam paths, first and second imaging chips for receiving light transmitted along the first and second beam paths, respectively. The beam splitter, and first and second imaging chips configured to facilitate concurrent acquisition of a white light image obtained by illuminating the target with white light and receiving light reflected from a target, and a fluorescence image obtained by illuminating the target with excitation light and receiving fluorescence light emitted by the target in response to illumination with excitation light.

An imaging apparatus includes: at least one light source that emits excitation light for irradiating an object including at least one light emitter; a coding filter array including filters whose transmission spectra differ from each other; an image sensor that captures an image of object light, which is generated by irradiating the object with the excitation light, through the coding filter array and generates compressed image data; and a processing circuit that generates hyperspectral image data based on the compressed image data. The object light includes emission light, which is produced by the at least one light emitter by absorbing the excitation light, and reflection light of the excitation light reflected by the object. The filters include two filters whose transmission spectra differ from each other. A spectrum of the excitation light overlaps a transmission region in the transmission spectrum of each of the two filters.

An imaging apparatus includes: at least one light source that emits excitation light for irradiating an object including at least one light emitter; a coding filter array including filters whose transmission spectra differ from each other; an image sensor that captures an image of object light, which is generated by irradiating the object with the excitation light, through the coding filter array and generates compressed image data; and a processing circuit that generates hyperspectral image data based on the compressed image data. The object light includes emission light, which is produced by the at least one light emitter by absorbing the excitation light, and reflection light of the excitation light reflected by the object. The filters include two filters whose transmission spectra differ from each other. A spectrum of the excitation light overlaps a transmission region in the transmission spectrum of each of the two filters.