H04N25/136

METHOD OF CORRECTING COLOR FRINGE AND METHOD OF PROCESSING IMAGE DATA USING THE SAME

A color fringe is corrected by detecting a transition region that includes pixels adjacent in a linear direction. A color difference distribution in the transition region is modeled by a logistic function. Pixel color values in the transition region are corrected using the logistic function to maximize a correlation between a correction color and a reference color with respect to the transition region. Color distortion such as color fringes is corrected without corrupting the original colors of the image by modeling the color difference by the logistic function while maximizing the correlation using information of the undistorted region. A calculation cost is reduced by reducing the number of the parameters required to optimize the logistic function.

Solid state imaging device and imaging device and driving method thereof

Provided is an a imaging device that acquires a distance image excluding influence of background light in one frame scanning period and acquires a visible image in a separate frame from a single imaging sensor, and includes an infrared light source that emits infrared light, and a solid state imaging device including a plurality of first pixels and a plurality of second pixels, which respectively include vertical overflow drains, and are arranged in a matrix on a semiconductor substrate, the plurality of first pixels converting the infrared light into signal charges, and the plurality of second pixels converting visible light into signal charges. The solid state imaging device outputs a first signal obtained from the plurality of first pixels in an irradiation period of infrared light, and a second signal obtained from the plurality of first pixels in a non-irradiation period of infrared light, in a first frame scanning period, and outputs a third signal obtained from the plurality of first pixels and a fourth signal obtained from the plurality of second pixels, in a second frame scanning period.

Image processing apparatus and method for generating a restoration image

.[.The present invention relates to an.]. .Iadd.An .Iaddend.image processing apparatus which can restore, from a color and sensitivity mosaic image acquired using a CCD image sensor of the single plate type or the like, a color image signal of a wide dynamic range wherein the sensitivity characteristics of pixels are uniformized and each of the pixels has all of a plurality of color components .Iadd.is provided.Iaddend.. A sensitivity uniformization section uniformizes the sensitivities of pixels of a color and sensitivity mosaic image to produce a color mosaic image, and a color interpolation section interpolates color components of the pixels of the color mosaic image M to produce output images R, G and B. The .[.present invention.]. .Iadd.image processing apparatus .Iaddend.can be applied to a digital camera which converts a picked up optical image into a color image signal of a wide dynamic range.

Vehicle lamp control device
09758086 · 2017-09-12 · ·

A vehicle lamp control device (1) includes: an artificial light determination unit (82) which, on the basis of an image of the surroundings of a vehicle C captured by a camera (11) mounted on the vehicle C, determines whether or not the vehicle C is located in an artificial light environment, i.e., an environment illuminated by artificial light which is light provided by artificial illumination; and a lamp controller (81) which, on the basis of the result of determination by the artificial light determination unit (82), controls turning on or turning off of a lamp (12) which outputs an illumination light to the outside of the vehicle C.

ENDOSCOPE APPARATUS
20170251915 · 2017-09-07 · ·

An endoscope includes: a light source for emitting white light or narrow band light; a color filter having a first filter for passing light in WLI and NBI, a second filter for passing light in WLI, a third filter for passing light in NBI; and a demosaicing processor that: generates a color image signal based on a luminance component in WLI under the white light; and performs interpolation for a pixel of a luminance component in WLI at a position of a pixel corresponding to the first filter using a pixel corresponding to the second filter under the narrow band light, and then, performs interpolation for a pixel of a luminance component in NBI at the position of the pixel corresponding to the first filter based on a pixel corresponding to the first filter and the pixel of the luminance component in WLI, thereby generating a color image signal.

IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, AND PHOTOGRAPHING APPARATUS

In an image processing method, an image processing device obtains an input image from an image sensor. Each pixel of the input image is either a type-I pixel or a type-II pixel. Each type-I pixel carries a luminance channel value and no color data, and each type-II pixel carries a single color channel value and no luminance data, wherein the single color channel value is a cyan channel value, a magenta channel value, or a yellow channel value. The image processing device generates a target image by performing interpolation based on the luminance channel values and the single color channel values of the pixels of the input image, wherein each pixel in the target image corresponds in location to a pixel in the input image and has three color channel values generated by the interpolation.

Imaging device with tilted pixels

The present disclosure relates to a solid-state imaging device that can achieve a high S/N ratio at a high sensitivity level without any decrease in resolution, and to an electronic apparatus. In the upper layer, the respective pixels of a photoelectric conversion unit that absorbs light of a first wavelength are tilted at approximately 45 degrees with respect to a square pixel array, and are two-dimensionally arranged in horizontal directions and vertical directions in an oblique array. The respective pixels of a photoelectric conversion unit that is sensitive to light of a second or third wavelength are arranged under the first photoelectric conversion unit. That is, pixels that are √2 times as large in size (twice as large in area) and are rotated 45 degrees are arranged in an oblique array. The present disclosure can be applied to solid-state imaging devices that are used in imaging apparatuses, for example.

Solid-state imaging device, driving method therefor, and electronic apparatus
11201186 · 2021-12-14 · ·

The present technology relates to a solid-state imaging device, a driving method therefor, and an electronic apparatus capable of acquiring a signal to detect phase difference and a signal to generate a high dynamic range image at the same time. The solid-state imaging device includes a pixel array unit in which a plurality of pixels that receives light of a same color is arranged under one on-chip lens. The plurality of pixels uses at least one pixel transistor in a sharing manner, some pixels out of the plurality of pixels are set to have a first exposure time, and other pixels are set to have a second exposure time shorter than the first exposure time. The present technology can be applied to, for example, a solid-state imaging device or the like.

OPTICAL FILTER ARRAY, PHOTODETECTION DEVICE, AND PHOTODETECTION SYSTEM
20210377498 · 2021-12-02 ·

An optical filter array is used in a photodetection device that generates image data separately for each of N (where N is an integer greater than or equal to 4) wavelength bands. The optical filter array includes a plurality of optical filters. The plurality of optical filters include plural types of optical filters differing in transmittance from each other in each of the N wavelength bands. Assuming that pi is an average of transmittances of the plurality of optical filters for light in an ith wavelength band (where i is an integer greater than or equal to 1 and less than or equal to N) of the N wavelength bands, a standard deviation of the average μ.sub.i of the transmittances for the N wavelength bands is less than or equal to 0.13.

HIGH-RESOLUTION AUTOMOTIVE LENS AND SENSOR
20220150452 · 2022-05-12 ·

A camera for use in automotive applications includes a lens system having a modulation transfer function (MTF) tuned to process light in a spectral range from red to green with greater resolution than light in a spectral range from blue to violet. The camera also includes an imager having pixel sensors arranged in a matrix and a color filter matrix including multiple color filter elements, each corresponding to a pixel sensor of the imager. The color filter matrix includes red filter elements and yellow filter elements and the number of yellow filter elements is greater than the number of red filter elements.