72 results about "Colour filter array" patented technology

A pixel array includes photodiodes and a color filter array. A first fraction of the photodiodes is included in CIS pixels and a second fraction of the photodiodes is included in hybrid CIS / EVS pixels. The photodiodes are arranged into groupings. The color filter array includes first, second, and third color filters arranged in a mosaic pattern over the photodiodes. Each grouping includes a plurality of subgroupings including a first subgrouping disposed under at least one of the first color filters, a second subgrouping disposed under at least one of the second color filters, and a third subgrouping disposed under at least one of the third color filters. Each of the first, second, and third subgroupings includes at least one CIS pixel, and at least one of the first subgrouping of photodiodes further includes at least one hybrid CIS / EVS pixel disposed under at least one of the first color filters.

Each smallest repeating unit (SRU) in a colour filter array has a first sub-unit (FSU) and a second sub-unit (SSU). For a first sub-image, first image data is read out from photo-sensitive cells that correspond to FSUs of SRUs lying in a row (R1-R3) or column, and by skipping reading out from photo-sensitive cells that correspond to SSUs of a first predefined percent (FPP) of the SRUs, while reading out the first image data from photo-sensitive cells that correspond to SSUs of a remainder of the SRUs. For a second sub-image, second image data is read out from photo-sensitive cells that correspond to FSUs of the FPP, whilst skipping reading out from photo-sensitive cells that correspond to FSUs of the remainder, and by skipping reading out from photo-sensitive cells that correspond to the SSUs of the SRUs. Sub-pixel shift is performed between the sub-images. Image(s) are then generated from the sub-images.

Disclosed is an imaging system with image sensor and processor(s). The image sensor has a plurality of photo-sensitive cells and a colour filter array. The processor(s) is configured to read out unprocessed colour data from those photo-sensitive cells that correspond to the colour filters of the at least three different colours; generate coarse depth data by processing data read out from at least one of: those photo-sensitive cells that correspond to the colour filters that allow the at least one infrared wavelength to pass through the PDAF photo-sensitive cells; perform interpolation and demosaicking on the unprocessed colour data and the coarse depth data, using at least one neural network, to generate a full-resolution colour data and a full-resolution depth data; and reproject the full-resolution colour data from a given camera pose to a given eye pose of a user, by utilising the full-resolution depth data.

Disclosed is an imaging system with an image sensor and processor(s). The image sensor has a plurality of photo-sensitive cells arranged on a photo-sensitive surface of the image sensor; a colour filter array with colour filters of at least three different colours; and a polarisation mask with polarisation filters arranged on an optical path of at most a first predefined percent of the colour filters. The processor(s) is / are configured to: read out image data from the image sensor; and process the image data to generate at least one of: a full-resolution colour image, a full-resolution polarisation image, a high-dynamic range (HDR) image.

A CMOS image sensor includes a unit pixel array including a photodiode array, a color filter array, a micro-lens array, and a grid isolation structure laterally separating adjacent color filters. The grid isolation structure includes a first low-n grid, a second low-n grid underlying the first low-n grid, and a metal grid within the second low-n grid, the first low-n grid being narrower than the second low-n grid. The color filter array includes color filter matrixes, all color filter matrixes have the same arrangement pattern. Sizes of color filters in each color filter matrix vary depending on locations of the color filters in the color filter matrix. In an edge portion, a distance between a center of a color filter matrix and a center of a corresponding unit pixel matrix in plan view varies depending on a location of the unit pixel matrix in the CMOS image sensor.

An electronic device includes: memory; a color filter array (CFA); an image sensor operatively connected to the CFA, the image sensor being configured to capture a plurality of images respectively having a plurality of measured spectral densities in a plurality of spectral bands; and a processor operatively connected to the at least one memory and the image sensor, wherein the at least one processor is configured to: measure a plurality of crosstalk values in a plurality of pixels and in a plurality of K channels of the plurality of images (the K represents a number of pixels per a color of the CFA), estimate a plurality of spectral-crosstalk values by applying an estimation function to the plurality of crosstalk values, and control to store, in at least one of the memory, the image sensor, or the processor, the estimated plurality of spectral-crosstalk values.

Disclosed is an imaging system with an image sensor and processor(s). The image sensor has a plurality of photo-sensitive cells arranged on a photo-sensitive surface of the image sensor; a colour filter array with colour filters of at least three different colours; and a polarisation mask with polarisation filters arranged on an optical path of at most a first predefined percent of the colour filters. The processor(s) is / are configured to: read out image data from the image sensor; and process the image data to generate at least one of: a full-resolution colour image, a full-resolution polarisation image, a high-dynamic range (HDR) image.

An electrophoretic display device includes a pixel structure and a color filter array. In the pixel structure, an area of a blue pixel electrode is less than an area of a red pixel electrode, and the area of the blue pixel electrode is less than an area of a green pixel electrode. In the color filter array, areas of red, green, and blue filter units are all substantially the same and the red, green, and blue filter units are overlapped with the red, green, and blue pixel electrodes respectively. A ratio of the area of the red filter unit to the area of the red pixel electrode is RFF; a ratio of the area of the green filter unit to the area of the green pixel electrode is GFF; a ratio of the area of the blue filter unit to the area of the blue pixel electrode is BFF, and BFF>RFF≥GFF.

An image sensor includes a pixel array and a color filter array covering the pixel array, where the color filter array includes a plurality of color filter elements, the plurality of color filter elements include at least one first color filter element and at least one second color filter element, each first color filter element includes a basic color filter and an extended color filter, and each second color filter element includes a plurality of basic color filters. A color of the extended color filter is different from a color of the basic color filter. An optical signal passing through the basic color filter is at least for imaging, and an optical signal passing through the extended color filter is for spectral measurement.

An image sensor has photo-sensitive cells arranged on a photo-sensitive surface; and a colour filter array with first type(s) of colour filters, second type(s) of colour filters, third type(s) of colour filters, and fourth type(s) of colour filters. Information indicative of a gaze direction is obtained. A gaze region and a peripheral region in the photo-sensitive surface are determined. Image data from the image sensor is read out, wherein when reading out, processor(s) is / are configured to: selectively skip reading out the image data from those photo-sensitive cells in the gaze region that have the fourth type(s) of colour filters; and selectively read out the image data from those photo-sensitive cells in the peripheral region that have the fourth type(s) of colour filters. The image data is processed to generate an image.

Near infrared imaging is highly complementary to color imaging having a wide range of applications. For example, in health applications, the near infrared can provide biomolecular information on tissue that is not apparent under visual examination nor from the inspection of color images of tissue. Thus, there is utility in viewing both visible color and near infrared images in combination. Described herein are methods to perform visible and near infrared imaging as well as hybrid visible color and near infrared imaging with a single conventional color filter array RGB sensor. The methods automatically provide spatially co-registered color and near infrared images and the methods can be used as the basis for a multispectral or hyperspectral imaging system.

Image data from an image sensor is read out, wherein when reading out, processor(s) is / are configured to employ subsampling by: reading out the image data from photo-sensitive cells that correspond to a first set of lines in a colour filter array (CFA), wherein a given line in the first set has colour filters of each of at least three different colours, the given line being a row (R1-R8) or a column (C1-C8) of the CFA; and skipping read out from photo-sensitive cells that correspond to a second set of lines in the CFA, wherein the first set of lines has one of: odd lines in the CFA, even lines in the CFA, while the second set of lines has another of: the odd lines, the even lines. The image data is processed to generate an image.

Image data from an image sensor is read out, wherein when reading out, processor(s) is / are configured to employ subsampling. The image data is processed, using neural network(s), to generate an image.

An imaging system has an image sensor chip and processor(s). The image sensor chip has a photo-sensitive surface with photo-sensitive cells; a colour filter array with physical smallest repeating units, wherein a given physical smallest repeating unit has array(s) of a first type of colour filters, array(s) of a second type of colour filters, and array(s) of a third type of colour filters; and a controller configured to employ neural network(s) during read out of image data. The processor(s) is / are configured to: receive output image data, wherein a smallest repeating unit in a colour pattern of at least a part of the output image data is different from the given physical smallest repeating unit; and generate an output image.

There is provided an image sensor including a pixel array having a color filter array including a minimum repeating unit, where the minimum repeating unit is composed of 4 * 4 pixels, including two red pixels, four green pixels, two blue pixels, and eight transparent pixels. When the transparent pixels are saturated and overflow, the blue pixel is affected by three or two transparent pixels, rather than four transparent pixels.

A color electro-optic display includes a layer of electro-optic material having a light-transmissive electrode on a viewing side, an array of pixel electrodes on an opposite side, and a color filter array (CFA) on the viewing side. The pixel electrodes drive selected portions of the electro-optic material between white and black optical states. The CFA includes an array of pixels, each of which has at least three color filter elements. Each color filter element is aligned with a different one of the pixel electrodes such that the color of any color filter element is visible when the adjacent portion of the electro-optic material is driven to the white optical state, and not visible when driven to the black optical state. The colors of the color filter elements have the same lightness or a lightness difference no greater than 10L* to substantially eliminate visible CFA texture patterns in displayed images.

A method includes obtaining a ground truth image and generating multiple image frames using the ground truth image, a modeled optical blur, and a modeled global motion. The method also includes generating multiple mosaic image frames using the image frames and a color filter array and generating multiple raw input image frames using the mosaic image frames and a noise model associated with at least one imaging sensor. The method further includes providing the raw input image frames to a multi-frame processing pipeline in order to generate synthetic training data. In addition, the method includes training a machine learning-based image processing engine using the ground truth image and the synthetic training data.

The color filter array includes multiple first color resist, multiple second color resists, and second color resists third color resists. The first color resist have a first color. The second color resists have a second color different from the first color. The third color resists have a third color different from the first color and second color. A reflectance of the third color resists is greater than a reflectance of the first color resists and a reflectance of the second color resists, the first color resists are continuously arranged along a first diagonal direction and a second diagonal direction, and the third color resists are not arranged along the second diagonal direction continuously.

An aspect of the present disclosure provides an information processing apparatus, an information processing system, an information processing method, and an information processing program which can suppress a decrease in a recognition rate of recognition processing even in a case where recognition processing is performed using data of a partial region of image data.An information processing apparatus includes a reading unit that sets a readout pixel as a part of a pixel region in which a plurality of pixels is arranged in a two-dimensional array, and controls reading out of a pixel signal from the pixel included in the pixel region; and a setting unit that sets the readout pixel on the basis of color filter array information of the pixel region.

The invention relates to a method for providing a color image based on color data from a sensor with a color filter array. The invention further relates to a computer program, a device, and a storage medium for this purpose.

The invention discloses a CMOS (complementary metal oxide semiconductor) blood oxygen sensing system and a working time sequence control method, and belongs to the technical field of biomedical sensing and semiconductor photoelectric integration. According to the system, a photoelectric detector array, a column-level analog-to-digital converter array, a multiplexer and a low-voltage differential signal transmission unit are integrated through a CMOS (Complementary Metal Oxide Semiconductor) process, and efficient separation and synchronous processing of multi-wavelength optical signals are realized in combination with a color filter array covering red light and infrared light. In the working process, the mixed light source emits visible light and near-infrared light, the visible light and the near-infrared light are separated through the optical filter and then converted into current signals through the photoelectric detector, the current signals are amplified into voltage signals through the capacitance negative feedback transconductance amplifier, the voltage signals are synchronously digitalized through the column-level ADC, and the voltage signals are transmitted to an external processor through the LVDS at the rate not lower than 1 Gbps to calculate the blood oxygen saturation degree. According to the invention, a full-digital signal link is adopted, the power consumption is obviously reduced, the anti-interference capability and the detection precision are improved, reflection-type and transmission-type dual-mode detection is supported, and wearable equipment and clinical scenes are adapted.

An electronic device according to an embodiment may include: a display and a camera module including at least one camera disposed under the display and configured to obtain an image of light having passed through the display wherein the camera module may include a first image sensor including monochrome pixels in a first grid pattern and a second image sensor including a color filter array including a plurality of color filters in a second grid pattern, and the second grid pattern may form a specified angle with the first grid pattern.

The present disclosure relates to an image sensor having a shifted color filter array pattern and bit line pairs. An imaging device includes a grouping of photodiodes having four photodiodes. Transfer transistors are between each photodiode and a floating diffusion region. Each floating diffusion region is coupled to at most two photodiodes of each grouping at a certain time through the transfer transistors. Buffer transistors are coupled to each floating diffusion region. The buffer transistors can be in a first or second grouping of buffer transistors. At a certain time, a first bit line is coupled to at most two buffer transistors of the first grouping and a second bit line is coupled to at most two buffer transistors of the second grouping. A color filter array of a plurality of groupings containing color filters is disposed on corresponding photodiodes of a photodiode array, wherein each grouping of color filters includes four color filters having the same color, and wherein each grouping of color filters overlaps two groupings of photodiodes.

An image sensor includes a pixel division structure, a light sensing element, a planarization layer, a color filter array layer, and a microlens. The pixel division structure extends through a substrate in a vertical direction, and defines unit pixel regions where unit pixels are formed. The light sensing element is in each unit pixel region. The planarization layer is on the substrate. The color filter array layer including color filters is on the planarization layer. The microlens is on the color filter array layer. The pixel division structure includes a core extending in the vertical direction and a lateral pattern structure on a sidewall thereof. The lateral pattern structure includes a first lateral pattern on a sidewall of a lower portion of the core, an air spacer on the first lateral pattern, and a second lateral pattern on outer sidewalls of the first lateral pattern and the air spacer.

To provide a microscope and an operation method of the same which can achieve fluorescent observation of an eye to be examined, without a specific filter.SOLUTION: A microscope comprises: a color filter array 37 which is arranged on imaging systems 30R, 30L, and through which return light LA passes; a movement mechanism 14 for moving an illumination system 20 and imaging systems 30R, 30L for scanning an eye E to be examined by illumination light (slit light LS); an imaging control part 118 which causes imaging elements 34R, 34L to image the return light LA for each of multiple scanning positions of the illumination light to the eye E to be examined, when the scanning is being executed; and an image generation part (image acquisition part 120, fluorescent image generation part 122) for generating a three-dimensional fluorescent image 140 of the eye E to be examined based on a fluorescent imaging signal for each scanning position, when an imaging signal obtained by imaging by the imaging element 34R, 34L, the return light LA passed through a specific color filter (color filter 37G) which transmits fluorescence FL at the highest level, is the fluorescent imaging signal.SELECTED DRAWING: Figure 9

An image processing method is provided. The image processing method is applied to an image signal processor. The image processing method includes the stages detailed in the following paragraph. Binned-Bayer raw data and binned-white raw data are received from an image sensor with an RGBW color filter array. The binned-Bayer raw data include information of red, green, and blue channels for a plurality of pixels. The binned-white raw data include luminance information for the pixels. The pixels are rendered based on both the binned-Bayer raw data and the binned-white raw data.

An electronic device includes: memory; a color filter array (CFA); an image sensor operatively connected to the CFA, the image sensor being configured to capture a plurality of images respectively having a plurality of measured spectral densities in a plurality of spectral bands; and a processor operatively connected to the at least one memory and the image sensor, wherein the at least one processor is configured to: measure a plurality of crosstalk values in a plurality of pixels and in a plurality of K channels of the plurality of images (the K represents a number of pixels per a color of the CFA), estimate a plurality of spectral-crosstalk values by applying an estimation function to the plurality of crosstalk values, and control to store, in at least one of the memory, the image sensor, or the processor, the estimated plurality of spectral-crosstalk values.

The invention provides an image sensor and an image processing method and device. The image sensor comprises a color filter array (CFA), and the CFA comprises a first pixel, a second pixel, a third pixel and a W pixel; wherein a first light splitting structure is arranged on the surface of the first pixel, a second light splitting structure is arranged on the surface of the second pixel, and a third light splitting structure is arranged on the surface of the third pixel; the first light splitting structure is used for splitting a first light signal which is not received by the first pixel to W pixels adjacent to the first pixel; the second light splitting structure is used for splitting a second light signal which is not received by the second pixel to a W pixel adjacent to the second pixel; and the third light splitting structure is used for splitting a third light signal which is not received by the third pixel to a W pixel adjacent to the third pixel. According to the invention, the light incoming amount of pixels can be increased, and the purpose of improving the imaging quality in a low-illumination environment is achieved.

A processor-implemented method includes obtaining a color filter array (CFA) input image, obtaining pattern information corresponding to a CFA, preprocessing the input image based on the pattern information, generating an inferred image by inputting the preprocessed input image to an artificial neural network (ANN) model, and generating an output image by selecting a pixel value, for each pixel, from one of the preprocessed input image and the inferred image, based on the pattern information.

A color electro-optic display includes a layer of electro-optic material having a light-transmissive electrode on a viewing side, an array of pixel electrodes on an opposite side, and a color filter array (CFA) on the viewing side. The pixel electrodes drive selected portions of the electro-optic material between white and black optical states. The CFA includes an array of pixels, each of which has at least three color filter elements. Each color filter element is aligned with a different one of the pixel electrodes such that the color of any color filter element is visible when the adjacent portion of the electro-optic material is driven to the white optical state, and not visible when driven to the black optical state. The colors of the color filter elements have the same lightness or a lightness difference no greater than 10 L* to substantially eliminate visible CFA texture patterns in displayed images.