A method for retrieval of multi spectral bidirectional reflectance distribution function (BRDF) parameters by using red-green-blue-depth (RGB-D) data includes capturing, by an RGB-D camera, at least one image of one or more objects in a scene. The captured at least one image of the one or more objects includes RGB-D data including color and geometry information of the objects. A processing unit reconstructs the captured at least one image of the one or more objects to one or more 3D reconstructions by using the RGB-D data. A deep neural network classifies the BRDF of a surface of the one or more objects based on the 3D reconstructions. The deep neural network includes an input layer, an output layer, and at least one hidden layer between the input layer and the output layer. The multi spectral BRDF parameters are retrieved by approximating the classified BRDF by using an iterative optimization method.

An imaging device includes at least one unit pixel cell including a photoelectric converter and a voltage application circuit. The photoelectric converter includes a first electrode, a light-transmitting second electrode, a first photoelectric conversion layer containing a first material and a second photoelectric conversion layer containing a second material. The impedance of the first photoelectric conversion layer is larger than the impedance of the second photoelectric conversion layer. The voltage application circuit applies a first voltage or a second voltage having a larger absolute value than the first voltage selectively between the first electrode and the second electrode.

An imaging apparatus includes an imaging unit that captures an image of a subject and outputs imaging signals; an image signal generation unit that generates image signals indicative of images to be displayed in respective lines of a display unit based on the imaging signals, and outputs the generated image signals to the display unit; and a timing control unit that controls timings, in which the image signal generation unit outputs the image signals, based on an output completion signals indicative of lines corresponding to the image signals, which are completely output from the image signal generation unit to the display unit, and write completion signals indicative of lines corresponding to the image signals which are generated by the image signal generation unit.

An electronic device includes a camera configured to capture an image and generate an electrical image signal by photoelectrically converting incident light, and at least one processor configured to estimate a light source color temperature based on image data of the image signal, identify a target coordinate on a color space based on the light source color temperature, identify a capture coordinate on the color space based on the image, identify a chrominance allowable range based on the target coordinate, obtain a white balance evaluation value based on a first distance between the target coordinate and the chrominance allowable range and a second distance between the capture coordinate and the chrominance allowable range, and perform a white balance correction on the image based on the white balance evaluation value.

An image capturing apparatus includes an image sensor and a processor. The image sensor includes an imaging plane that receives an image of a shooting target field through color filters according to two or more wavelength regions and outputs a signal of the image of the shooting target field. The processor is configured to set a larger weight for a wavelength region having a higher image forming performance than for a wavelength region having a lower image forming performance in accordance with a high-resolution direction determined in the image of the shooting target field, generate image data based on the signal output by the image sensor, and detect an object in the generated image data.

The present disclosure provides a photoelectric conversion apparatus which includes a semiconductor substrate, signal output units disposed on the semiconductor substrate, a plurality of photoelectric conversion layers disposed on a surface of the substrate, and an upper electrode in this order. The photoelectric conversion apparatus further includes insulation layers which are disposed between the plurality of photoelectric conversion layers and which have lines connected to power supply units. The upper electrode and the lines are electrically connected to each other on side surfaces of the insulation layers.

A spectral camera for producing a spectral output is disclosed. The spectral camera has an objective lens for producing an image, an optical duplicator, an array of filters, and a sensor array arranged to detect the filtered image copies simultaneously on different parts of the sensor array. Further, a field stop defines an outline of the image copies projected on the sensor array. The filters are integrated on the sensor array, which has a planar structure without perpendicular physical barriers for preventing cross talk between each of the adjacent optical channels. The field stop enables adjacent image copies to fit together without gaps for such barriers. The integrated filters mean there is no parasitic cavity causing crosstalk between the adjacent image copies. This means there is no longer a need for barriers between adjacent projected image copies, and thus sensor area can be better utilized.

Provided is an exterior inspection device capable of performing inspections with an optimum white balance at all times. This exterior inspection device A is equipped with a camera 1, an inspection reference plane 2, and a light source 3, the exterior inspection device further comprising: a calibration reference plate 4; an advance/retraction mechanism 5 for advancing and retracting the calibration reference plate 4 between a calibration position within an image-taking area of the camera 1 and a retracted position retracted therefrom; and a control unit for issuing a white balance adjustment command to the camera 1 when the calibration reference plate 4 is at the calibration position. On an occasion of a non-inspection state in which no exterior inspection is being executed, the control unit 6 issues to the advance/retraction mechanism 5 a drive command for moving the calibration reference plate 4 to the calibration position, an adjustment command for adjusting light quantity of the light source 3, and a white balance adjustment command. Therefore, the white balance adjustment can be fulfilled automatically without involving human work.

Disclosed is an electronic apparatus comprising: a camera module; a communication module; and a processor electrically connected to the camera module and the communication module, wherein the processor is capable of: obtaining an image of one or more external objects by using the camera module; recognizing at least one specified external object among the one or more external objects; transmitting image color information, corresponding to said at least one recognized specified external object, to an external electronic apparatus via the communication module; receiving attribute information on a light source for the image, determined using reference color information, corresponding to said at least one specified external object, and the image color information, from the external electronic apparatus; and correcting the color temperature of the image by using the attribute information received from the external electronic apparatus. Other various embodiments identified in the description are possible.

In a pixel 110, a microlens layer 112 includes a microlens for each pixel region. A color filter layer 114 allows passage of light of a given color. A polarizer layer 116 includes a polarizer that allows passage of a polarization component in a given direction in some or all pixel regions and acquires a normal vector of a subject through a detection value thereof. A photoelectric conversion layer 118 includes a plurality of photodiodes in the pixel regions. A distance to a feature point of the subject is acquired through phase difference based on the detection value.