Patent classifications
H04N5/341
Image sensor, signal processing device, signal processing method, and electronic device
[Object] To execute online calibration without using a light source. [Solution] An image sensor includes: a pixel array portion in which a plurality of pixels are disposed and which generates a pixel signal; a reference signal generation unit configured to generate a reference signal for calibration; an analog digital (AD) conversion unit configured to execute AD conversion on the pixel signal and the reference signal to generate pixel data and reference data; and a correction processing unit configured to correct the pixel data on a basis of the reference data. The present technology can be applied to, for example, an image sensor performing online calibration.
Generating virtual reality content based on corrections to stitching errors
Illustrative methods and systems for generating virtual reality content based on corrections to stitching errors are described. An illustrative computer-implemented method includes receiving raw virtual reality video data representing images recorded by camera modules of a camera array, using a stitching algorithm to stitch the images together to generate an initial virtual reality render, determining that the initial virtual reality render has a stitching error, determining a correction for the stitching error, and modifying the stitching algorithm based on the correction for the stitching error. The modified stitching algorithm may be used to generate a corrected virtual reality render that corrects the stitching error.
Imaging device, method thereof, and imaging element
The present technology relates to an imaging device, a method thereof, and an imaging element capable of controlling resolution of a detection image. Provided is a plurality of pixel output units that receives incident light incident without intervention of either an imaging lens or a pinhole and each outputs one detection signal indicating an output pixel value modulated by an incident angle of the incident light, and a signal processing unit provided so as to be associated with an area in which at least two pixel output units out of the plurality of pixel output units are formed that processes signals read out from the pixel output units formed in the area and obtains output pixel values. The present disclosure may be applied to, for example, an imaging element, an imaging device, an image processing device, an electronic device, a system and the like.
Solid-state imaging device and electronic device
A solid-state imaging device including an imager that acquires image data, a processing unit that performs a process based on a neural network calculation model for data based on the image data acquired from the imager, and a control unit that switches between a first process mode of performing a first process at a first frame rate and, based on a result of the first process, a second process mode of performing a second process at a second frame rate.
IMAGING DEVICE
An imaging device includes a light source operated by an optical control signal generated using a first reference signal having a first frequency and a second reference signal, having a second frequency different from the first frequency, a plurality of pixels, each of the plurality of pixels including a pixel circuit outputting a pixel signal corresponding to the electrical charge of a photodiode, and a logic circuit configured to generate raw data to generate a depth image, using the pixel signal. The plurality of pixels include first pixels and second pixels, and the logic circuit inputs a first photo control signal, having the first frequency, to the pixel circuit connected to a photodiode in each of the first pixels, and inputs a second photo control signal, having the second frequency, to the pixel circuit connected to a photodiode in each of the second pixels.
Endoscope apparatus for determining situation of occurrence of rolling distortion
When a first mode is set in an endoscope apparatus, a light source control unit causes a light source to be turned on during a period including all or a part of a period during which available storage periods of pixels in all simultaneous exposure lines. An imaging device generates a first image. When a second mode is set, the light source control unit causes the light source to be turned on during a period including all of the available storage period of the pixels in each of a plurality of rows. The imaging device generates a second image. The rolling distortion determination unit determines a situation of occurrence of rolling distortion using the first image and the second image.
Multiplexed Multichannel Photodetector
A light detection and ranging (LIDAR) system can emit light toward an environment and detect responsively reflected light to determine a distance to one or more points in the environment. The reflected light can be detected by a plurality of plurality of photodiodes that are reverse-biased using a high voltage. Signals from the plurality of reverse-biased photodiodes can be amplified by respective transistors and applied to an analog-to-digital converter (ADC). The signal from a particular photodiode can be applied to the ADC by biasing a respective transistor corresponding to the particular photodiode while not biasing transistors corresponding to other photodiodes. The gain of each photodiode/transistor pair can be controlled by adjusting the bias voltage applied to each photodiode using a digital-to-analog converter. The gain of each photodiode/transistor pair can be controlled based on the detected temperature of each photodiode.
Global shutter in pixel frame memory
In an image sensor, some pixels in an array contain a sampling circuit to sample the light intensity and a capacitor to store an analog value representing the intensity at that pixel. Alternatively, a group of pixel circuits will be equipped with such sampling and capacitor circuits. This allows simple redundancy-reducing computations with a relatively simple pixel architecture.
Imaging device, imaging system, and movable object
An imaging device includes a plurality of pixels arranged to form a plurality of rows and a plurality of columns and each including a photoelectric converter, an accumulation time controller that controls accumulation time of the plurality of pixels, and an amplifier that amplifies a signal based on charge generated by the photoelectric converter. The plurality of pixels are divided into a plurality of pixel blocks each including at least two of the plurality of pixels, the accumulation time controller is configured to control the accumulation time individually for the plurality of pixel blocks, and the amplifier is configured to output, for one pixel block of the plurality of blocks, a plurality of signals which are amplified at different gains and correspond to accumulation time of a common frame.
Image capturing device and method that control an exposure period of a photon-counting type of an image sensor
An image capturing device comprising: an image sensing element having a plurality of pixels each including a sensor that outputs a pulse signal in response to incident of a photon, and a counter that counts a number of the pulse signals; a readout unit that reads out count information from the counters; a control unit that controls the readout unit so as to read out the count information from the counters of at least a part of the plurality of the pixels at a predetermined timing during exposure of the pixels; and a determination unit that determines whether the read out count information satisfies a predetermined condition, wherein, in a case where the predetermined condition is satisfied, counting by the counters is stopped.