Patent classifications
H04N5/357
Correlated double sampling circuit and image sensor including the same
A flicker detection circuit is provided. The flicker detection circuit may include a flicker detection correlated double sampling (FD CDS) circuit including first to sixth switches turned on or off based on a control signal, and first to fourth capacitors, the FD CDS circuit being configured to receive a flicker pixel signal output from at least one pixel, summate with an output offset signal, and amplify the summation based on a gain to form a flicker detection signal; and an analog-to-digital converter (ADC) configured to quantize the flicker detection signal.
Image sensing device having a mirroring circuit suitable for compensating an operating current
Disclosed is an image sensing device including a current supply circuit coupled between a supply terminal of a first voltage and a pair of output terminals, an input circuit coupled between the pair of output terminals and a common node, and suitable for receiving a pixel signal and a ramp signal, and a mirroring circuit coupled between the common node and a supply terminal of a second voltage, and suitable for compensating for an operating current, which flows between the common node and the supply terminal of the second voltage, based on a reference current when generating the operating current by mirroring the reference current.
Pixel readout circuit and a method for imaging
A pixel readout circuit and a technique for imaging are disclosed. The circuit includes: an array of pixel integration circuits, each adapted for receiving an electric signal indicative of photocurrent of light sensitive pixel of a pixel matrix, integrate the electric signal over a frame period, and output the integrated signal at an imaging frame rate being one over the period; and an array of pixel derivation circuits, each includes a signal preprocessing channel for receiving a total electric signal indicative of at least a component of the photocurrent(s) of a cluster of respective light sensitive pixel(s); and a comparison unit adapted to analyze the total electric signal to determine digital data indicative of a change in the total electric signal relative to one or more thresholds; and a digital output utility adapted to readout of the digital data at a second rate different than the frame rate.
Image processing apparatus and image processing method to generate and display an image based on a vehicle movement
An image processing apparatus is provided. An image photographed by a camera that photographs the surroundings of the vehicle is received. An overhead image, a vehicle travel direction image, and a vehicle lateral side image corresponding to a vehicle movement direction which is either left or right of the vehicle is generated based on the image. The generated image is displayed on a display unit. For example, a display image is generated or updated in accordance with a travel direction of the vehicle and direction-of-rotation information of a steering wheel. In a case where the vehicle is backed counter-clockwise, the overhead image, the vehicle rear image, and a vehicle left side image are generated and displayed. In a case where the vehicle is backed clockwise, the overhead image, the vehicle rear image, and a vehicle right side image are generated and displayed.
Wide-angle stereoscopic vision with cameras having different parameters
A stereoscopic vision system uses at least two cameras having different parameters to image a scene and create stereoscopic views. The different parameters of the two cameras can be intrinsic or extrinsic, including, for example, the distortion profile of the lens in the cameras, the field of view of the lens, the orientation of the cameras, the positions of the cameras, the color spectrum of the cameras, the frame rate of the cameras, the exposure time of the cameras, the gain of the cameras, the aperture size of the lenses, or the like. An image processing apparatus is then used to process the images from the at least two different cameras to provide optimal stereoscopic vision to a display.
Image signal processor and image sensor including the image signal processor
An image signal processor and an image sensor including the same are disclosed. An image sensor includes a pixel array configured to convert received optical signals into electrical signals, a readout circuit configured to convert the electrical signals into image data and output the image data, and an image signal processor configured to perform deep learning-based image processing on the image data based on training data selected from among first training data and second training data based on a noise level of the image data.
Solid-state imaging device and imaging device
Improvement of noise characteristics is achievable. A solid-state imaging device according to an embodiment includes a plurality of photoelectric conversion elements (333) arranged in a two-dimensional grid shape in a matrix direction and each generating a charge corresponding to a received light amount, and a detection unit (400) that detects a photocurrent produced by the charge generated in each of the plurality of photoelectric conversion elements. A chip (201a) on which the photoelectric conversion elements are disposed and a chip (201b) on which at least a part of the detection unit is disposed are different from each other.
IMAGING ELEMENT AND IMAGING DEVICE
An imaging element includes a first substrate that is provided with a photoelectric conversion unit which generates an electric charge by photoelectric conversion, a signal line to which a signal based on the electric charge generated by the photoelectric conversion unit is output, and a supply unit which supplies a voltage to the signal line such that a voltage of the signal line does not fall below a predetermined voltage, and a second substrate that is provided with a processing unit which processes the signal output to the signal line and is stacked on the first substrate.
IMAGING ELEMENT AND IMAGING APPARATUS
To make it possible to reduce power consumption in a charge pump that supplies driving power to a pixel array. An imaging element (4) according to an embodiment includes: an imaging unit (100) in which pixels (10) including a light receiving element are arrayed, a drive unit (112) that generates a drive signal for driving the pixels, a charge pump circuit (122) that generates electric power for driving the drive unit, and a control unit (120) that controls, according to operation of the imaging unit, a driving capability of the charge pump circuit to drive the drive unit.
IMAGING APPARATUS AND METHOD
Provided are an imaging apparatus and a method capable of capturing a high-quality multi spectral image. The imaging apparatus includes: an optical system that has three or more aperture regions at a pupil position or near the pupil position, each of the aperture regions being provided with a different combination of a polarizing filter and a bandpass filter such that the aperture region transmits light having a combination of a different polarization angle and a different wavelength range; an image sensor in which three or more types of pixels that receive light having different polarization angles are arranged two-dimensionally; and a processor that performs interference removal processing on a signal output from the image sensor and generates an image signal for each of the aperture regions. In a case where the optical system has three or more types of the polarizing filters and the polarizing filters are arranged in an order of the polarization angles, at least one of differences in the polarization angles of the adjacent polarizing filters is different from the others.