An imaging apparatus includes: a light reception unit that receives a light emission signal from a transmission apparatus via a pixel; a detection unit that detects whether or not an output based on the light emission signal received by the light reception unit is a first threshold value or more; and a correction unit that corrects a luminance of the pixel when the output based on the light emission signal is the first threshold value or more based on a result detected by the detection unit.

An image processing device includes a vision sensor and a processor. The vision sensor generates a plurality of events in which an intensity of light changes and generates a plurality of timestamps depending on times when the events occur. In addition, the processor may regenerate a timestamp of a pixel where an abnormal event occurs, based on temporal correlation of the events.

The disclosure describes the use of image sensors in a variety of different imaging applications. In some implementations, the pixels of an image sensor may be configured (e.g., programmed) with one or more analog filters to sense a variety of things, including, for example: average intensity and color (like a standard camera), 3D depth (like a time of flight or structured light camera), changes and/or motion in an image (like an event based camera), spectral reflectance (like a spectroscopy camera), and many other features of an imaged scene or object. In alternative implementations, digital filtering may be applied to the output of an image sensor to realize one of these applications.

An image processing device derives an edge component value of a pixel of interest by performing an edge detection process using a brightness of the pixel of interest and brightnesses of peripheral pixels of the pixel of interest of image information including the brightness and a color difference of each pixel, derives an average of the color differences of the pixel of interest and the peripheral pixels, derives a median of the color differences of the pixel of interest and the peripheral pixels, and selects one of the average and the median as the color difference of the pixel of interest by using the edge component value, the average, and the median.

An image processing device derives an edge component value of a pixel of interest by performing an edge detection process using a brightness of the pixel of interest and brightnesses of peripheral pixels of the pixel of interest of image information including the brightness and a color difference of each pixel, derives an average of the color differences of the pixel of interest and the peripheral pixels, derives a median of the color differences of the pixel of interest and the peripheral pixels, and selects one of the average and the median as the color difference of the pixel of interest by using the edge component value, the average, and the median.

Aspects of the present disclosure are directed to apparatuses, systems and methods involving imaging providing pixel intensity ratios using circuitry. According to an example embodiment, an apparatus includes a photosensor array having an array of sensors and a circuitry. Each sensor of the photosensor array provides a signal value for a pixel that is indicative of an intensity of light detected. Further, the circuitry responds to the signal values from a plurality of sensors of the photosensor array, by converting signals indicative of a ratio of pixel intensity values to a digital signal that characterize at least an edge of an object corresponding to or associated with the intensity of the detected light. The circuitry provides digital signals, each indicative of a ratio of pixel intensity values, for respective sensors of the photosensor array.

An apparatus includes a hardware sensor array including a plurality of pixels arranged along at least a first dimension and a second dimension of the array, each of the pixels capable of generating a sensor reading. A hardware scanning window array includes a plurality of storage elements arranged along at least a first dimension and a second dimension of the hardware scanning window array, each of the storage elements capable of storing a pixel value based on one or more sensor readings. Peripheral circuitry for systematically transfers pixel values, based on sensor readings, into the hardware scanning window array, to cause different windows of pixel values to be stored in the hardware scanning window array at different times. Control logic coupled to the hardware sensor array, the hardware scanning window array, and the peripheral circuitry, provides control signals to the peripheral circuitry to control the transfer of pixel values.

An image sensor pixel noise measurement circuit includes a pixel array on an integrated circuit chip. The pixel array includes a plurality of pixels including a first pixel to output a first image data signal, and a second pixel to output a second image data signal. A noise amplification circuit on the integrated circuit chip is coupled to receive the first and second image data signals from the pixel array. The noise amplification circuit is coupled to output an amplified differential noise signal in response to the first and second image data signals received from the pixel array. A fast Fourier transform (FFT) analysis circuit on the integrated circuit chip is coupled to transform the amplified differential noise signal output by the noise amplification circuit from a time domain to a frequency domain to analyze a pixel noise characteristic of the pixel array.

The invention relates to an electronic device for analyzing a scene, including a plurality of pixels (101) connected to a readout circuit (103) by a same first conductive track (105), wherein: each pixel (101) is capable of detecting an occurrence of a first event characteristic of the scene and of transmitting an event indication signal on the first conductive track (105) when it detects an occurrence of the first event; and the readout circuit (103) is capable of reading from the first conductive track (105) the event indication signals transmitted by the pixels (101) and of deducing therefrom characteristics of the scene, without transmitting event acknowledgement signals to the pixels (101).

An apparatus includes a hardware sensor array including a plurality of pixels arranged along at least a first dimension and a second dimension of the array, each of the pixels capable of generating a sensor reading. A hardware scanning window array includes a plurality of storage elements arranged along at least a first dimension and a second dimension of the hardware scanning window array, each of the storage elements capable of storing a pixel value based on one or more sensor readings. Peripheral circuitry for systematically transfers pixel values, based on sensor readings, into the hardware scanning window array, to cause different windows of pixel values to be stored in the hardware scanning window array at different times. Control logic coupled to the hardware sensor array, the hardware scanning window array, and the peripheral circuitry, provides control signals to the peripheral circuitry to control the transfer of pixel values.