H04N23/741

RECEPTION APPARATUS AND TRANSMISSION APPARATUS
20230239570 · 2023-07-27 ·

Provided is a reception apparatus that includes an information processing section configured to generate an image at least either in a first mode for reading out a whole captured region or in a second mode for reading out a partial region in the captured region. At the time of readout in the second mode, the image processing section varies a readout rate depending on the region.

IMAGE CAPTURING APPARATUS, CONTROL METHOD THEREOF, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
20230007150 · 2023-01-05 ·

An image capturing apparatus which a lens unit is interchangeable, comprises an image capturing unit which captures images using an image sensor, an synthesizing unit which synthesizes a plurality of images, and a controlling unit which controls predetermined synthesis processing for creating a synthetic image by causing the synthesizing unit to synthesize a plurality of images that have been obtained by the image capturing unit performing image capturing a plurality of times, wherein, if it is judged that a lens unit that has been replaced after a first image for the synthesis processing was acquired is a lens unit having an image circle that is different from that of a lens unit that was mounted before the replacement, the controlling unit controls the image capturing unit to not capture a new image for creating the synthetic image.

PICTURE METADATA FOR HIGH DYNAMIC RANGE VIDEO
20230239579 · 2023-07-27 ·

Methods and systems for generating dynamic picture metadata are presented. Given an input picture generated on a mastering display, characteristics of a target display which is different than the mastering display, and an initial set of dynamic metadata for the input picture, an iterative algorithm: maps the input image to a mapped image for the target display according to a display management process and the image metadata, compares the input image to the mapped image according to a visual appearance-matching metric, and updates the image metadata using an optimization technique until a visibility difference value between the input image and the mapped image according to the visual appearance-matching metric is below a threshold.

PICTURE METADATA FOR HIGH DYNAMIC RANGE VIDEO
20230239579 · 2023-07-27 ·

Methods and systems for generating dynamic picture metadata are presented. Given an input picture generated on a mastering display, characteristics of a target display which is different than the mastering display, and an initial set of dynamic metadata for the input picture, an iterative algorithm: maps the input image to a mapped image for the target display according to a display management process and the image metadata, compares the input image to the mapped image according to a visual appearance-matching metric, and updates the image metadata using an optimization technique until a visibility difference value between the input image and the mapped image according to the visual appearance-matching metric is below a threshold.

EVENT-BASED COMPUTATIONAL PIXEL IMAGERS

A computational pixel imaging device that includes an array of pixel integrated circuits for event-based detection and imaging. Each pixel may include a digital counter that accumulates a digital number, which indicates whether a change is detected by the pixel. The counter may count in one direction for a portion of an exposure and count in an opposite direction for another portion of the exposure. The imaging device may be configured to collect and transmit key frames at a lower rate, and collect and transmit delta or event frames at a higher rate. The key frames may include a full image of a scene, captured by the pixel array. The delta frames may include sparse data, captured by pixels that have detected meaningful changes in received light intensity. High speed, low transmission bandwidth motion image video can be reconstructed using the key frames and the delta frames.

NOISE REMOVING CIRCUIT, IMAGE SENSING DEVICE AND OPERATION METHOD OF THE SAME
20230237624 · 2023-07-27 ·

A noise removing circuit includes an image combiner suitable for generating a high dynamic range (HDR) image by combining images having different exposure times; a detailed image generator suitable for generating a detailed image from the HDR image; an image strength evaluator suitable for evaluating strength of the detailed image; and a noise coring component suitable for performing a noise coring operation for removing noise from a region of the detailed image in which a signal to noise ratio (SNR) has decreased using a low threshold and a saturation threshold when the strength of the detailed image is less than a reference value.

NOISE REMOVING CIRCUIT, IMAGE SENSING DEVICE AND OPERATION METHOD OF THE SAME
20230237624 · 2023-07-27 ·

A noise removing circuit includes an image combiner suitable for generating a high dynamic range (HDR) image by combining images having different exposure times; a detailed image generator suitable for generating a detailed image from the HDR image; an image strength evaluator suitable for evaluating strength of the detailed image; and a noise coring component suitable for performing a noise coring operation for removing noise from a region of the detailed image in which a signal to noise ratio (SNR) has decreased using a low threshold and a saturation threshold when the strength of the detailed image is less than a reference value.

Intensity Separated Local White Balance Correction

Local automatic white balance (AWB) of wide dynamic range (WDR) images is provided. Methods and systems include collecting, by an image signal processor (ISP), statistics for local AWB from at least one wide dynamic range (WDR) image received by the ISP; generating, by a processor, based on the statistics, local gain lookup tables (LUTs), one for each color channel represented in the WDR image(s), each local gain LUT providing a correlation between gain and intensity; and storing the local gain LUTs. Further processing includes, for each of multiple pixels of a WDR image to be output calculating an intensity value, accessing the local gain LUT for the color channel corresponding to that pixel using the calculated intensity value to identify a corresponding local gain value, and applying the local gain value to that pixel.

Intensity Separated Local White Balance Correction

Local automatic white balance (AWB) of wide dynamic range (WDR) images is provided. Methods and systems include collecting, by an image signal processor (ISP), statistics for local AWB from at least one wide dynamic range (WDR) image received by the ISP; generating, by a processor, based on the statistics, local gain lookup tables (LUTs), one for each color channel represented in the WDR image(s), each local gain LUT providing a correlation between gain and intensity; and storing the local gain LUTs. Further processing includes, for each of multiple pixels of a WDR image to be output calculating an intensity value, accessing the local gain LUT for the color channel corresponding to that pixel using the calculated intensity value to identify a corresponding local gain value, and applying the local gain value to that pixel.

IMAGING CONTROL DEVICE, IMAGING CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM
20230007187 · 2023-01-05 ·

Image quality is to be improved. An imaging control device includes: an imaging data obtaining unit that obtains imaging data; a frame setting unit that sets a predetermined frame in the imaging data obtained by the imaging data obtaining unit; a luminance value obtaining unit that obtains luminance values of imaging data in a range of the frame set by the frame setting unit; a representative value calculating unit that calculates a representative value from the luminance values obtained by the luminance value obtaining unit; and a converting unit that performs gamma conversion of the imaging data obtained by the imaging data obtaining unit.