IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND STORAGE MEDIUM

    公开(公告)号:US20240292108A1

    公开(公告)日:2024-08-29

    申请号:US18443556

    申请日:2024-02-16

    IPC分类号: H04N23/73 H04N23/60 H04N25/79

    摘要: An image capturing apparatus comprises a photoelectric conversion element configured to include an avalanche photodiode, a voltage control that controls the reverse bias voltage applied to the avalanche photodiode, and an exposure control that controls the exposure period of the photoelectric conversion element, wherein voltage control is configured to perform a change of the reverse bias voltage during a predetermined period other than the exposure periods in two consecutive frame periods, wherein the predetermined period is set by changing a blank period within two consecutive frame periods.

    Method for Generating a High Dynamic Range Image

    公开(公告)号:US20240289925A1

    公开(公告)日:2024-08-29

    申请号:US18585275

    申请日:2024-02-23

    摘要: A method includes obtaining a short exposure color-infrared (color-IR) image captured with an activated infrared (IR) illuminator and a long exposure color-IR image captured with a deactivated IR illuminator. The short exposure color-IR image is captured with a shorter exposure time than the long exposure color-IR image. The method includes determining an IR light impact of the of the short exposure color-IR image and of the long exposure color-IR image. The method includes mitigating the IR light impact in the short exposure color-IR image to obtain a short exposure IR-suppressed color image. The method includes mitigating the IR light impact in the long exposure color-IR image to obtain a long exposure IR-suppressed color image. The method includes merging the short exposure IR-suppressed color image with the long exposure IR-suppressed color image to obtain a merged HDR image.

    OBSERVATION DEVICE, OBSERVATION SYSTEM, AND METHOD FOR CONTROLLING OBSERVATION DEVICE

    公开(公告)号:US20240259692A1

    公开(公告)日:2024-08-01

    申请号:US18419685

    申请日:2024-01-23

    摘要: An observation device includes: an illumination system that is disposed on a downward side of a sample and emits illumination light from the downward side toward an upward side of the sample; an imaging system that is disposed on the downward side and images the sample with transmitted light that is reflected on the upward side in the illumination light emitted from the illumination system and is transmitted through the sample from the upward side to the downward side; and a control unit that executes imaging control using the illumination system and the imaging system. The control unit controls an exposure amount in correspondence with required time for the imaging control which includes required operation time and required pause time determined based on imaging conditions.

    Optical sensor which can reduce image flicker

    公开(公告)号:US12047687B2

    公开(公告)日:2024-07-23

    申请号:US17889366

    申请日:2022-08-16

    发明人: Chih-Huan Wu

    摘要: An optical sensor, for sensing a sensing frame corresponding to a flicker period of ambient light, comprising: a pixel array, configured to perform N times of exposure operations via at least one pixel of the pixel array in N exposure time intervals to generate N sub-frames, wherein a summation of the N exposure time intervals equals to a sensing interval and the sensing interval is less than or identical to a first flicker period. The optical sensor adds the N sub-frames to generate a summing sub-frame. The sensing frame comprises the summing sub-frame. The adding operation can also be performed to digital signals generated from the sub-frames. The influences caused by the fluctuation of ambient light can be neutralized, since the frame or portion of the frame is sensed at least twice at different phases of a single flicked period. By this way, the conventional flicker issue can be improved.