公开(公告)号：US20240397211A1

公开(公告)日：2024-11-28

申请号：US18323173

申请日：2023-05-24

Applicant: OmniVision Technologies, Inc.

Inventor： Yiyi Ren ,  Wenshou Chen ,  Lei Fan ,  Nian Xiong

IPC: H04N23/84 ,  H04N25/704

Abstract: An imaging system comprising a phase-detection image sensor comprising a plurality of phase-detection pixel units and a processor configured to: interpolate a green image to obtain a full resolution interpolated green image including defocused portions having artifacts and in-focus portions having sharp image, low-pass filter the full resolution interpolated green image to obtain a blurred image of the interpolated green image, combine the full resolution interpolated green image and the blurred image of the full resolution interpolated green image to obtain a corrected full resolution interpolated green image, where the artifacts of the defocused portions of the full resolution interpolated green image are removed, and the sharp image of the in-focus portions of the full resolution interpolated green image is unaffected.

公开(公告)号：US20240422444A1

公开(公告)日：2024-12-19

申请号：US18336099

申请日：2023-06-16

Applicant: OmniVision Technologies, Inc.

Inventor： Yiyi Ren ,  Lei Fan ,  Wenshou Chen

IPC: H04N23/84 ,  H04N25/10

Abstract: A method for full interpolating green pixels from an input image having a first minimum repeating unit comprising 4×4 pixels, where 2×2 pixels of same color are grouped together, comprises down sampling of the input image to a first down sampled image, down sampling of the input image to a second down sampled image, and interpolating green pixels resulting in an interpolated green down sampled image, where the interpolating uses jointly the first down sampled image and the second down sampled image. The interpolated green pixels in an interpolated green down sampled image are further up sampled resulting in a full interpolated green image.

公开(公告)号：US12279050B2

公开(公告)日：2025-04-15

申请号：US18323173

申请日：2023-05-24

Applicant: OmniVision Technologies, Inc.

Inventor： Yiyi Ren ,  Wenshou Chen ,  Lei Fan ,  Nian Xiong

IPC: H04N23/84 ,  H04N25/704

Abstract: An imaging system comprising a phase-detection image sensor comprising a plurality of phase-detection pixel units and a processor configured to: interpolate a green image to obtain a full resolution interpolated green image including defocused portions having artifacts and in-focus portions having sharp image, low-pass filter the full resolution interpolated green image to obtain a blurred image of the interpolated green image, combine the full resolution interpolated green image and the blurred image of the full resolution interpolated green image to obtain a corrected full resolution interpolated green image, where the artifacts of the defocused portions of the full resolution interpolated green image are removed, and the sharp image of the in-focus portions of the full resolution interpolated green image is unaffected.