公开(公告)号：US12267597B2

公开(公告)日：2025-04-01

申请号：US18118142

申请日：2023-03-07

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Hsun-Chia Hsu ,  I-Hsien Lee

IPC: H04N23/741 ,  G06T5/50 ,  H04N25/59

Abstract: An image signal amplifying circuit comprising an amplifier and a gain control circuit. The amplifier respectively amplifies a first image signal and a second image signal, which are generated by a pixel array of an image sensor, by a first analog gain and a second analog gain, wherein each one of pixel circuits of the pixel array comprises a first capacitor for generating the first image signal and a second capacitor for generating the second image signal, wherein a charge storage capacity of the first capacitor is smaller than a charge storage capacity of the second capacitor. The gain control circuit selectively adjusts the first analog gain or the second analog gain. Each one of the pixel circuits has a first conversion gain corresponding to the first capacitor and a second conversion gain corresponding to the second capacitor.

公开(公告)号：US11812165B2

公开(公告)日：2023-11-07

申请号：US17491548

申请日：2021-10-01

Applicant: MEDIATEK INC.

Inventor： Ying-Jui Chen ,  Jing-Ying Chang ,  Keh-Tsong Li ,  Tai-Hsiang Huang ,  I-Hsien Lee

IPC: H04N23/951 ,  H04N23/65 ,  H04N23/667

CPC classification number: H04N23/951 ,  H04N23/651 ,  H04N23/667

Abstract: A video capture method includes: controlling an image sensor to capture a plurality of first sensor output frames at a first frame rate during a first period; during the first period, checking if a motion blur condition is met; in response to the motion blur condition being met during the first period, controlling the image sensor to capture a plurality of second sensor output frames at a second frame rate during a second period following the first period, wherein the second frame rate is higher than the first frame rate; and processing consecutive sensor output frames captured by the image sensor during the first period and the second period, to generate a plurality of output frames.

公开(公告)号：US20220408017A1

公开(公告)日：2022-12-22

申请号：US17491548

申请日：2021-10-01

Applicant: MEDIATEK INC.

Inventor： Ying-Jui Chen ,  Jing-Ying Chang ,  Keh-Tsong Li ,  Tai-Hsiang Huang ,  I-Hsien Lee

IPC: H04N5/232

Abstract: A video capture method includes: controlling an image sensor to capture a plurality of first sensor output frames at a first frame rate during a first period; during the first period, checking if a motion blur condition is met; in response to the motion blur condition being met during the first period, controlling the image sensor to capture a plurality of second sensor output frames at a second frame rate during a second period following the first period, wherein the second frame rate is higher than the first frame rate; and processing consecutive sensor output frames captured by the image sensor during the first period and the second period, to generate a plurality of output frames.

公开(公告)号：US20210176385A1

公开(公告)日：2021-06-10

申请号：US16708790

申请日：2019-12-10

Applicant: MediaTek Inc.

Inventor： I-Hsien Lee

IPC: H04N5/225 ,  G06T7/593 ,  G06T7/521 ,  G06T7/80

Abstract: Various examples with respect to camera configuration for active stereo without image quality degradation are described. A first sensor and a second sensor are controlled to capture images of a scene. The first sensor is configured to sense light in a first spectrum. The second sensor is configured to sense light in both the first spectrum and a second spectrum different from the first spectrum. Depth information about the scene is then extracted from the images captured by the first sensor and the second sensor.

公开(公告)号：US20230300471A1

公开(公告)日：2023-09-21

申请号：US18118142

申请日：2023-03-07

Applicant: MEDIATEK INC.

Inventor： Chi-Cheng Ju ,  Hsun-Chia Hsu ,  I-Hsien Lee

IPC: H04N23/741 ,  H04N25/59 ,  G06T5/50

CPC classification number: H04N23/741 ,  H04N25/59 ,  G06T5/50 ,  G06T2207/20221 ,  G06T2207/20208

Abstract: An image signal amplifying circuit comprising an amplifier and a gain control circuit. The amplifier respectively amplifies a first image signal and a second image signal, which are generated by a pixel array of an image sensor, by a first analog gain and a second analog gain, wherein each one of pixel circuits of the pixel array comprises a first capacitor for generating the first image signal and a second capacitor for generating the second image signal, wherein a charge storage capacity of the first capacitor is smaller than a charge storage capacity of the second capacitor. The gain control circuit selectively adjusts the first analog gain or the second analog gain. Each one of the pixel circuits has a first conversion gain corresponding to the first capacitor and a second conversion gain corresponding to the second capacitor.