公开(公告)号：US11579474B2

公开(公告)日：2023-02-14

申请号：US17255438

申请日：2020-05-26

Applicant: BOE Technology Group Co., Ltd. ,  University of Electronic Science and Technology of China

Inventor： Xiaoxi Chen ,  Junrui Zhang ,  Mao Ye ,  Xuehui Zhu ,  Zhidong Wang ,  Pengwei Li ,  Lijia Zhou

IPC: G02F1/133 ,  G02F1/01 ,  G02F1/139 ,  G02F1/29 ,  H04N5/232

Abstract: Provided are a polarization imaging apparatus, a polarization imaging method, a controller and a computer readable storage medium. The polarization imaging apparatus includes an optical rotation device, a lens device, an image sensor, an image processor, and a controller which are sequentially arranged along a ray direction of incident light. The controller is configured to control the optical rotation device to be in a first optical rotation state or a second optical rotation state, control the lens device to be in an in-focus state or an out-of-focus state, and control the image sensor to collect light passing through the optical rotation device and the lens device to obtain multiple images. The image processor is configured to obtain polarized image information according to the multiple images.

公开(公告)号：US20210185318A1

公开(公告)日：2021-06-17

申请号：US17117142

申请日：2020-12-10

Applicant: University of Electronic Science and Technology of China

Inventor： Ce Zhu ,  Hongwei Guo ,  Yuyang Liu ,  Mao Ye

IPC: H04N19/124 ,  H04N19/177 ,  H04N19/147 ,  H04N19/52

Abstract: A method for optimizing a second coding is provided. The method includes: Setting a quantization parameter of a start frame of a video sequence according to a range of an input quantization parameter QP0 of a coder; performing first coding with a simplified method, and calculating a frame-level temporal impact factor ki of a current frame and a block-level temporal impact factor kB,j of all 16×16 pixel blocks in the current frame; restoring reference list information of the coder after the first coding is completed, and then determining whether a scene is switched; and performing the second coding by setting quantization parameters with different strategies according to whether the scene is switched.

公开(公告)号：US20210041762A1

公开(公告)日：2021-02-11

申请号：US16988648

申请日：2020-08-08

Applicant: University of Electronic Science and Technology of China

Inventor： Mao Ye ,  Xiaoxi Chen ,  Guangyong Li ,  Yalei Zhang

IPC: G02F1/29

Abstract: An optical device includes a first electrode layer, a first alignment layer, a liquid crystal layer, a second alignment layer, and a second electrode layer being arranged in turn along a light transmission direction; wherein the first electrode layer comprises a first electrode, a second electrode, and a first impedance membrane arranged between the first electrode and the second electrode, and the first electrode and the second electrode are respectively arranged on opposite ends of the first impedance membrane; the second electrode layer has a structure similar to that of the first electrode layer. The four electrodes form a light transmission hole being shaped as a parallelogram. The present invention solves the problem that the focal length of the liquid crystal lens cannot be accurately adjusted due to the instability of the impedance of the impedance membrane of the present liquid crystal lens.

公开(公告)号：US11237451B2

公开(公告)日：2022-02-01

申请号：US16988648

申请日：2020-08-08

Applicant: University of Electronic Science and Technology of China

Inventor： Mao Ye ,  Xiaoxi Chen ,  Guangyong Li ,  Yalei Zhang

IPC: G02F1/29

Abstract: An optical device includes a first electrode layer, a first alignment layer, a liquid crystal layer, a second alignment layer, and a second electrode layer being arranged in turn along a light transmission direction; wherein the first electrode layer comprises a first electrode, a second electrode, and a first impedance membrane arranged between the first electrode and the second electrode, and the first electrode and the second electrode are respectively arranged on opposite ends of the first impedance membrane; the second electrode layer has a structure similar to that of the first electrode layer. The four electrodes form a light transmission hole being shaped as a parallelogram. The present invention solves the problem that the focal length of the liquid crystal lens cannot be accurately adjusted due to the instability of the impedance of the impedance membrane of the present liquid crystal lens.

公开(公告)号：US11310404B2

公开(公告)日：2022-04-19

申请号：US17263878

申请日：2020-06-05

Applicant: BOE Technology Group Co., Ltd. ,  University of Electronic Science and Technology of China

Inventor： Xuehui Zhu ,  Xiaoxi Chen ,  Junrui Zhang ,  Mao Ye ,  Lijia Zhou ,  Zhidong Wang ,  Shuang Du

IPC: H04N5/232 ,  H04N5/225 ,  G02F1/29

Abstract: An imaging device, an imaging control method, an electronic apparatus, and a readable medium. The imaging device comprises: an image sensing assembly; a liquid crystal lens assembly provided with light control components corresponding to an image sensing component, wherein each of the light control components comprises a first liquid crystal component and a second liquid crystal component, which are arranged opposite each other, and the orientation of liquid crystal molecules in the first liquid crystal component is perpendicular to the orientation of liquid crystal molecules in the second liquid crystal component; and a processing assembly, wherein the processing assembly is respectively electrically connected to the image sensing assembly and the liquid crystal lens assembly, and is configured to adjust, according to a light receiving amount measured by the image sensing assembly, the voltage applied to the light control component.

公开(公告)号：US11240503B2

公开(公告)日：2022-02-01

申请号：US17117142

申请日：2020-12-10

Applicant: University of Electronic Science and Technology of China

Inventor： Ce Zhu ,  Hongwei Guo ,  Yuyang Liu ,  Mao Ye

IPC: H04N19/124 ,  H04N19/147 ,  H04N19/177 ,  H04N19/52

Abstract: A method for optimizing a second coding is provided. The method includes: Setting a quantization parameter of a start frame of a video sequence according to a range of an input quantization parameter QP0 of a coder; performing first coding with a simplified method, and calculating a frame-level temporal impact factor ki of a current frame and a block-level temporal impact factor kB,j of all 16×16 pixel blocks in the current frame; restoring reference list information of the coder after the first coding is completed, and then determining whether a scene is switched; and performing the second coding by setting quantization parameters with different strategies according to whether the scene is switched.