公开(公告)号：US20210329201A1

公开(公告)日：2021-10-21

申请号：US16910112

申请日：2020-06-24

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： HSIU-WEN WANG ,  Chih-Wen Lin

IPC: H04N9/093 ,  H04N5/232

Abstract: A camera module aligning method includes the following steps. Firstly, a reference chart having plural chart characteristic points is provided. Then, a camera module is used to shoot the reference chart, and an installation position and an installation posture of the camera module are acquired according to an internal parameter matrix and an external parameter matrix. When the camera module shoots the reference chart and an image is formed on an imaging plane of the camera module, a relationship between at least one image characteristic point of the image and the corresponding chart characteristic point complies with a standard relationship. The standard relationship is defined by the internal parameter matrix and the external parameter matrix.

公开(公告)号：US20250124728A1

公开(公告)日：2025-04-17

申请号：US18404944

申请日：2024-01-05

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： HSIU-WEN WANG ,  Chih-Wen Lin

IPC: G06V20/68 ,  G06V10/143 ,  G06V20/10 ,  G06V20/52

Abstract: A food status recognition and display system and a food status recognition and display method are provided. The food status recognition and display system includes a camera and light source module, a processing module and a display interface. The camera and light source module faces a food storage environment. After the camera and light source module photographs at least one food item using the light beams in a visible light band, a near-infrared light band and a short-wave infrared light band, respective food photography results are obtained. The processing module receives the food photography results. After the food photography results are processed through an image recognition process, a vegetation index formula, a vegetation water content formula and a vegetation correlation analysis formula, at least one corresponding food status information is generated and then transmitted.

公开(公告)号：US20240144575A1

公开(公告)日：2024-05-02

申请号：US18155086

申请日：2023-01-17

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： HSIU-WEN WANG ,  CHIH-WEN LIN

IPC: G06T15/00 ,  G06T7/13 ,  G06T7/50 ,  G06V10/141 ,  H04N13/106

CPC classification number: G06T15/00 ,  G06T7/13 ,  G06T7/50 ,  G06V10/141 ,  H04N13/106 ,  G06T2207/10028 ,  G06T2207/10152

Abstract: A 3D image sensing device includes a first camera lens, a second camera lens and a light source. A 3D image processing method for the 3D image sensing device includes the following steps. Firstly, a target is photographed by the first camera lens and the second camera lens, and the obtained images are processed in a stereo vision mode. Consequently, a first depth map is obtained. After the light source emits plural feature points to the target, the target is photographed by the first camera lens and the second camera lens, and the obtained images are processed in an active stereo vision mode. Consequently, a second depth map is obtained. The first depth map and the second depth map are synthesized as a synthesized depth map according to a synthetization strategy.

公开(公告)号：US20240021034A1

公开(公告)日：2024-01-18

申请号：US17821809

申请日：2022-08-24

Applicant: Primax Electronics Ltd.

Inventor： HSIU-WEN WANG ,  Chih-Wen Lin

IPC: G07C9/00 ,  G10L17/24 ,  G06V40/10 ,  G06V40/20 ,  G08B21/18

CPC classification number: G07C9/00563 ,  G10L17/24 ,  G06V40/10 ,  G06V40/20 ,  G08B21/18

Abstract: A security authentication method is provided. In a step (a), a to-be-recognized image information and a to-be-recognized voice information about a user are provided. Then, a step (b) is performed to identify and judge whether the to-be-recognized image information and the to-be-recognized voice information comply with a registered image information and a registered voice information, respectively. In a step (c), if the judging condition of the step (b) is satisfied, a security information prompt signal is generated. In a step (d), a to-be-recognized security information is provided by the user. Then, a step (e) is performed to identify and judge whether the to-be-recognized security information complies with an abnormal warning information. In a step (f), if the judging condition of the step (e) is satisfied, an abnormal state warning and processing process is performed.

公开(公告)号：US20220377315A1

公开(公告)日：2022-11-24

申请号：US17383471

申请日：2021-07-23

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： HSIU-WEN WANG ,  CHIH-WEN LIN

IPC: H04N17/00 ,  H04N5/225 ,  H04N5/235 ,  G02B7/00

Abstract: A method for aligning a camera lens with a light source is provided. The method is used in an aligning system. The aligning system includes an alignment element, a reference camera and a fixture. Firstly, the reference camera shoots a reference chart on the alignment element. Then, the light source is placed on the fixture. The light source illuminates the alignment element to generate an illumination result. The reference camera shoots the illumination result. If the illumination result does not comply with a preset specification represented by the reference chart, the fixture adjusts the light source. Then, the camera lens is placed on the fixture. Then, the camera lens shoots the reference chart on the alignment element to acquire a shooting result. If the shooting result does not comply with the preset specification, the fixture adjusts the camera lens.