公开(公告)号：US20240410782A1

公开(公告)日：2024-12-12

申请号：US18736543

申请日：2024-06-07

Applicant: VIVOTEK INC.

Inventor： Chung-Kai Chang

IPC: G01M11/02 ,  H04N17/00

Abstract: A resolution detection device is applied to a camera device and includes at least one arc-shaped structural member and an identification member. The at least one arc-shaped structural member is disposed on a position distant from a detection point in a predefined distance. The identification member includes a plurality of identification patterns. The identification member is formed on the at least one arc-shaped structural member, and a plurality of intervals between the detection point and each of the plurality of identification patterns is set as the predefined distance. The camera device acquires a captured image via the detection point, and the captured image contains the plurality of identification patterns. The resolution detection device further includes a relay lens disposed on the detection point.

公开(公告)号：US20230419476A1

公开(公告)日：2023-12-28

申请号：US18210072

申请日：2023-06-14

Applicant: VIVOTEK INC.

Inventor： Chung-Kai Chang

IPC: G06T7/00 ,  G06T5/00

CPC classification number: G06T7/001 ,  G06T5/002

Abstract: An image defect identification method is applied to an image analysis device with an image receiver and an operation processor. The image defect identification method divides a detection image acquired by the image receiver into a plurality of pixel groups, transforms one of the plurality of pixel groups into a distribution curve, compares the distribution curve with a reference curve, and determines an area of the detection image conforming to a specific section of the distribution curve has defect when a difference between the specific section of the distribution curve and a related section of the reference curve is greater than a predefined threshold.