公开(公告)号：US20230156167A1

公开(公告)日：2023-05-18

申请号：US17716554

申请日：2022-04-08

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Wei-Hsiang Shen ,  Kai-Chun Su ,  Tsung-Hsuan Li ,  Chao-Hsun Yang ,  Shih-Tse Chen

IPC: H04N9/64 ,  G06T7/90 ,  G06V10/774 ,  G06V10/56 ,  H04N5/33

CPC classification number: H04N9/64 ,  G06T7/90 ,  G06V10/56 ,  G06V10/7747 ,  H04N5/33 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06V2201/07

Abstract: An image recognition system includes a color conversion module and a target recognition module. The color conversion module is configured to convert a gray-level image into a preset color image according to a conversion function. The target recognition module includes a machine learning algorithm, and the machine learning algorithm includes a plurality of functions and a plurality of parameters. The machine learning algorithm receives the preset color image, and outputs a recognition result according to the functions and the parameters, the recognition result including an existent target or a null target.

公开(公告)号：US20240242535A1

公开(公告)日：2024-07-18

申请号：US18138227

申请日：2023-04-24

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Kai-Chun Su ,  Chao-Hsun Yang ,  Shih-Tse Chen

IPC: G06V40/16 ,  G06V10/80 ,  G06V10/82

CPC classification number: G06V40/165 ,  G06V10/806 ,  G06V10/82 ,  G06V40/166 ,  G06V40/171

Abstract: A detection system and a detection method are provided. The detection method includes: receiving an image containing a face by an angle acquisition module and obtaining a first angle, a second angle and a third angle of the face based on the image; obtaining a first projection value and a second projection value based on the first angle, the second angle and the third angle by a projection calculation module; and performing by a confidence calculation module: performing an exponentiation calculation on the first projection value based on a first correction value to obtain a third value; performing an exponentiation calculation on the second projection value based on a second correction value to obtain a fourth value; and obtaining a confidence value based on the third value and the fourth value.

公开(公告)号：US20240242536A1

公开(公告)日：2024-07-18

申请号：US18138259

申请日：2023-04-24

Applicant: REALTEK SEMICONDUCTOR CORP.

Inventor： Kai-Chun Su ,  Min-Xuan Qiu ,  Shih-Tse Chen

IPC: G06V40/16 ,  G06V10/82

CPC classification number: G06V40/165 ,  G06V10/82

Abstract: A detection system and a detection method are provided. The detection method includes: obtaining first, second and third keypoints of a face by a keypoint acquisition module based on an image containing the face, the keypoint acquisition module obtaining the third keypoint based on a predetermined position on a midline of a human face and the first and the second keypoints based on two paired positions outside the midline; obtaining a vector by a first calculation module based on the first and second keypoints; obtaining a two-variable linear function by a second calculation module based on the vector and the third keypoint; and substituting, by a determination module, the coordinates of the first keypoint and the coordinates of the second keypoint into the two-variable linear function to obtain first and second values, respectively, and determining the state of the face based on the first and second values.