公开(公告)号：US10779735B2

公开(公告)日：2020-09-22

申请号：US16137585

申请日：2018-09-21

Applicant: Quanta Computer Inc.

Inventor： Kai-Ju Cheng ,  Chin-Yuan Ting ,  Hsin-Lun Hsieh ,  Tsung-Hsin Lu ,  Yu-Hsun Chen ,  Hao-Ping Lee

IPC: A61B5/00 ,  A61B6/14 ,  A61B6/00 ,  A61C9/00

Abstract: An image-processing method for marking plaque fluorescent reaction areas is provided, including: obtaining a first RGB image of a mouth region; obtaining a second RGB image of the mouth region; respectively converting the first RGB image and the second RGB image into a first HSV image and a second HSV image; obtaining a first average brightness value of the first HSV image and a second average brightness value of the second HSV image; normalizing the first average brightness value or the second average brightness value according the first average brightness value and the second average brightness value to obtain a normalized image; converting the normalized image into a third RGB image, and obtaining a plurality of pixel points of the dental plaque according to the third RGB image and the first RGB image or the second RGB image; and marking the pixel points in the third RGB image.

公开(公告)号：US11471034B2

公开(公告)日：2022-10-18

申请号：US16774279

申请日：2020-01-28

Applicant: Quanta Computer Inc.

Inventor： Kai-Ju Cheng ,  Hsin-Lun Hsieh ,  Chin-Yuan Ting ,  Tsung-Hsin Lu ,  Huan-Tang Wu ,  Shao-Ang Chen ,  Yu-Hsun Chen ,  Jia-Chyi Wang ,  Chih-Wei Sung ,  Huan-Pin Shen

IPC: G06K9/00 ,  A61B1/04 ,  A61B1/06 ,  A61B1/24 ,  G06T7/00 ,  A61B1/00

Abstract: A method for distinguishing plaque and calculus is provided. The method is used in a device and includes the following steps: emitting, by a blue light-emitting diode, blue light to illuminate teeth in an oral cavity, wherein the blue light is used to generate autofluorescence of plaque and calculus on the teeth; sensing, by an image sensor, the autofluorescence of plaque and calculus; and distinguishing, by a processor, a plaque area and a calculus area on the teeth based on the autofluorescence.

公开(公告)号：US10791935B2

公开(公告)日：2020-10-06

申请号：US16157312

申请日：2018-10-11

Applicant: Quanta Computer Inc.

Inventor： Kai-Ju Cheng ,  Hsin-Lun Hsieh ,  Chin-Yuan Ting ,  Tsung-Hsin Lu

IPC: A61B6/14 ,  A61B5/00 ,  A61B1/045 ,  A61B1/24 ,  H04N5/235

Abstract: A method for dynamically adjusting fluorescent imaging is provided. The method is used in a device and includes the following steps: emitting, by a light emitting diode, light to illuminate teeth in an oral cavity, wherein the light is used to generate fluorescence from the teeth; filtering, by an optical filter, the fluorescence; receiving, by an image sensor, a signal and adjusting a gain value of an analog-to-digital converter according to the signal; converting, by the analog-to-digital converter, the filtered fluorescence into a digital signal and adjusting the digital signal according to the gain value; and generating, by a processor, an output image signal that corresponds to the gain value from the digital signal.

公开(公告)号：US10799120B2

公开(公告)日：2020-10-13

申请号：US16217112

申请日：2018-12-12

Applicant: Quanta Computer Inc.

Inventor： Kai-Ju Cheng ,  Chin-Yuan Ting ,  Hsin-Lun Hsieh ,  Tsung-Hsin Lu ,  Yu-Hsun Chen ,  Hao-Ping Lee

IPC: G06K9/00 ,  A61B5/00 ,  A61B1/04 ,  A61B1/06 ,  A61B1/24 ,  G06T11/00

Abstract: An image processing method for a fluorescence reaction region of teeth. The image processing method includes emitting blue light from a light source to illuminate the teeth in a mouth, so that the teeth generate fluorescence; capturing a first teeth image of the teeth by an image capturing unit; separating the first teeth image into a first red-value image, a first green-value image, and a first blue-value image by a processing unit; transforming the first red-value image into a second red-value image by the processing unit using a pixel value transforming function; and combining the second red-value image, the first green-value image, and the first blue-value image into a second teeth image by the processing unit.

公开(公告)号：US20200022582A1

公开(公告)日：2020-01-23

申请号：US16137585

申请日：2018-09-21

Applicant: Quanta Computer Inc.

Inventor： Kai-Ju Cheng ,  Chin-Yuan Ting ,  Hsin-Lun Hsieh ,  Tsung-Hsin Lu ,  Yu-Hsun Chen ,  Hao-Ping Lee

IPC: A61B5/00 ,  A61B6/00 ,  A61B6/14 ,  A61C9/00

Abstract: An image-processing method for marking plaque fluorescent reaction areas is provided, including: obtaining a first RGB image of a mouth region; obtaining a second RGB image of the mouth region; respectively converting the first RGB image and the second RGB image into a first HSV image and a second HSV image; obtaining a first average brightness value of the first HSV image and a second average brightness value of the second HSV image; normalizing the first average brightness value or the second average brightness value according the first average brightness value and the second average brightness value to obtain a normalized image; converting the normalized image into a third RGB image, and obtaining a plurality of pixel points of the dental plaque according to the third RGB image and the first RGB image or the second RGB image; and marking the pixel points in the third RGB image.