公开(公告)号：US20190350461A1

公开(公告)日：2019-11-21

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: A61B5/00 ,  H04N5/235 ,  A61B1/24 ,  A61B1/045

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：US20210059511A1

公开(公告)日：2021-03-04

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

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：US20200069188A1

公开(公告)日：2020-03-05

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

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.