Sensing method and apparatus

Patent metadata

Field	Value
Publication number	US-2021251495-A1
Application number	US-201916973160-A
Country	US
Kind code	A1
Filing date	Jun 13, 2019
Priority date	Jun 14, 2018
Publication date	Aug 19, 2021
Grant date	—

Abstract

Disclosed are a sensing method and a sensing apparatus for acquiring information about an object according to one embodiment. In particular, disclosed are a sensing method and a sensing apparatus for obtaining the shape of blood vessels by using information regarding the intensity of received light and information regarding the distance of an object.

First claim

1 - 10 . (canceled)

11 . A sensing apparatus comprising:
a sensor obtaining an intensity information of a received light and a distance information of an object using the received light reflected from the object; and a processor obtaining a first shape of a blood vessel of the object using the intensity information and obtaining a second shape of the blood vessel using the distance information and the first shape of the blood vessel.

12 . The sensing apparatus of claim 11 , wherein the first shape and/or the second shape includes a thickness information of the blood vessel.

13 . The sensing apparatus of claim 11 , comprising a liquid lens controlling a focus of the received light.

14 . The sensing apparatus of claim 11 , wherein the second shape is a shape reflected by a posture difference information of the first shape.

15 . The sensing apparatus of claim 11 , wherein the first shape is determined based on a region where intensity of the received light is relatively weak.

16 . The sensing apparatus of claim 11 , wherein the first shape is determined based on a region where intensity of the received light is smaller than an average value of entire region or a pre-set value.

17 . The sensing apparatus of claim 11 , wherein the processor compares the second shape with a standard shape stored in a storage.

18 . The sensing apparatus of claim 13 , configured to increase an angle of view by controlling the liquid lens when a distance from the sensor to the object is smaller than a pre-set value.

19 . The sensing apparatus of claim 13 , wherein the liquid lens is an add on type or an add in type.

20 . The sensing apparatus of claim 11 , wherein the processor decreases a receiving amount per hour of the received light or an exposed time of the received light of the sensor when a power of the received light received from the sensor is saturated.

21 . A camera module comprising:
a light source outputting an infrared light to an object; a liquid lens controlling a focus of a received light reflected from the object; a sensor obtaining a intensity information of the received light and a distance information of the object; and a processor obtaining a first shape of a blood vessel of the object using the intensity information and obtaining a second shape of the blood vessel using the distance information and the first shape of the blood vessel.

22 . The camera module of claim 21 , wherein the processor decreases a power of the infrared light outputted from the light source when a power of the received light received from the sensor is saturated.

23 . The camera module of claim 21 , wherein the processor decreases an amount of light output per time of the light source or an exposure time of the received light of the sensor when the power of the received light received from the sensor is saturated.

24 . The camera module of claim 21 , wherein the processor increases an angle of view by controlling the liquid lens when a distance from the sensor to the object is smaller than a pre-set value.

25 . The camera module of claim 21 , the distance information includes an information representing a distance from the sensor to the object, and the liquid lens performs an autofocusing in response to the distance information.

26 . The camera module of claim 21 , wherein the first shape is determined based on a region where intensity of the received light is relatively weak.

27 . The camera module of claim 21 , wherein the first shape is determined based on a region where intensity of the received light is smaller than an average value of entire region or a pre-set value.

28 . The camera module of claim 21 , wherein the second shape is a shape reflected by a posture difference information of the first shape.

29 . The camera module of claim 21 , wherein the processor compares the second shape with a standard shape stored in a storage.

30 . A sensing method comprising:
outputting, an output light to an object; obtaining a intensity information of a received light obtained by allowing the output light to be reflected from the object and obtaining a distance information of the object; obtaining a shape of a blood vessel of the object and a thickness information using the intensity information; and obtaining a 3D information of the blood vessel using the shape of the blood vessel, the thickness information, and the distance information.

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Ju Un
• Jang Seong Ha
• Joo Yang Hyun

Classifications

• G06V40/11

  Hand-related biometrics; Hand pose recognition · CPC title

• A61B5/0059 Primary

  using light, e.g. diagnosis by transillumination, diascopy, fluorescence (photoacoustic A61B5/0093; optical measurement of heart rate A61B5/02416; optical measurement of blood flow A61B5/0261; optical measurement of analytes A61B5/1455) · CPC title

• G06V40/14

  Vascular patterns · CPC title

• G06V10/60

  relating to illumination properties, e.g. using a reflectance or lighting model · CPC title

• A61B5/02007 Primary

  Evaluating blood vessel condition, e.g. elasticity, compliance · CPC title