Binocular stereo vision device, adjusting method and apparatus thereof and display device

Patent metadata

Field	Value
Publication number	US-10194140-B2
Application number	US-201515037527-A
Country	US
Kind code	B2
Filing date	Nov 23, 2015
Priority date	Jun 10, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A binocular stereo vision device, adjusting method and apparatus thereof and a display device are provided. The binocular stereo vision device includes: an acquisition system including two acquisition units (1) arranged at intervals and being configured to acquire a depth distance from a measured object to the acquisition system; an adjustment mechanism (3) configured to adjust a distance between the two acquisition units (1); a sensor (2) configured to acquire an initial distance between the two acquisition units (1); and a processing unit (4) configured to obtain a standard distance between the two acquisition units (1) according to the acquired depth distance from the measured object to the acquisition system and output a control signal according to a difference between the standard distance and the initial distance, wherein the adjustment mechanism (3) adjusts the distance between the two acquisition units (1) to be equal to the standard distance according to the control signal outputted by the processing unit (4). The binocular stereo vision device, adjusting method and apparatus thereof and the display device can improve the recognition range and the recognition accuracy of the binocular stereo vision device.

First claim

The invention claimed is:

1. A binocular stereo vision device, comprising:
an acquisition system including two acquisition units arranged at intervals and being configured to acquire a depth distance from a measured object to the acquisition system;
an adjuster configured to adjust a distance between the two acquisition units;
a sensor configured to acquire an initial distance between the two acquisition units; and
a processing unit configured to obtain a standard distance between the two acquisition units according to the acquired depth distance from the measured object to the acquisition system and output a control signal according to a difference between the standard distance and the initial distance, wherein the adjuster adjusts the distance between the two acquisition units to be equal to the standard distance according to the control signal outputted by the processing unit, the processing unit includes: a calculator configured to obtain the standard distance according to a formula D best =(L*F)/R Z and obtain an initial control signal according to the difference between the standard distance and the initial distance, in which D best refers to the acquired depth distance from the measured object to the acquisition system; L refers to the standard distance between the two acquisition units; F refers to a focal length of the acquisition units; R Z refers to a depth resolution.

2. The binocular stereo vision device according to claim 1 , wherein the processing unit further includes:
a controller being in signal connection with the calculator and configured to output the control signal according to the received initial control signal to control the adjuster to adjust the distance between the two acquisition units.

3. The binocular stereo vision device according to claim 2 , wherein in the two acquisition units, the first acquisition unit is fixed and the second acquisition unit is capable of moving relative to the first acquisition unit.

4. The binocular stereo vision device according to claim 3 , wherein the adjuster includes: a driver in signal connection with the processing unit and a movement module connected with the driver and configured to move the second acquisition unit.

5. The binocular stereo vision device according to claim 4 , wherein the movement module includes:
a threaded shaft; and
a mounting base slideably mounted on the threaded shaft and provided with the second acquisition unit.

6. The binocular stereo vision device according to claim 4 , wherein the movement module includes: a telescopic cylinder; a cylinder body of the telescopic cylinder is fixed relative to the driver; and an extension end of a cylinder rod of the telescopic cylinder is fixedly connected with the second acquisition unit.

7. The binocular stereo vision device according to claim 1 , further comprising: a sensing module being in signal connection with the processing unit and configured to control an operation of the processing unit according to a sensed command signal.

8. The binocular stereo vision device according to claim 2 , wherein the processing unit further includes:
a first receiver configured to receive the depth distance from the measured object to the acquisition system; and
a second receiver configured to receive the initial distance between the two acquisition units which has not been adjusted by the adjuster.

9. A display device, comprising: the binocular stereo vision device according to claim 1 .

10. A method for adjusting a binocular stereo vision device, comprising:
acquiring a depth distance from a measured object to an acquisition system;
acquiring an initial distance between two acquisition units which has not been adjusted by an adjuster;
obtaining a standard distance between the two acquisition units according to the acquired depth distance from the measured object to the acquisition unit, and outputting a control signal according to a difference between the standard distance and the initial distance; and
controlling the adjuster to adjust the distance between the two acquisition units to be equal to the standard distance according to the control signal,
wherein obtaining the standard distance between the two acquisition units according to the acquired depth distance from the measured object to the acquisition unit includes:
obtaining the standard distance according to a formula D best =(L*F)/R Z , in which D best refers to the acquired depth distance from the measured object to the acquisition system; L refers to the standard distance between the two acquisition units; F refers to a focal length of the acquisition unit; and R Z refers to a depth resolution.

11. An apparatus for adjusting the binocular stereo vision device, comprising:
a first receiver configured to receive a depth distance from a measured object to an acquisition system;
a second receiver configured to receive an initial distance between two acquisition units which has not been adjusted by an adjuster;
a calculator configured to obtain the standard distance according to a formula D best =(L*F)/R Z and obtain an initial control signal according to the difference between the standard distance and the initial distance, in which D best refers to the acquired depth distance from the measured object to the acquisition system; L refers to the standard distance between the two acquisition units; F refers to a focal length of the acquisition units; R Z refers to a depth resolution; and
a controller configured to output a control signal according to the initial control signal outputted by the calculator to control the adjuster to adjust the distance between the two acquisition units to be equal to the standard distance.

12. The display device according to claim 9 , wherein the processing unit further includes:
a controller being in signal connection with the calculator and configured to output the control signal according to the received initial control signal to control the adjuster to adjust the distance between the two acquisition units.

13. The display device according to claim 12 , wherein in the two acquisition units, the first acquisition unit is fixed and the second acquisition unit is capable of moving relative to the first acquisition unit.

14. The display device according to claim 13 , wherein the adjuster includes: a driver in signal connection with the processing unit and a movement module connected with the driver and configured to move the second acquisition unit.

15. The display device according to claim 14 , wherein the movement module includes:
a threaded shaft; and
a mounting base slideably mounted on the threaded shaft and provided with the second acquisition unit.

16. The display device according to claim 14 , wherein the movement module includes: a telescopic cylinder; a cylinder body of the telescopic cylinder is fixed relative to the driver; and an extension end of a cylinder rod of the telescopic cylinder is fixedly connected with the second acquisition unit.

17. The display device according to claim 1 , further comprising: a sensing module being in signal connection with the processing unit and configured to control an operation of the processing unit according to a sensed command signal.

18. The display device according to claim 12 , wherein the processing unit further includes:
a first receiver configured to receive the depth distance from the measured object to the acquisition system; and
a second receiver configured to receive the initial distance between the two acquisition units which has not been adjusted by the adjuster.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Chen Shuo

Classifications

• H04N13/296 Primary

  Synchronisation thereof; Control thereof · CPC title

• H04N13/239

  using two two-dimensional [2D] image sensors having a relative position equal to or related to the interocular distance (H04N13/243 takes precedence) · CPC title

• G01C3/04

  Adaptation of rangefinders for combination with telescopes or binoculars · CPC title

• H04N2213/001

  Constructional or mechanical details · CPC title

• G01C3/14

  with binocular observation at a single point, e.g. stereoscopic type (G01C3/20 takes precedence) · CPC title