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Driving three-dimensional omni-directional vision sensor based on laser diode light source

An all-round vision and laser diode technology, applied to lasers, laser devices, laser components, etc., can solve problems such as poor real-time performance, high computer resource consumption, and low robustness

Inactive Publication Date: 2011-05-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In order to overcome the disadvantages of the existing stereo vision measurement devices, such as large consumption of computer resources, poor real-time performance, poor practicability, and low robustness, the present invention provides a device that can reduce the consumption of computer resources, quickly complete the measurement, and has good real-time performance. Practical and robust active three-dimensional omnidirectional vision sensor based on laser diode light source

Method used

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  • Driving three-dimensional omni-directional vision sensor based on laser diode light source
  • Driving three-dimensional omni-directional vision sensor based on laser diode light source
  • Driving three-dimensional omni-directional vision sensor based on laser diode light source

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Embodiment 1

[0099] refer to Figure 1-9 , Figures 13 to 15 , an active three-dimensional stereo omnidirectional vision sensor based on a laser diode light source, including an omnidirectional vision sensor with a fixed single point of view, a panoramic color volume structured light generator with a fixed single emission center point, and a three-dimensional image sensor for omnidirectional images A microprocessor for stereo camera measurement, the viewpoint of the omnidirectional visual sensor and the emission center point of the panoramic color volume structured light generator are arranged on the same axis;

[0100] Described omni-directional visual sensor comprises hyperboloid mirror surface 2, loam cake 1, transparent semicircular outer cover 3, lower fixing seat 4, camera unit fixing seat 5, camera unit 6, connection unit 7, upper cover 8, as attached figure 1 As shown; the hyperboloid mirror 2 is fixed on the upper cover 1, and the connecting unit 7 connects the lower fixing base...

Embodiment 2

[0164] refer to Figure 1 to Figure 15 , in the manufacture of the panoramic color volume structured light generator of the present embodiment, replace the circular surface substrate 9-1 with a spherical substrate, cancel the motor gear transmission part, and adopt multiple groups of laser semiconductor LDs on the spherical substrate, in the same latitude line Laser semiconductors with the same light-emitting wavelength are installed on the same longitude line from the north latitude to the south latitude, and the laser semiconductors with low light-emitting wavelengths are arranged in sequence from the laser semiconductors with high light-emitting wavelengths. Although this solution can remove the motor gear transmission part, it increases the number of laser semiconductors.

[0165] Other structures and working processes of this embodiment are the same as those of Embodiment 1.

Embodiment 3

[0167] refer to Figure 1 to Figure 15 In terms of the selection of laser semiconductors in this embodiment, in some special occasions, if the panoramic color structured light generator is required to emit infrared spectrum, the spectral range of the LD device is selected to be 700nm-2000nm.

[0168] Other structures and working processes of this embodiment are the same as those of Embodiment 1.

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Abstract

The invention relates to a driving three-dimensional omni-directional vision sensor based on a laser diode light source, comprising an omni-directional vision sensor with fixed and single viewpoint, a full-view color body structure optical generator with fixed and single transmitting central point and a microprocessor used for carrying out three-dimensional photographic measurement on the omni-directional images; the viewpoint of the omni-directional vision sensor and the transmitting central point of the full-view color body structure optical generator are configured on a same axis line; theomni-directional vision sensor comprises a photographic unit and a double curved surface catadioptric unit, wherein, the photographic unit is a wide-dynamic CMOS imaging device; the full-view color body structure optical generator comprises a round face body base plate and a group of laser diodes with different luminescence center wavelengths; and the microprocessor comprises an LD light source control unit, a video image reading module, a space information calculating module and a three-dimensional image reconstructing module. The driving three-dimensional omni-directional vision sensor can reduce calculation, fast completes measurement, and has good real time and strong practicability.

Description

technical field [0001] The invention relates to the application of semiconductor lasers, optical technology, machinery and computer vision technology in stereo vision measurement, in particular to an active three-dimensional stereo omnidirectional vision sensor. Background technique [0002] Binocular stereo vision 3D measurement and stereo reconstruction technology based on computer vision is an emerging application technology with great development potential and practical value, which can be widely used in industrial inspection, geographical survey, criminal investigation and evidence collection, security identification, Robot vision, unmanned driving and many other application fields. [0003] For unmanned driving, computer vision is generally used to realize the perception of the road environment, and anthropomorphic control algorithms are used to realize vehicle driving. To achieve: (1) the computer vision system can automatically adapt to changes in environmental light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/25H01S5/40H01S5/02H01S5/022H01S5/042G02B27/00
Inventor 汤一平汤晓燕俞立
Owner ZHEJIANG UNIV OF TECH
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