CN103505182A - Positioning device and positioning method of handheld imaging system - Google Patents

Abstract

The invention discloses a positioning device and a positioning method of a handheld imaging system. The imaging system is provided with at least three groups of laser diodes, each laser diode group comprises at least two laser diodes, the included angle between laser rays emitted by the two laser diodes of each group is regulated, the intersection point of each laser diode group is located on a preset imaging surface, three or more groups of laser diodes are irradiated to an imaged object, the distance and angle of the imaging system relative to the imaged object are regulated, and when the two laser rays of each group are intersected on the imaged object to become a point, the fact that the distance and angle between the imaging system and the imaged object reach preset values is indicated, and the best imaging result is obtained.

Description

A kind of positioner of hand-held imaging system and localization method

Technical field

The present invention relates to a kind of imaging localization method, specifically, relate to a kind of positioner and localization method of hand-held imaging system.

Background technology

For hand-held imaging system, when imaging, for imaging system, with respect to the distance and the angle that are imaged imaging object, there is strict requirement, if depart from default position, can produce obvious deviation, and hand-held imaging device often lacks clear and definite judgement, whether reach correct image space.

For example, vein Enhanced Imaging instrument arrives skin surface by human vein image projection, contribute to medical personnel to find the vein that will puncture, still, during use, require by vein Enhanced Imaging instrument be placed in image space directly over, and and the distance of image space is to certain requirement, just can reach optimum imaging effect, and at present, only rely on medical personnel's eyes and experience to judge, due to subjective differences, can cause certain error.

Summary of the invention

The present invention has overcome shortcoming of the prior art, a kind of positioner and localization method of hand-held imaging system are provided, when imaging, the hot spot that utilizes laser diode to produce, an objective image space criterion is provided, has reduced randomness and the error of subjective judgment.

In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:

A positioner for hand-held imaging system arranges at least three group laser diodes in imaging system, and every group of laser diode comprises at least two laser diodes.

A localization method for the positioner of system, comprises the following steps:

1) with at least three group laser diodes, be radiated on the object to be imaged, every group of laser diode comprises at least two laser diodes;

2) every group two laser diodes all send laser, and the two bundle laser of every group intersect formation one intersection point;

3) regulate the angle of every group of two laser diodes, all intersection points are all dropped on and be preset in image planes, show that distance and the angle between imaging system and the object to be imaged reaches predetermined value.

Compared with prior art, the invention has the beneficial effects as follows:

The positioner of a kind of hand-held imaging system of the present invention and localization method, at least three group laser diodes are set in imaging system, every group of laser diode comprises at least two laser diodes, by regulating the angle of the laser that two laser diodes of every group send, the intersection point of every group of laser diode is all positioned on default imaging surface, more than three groups or three groups laser diodes is radiated on the object to be imaged, regulate imaging system with respect to distance and the angle of the object to be imaged, when all intersecting on imaging object, two laser of every group become when a bit, show that distance and angle between imaging system and the object to be imaged reach predetermined value, obtain best imaging results.

Accompanying drawing explanation

Accompanying drawing is used to provide a further understanding of the present invention, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention, in the accompanying drawings:

Fig. 1 adopts to be specified to image planes schematic diagram with the intersection point that three groups of six laser diodes send laser.

Fig. 2 determines the distance schematic diagram of imaging system and imaging surface with two laser diodes.

Fig. 3 determines the angle schematic diagram of imaging system and imaging surface with two laser diodes.

Fig. 4 is that the present invention carries out imaging schematic diagram to upper arm surface.

The specific embodiment

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.

As shown in Figure 1, the present invention arranges the first laser diode 2 in imaging system 1, the second laser diode 3, the 3rd laser diode 4, the 4th laser diode 5, the 5th laser diode 6, the 6th laser diode 7, be divided into three groups, every group comprises 2 laser laser diodes, the first laser diode 2 and the second laser diode 3 are one group, the 3rd laser diode 4 and the 4th laser diode 5 are one group, the 5th laser diode 6 and the 6th laser diode 7 are one group, the laser that two laser diodes of every group send has certain angle, adjust its intersection point and be positioned at default imaging surface 8, three groups of laser diodes form respectively the first intersection point 9 on default imaging surface, the second intersection point 10, the 3rd intersection point 11.

While actually employed, whether the intersection point situation according to laser diode on imaging surface, can judge actual imaging face and be preset to image planes 8 positions and coincide.As shown in Figure 2, with the first laser diode 2, the 6th laser diode 7 is example, when the object being imaged is positioned at imaging surface 8 plan-position, place, just in time in being preset to image planes, at this moment, on imaging surface, there is the 4th intersection point 14, when imaging surface departs from plane 8 plan-position, place, as shown in the first plane 12 and the second plane 13, at this moment, can there is respectively the 5th intersection point 15, the 6th intersection point 16, the 7th intersection point 17, the 8th intersection point 18, so, crossing situation according to laser diode on imaging surface can be determined the distance of imaging system and the object to be imaged.

Only according to the intersection point of two laser diodes, can determine distance, but cannot determine the angle of imaging system and imaging surface, as shown in Figure 3, all can there is the 4th intersection point 14 in the first laser diode 2, the 6th laser diode 7, but have different imaging angles in imaging surface 8 and the 3rd plane 19.

For unique definite imaging system and distance and the angle of imaging surface 8, at least need three groups of laser diodes, as shown in Figure 1, use the intersection point of 3 groups of laser diodes, unique image planes 8 that are specified to, coincide the distance of the face that is imaged 8 and imaging system and angle and preset value.

Also can determine specific imaging plane with four groups or more groups of laser diodes.

Consult Fig. 4, when actual imaging, regulate the position of arm or imaging system, when the intersection point of three groups of laser diodes is all when arm 20 occurs, surface now arm surface and default optimum imaging surface coincide, and can carry out imaging.

Finally it should be noted that: these are only the preferred embodiments of the present invention; be not limited to the present invention; although the present invention is had been described in detail with reference to embodiment; for a person skilled in the art; its technical scheme that still can record aforementioned each embodiment is modified; or part technical characterictic is wherein equal to replacement; but within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.

Claims (2)

1. a positioner for hand-held imaging system, is characterized in that, at least three group laser diodes are set in imaging system, and every group of laser diode comprises at least two laser diodes.

2. the localization method of the positioner of a kind of hand-held imaging system according to claim 1, is characterized in that, comprises the following steps:

1) with at least three group laser diodes, be radiated on the object to be imaged, every group of laser diode comprises at least two laser diodes;

2) every group two laser diodes all send laser, and the two bundle laser of every group intersect formation one intersection point;

3) regulate the angle of every group of two laser diodes, all intersection points are all dropped on and be preset in image planes, show that distance and the angle between imaging system and the object to be imaged reaches predetermined value.

Images