CN103505182B - 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 the image is made, strict requirement is had relative to the Distance geometry angle being imaged imaging object for imaging system, if depart from default position, then can produce obvious deviation, and hand-held imaging device often lacks clear and definite judgement, whether reach correct image space.

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

Summary of the invention

Instant invention overcomes shortcoming of the prior art, provide a kind of positioner and localization method of hand-held imaging system, when imaging, utilize the hot spot that laser diode produces, an objective image space criterion is provided, decreases 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, imaging system arranges at least three group laser diodes, often organizes laser diode and comprises at least two laser diodes.

A localization method for the positioner of hand-held imaging system, comprises the following steps:

1) be radiated on the object to be imaged with at least three group laser diodes, often organize laser diode and comprise at least two laser diodes;

2) two laser diodes often organized all send laser, and the two bundle laser often organized intersect formation one intersection point;

3) regulate the angle often organizing two laser diodes, all intersection points are all dropped on and is preset in image planes, show that the Distance geometry 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, imaging system arranges at least three group laser diodes, often organize laser diode and comprise at least two laser diodes, the angle of the laser sent by regulating two laser diodes often organized, the intersection point often organizing laser diode is made all to be positioned on default imaging surface, the laser diode of more than three groups or three groups is radiated on the object to be imaged, regulate imaging system relative to the Distance geometry angle of the object to be imaged, when two laser often organized on imaging object all intersect become some time, show that the Distance geometry angle between imaging system and the object to be imaged reaches predetermined value, namely best imaging results is obtained.

Accompanying drawing explanation

Accompanying drawing is used to provide a further understanding of the present invention, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the 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 is the distance schematic diagram by two laser diode determination imaging systems and imaging surface.

Fig. 3 angle schematic diagram of two laser diode determination imaging systems and imaging surface.

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

Detailed description of the invention

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of 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, second laser diode 3, 3rd laser diode 4, 4th laser diode 5, 5th laser diode 6, 6th laser diode 7, be divided into three groups, often group comprises 2 laser diodes, first laser diode 2 and the second laser diode 3 are one group, 3rd laser diode 4 and the 4th laser diode 5 are one group, 5th laser diode 6 and the 6th laser diode 7 are one group, the laser that two laser diodes often organized send has certain angle, adjust its intersection point and be positioned at default imaging surface 8, namely three groups of laser diodes form the first intersection point 9 respectively on the imaging surface preset, second intersection point 10, 3rd intersection point 11.

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

Only distance can be determined according to the intersection point of two laser diodes, but the angle of imaging system and imaging surface cannot be determined, 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 on imaging surface 8 and the 3rd plane 19.

In order to the Distance geometry angle of unique determination imaging system and 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, uniquely be specified to image planes 8, the Distance geometry angle of the face that is imaged 8 and imaging system and preset value are coincide.

Also four groups or more group laser diodes can be used to determine specific imaging plane.

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

Last it is noted that these are only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1. a localization method for the positioner of hand-held imaging system, is characterized in that, imaging system arranges at least three group laser diodes, often organizes laser diode and comprises at least two laser diodes; Comprise the following steps:

1) be radiated on the object to be imaged with at least three group laser diodes, often organize laser diode and comprise at least two laser diodes;

2) two laser diodes often organized all send laser, and the two bundle laser often organized intersect formation one intersection point;

3) regulate the angle often organizing two laser diodes, all intersection points are all dropped on and is preset in image planes, show that the Distance geometry angle between imaging system and the object to be imaged reaches predetermined value.