CN2558013Y

CN2558013Y - Online palmprint collector

Info

Publication number: CN2558013Y
Application number: CN02273776U
Authority: CN
Inventors: 张大鹏; 王宽全; 卢光明; 邬向前
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-18
Filing date: 2002-06-18
Publication date: 2003-06-25
Anticipated expiration: 2012-06-18

Abstract

The utility model relates to an on-line palm print image collector which belongs to the technical field of on-line personal identification and Chinese medical automatic diagnosis instruments. The utility model is studied and designed for solving the problems that the collecting quality of the traditional palm image is concerned with the inking degree and the stamping force, the automatic palm print identification is very difficult, the collected image resolution is not high and the collecting is not convenient. The on-line palm print image collector of the utility model consists of a digital camera, a lamp house, a reflector, a communication interface, a computer, a collector bracket, a collector shell, a collector box and a palm box; wherein, the collector shell is fixed on the collector bracket; the digital camera, the lamp house and the reflector are arranged in the collector box; the digital camera is connected with the computer through the communication interface; the palm box is communicated with the collector box. The utility model which can obtain the palm image with higher resolution and keep the three-dimensional curved surface information of the palm, and can meet the current demands of on-line personal identification and Chinese medical automatic diagnosis has the advantages of real-time collecting, simple structure, easy assembly and convenient use and adjustment.

Description

The online palmprint image capture instrument

Technical field: the utility model relates to a kind of online palmprint image capture instrument, belongs to online identity identification and traditional Chinese medical science automatic diagnosis Instrument technology field based on human body biological characteristics.

Background technology: the identity recognizing technology based on human body biological characteristics is the cross discipline in conjunction with bioinformatics and computing machine subject of rising in recent ten years; So-called identity recognizing technology based on human body biological characteristics be meant utilize human body itself intrinsic physical features (as fingerprint, palmmprint, iris, face etc.) and behavioural characteristic (as letter, sound, keystroke etc.), differentiate the technology of personal identification by the method for Flame Image Process and pattern-recognition; Compare with traditional identification authentication mode based on password or ID card, it with better security, reliability and validity are arranged, be subjected to increasing attention in recent years, have broad application prospects; People's palmmprint has uniqueness and lifelong constant substantially characteristic, compares with fingerprint, and palmmprint regional big have abundanter texture information more; Therefore palmmprint can be used as an effective way of identification; The palmmprint recognition technology is mainly studied processing and the analysis of how passing through the digitizing palmprint image, finally determines the other side's identity; Online palmprint identification then requires biological identification technology and computer networking technology organically to combine, make its can be at internet arena, particularly play effectiveness at electric word commercial field; Simultaneously, also becoming present research focus gradually based on the automatic tcm diagnosis of palmmprint, solve in the traditional Chinese medical science field palmmprint developing bottleneck problem that objectifies of diagnosing a disease with the method for present information analysis, pattern-recognition, is to realize the modern important component part of the traditional Chinese medical science; It by automatically handle, analyst's palmmprint, can objectify for tcm diagnosis provides, quantitative indices; Realize one effectively based on the identification or the traditional Chinese medical science automatic analysis system of palmmprint, at first must study and solve palmmprint information and obtain this critical technical problems; Obtaining of palmmprint information data is the basis of all subsequent treatment, and its effect directly has influence on the accuracy of identity discriminating or medical diagnosis on disease; The present many biological characteristic identification systems and the performance of traditional Chinese medical science analytic system often do not reach gratifying degree, and it is one of them very crucial reason that characteristics of human body's information is obtained not enough or of low quality; But, the specialized equipment of palm-print image capture at present also do not occur being used for, therefore the palmmprint information obtain manner that is suitable for of design and equipment are used for obtaining in real time necessity that high-quality palmprint image is identification or traditional Chinese medical science automatic analysis system and crucial technology; Present palmmprint collection mainly contains following several mode:

Mode one: earlier palm is coated printing ink, the lines of the hand that will be coated with printing ink again print on the blank sheet of paper, with scanner the palmmprint on the paper are input to then that the mode with the two-dimensional digital gray level image stores in the computing machine; This acquisition mode generally can reach the image than higher resolution; But the dynamics of the degree of the quality of image and inking and seal is relevant, obtains palmprint image identical in quality owing to existing human factor to be not easy, and brings very big difficulty for the identification of robotization palmmprint.

Mode two: earlier palmmprint is taken pictures with the method that off line is taken a picture, again photo scanning is imported computing machine; The image resolution ratio that this method is gathered is not high, gathers yet inconvenience, but can obtain coloured image.

Summary of the invention: relevant for the dynamics of the degree of the acquisition quality that solves traditional palmprint image and inking and stamp, robotization palmmprint identification difficulty image resolution ratio big, that gather is not high and gather inconvenient problem Development and design goes out a kind of novel online palmprint image capture instrument, it is made up of digital camera head, light source, catoptron, communication interface, computing machine, instrument support, tool housing, instrument box and palm casing; Tool housing is fixed on the instrument support, and the instrument box of formation plays the effect of supporting digital camera head, light source, catoptron; The palm casing of the palm placed that forms communicates with instrument box; Instrument box and palm casing all play the effect of camera bellows again; Digital camera head is horizontally fixed on the tool housing of the interior left side of instrument box, light source be installed in digital camera head in the instrument box around, user's palmmprint can be reflexed to plane mirror in the digital camera head tilts to be installed on the tool housing of bottom surface in the instrument box and Right Inboard, angle between plane mirror and tool housing bottom surface is 45 degree, digital camera head links through communication interface and computing machine, with online acquisition to real-time being sent in the computing machine of palmmprint digital picture; Utilize the online palmprint image capture instrument can obtain more high-resolution palmprint image, can also keep the three-dimension curved surface information of palm, and have the advantage of real-time collection, can satisfy the requirement of current online identity identification and traditional Chinese medical science automatic diagnosis; That the online palmprint image capture instrument also has is simple in structure, assembling easily, use advantage and characteristics easy to adjust.

Description of drawings:

Fig. 1: projection view of the present utility model (containing the part shell);

Fig. 2: the typical palmprint image sample that acquires with the utility model.

Among the figure: 1 digital camera head, 2 light sources, 3 catoptrons, 4 communication interfaces, 5 computing machines, 6 instrument supports, 7 tool housings, 8 instrument box, 9 palm casings.

Embodiment:

Digital camera head (1) is core of the present utility model, obtain the palmprint image that reflects back via plane mirror (3) by it, and be sent in the computing machine (5) by the real-time palmprint image that will acquire of communication interface (4), this instrument has adopted the digital camera head (1) of Avenir company, can obtain effective palmmprint digital picture;

Light source (2) is very big to the collection effect influence of palmprint image, people's palm is three-dimension curved surface, each position of palm crosses bright to the reflection potential inequality of light with regard to the part that causes the palmprint image that obtains to have easily and part that have is dark excessively, the utility model adopts the annular light source around digital camera head (1), to guarantee to obtain the even and stable illumination condition to palm;

The online palmprint image acquisition request with the palmmprint digital picture real-time be sent to computing machine (5), thereby relate to information communication between computing machine (5) and the digital camera head (1), because quantity of information is little, the serial line interface of the communication interface of this instrument (4) employing standard is realized the information interaction with computing machine;

Tool housing (7) is fixed on instrument support (6) and goes up the effect that the instrument box (8) that forms the darkroom structure plays support digital camera head (1), light source (2), catoptron (3), require tool housing (7) inside surface to have good diffuse effect, in order to avoid influence the effect of image acquisition; Tool housing (7) is fixed on palm casing (9) that instrument support (6) go up to form the darkroom structure and can places and be used for the palm of online acquisition palmprint image, and instrument box (8) and palm casing (9) communicate, and play the effect of camera bellows;

During the work of online palmprint image capture instrument, at first make user's the palm centre of the palm downward, horizontal positioned is in palm casing (9), after guaranteeing normally to connect between computing machine and the Acquisition Instrument, open computing machine (5), the power supply of digital camera head (1) and light source (2), owing to adopted annular light source, so the light that shines on the palm through catoptron (3) is even and stable illumination condition, the palm that is illuminated reflects back into through catoptron (3) again becomes the palm image in the digital camera head, adjust the sighting distance and the focusing of digital camera head (1), so that obtain apparent palmprint image in computing machine (5), Fig. 2 is the typical palmprint image sample that obtains with utility model.

Claims

1, a kind of online palmprint image capture instrument, by digital camera head (1), light source (2), catoptron (3), communication interface (4), computing machine (5), instrument support (6), tool housing (7), instrument box (8) and palm casing (9) are formed, it is characterized in that: tool housing (7) is fixed on the instrument support (6), the interior support of instrument box (8) that forms the darkroom structure is equipped with digital camera head (1), light source (2) and catoptron (3), digital camera head (1) links through communication interface (4) and computing machine (5), and tool housing (7) is fixed on instrument support (6) and goes up and form the darkroom structure, the palm casing (9) that can place palm communicates with instrument box (8).

2, online palmprint image capture instrument as claimed in claim 1, it is characterized in that: digital camera head (1) is horizontally fixed on instrument box (8) the interior left side tool housing (7), light source (2) be installed in the interior digital camera head of instrument box (8) (1) around, user's palmmprint can be reflexed to catoptron (3) in the digital camera head (1) and tilt to be installed on the tool housing (7) of bottom surface in the instrument box (8) and Right Inboard.

3, online palmprint image capture instrument as claimed in claim 1 is characterized in that: communication interface (4) is the serial line interface of standard.

4, as claim 1,2 described online palmprint image capture instruments, it is characterized in that: the angle between plane mirror (3) and tool housing (7) bottom surface is 45 degree.

5, as claim 1,2 described online palmprint image capture instruments, it is characterized in that: light source (2) is the annular light source around digital camera head (1).