CN201290678Y

CN201290678Y - Craniofacial deflection-angle marking device

Info

Publication number: CN201290678Y
Application number: CNU2008202189111U
Authority: CN
Inventors: 兰玉文
Original assignee: No213 Inst Tieling Public Security Bureau
Current assignee: No213 Inst Tieling Public Security Bureau
Priority date: 2008-11-06
Filing date: 2008-11-06
Publication date: 2009-08-19
Anticipated expiration: 2018-11-06

Abstract

The utility model relates to a craniofacial deflection angle calibrating instrument which comprises a bracket. A cranial fixer is connected with the front end of the bracket, and is provided with a vertical upright stanchion which is provided with an internal thread hole along the axial line. A pushing screw rod is screwed in the internal thread hole. The lower end of the upright stanchion is sheathed with a bearing which is connected with a U-shaped skull clamp with a downward opening. The lower end of the U-shaped skull clamp is provided with through holes in the same horizontal line. An ear-hole fixing rod penetrates into the through holes, and the inner end of the ear-hole fixing rod is provided with an ear plug. The lower end of the U-shaped skull clamp is provided with fastening screws of the ear-hole fixing rod. The upper part of the U-shaped skull clamp is provided with a horizontal circular disc with circumferential angle scales. Pointers are arranged above the upright stanchion and the horizontal circular disc. A reflector sheet is arranged in the front of the U-shaped skull clamp, and a plane of the reflector sheet is parallel with the plane in which the U-shaped skull clamp is positioned. When the utility model is used for taking two-dimensional photos of the cranial and facial of people, the utility model can accurately calibrate the horizontal deflection angles of the cranial and facial of people, and accurately take the two-dimensional photos of the cranial of the people by a camera from different horizontal deflecting angels.

Description

Demarcating instrument for deflecting angle of cranium face

Technical field

This utility model relates to a kind of photograph auxiliary device, the particularly a kind of demarcating instrument for deflecting angle of cranium face that can demarcate skull and face X deflection angle when the skull of taking the people and face photo.

Background technology

Skull surface and face the people have corresponding Forensic Anthropology index point, and the corresponding Forensic Anthropology index point of skull surface and face has dependency relation, and according to this dependency relation, the someone proposes to identify the photographic superimposition method of cranium body source.

The photographic superimposition method is to allow the two dimensional image of skull and missing person's photo coincide identify the method for cranium body source by the dependency relation of the Forensic Anthropology index point on the 2-dimentional photo of skull and face.

Identify cranium body source with the photographic superimposition method, study, obtain the dependency relation of Forensic Anthropology index point of the 2-dimentional photo of skull and face.Research, when obtaining the dependency relation of Forensic Anthropology index point of 2-dimentional photo of skull and face, gather the 2-dimentional photo of the skull surface and the face of certain statistical mathematics quantity, on photo, indicate the Forensic Anthropology index point then, measure the data of correlating markings point again, obtain dependency relation after handling by statistics.

Because missing person's photo has different X deflection angles, when identifying cranium body source, to be adjusted to the angle identical to the X deflection angle of skull with the horizontal shooting angle of photo with the photographic superimposition method, again because the Forensic Anthropology index point of skull surface and face is not on same plane, but on people's skull and the male and female face on the face, at different X deflection angles, the dependency relation of the Forensic Anthropology index point of the 2-dimentional photo of skull and face differs greatly, and can only identify with the dependency relation of the Forensic Anthropology index point of the skull surface of this angle and face, so need the dependency relation of Forensic Anthropology index point of the 2-dimentional photo of the skull of a series of varying level deflection angles and face when identifying cranium body source with the photographic superimposition method for the photo of varying level deflection angle.

In order to study, obtain the dependency relation of Forensic Anthropology index point of the 2-dimentional photo of the skull of different X deflection angles and face, will absorb at the skull of different X deflection angles and the 2-dimentional photo of face, when the 2-dimentional photo of skull that absorbs different level angle degree and face, to be placed in camera site before the photographing unit to skull and face by different X deflection angles exactly, Forensic Anthropology index point at the 2-dimentional photo of the skull of the certain statistical mathematics quantity of each X deflection angle collection and face, measure the data of correlating markings point, obtain the dependency relation of Forensic Anthropology index point of the 2-dimentional photo of the skull of this X deflection angle and face after learn handling by statistics, repeat the method, can obtain the dependency relation of Forensic Anthropology index point of the 2-dimentional photo of the skull of a series of varying level deflection angles and face.

When taking people's skull and face photo, can will greatly influence the accuracy of statistical data to people's skull and face by the camera site that X deflection angle is placed in before the photographing unit exactly for above-mentioned purpose.For the correct dependency relation of the Forensic Anthropology index point of the 2-dimentional photo of the skull of studying, obtain the varying level deflection angle and face, will take people's the skull and the 2-dimentional photo of face at X deflection angle accurately.In the prior art, when the 2-dimentional photo of the skull of taking the people and face, can not demarcate people's the skull and the device of face X deflection angle exactly.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned deficiency, propose a kind of when the 2-dimentional photo of the skull of taking the people and face, the time can demarcate people's the skull and the demarcating instrument for deflecting angle of cranium face of face X deflection angle exactly.

This utility model is realized with the following method.

Demarcating instrument for deflecting angle of cranium face has support, support is by levelling bench, the horizontal gird composition that links to each other with the column upper end with perpendicular column of levelling bench and rear end on the levelling bench, the front end of horizontal gird is connected with the head holder, the head holder has vertical column, column has the internal thread hole along axis, be rotary with fastening screw in the internal thread hole, the lower end of column is with bearing, be connected with the U-shaped skull clamp that Open Side Down on the bearing, there is the through hole on same horizontal line the lower end of U-shaped skull clamp, be installed with ear eye fixed bar in the through hole, there is earplug the inner of ear eye fixed bar, there is the holding screw nail of ear eye fixed bar the lower end of U-shaped skull clamp, the top of U-shaped skull clamp has and has the graduated centrifugal disc of circumference angle, on the column, there is pointer the centrifugal disc top, and there is reflex reflector lens the front on the U-shaped skull clamp, the plane of reflex reflector lens and U-shaped skull clamp place plane parallel.

Head holder of the present utility model fixedly people's skull and people's head is used to take the skull of different angles and the 2-dimentional photo of face.When fixing people's skull and people's head, cooperate zero degree point plane reference chi to use, people's skull and people's head are fixed on the zero degree point plane.

Zero degree point plane reference chi has the semi-disc with semi-circumference angle index, circle centre position at semi-disc has axle, the movable pin that hangs down is arranged on the axle, the slip chi parallel with this diameter arranged on the diameter limit of semi-disc, the diameter limit of semi-disc is connected with and the vertical fixation measuring limb in the diameter limit of semi-disc, also be connected with on the slip chi with the vertical slip in the diameter limit of semi-disc and measure limb, the fixation measuring limb is parallel with the diameter limit of semi-disc with the outer end line of the measurement limb that slides.

When taking different angles people's skull 2-dimentional photo, there is sign the people's of Forensic Anthropology index point skull to be placed in the U-shaped skull clamp of head holder, slip ear eye fixed bar, the earplug of ear eye fixed bar the inner is inserted in the earhole of skull, screw the holding screw nail, skull is hung in the U-shaped skull clamp, get zero degree point plane reference chi, the fixation measuring limb of zero degree point plane reference chi and outer end that slide to measure limb are against point before the metopion of skull and the jaw respectively, the swing skull, hang down pin in vertical and when parallel with the diameter limit of semi-disc in activity, the rotation fastening screw, the rotation fastening screw is against the crown of skull, this moment, skull was on zero degree point plane, horizontally rotate the U-shaped skull clamp, allow pointer refer at different circumference angle indexs, skull is on the different X deflection angles, place photographing unit at this X deflection angle, shooting angle with reflex reflector lens view camera scalable photographing unit is consistent with the X deflection angle at skull place, after taking pictures, can obtain the skull photo on the varying level deflection angle.

When taking different angles people's head 2-dimentional photo, there is sign the people's of Forensic Anthropology index point head to be placed in the U-shaped skull clamp of head holder, slip ear eye fixed bar, the earplug of ear eye fixed bar the inner is inserted in people's the head earhole, screw the holding screw nail, get zero degree point plane reference chi, the outer end of the fixation measuring limb of zero degree point plane reference chi and the measurement limb that slides is against the glabella point and the gnathion of people's head respectively, swing people's head, when the vertical pin of activity is parallel with the diameter limit of semi-disc, the rotation fastening screw, the rotation fastening screw is against people's the head crown, this moment, people's head was on zero degree point plane, horizontally rotate the U-shaped skull clamp, allow pointer refer at different circumference angle indexs, people's head is on the different X deflection angles, place photographing unit at this X deflection angle, shooting angle with reflex reflector lens view camera scalable photographing unit is consistent with the X deflection angle at people's head place, after taking pictures, can obtain the head photo of the people on the varying level deflection angle.

When the 2-dimentional photo of the skull of taking the people and face, can demarcate people's the skull and the X deflection angle of head with this utility model exactly, available camera is shot people's the skull of varying level deflection angle and the 2-dimentional photo of head exactly.

Below in conjunction with accompanying drawing, the utility model is further described.

Description of drawings

Fig. 1 cuts open sketch map according to the master office of looking of a kind of demarcating instrument for deflecting angle of cranium face of invention scheme proposition of the present utility model;

Fig. 2 is the schematic side view of Fig. 1;

Fig. 3 is the schematic top plan view of Fig. 1;

Fig. 4 is that sketch map cuts open in I place amplification office among Fig. 1;

Fig. 5 cuts open sketch map according to the master office of looking of a kind of zero degree point plane reference chi of invention scheme proposition of the present utility model;

Fig. 6 is the schematic side view of Fig. 5.

The specific embodiment

In Fig. 1～4, demarcating instrument for deflecting angle of cranium face has support 3, support is by levelling bench 4, horizontal gird 6 compositions that link to each other with the column upper end with perpendicular column 5 of levelling bench and rear end on the levelling bench, the front end of horizontal gird is connected with head holder 7, the head holder has vertical column 8, column has the internal thread hole 9 along axis, be rotary with fastening screw 10 in the internal thread hole, the lower end of column is with ball bearing 11, be connected with the U-shaped skull clamp 12 that Open Side Down on the bearing, there is the through hole 13 on same horizontal line the lower end of U-shaped skull clamp, be installed with ear eye fixed bar 14 in the through hole, there is earplug 15 the inner of ear eye fixed bar, there is the holding screw nail 16 of ear eye fixed bar the lower end of U-shaped skull clamp, and the top of U-shaped skull clamp has and has the graduated centrifugal disc 17 of circumference angle, on the column, there is pointer 18 the centrifugal disc top, there is reflex reflector lens 19 front on the U-shaped skull clamp, the plane of reflex reflector lens and U-shaped skull clamp place plane parallel.

Zero degree point plane reference chi has the semi-disc 20 with semi-circumference angle index, circle centre position at semi-disc has axle 21, the movable pin 22 that hangs down is arranged on the axle, the slip chi 23 parallel with this diameter arranged on the diameter limit of semi-disc, the diameter limit of semi-disc is connected with and the vertical fixation measuring limb 24 in the diameter limit of semi-disc, also be connected with on the slip chi with the vertical slip in the diameter limit of semi-disc and measure limb 25, the fixation measuring limb is parallel with the diameter limit of semi-disc with the outer end line of the measurement limb that slides.

Claims

1. demarcating instrument for deflecting angle of cranium face, it is characterized in that: support is arranged, support is by levelling bench, the horizontal gird composition that links to each other with the column upper end with perpendicular column of levelling bench and rear end on the levelling bench, the front end of horizontal gird is connected with the head holder, the head holder has vertical column, column has the internal thread hole along axis, be rotary with fastening screw in the internal thread hole, the lower end of column is with bearing, be connected with the U-shaped skull clamp that Open Side Down on the bearing, there is the through hole on same horizontal line the lower end of U-shaped skull clamp, be installed with ear eye fixed bar in the through hole, there is earplug the inner of ear eye fixed bar, there is the holding screw nail of ear eye fixed bar the lower end of U-shaped skull clamp, and the top of U-shaped skull clamp has and has the graduated centrifugal disc of circumference angle, on the column, there is pointer the centrifugal disc top, there is reflex reflector lens front on the U-shaped skull clamp, the plane of reflex reflector lens and U-shaped skull clamp place plane parallel.