Footprint morphological characteristic inspection technology

Abstract

The invention provides an inspection technology for identifying a human individual through human footprint morphological characteristics, the technology originates from criminal investigation technology, and the core is that human individual identification and authentication are achieved by researching and inspecting the footprint form and identifying and authenticating elements such as the practicing posture, the form and the posture of a footprint person. According to the technology, a mark making body and a trace belong to non-deterministic correlation, a comparison method of different footprint forms and footprint forming persons is suitable for correlation coincidence comparison, and an inspection object is a footprint form instead of a footprint image. When a human body learns to perform six-degree-of-freedom actions in a three-dimensional space, a footprint form which is formed by three kinds of force transaction grounds in the process of completing five supporting actions and contains position and direction characteristics is detected, and the critical values of experimental characteristics can be calculated and compared to complete the identification of the same person, the different person and the person of the same type. According to the technology, mutual transformation of walking posture, form, posture and footprint form characteristics can be carried out.

Description

Technical Field

[0001] The present invention provides an inspection technology for identifying a human individual through the morphological characteristics of human footprints. The technology originates from a certain criminal investigation technology. Based on the technology, the mutual transformation of walking posture, form, body shape and footprint morphological characteristics can be performed. The uses in the technical field include but are not limited to security identification, medical rehabilitation, entertainment industry, commodity manufacturing industry and many other industry fields. Background Art

[0002] The traditional footprint inspection method uses the surface shape of the footprint as the inspection feature, inspects and compares the surface image of the footprint (the sixth abridged version of the Cihai dictionary explains shape and appearance on P2133), and identifies shoe prints and barefoot prints. The purpose of the inspection is to compare and identify different prints. The formation mechanism of the print is the impression of the trace from top to bottom by the trace-making body. The trace-making body and the trace are deterministically related, and are suitable for the same comparison and identification inspection method.

[0003] The formation mechanism of footprints is that the human body walks in three-dimensional space with six degrees of freedom (a certain range). The human body's walking movement and the footprint shape formed (the sixth abridged version of the Cihai dictionary explains the shape and demeanor on P2133), the trace-making body and the trace are non-deterministically related (correlation matching - the correlation matching based on the standard of testing the arrangement and combination model of human walking posture, form, and body shape). The surface image of the footprint is affected by the different types of shoes and the changes in walking ground conditions during the formation process. The footprint shape is unstable and cannot meet the conditions of the same shape of different footprints; but different footprints are formed by the same person, and the person has not changed. The purpose of footprint inspection is to identify and authenticate the person who formed the footprint. Therefore, the study of footprint dynamics tests the footprint shape, identifies and authenticates the walking posture, form, and body shape of the person who formed the footprint to achieve the purpose of individual identification and authentication. Footprint dynamics tests the footprint identification and authentication of the person who formed the footprint, and tests the walking identification and authentication of the individual. The inspection features are the walking posture, form, and body shape of the human body, and the inspection and comparison method is the correlation matching.

[0004] The inventor has been studying footprint dynamics since 1975, testing footprint morphology, authenticating the person who formed the footprint, and testing the human body to identify and authenticate the individual. The scientific and technological achievements of human walking action-footprint dynamic morphology inspection won the first prize of Hebei Provincial Science and Technology Commission Science and Technology Progress in 1987 and the third prize of National Science and Technology Commission Science and Technology Progress. In 1992, he was sent by a certain department to Lyon, France to participate in the Interpol Academic Seminar. The "Footprint Dynamics Research" paper was recognized by the conference and recommended for display in the Interpol Hall. The "Footprint Dynamics Research" paper was published in the 2001.491 issue of "Interpol Review". In 1999, the National Natural Science Foundation of China established the project "Footprint Dynamics Image Individual Identification Research". In 2012, a breakthrough was made in the identification and authentication of the person who formed the footprint. A certain department held an evaluation meeting at the Footprint Dynamics Research Institute in Xiong County, Hebei Province. In 2013, a certain department held a national training course in Baoding City, Hebei Province. Summary of the invention

[0005] Footprint dynamics test, footstep identification and authentication, footstep formation, and the scientific theoretical basis for human walking individual identification and authentication. Two corresponding bases for footsteps and the formation of the person.

[0006] There are nine moving parts of the human body when walking: forehead, head, neck, shoulders, arms, trunk, hips, legs, and feet.

[0007] The human body is used to perform six degrees of freedom (a certain range) in three-dimensional space, and the nine moving parts correspond to the supporting movements of the nine parts of the foot. The moving ground forms the footprint shape: the forehead corresponds to the front edge of the footprint; the head corresponds to the push-off part; the neck corresponds to the toes; the shoulders correspond to the inner and outer edges of the sole of the footprint (width 0.8cm); the arms correspond to the inner and outer edges of the sole of the footprint; the trunk corresponds to the inner, middle and outer areas of the sole of the footprint; the buttocks correspond to the inner, middle and outer areas of the arch of the footprint and the heel; the legs correspond to the inner and outer edges of the heel of the footprint; the feet correspond to the rear edge of the footprint.

[0008] A large number of multi-content experimental statistics have been conducted over the years. In 1978, soldiers were subjected to walking experiments while wearing their current shoes, new shoes, old shoes, and other people's shoes. From 1982 to 1993, to 2003, to 2007, to 2008, wear experiments on fixed people wearing old cloth-soled shoes were continuously tracked for many years. In 1993, various ground and various action experiments were conducted at the crime scene. In April 2003, the body posture experiment was conducted on the detention center workers.

[0009] Figure 1 The schematic diagram shows that the nine parts of the foot move in the ground to form footprints. The footprints of each part of the ground are different in shape: compaction, plane addition and subtraction, three-dimensional concave and convex, change of original ground pattern, reflectivity, color, etc. The shape changes of each part reflect the force generated by the action - gravity, pressure, friction, and comprehensive force with similar amplitude. The three elements of each force (position - corresponding human body moving part, shape gravity center position, direction - shape horizontal long swing (left and right), vertical forward and backward shaking, large gravity center of gravity, jumping up and down, size - size of posture amplitude) reflect the walking posture, shape, posture - individual identification and authentication characteristics of the person. It breaks through the dynamic manifestation of the surface morphology (shape and appearance) characteristics of the footprint inspection without the corresponding human body moving part, and without the dynamic manifestation of movement force and posture.

[0010] Identification of habitual walking footprints. Habitual walking footprints are relatively stable and repeatable, and can be collected and compared for inspection.

[0011] The walking footprints have the spatial environment, light intensity and ground conditions of more than three consecutive straight steps on one side.

[0012] A single footprint has traces of five supporting movements of the foot: touchdown movement—inversion movement—vertical movement—evation movement—pushing off movement.

[0013] Footprint changes. The nine parts of the footprint change the ground shape: compaction, plane footprint addition and subtraction, three-dimensional footprint concavity, change the original ground condition (pattern, color, brightness, etc.).

[0014] The force that generates the shape of the footprint. The force that generates the shape of the ground that moves the footprint.

[0015] The gravity-to-anomalous ratio is large, and the anomaly center is in the middle.

[0016] Pressure - The degree of movement is large, the center of movement is not centered and has directionality (left and right, front and back).

[0017] Friction - generates force that moves more evenly in the same direction.

[0018] Comprehensive force - the movement force is uniform up and down, front and back, left and right, and has independent movement of each part, and the hip twist forms an independent shape of the arch of the foot.

[0019] The three elements of the force-generating action of the footprint part have positions, corresponding to the nine moving parts of the human body.

[0020] Direction (posture): Horizontal length - swing left and right, vertical length - swing forward and backward. Round and oval - jump up and down.

[0021] The inspection characteristics of footprints are the abnormal images of the ground presented by the footprint shape: compaction degree, addition and subtraction of flat footprint layers, convexity and concavity of three-dimensional footprints, changes to the original ground (pattern, color, reflectivity, etc.).

[0022] The nine parts of the footprint: position, direction and posture, force ratio - front and back, left and right, symmetry and asymmetry, and the dynamic trajectory generated by mutual connection.

[0023] Practice supporting single-foot balance, double-foot balance, and imbalance; the supporting part has a large (larger than 1 / 2) or small (smaller than 1 / 3) area.

[0024] The footprint feature inspection is performed in combination to generate an individual identification and authentication model.

[0025] The overall posture is consistent, the posture on one side is consistent, and the postures of the upper and lower body and the range of motion of each individual moving part are larger than the posture.

[0026] Body shape: the thickness of the head, neck, shoulders, torso, hips and thighs.

[0027] Footprint test results. Verify the critical value of the test feature (recognize or deny two adjacent data), and re-test with the same method and tools: whether the value is still within the critical value.

[0028] If the test result shows that the habitual posture exceeds three (including three) critical values, the test result will be downgraded to the same type of person.

[0029] If the test result has less than two (including two) critical values ​​of the walking posture characteristics and the other characteristics are relevant, the test result is that the same person is identified.

[0030] If the test result shows any difference in posture, shape or body shape, it means that the person is not the same.

[0031] Footprint comparison test. The imprint of the footprint (shoe print, barefoot print), the trace-making body and the trace are deterministically related, and the "identity comparison identification" method is adopted.

[0032] The trace-making body (human body's three-dimensional walking movement) of the footprint morphology (shape and expression) is non-deterministically related to the trace (footprint morphology), and is suitable for the correlation comparison test method.

[0033] Related matching comparison test method: The individual identification and authentication model generated by the combination of the characteristic habitual walking posture, shape, and body characteristics of the tested samples is matched with the individual identification and authentication model generated by the test material characteristics to generate the same person, deny the same person, or belong to the same type of person.

[0034] Identify habitual walking individuals, whose habitual walking posture has relatively stable and repetitive individual posture, form, and body shape. It can be collected and compared for inspection.

[0035] The walking posture includes walking on one side for more than three consecutive steps in the spatial environment, ground, and light, without any weight that affects the center of gravity of walking.

[0036] The human body's motor nervous system controls the movements of each motor part and generates coordinated habitual walking movements.

[0037] There are 5 supporting movement positions for human body practice: starting position - inversion position - vertical position - eversion position - push-off position.

[0038] Individual identification tests and comparison tests must be carried out in a certain body position. If they are carried out in any arbitrary body position, the comparison test loses its meaning.

[0039] If any posture is selected for comparison, the inspection feature cannot achieve the meaning of a large amplitude ratio for a certain posture and a small amplitude ratio for a certain shape.

[0040] Taking the random posture of the specimen as the standard, the same features are artificially added, so the five standard movement positions of the foot are the movement positions for identifying and authenticating an individual human being.

[0041] Habitual walking individual identification and authentication test characteristics.

[0042] Human body shape characteristics. Detect nine moving parts of the human body from the back and side.

[0043] Upright, leaning forward, or swaying; shoulders level or drooping; trunk straight, slanted, or leaning forward; hips wide and narrow; lateral vertical convex, horizontal length convex, back convex; legs bent inward and outward, knees concave and convex; feet abducted to large, medium or small sizes.

[0044] Characteristics of human body's walking posture.

[0045] The human body is used to swinging left and right, shaking forward and backward, jumping up and down, and twisting. The whole body is consistent, the upper and lower body are consistent, the left and right sides are consistent, and the movement of a certain moving part in a certain direction is extremely large.

[0046] Practice individual physical characteristics.

[0047] The fatness or thinness of the human body is reflected in the three combined parts of the head, forehead, shoulders and torso, and hips and thighs. If one part is thick, it is fat; if all three parts are thick, it is fat; if all three parts are thin, it is thin.

[0048] The results of the individual identification and authentication test.

[0049] Determine the critical value characteristics, the test data of the same characteristics of the test sample and the sample are critical (the minimum data unit ±2), and the same detection method and tools are used to re-test to obtain the verification result: it still belongs to the critical data characteristics and is classified into different characteristic data.

[0050] Identify the same person: the test result feature data is consistent (including 1-2 critical value features of walking posture).

[0051] Denying the same person: The test result characteristics contain more than one difference in human body shape and body shape characteristics.

[0052] People of the same type: If the test results show that the walking posture feature data have three or more critical values, and there is no difference in the human body shape or body shape feature data, they are identified as people of the same type.

Claims

1. A verification technology for identifying a human individual through human footprint morphological characteristics, which can transform walking posture, form, body shape and footprint morphological characteristics into each other, including the definition of footprint morphological characteristics, the characteristics of footprint morphological characteristics verification, habitual walking, nine moving parts of the human body's habitual walking, five supporting movements of the habitual walking foot, a logical method for comparing and verifying footprint morphological characteristics, a static coordinate system, a dynamic coordinate system, and the human body's habitual walking form and posture characteristics.

2. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The footprint morphological characteristics are defined as the human body's habit of walking in three-dimensional space with six degrees of freedom (a certain range), nine moving parts corresponding to the supporting movements of nine parts of the foot, and the moving ground forms the footprint morphology.

3. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The characteristic of the footprint morphological feature inspection is that it should use relevant matching comparison, and the ground morphology of the human walking foot movement is non-deterministically related to the person who formed the footprint.

4. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The habitual walking is a walking posture with a relatively stable and repetitive individual posture, form, and body shape. The habitual walking posture has more than three consecutive steps in the spatial environment, ground, and light intensity on one side of the walking, and there is no weight that affects the center of gravity of walking.

5. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The human body has nine moving parts when walking: forehead, head, neck, shoulders, arms, torso, buttocks, legs, and feet. The nine moving parts correspond to the supporting actions of nine parts of the foot. The forehead corresponds to the front edge of the footprint; the head corresponds to the push-off part; the neck corresponds to the toes; the shoulders correspond to the inner and outer edges of the sole of the footprint (0.8 cm wide); the arms correspond to the inner and outer edges of the sole of the footprint; the torso corresponds to the inner, middle and outer areas of the sole of the footprint; the buttocks correspond to the inner, middle and outer areas of the arch of the footprint and the heel of the footprint; the legs correspond to the inner and outer edges of the heel of the footprint; the feet correspond to the rear edge of the footprint.

6. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The five supporting movements are: starting movement - inversion movement - vertical - eversion movement - push-off movement.

7. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The described logic method for comparing and checking the footprint morphological features is that the dynamic coordinate system of the five supporting movements of a person's habitual walking feet is a related movement to the static coordinate system of the ground, and the foot movement reflects the movement posture, morphology, and body shape characteristics of each moving part of the human body, and generates a personal identification and authentication model by arrangement and combination. The individual identification and authentication model generated by the arrangement and combination of the habitual walking posture, morphology, and body shape characteristics of the inspected sample features is consistent with the individual identification and authentication model generated by the inspection material features, and generates the same person, denies the same person, or belongs to the same type of person. The relevant compliance of the inspection result feature data (including 1-2 habitual walking posture critical value features) identifies the same person, the inspection result feature has more than one human morphology and body shape feature difference data to deny the same person, and the inspection result habitual walking posture feature data has more than three (including three) critical values, and there is no difference in human morphology and body shape feature data, and it is identified as belonging to the same type of person.

8. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The static coordinate system is the moving ground of the usual walking feet (moving point to static coordinate system) - absolute motion: compaction of the moving ground image, addition and subtraction of flat footprint layers, convexity and concavity of three-dimensional footprints, pattern, color, brightness, compaction, and movement of the original moving ground, etc.

9. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The dynamic coordinate system is the relative motion of the foot support part during walking to the foot motion coordinate system: the force generated by the dynamic point of the foot support part and the foot motion coordinate system (corresponding to the human body's movement posture) - relative motion: gravity - the main action of jumping up and down; pressure - left and right swinging, front and back shaking main action, friction - large movements in a certain direction left and right or front and back, comprehensive force - up and down movements, left and right swinging movements, front and back shaking forces, and amplitudes are similar and relatively uniform (twisting). The morphological characteristics of footprints formed by relative motion: position - corresponding to the nine parts of the footprint morphology formed by the nine moving parts of the human body, and the center of gravity position of each part. Direction - the movement posture of the footprint part morphology: wide left and right - swinging, long front and back - shaking, round or elliptical - jumping up and down, continuous and disconnected, dynamic trajectory.

10. The inspection technology for identifying a human individual through the morphological characteristics of human footprints according to claim 1, characterized in that: The habitual walking morphology and posture characteristics of the human body are obtained by detecting nine moving parts of the human body from the back and side. The morphological characteristics include upright, forward leaning and swaying, flat shoulders and drooping shoulders, straight, crooked, and forward leaning trunk, wide and narrow hips, convex side vertical, convex horizontal length, convex back, inward and outward bending of legs, concave and convex knees, large, medium and small foot abduction, etc. The posture characteristics include the human body's habit of swaying left and right, rocking back and forth, jumping up and down, twisting, overall consistency, consistency between the upper and lower body, consistency between the left and right sides, and a particularly large amplitude of movement in a certain direction of movement.

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