Measuring device for live data collection of face recognition products

Abstract

The present invention discloses a measuring device for collecting live data of face recognition products, including a headband, a support bracket connected to the headband, and a caliper connected to the bracket, wherein both ends of the caliper are mounted on the support bracket, an angle adjustment bracket is fixedly connected to the secondary vernier of the caliper, and a positioning device is mounted on the angle bracket; the positioning device locates the test point, the caliper is reset to zero, the caliper is moved, and the positioning device locates the second point, at which time the reading of the caliper is the distance between the two points. The measuring device for collecting live data of face recognition products of the present invention has a compact, simple and lightweight product structure design, and an easy-to-implement manufacturing process. The product has been verified to have excellent technical effects after long-term use, and overcomes the problems of low efficiency, low quality accuracy, and inability to survey and collect curved surfaces with large depths of traditional surveying and collection tools. The product has been verified to have a collection accuracy of plus or minus 0.2 mm after long-term use.

Description

Technical Field

[0001] The invention relates to a measuring device for collecting living body data of a face recognition product, and belongs to the field of face recognition. Background Art

[0002] Face recognition technology is mainly divided into three processes: face detection, feature extraction, and face recognition. The accuracy and efficiency of feature extraction are the premise and basis for the rapid implementation of the entire face recognition process. Feature extraction refers to the use of some numbers to represent face information. These numbers are the features to be extracted. Common face features are divided into two categories, one is geometric features and the other is representational features. Geometric features refer to the geometric relationship between facial features such as eyes, nose and mouth, such as distance, angle and area. The distance between the inner and outer corners of the eyes, nose wings, and mouth corners are all key physiological geometric features of the human body that need to be collected.

[0003] The main problems and disadvantages of the existing method of measuring living facial features with calipers are that the measuring operator needs to consider the safety of the person being measured and to avoid direct contact with the caliper and maintain a certain safe distance. These precautions will affect the efficiency of the operation and the measuring process is time-consuming. In addition, due to the existence of a safe distance between the caliper and the face and the fact that the face itself is a curved surface, the accuracy of the caliper measurement is greatly reduced. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a measuring device for collecting live data of face recognition products. The product has a compact, simple and lightweight structure, and the manufacturing process is easy to implement. Long-term use has proven that the product has excellent technical effects, overcoming the problems of low efficiency, low quality accuracy, and inability to measure and collect curved surfaces with great depths in traditional surveying and collection tools. The product has been verified by long-term use to have a collection accuracy of plus or minus 0.2 mm.

[0005] Technical solution: To solve the above technical problems, the measuring device for collecting live data of face recognition products of the present invention comprises a headband, a supporting bracket connected to the headband and a caliper connected to the bracket, both ends of the caliper are mounted on the supporting bracket, an angle adjustment bracket is fixedly connected to the secondary vernier of the caliper, and a positioning device is mounted on the angle bracket; the test point is positioned by the positioning device, the caliper is zeroed, the caliper is moved, and the positioning device positions the second point, at which time the reading of the caliper is the distance between the two points.

[0006] Preferably, the headband includes a flexible adaptive strap, a forehead curvature cover and a back head bandage connection cover connected to the flexible adaptive strap, the flexible adaptive strap includes a first skin-friendly strap located on the top of the head and a second skin-friendly strap located on both sides, the first skin-friendly strap connects the forehead curvature cover and the back head bandage connection cover, and the second skin-friendly strap connects the back head bandage connection cover and the support bracket.

[0007] Preferably, the positioning device is a light emitter.

[0008] Preferably, the angle adjustment device includes an adjustment plate and a fixing surface extending from the adjustment plate, the fixing surface is fixedly connected to the secondary cursor, a mounting hole is provided on the adjustment plate, a circular arc groove is provided with the mounting hole as the center, the positioning device is fixed on the mounting seat, the mounting seat is installed at the mounting hole by fasteners, the mounting seat extends with a boss, the boss is provided with an adjustment hole, the bolt passes through the circular arc groove and the adjustment hole in turn, and is fixed by a nut. When the mounting seat is adjusted to a suitable position, the nut is tightened to fix the angle of the positioning device.

[0009] Preferably, the fixing surface is provided with an S-shaped glue storage groove, and is fixed to the auxiliary cursor by glue in the glue storage groove.

[0010] Beneficial effects: The measuring device for collecting live data of face recognition products of the present invention has a compact, simple and lightweight structural design, an easy manufacturing process, and uses several common and versatile engineering plastics in the market, which is suitable for mass production and has excellent cost advantages. Long-term use has proved that the product has excellent technical effects, overcomes the problems of low efficiency, low quality accuracy, and inability to measure and collect large depths of curved surfaces in traditional surveying and acquisition tools, and the product has been verified by long-term use to have an acquisition accuracy of plus or minus 0.2mm (the accuracy error of caliper surveying in actual facial acquisition is usually affected by the characteristic curved surface of the face, the need to ensure a safe distance between the tool and the face, and is usually plus or minus 0.8mm or even more than 1mm), and has a wide range of measurement processes. Traditional caliper surveying and acquisition is affected by its own structural design and cannot measure and collect facial depth features, while this product uses optical surveying to measure and collect all features within the structural range. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention.

[0012] Figure 2 It is a structural schematic diagram of the angle adjustment device. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] like Figure 1As shown, the measuring device for collecting living data of face recognition products of the present invention comprises a headband, a supporting bracket 5 connected to the headband and a caliper 1 connected to the bracket 5, both ends of the caliper 1 are mounted on the supporting bracket 5, an angle adjustment bracket 3 is fixedly connected to the auxiliary cursor 2 of the caliper 1, a positioning device is mounted on the angle bracket 5, and the positioner is preferably a light emitter 4; the test point is positioned by the positioning device, the caliper 1 is zeroed, the caliper 1 is moved, and the positioning device positions the second point, at which time the reading of the caliper 1 is the distance between the two points.

[0015] In the present invention, the headband includes a flexible adaptive band, a forehead curvature cover and a back head bandage connection cover 7 connected to the flexible adaptive band, the flexible adaptive band includes a first skin-friendly band 8 located at the top of the head and a second skin-friendly band 6 located on both sides, the first skin-friendly band 8 connects the forehead curvature cover and the back head bandage connection cover 7, and the second skin-friendly band 6 connects the back head bandage connection cover 7 and the support bracket 5. The forehead curvature cover, the back head bandage connection cover 7 and the support bracket 5 are all made of several engineering plastics with strong versatility, and are suitable for mass production. The support bracket 5 includes a body, both ends of the body are extended with U-shaped ends, the vernier caliper 1 is clamped between the two U-shaped ends, and a clamping column is symmetrically extended in the body, and the clamping column is connected to the second skin-friendly band 6. Through the cooperation of the headband and the support bracket 5, the caliper 1 can be stably fixed on the head, which is more convenient for the measurement of the caliper 1.

[0016] In the present invention, the angle adjustment device comprises an adjustment plate and a fixed surface extending from the adjustment plate, the fixed surface is fixedly connected to the auxiliary cursor 2, and the fixed surface is provided with an S-shaped glue storage groove 31, and is fixed to the auxiliary cursor 2 by the glue in the glue storage groove 31. A mounting hole is provided on the adjustment plate, and an arc groove is provided with the mounting hole as the center of the circle. The positioning device is fixed on the mounting seat, and the mounting seat is mounted at the mounting hole by a fastener. A boss extends from the mounting seat, and an adjustment hole is provided on the boss. The bolt passes through the arc groove and the adjustment hole in turn and is fixed by a nut. When the mounting seat is adjusted to a suitable position, the nut is tightened to fix the angle of the positioning device.

[0017] When the present invention is in use, the product is adjusted and worn on the living body to be measured through a flexible adaptive strap, the light emitter 4 is turned on, the transmitter power is generated by the light generator to generate the illustrated blue light, which is projected onto the face of the living body to be measured, and the magenta light position A is reset to zero the digital display caliper 1 at this time, and then the auxiliary cursor 2 is moved to the next measured feature point B, so that the readings can be directly read on the digital caliper 1 to obtain the two-point mapping data. The light is used to measure the distance on the curved surface. The product's light emitter 4 is connected to the digital display caliper 1 device through the component angle adjustment bracket 3. The angle can be adjusted according to the actual human-computer interaction of the living facial features. During the operation of the product, the light is used to measure the feature data on the curved surface as the caliper 1 cursor moves. This solves the problem of large measurement errors and low efficiency caused by the traditional caliper 1 measurement due to its own design and the need to protect the measured living body from direct contact. The product can be worn once to measure all the curved surface distance values ​​within the range (the caliper 1 measurement is limited, and the position with a large depth difference on the face cannot be measured), and the accuracy is greatly improved compared to the caliper 1 measurement, with an accuracy of plus or minus 0.2mm, and the efficiency is also significantly improved. The data acquisition product adopts a flexible adaptive wearable design structure on the head, which is easy to wear, the flexible adaptive straps are skin-friendly and comfortable to wear, and the positioning is stable and reliable. The form of structural design is unique and novel, and has been verified to perform well in actual applications.

[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A measuring device for collecting live data of face recognition products, characterized in that: It includes a headband, a supporting bracket connected to the headband and a caliper connected to the bracket, two ends of the caliper are installed on the supporting bracket, an angle adjustment bracket is fixedly connected to the secondary vernier of the caliper, and a positioning device is installed on the angle bracket; the test point is positioned by the positioning device, the caliper is reset to zero, the caliper is moved, and the positioning device positions the second point, at which time the reading of the caliper is the distance between the two points; the positioning device is a light emitter; the angle adjustment device includes an adjustment plate and a fixed surface extending from the adjustment plate, the fixed surface is fixedly connected to the secondary vernier, a mounting hole is provided on the adjustment plate, an arc groove is provided with the mounting hole as the center, the positioning device is fixed on the mounting seat, the mounting seat is installed at the mounting hole by fasteners, a boss is extended from the mounting seat, an adjustment hole is provided on the boss, the bolt passes through the arc groove and the adjustment hole in turn, and is fixed by a nut, and when the mounting seat is adjusted to a suitable position, the nut is tightened to fix the angle of the positioning device.

2. The measuring device for collecting live data of face recognition products according to claim 1, characterized in that: The headband includes a flexible adaptive strap, a forehead curvature cover and a back head bandage connection cover connected to the flexible adaptive strap, the flexible adaptive strap includes a first skin-friendly strap located on the top of the head and a second skin-friendly strap located on both sides, the first skin-friendly strap connects the forehead curvature cover and the back head bandage connection cover, and the second skin-friendly strap connects the back head bandage connection cover and the support bracket.

3. The measuring device for collecting live data of face recognition products according to claim 1, characterized in that: The fixing surface is provided with an S-shaped glue storage groove, and is fixed to the auxiliary cursor through the glue in the glue storage groove.

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