Four-dimensional human body recognition device

A human body recognition, four-dimensional technology, applied in the field of human body recognition, can solve the problems of discount of recognition effect, inability to detect the temperature of human body and objects, color distortion, etc., and achieve the effect of good recognition effect, recognition accuracy and effect.

Inactive Publication Date: 2014-08-06
SHENZHEN WEITESHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this existing human body recognition device does not process the infrared light in the environment, and the spectral lines of the whole band can reach the sensor chip at the back end through the lens group
However, this existing device does not have components for processing infrared light, and although its camera can form color images during the day, there will be color distortion, while at night it can only form black and white grayscale images; The temperature detection of the human body and objects cannot distinguish the human body from the surrounding objects and the environment well, resulting in a greatly reduced recognition effect

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0022] like figure 1 As shown, the present invention provides a four-dimensional human body recognition device, which includes a camera, and the camera includes an image sensor chip 1, a lens group 2 arranged on the optical path of the light incident side of the image sensor chip 1, and a lens group 2 arranged on the light incident side of the image sensor chip 1 An infrared cut filter (ICF filter) 3 on the optical path between the image sensor chip 1 and the lens group 2 . The image sensor chip 1 may be a CCD chip or a CMOS chip.

[0023] Since the body temperature of the human body is generally 36-37.5 degrees Celsius, according to the law of black body radiation, the central wavelength range of infrared radiation is 9.62-9.67 μm; while the range of room temperature from winter to summer is about 0-40 degrees Celsius, the center of infrared radiation The wavelength range is 9.54-10.94 μm, calculated according to the spectral line broadening of 7-8 μm, it is required that th...

Embodiment 2

[0027] The recognition effect of embodiment one is very good, but, because the cost of the ICF filter used in embodiment one is relatively high, especially the membrane material of wherein ICF filter and image sensor chip 1 often need to be specially customized or purchased from abroad, Its application is greatly restricted. In this regard, the present invention also provides the second embodiment with relatively low cost.

[0028] This embodiment is improved on the basis of common 3D cameras, such as image 3 As shown, a plurality of infrared LED lamps 4 are added on both sides of the 3D camera for supplementary light, so as to realize shooting of objects in a completely dark environment. Same as the above-mentioned embodiment 1, an infrared cut filter (ICF filter) 3 is also provided between the lens group 2 and the image sensor chip 1 to ensure the influence of infrared light on the image quality in daytime environment.

[0029] The cut-off wavelength of the ICF filter 3 u...

Embodiment 3

[0033] The third embodiment is consistent with the second embodiment above in terms of component composition, but some changes have been made in the selection of the ICF filter 3. The third embodiment uses an ICF filter 3 that can filter out visible light, thereby , Whether it is day or night, the camera system can only produce a black and white grayscale image.

[0034] In the third embodiment, the cut-off wavelength of the ICF filter 3 needs to bypass the wavelength of the infrared band emitted by the infrared LED lamp 4, or turn on and off the ICF filter 3 according to the ambient light intensity to bypass the infrared band of the infrared LED lamp reception. In this embodiment, the spectral characteristics of the light that reaches the image sensor chip 1 after passing through the ICF filter 3 are as follows Figure 5 As shown, the arrow at A in the figure represents the wavelength of the infrared LED lamp.

[0035] When the solution of this embodiment is implemented, a ...

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Abstract

The invention discloses a four-dimensional human body recognition device which comprises a camera. The camera comprises an image sensor chip, a lens set and an infrared cut-off filter, wherein the lens set is arranged on the part, on the outer portion of the light incident side of the image sensor chip, on a light path, and the infrared cut-off filter is arranged on the part between the lens set and the image sensor chip of the camera, on the light path. According to the four-dimensional human body recognition device, due to the fact that the infrared cut-off filter is arranged between the lens set and the image sensor chip, a human body temperature parameter can be added and detected in a traditional 3d image by selecting the proper infrared cut-off filter, the four-dimensional detection of the human body is achieved, four-dimensional recognition can be conducted, and compared with traditional 3D recognition, the four-dimensional human body recognition device is better in recognition accuracy and recognition effect.

Description

technical field [0001] The invention relates to the technical field of human body identification, in particular to a four-dimensional human body identification device. Background technique [0002] At present, existing human body recognition devices have begun to use three-dimensional imaging technology for recognition. The cameras used by existing human body recognition devices to extract human body features mainly include image sensor chips and lens groups located on the light incident side of the image sensor chips, etc. Components, the captured 3D human body images are used for back-end components or systems to perform 3D human body recognition. However, this existing human body recognition device does not process the infrared light in the environment, and the spectral lines of the whole band can reach the sensor chip at the back end through the lens group. However, this existing device does not have components for processing infrared light, and although its camera can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/33G06K9/00
Inventor 夏春秋
Owner SHENZHEN WEITESHI TECH
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