Hard disk recorder with human face image capturing function and method for capturing a human face image

A technology of hard disk video recorder and face image, applied in image communication, computer parts, color TV parts and other directions, can solve the problems of video recording occupying a large amount of hard disk space, different video quality, wasting hard disk space and manual labor, etc. Achieving the effect of avoiding blurred and high-quality monitoring images

Inactive Publication Date: 2009-10-14
SHANGHAI ISVISION INTELLIGENT RECOGNITION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stored video recordings take up a lot of hard disk space; it is often necessary to export data from the hard disk or add a new hard disk;
[0004] 2. The utilization rate of video recording is low, and manual video playback is often required, and photos are intercepted again for use; while wasting hard disk space, a lot of manual labor is required;
[0005] 3. The video compression rates of hard disk video recorders from various manufacturers on the market are different, resulting in different video quality, which directly leads to blurred and distorted key photos captured

Method used

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  • Hard disk recorder with human face image capturing function and method for capturing a human face image

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Experimental program
Comparison scheme
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Embodiment 1

[0038] see figure 1 , the present invention discloses a hard disk video recorder with a face image capture function, which includes a face image capture system, and the face image capture system includes: a camera unit 11, an image acquisition unit 12, a cache unit 13, a person Face real-time comparison unit 14 , image real-time screening unit 15 , data processing unit 16 , second storage unit 17 , and face post-comparison unit 18 . Each unit is described separately below.

[0039] 【camera unit】

[0040] The camera unit 11 is used to acquire image information; it may be a device such as a surveillance camera, which provides an image source for the image acquisition unit 12 .

[0041] 【Image acquisition unit】

[0042] The image acquisition unit 12 is connected with the camera unit 11 to capture the image information acquired by the camera unit 11 in real time, and intercept the face image therein.

[0043] The image acquisition unit 12 temporarily stores the intercepted fac...

Embodiment 2

[0066] The difference between this embodiment and Embodiment 1 is that in this embodiment, the system also includes a time recording unit, which is used to record the time when each person represented by each face image appears; when the same person is detected multiple times, Record the time of the person's appearance separately. The recording method can be realized by establishing a photo database, and the data storage capacity is very small.

[0067] This solution can not only obtain face information, but also obtain the time point when the person appeared.

Embodiment 3

[0069] The difference between this embodiment and Embodiment 1 is that in this embodiment, the system only includes an image acquisition unit 12, a cache unit 13, a face comparison unit 14, and an image screening unit 15 (it may also include a data processing unit 16) , without including the camera unit 11 and the storage unit 17 , the system is used in conjunction with other systems, and the other systems include the camera unit 11 and the storage unit 17 .

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Abstract

The invention discloses a hard disk recorder with human face image capturing function and a method for capturing a human face image. The hard disk recorder comprises a human face image capturing system. The human face image capturing system comprises an image acquisition unit, a first storage unit, a human face real-time comparison unit, an image real-time screening unit, a second storage unit and a human face afterward comparison unit, wherein the image real-time screening unit screens a human face image in the first storage unit according to the similarity calculated by the human face real-time comparison unit, and keeps only one human face posture image for the same person. The human face afterward comparison unit selects human face images which have similarities, with human face images set in the second storage unit, smaller than the set similarity, and stores the human face images into the second storage unit. The hard disk recorder and the method directly complete acquisition work of human face photographs, reduce workload of manually playing back, screening and capturing.

Description

technical field [0001] The present invention relates to a hard disk video recorder, in particular to a hard disk video recorder with the function of capturing human face images, and at the same time relates to a method for capturing human face images of the above hard disk video recorder. Background technique [0002] In reality, some key places need to monitor and store images, and DVRs are usually selected for video storage. However, traditional DVRs have the following problems: [0003] 1. The traditional hard disk video recorder produces about 850MB of video per hour, and the video stored for three months is about 1793GB under normal circumstances. The stored video recordings take up a lot of hard disk space; it is often necessary to export data from the hard disk or add a new hard disk; [0004] 2. The utilization rate of video recording is low, and manual video playback is often required, and photos are intercepted again for use; while wasting hard disk space, a lot o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/76G06K9/00
Inventor 唐毅沈璨
Owner SHANGHAI ISVISION INTELLIGENT RECOGNITION TECH
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