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Video processing device and video processing method

An image processing and image technology, applied in the direction of image data processing, image data processing, image communication, etc., can solve the problem of misjudging different people and so on

Inactive Publication Date: 2011-08-31
VICTOR CO OF JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the feature value of the face image is affected by the orientation of the face, even if the subject is the same person, if the orientation of the face changes too much, it may be misjudged as a different person.

Method used

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  • Video processing device and video processing method
  • Video processing device and video processing method
  • Video processing device and video processing method

Examples

Experimental program
Comparison scheme
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no. 1 Embodiment approach

[0044] (First Embodiment: Video Processing Device 100)

[0045] figure 1 It is an external view showing an example of the video processing device 100 . figure 1 (a) shows a digital still camera as the image processing device 100, figure 1 (b) shows a video camera as the video processing device 100 . The video processing device 100 is a portable device, and includes a main body 102 , an imaging lens 104 , an operation unit 106 , and a viewfinder 108 functioning as a display unit.

[0046] figure 2 It is a functional block diagram showing a schematic configuration of the video processing device 100 according to the first embodiment. Here, as the image processing device 100, the figure 1 (b) The camera shown. The purpose of the video processing device 100 of the present embodiment is to specify a facial image on the captured video data, and to derive and store a new feature value different from the stored feature value for the facial image, that is, the same person The fe...

no. 2 Embodiment approach

[0125] In the first embodiment described above, the storage control unit 178 derives the degree of similarity and compares it with the second threshold when determining whether or not the newly derived feature data is stored in the feature data storage unit 134 . In the second embodiment, the video processing device 400 that determines based on the angle of the face that has a large influence on the feature value has been described. Components substantially equivalent to those of the video processing device 100 described above are denoted by the same reference numerals and descriptions thereof are omitted.

[0126] (image processing device 400)

[0127] Figure 6It is a functional block diagram showing a schematic configuration of the video processing device 400 according to the second embodiment. The video processing device 400 includes an operation unit 106, an imaging unit 120, a data processing unit 122, an image holding unit 124, a viewfinder 108, a compression / expansio...

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Abstract

Disclosed are a video processing device and a video processing method that can derive appropriate feature quantities that make it possible to reliably identify faces without causing a user frustration. The video processing device (100) is characterized by comprising: an imaging unit (120) that acquires video; a position identification unit (170) that identifies one face image from the video; a face association unit (174) that associates the identified face image with face information that bundles together one or more feature quantities, said face information being stored in a memory unit; a feature quantity derivation unit (176) that derives a feature quantity for the identified face image; and a memory control unit (178) that compares the derived feature quantity with the one or more feature quantities in the face information associated with the identified face image, and if a prescribed condition is met, adds the derived feature quantity to the face information and stores same in a feature quantity memory unit (134).

Description

technical field [0001] The present invention relates to an image processing device and an image processing method for storing feature quantities for identifying a face image of a subject. Background technique [0002] In recent years, image processing devices such as digital still cameras and digital video cameras have been widely used in which a face image (image of a face) of a person specified by a user is specified from a generated image, and the focus is automatically adjusted for the specified face image. exposure. Such a video processing device derives the feature value of the face image from the face image specified by the user in advance, and stores it thereafter for specifying the face image. However, since the feature value of the face image is affected by the orientation of the face, even if the subject is the same person, if the orientation of the face changes too much, it may be misjudged as a different person. [0003] Therefore, a technique has been propose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G06T1/00H04N23/40
CPCH04N5/23293G06K9/00228H04N5/23219H04N5/232G06K9/00268H04N5/23229G06V40/161G06V40/168H04N23/611H04N23/80
Inventor 寺西康彦
Owner VICTOR CO OF JAPAN LTD