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US 2008/0166052 A1Published application
Face condition determining device and imaging device
OwnerToshinobu Hatanoinventor
Life of this patent
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Abstract
A face area detector detects a face area of a photographic subject in image data. A particular section detector detects a particular section in the face area. A motion detector extracts a difference between the image data of the particular section in a current frame of the image data and the image data of the particular section in the previous frame of the image data. A face condition determiner determines a face condition of the photographic subject based on the motion information of the particular section.
Claims34
A face condition determining device comprising:
- a brightness signal extractor for extracting a brightness signal of image data comprising continuous frame images;
- a resizing processor for resizing the brightness signal into a size demanded when a face area of a photographic subject in the brightness signal is detected;
- a memory in which the resized brightness signal for at least one frame is stored;
- a face area detector for reading the resized brightness signal from the memory and detecting the face area of the photographic subject in the brightness signal;
- a particular section detector for detecting a particular section in the face area;
- a motion detector for extracting a difference between the image data of the particular section in a current frame of the image data and the image data of the particular section in the previous frame of the image data read from the memory as motion information of the particular section;
- and
- a face condition determiner for determining a face condition of the photographic subject based on the motion information of the particular section.
5 more elements
A face condition determining device comprising:
- a memory in which image data is stored;
- a resizing processor for resizing the image data read from the memory into a size demanded when a face area of a photographic subject in the image data is detected and storing the resized image data again in the memory;
- a face area detector for detecting the face area of the photographic subject in the resized image data read from the memory;
- a motion vector detector for detecting a motion vector for each basic block in the image data read from the memory or the resized image data;
- a particular section motion information calculator for estimating a particular section in the face area and calculating a variation of the motion vector for each frame in the estimated particular section based on the motion vector for each basic block detected by the motion vector detector;
- and
- a face condition determiner for determining a face condition of the photographic subject based on the variation of the motion vector for each frame of the particular section.
4 more elements
Dependencies are inferred from the claim text.