Image encoding device, electronic camera and recording...

Details Image encoding device, electronic camera and recording... Image encoding device, electronic camera and recording...

2005-04-05

2005-04-05

Couso, Jose L. (Department: 2621)

Image analysis

Image compression or coding

Adaptive coding

Reexamination Certificate

active

06876770

ABSTRACT:
The object of the present invention is to provide an image encoding device for designating a selected region constituting a region to which a greater quantity of information is allocated in an image. Thus, the present invention provides an image encoding device including a transformation component for converting an image into transformation coefficients by subjecting the image to a frequency decomposition. The image encoding device further includes a dividing component for dividing the transformation coefficients produced by the transformation component into a “selected region on the image” and a “non-selected region other than the selected region,” and an encoding component for encoding the transformation coefficients by allocating a greater quantity of information to the selected region than to the non-selected region. The image encoding device yet further includes a region adjustment component for controlling a bit allocation rate of the non-selected region by adjusting the area of the selected region.

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patent: 6128344 (2000-10-01), Aono et al.
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patent: 6707948 (2004-03-01), Cosman et al.
patent: 2000-358183 (2000-12-01), None
patent: 2001-230947 (2001-08-01), None

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