Patent ID: 8320998
Filing Date: 2012-11-27
Classification: A61B,G06K

Abstract:
1. A vein imaging apparatus comprising: a lens array including a plurality of light-receiving lenses disposed in an array; a near-infrared light emission source which is arranged at an end of the lens array and emits a near-infrared light to a part of a living body; an imaging element including: an image focus position detection unit for detecting a image focus position at imaging temperature based on the data for detecting positional displacement obtained from the positional displacement detection data generation region; a positional displacement amount estimation unit for estimating an amount of displacement of the image focus position at the imaging temperature based on the image focus position detected by the image focus position detection unit; and a pixel selection unit for selecting based on the amount of displacement, a pixel generating the vein image data used to generate vein image from among the plurality of pixels corresponding to one of the light-receiving lenses.