摘要:
The invention to be provided relates to focusing control for obtaining a detected image necessary for image authentication. Through the focusing control, a lens is controlled to be located at an optimum position upon starting authentication. An image authenticating apparatus compares a detected image with a recorded image to carry out authentication using the detected image and the recorded image. The apparatus includes an image-capturing unit (camera unit) that obtains the detected image by capturing an image of a photographed subject, a display unit (image display unit) that displays the detected image on a screen displaying a target image showing the outline of a portion to be detected, and a controlling unit (image processing unit) that controls the lens of the image-capturing unit to locate the lens at a given focusing position relative to the photographed subject upon obtaining the detected image.
摘要:
The invention to be provided relates to focusing control for obtaining a detected image necessary for image authentication. Through the focusing control, a lens is controlled to be located at an optimum position upon starting authentication. An image authenticating apparatus compares a detected image with a recorded image to carry out authentication using the detected image and the recorded image. The apparatus includes an image-capturing unit (camera unit) that obtains the detected image by capturing an image of a photographed subject, a display unit (image display unit) that displays the detected image on a screen displaying a target image showing the outline of a portion to be detected, and a controlling unit (image processing unit) that controls the lens of the image-capturing unit to locate the lens at a given focusing position relative to the photographed subject upon obtaining the detected image.
摘要:
An image processing apparatus, an image processing method, and an image processing program are provided. The processing apparatus, method, and program relate to image processing executed in an AF camera, etc., and make clear a variation in an image displayed during focusing operation. The image processing apparatus includes an image-capturing element that puts out an image formed through an optical system, a focus controlling unit that controls the optical system to locate it at a focusing position, using the image obtained by the image-capturing element through the optical system, and an image processing unit that forms a pseudo-image during focusing operation of the optical system caused by the focus controlling unit, the pseudo-image showing a resolution variation enlarged to be greater than that of the image obtained by the image-capturing element.
摘要:
An image processing apparatus, an image processing method, and an image processing program are provided. The processing apparatus, method, and program relate to image processing executed in an AF camera, etc., and make clear a variation in an image displayed during focusing operation. The image processing apparatus includes an image-capturing element that puts out an image formed through an optical system, a focus controlling unit that controls the optical system to locate it at a focusing position, using the image obtained by the image-capturing element through the optical system, and an image processing unit that forms a pseudo-image during focusing operation of the optical system caused by the focus controlling unit, the pseudo-image showing a resolution variation enlarged to be greater than that of the image obtained by the image-capturing element.
摘要:
Disclosed are optical fibers for optical attenuation comprising a core and a cladding, wherein the cladding comprises two or more parts different from each other in their refractive indices and/or the attenuating dopant existence. By using the optical fibers for optical attenuation of the present invention, an optical attenuator which can effectively reduce the effect of cladding mode upon coupling of optical fibers and is excellent in characteristic stability can be manufactured at a low cost.