Canon Kabushiki Kaisha

Kenichi Kashiwagi

Yoshimi Kohayakawa

Isao Matsumura

Kyoji Sekiguchi

Masami Matsumoto

In a case of right and left eye fundus image sensing in a mass health examination, the alignment of an anterior segment of an eye to be examined is performed first (S). When the alignment of the anterior segment of eye is completed, image sensing light intensity is set (S). The alignment of a fundus segment of the eye to be examined is performed (S). Furthermore, an image of the fundus of the eye to be examined is sensed by a sensing switch being pushed after the completion of focus adjustment (S). Next, an optical base unit is moved so that the image sensing of another eye can be performed (S). A left or right eye detection unit detects that an eye for image sensing is changed with the move of the optical base unit. When the eye for image sensing is changed, an image sensing light intensity setting unit sets image sensing light intensity by adding a predetermined amount, or changing the sets image sensing light intensity according to a diameter of a pupil (S). Then, alignment and the like are performed similarly to Sand S(S, S), and an image of another eye is sensed.

Ophthalmic image sensing apparatus

Color information having R, G, B components is entered. When an optic nerve head contained in the color image information is designated by an image processor and region designation unit, an image compression unit encodes the B component, which is included among a plurality of color components in this designated region, at a compression rate lower than that in a region other than the designated region, and encodes the G component and the B component other than in the designated region at a higher compression rate.

Image processing apparatus and method

An image processing apparatus includes a memory for storing data representing a digital mask pattern for extracting only a plurality of two-dimensional discrete images from a first image, a generator for generating data representing a synthesized image including a plurality of discrete two-dimensional images from the first image with the digital mask pattern, a display for displaying the synthesized image and a second image in an overlapped state, and a memory for storing data representing first and second images so that a common image portion, common to the first and second digital images is stored therein.

Digital image processing apparatus for synthesizing an image form at

An ophthalmologic apparatus characterized by the provision of a device for introducing thereinto an eye fundus image at a point in time earlier than the point in time of view field measurment, a device for measuring the field of view of an eye to be examined, and a device for superposing the introduced eye fundus image and the output of the view field measuring a device, one upon the other, and compounding them.

Growing community of inventors

Kawasaki, Japan

Kenichi Kashiwagi