Matsushita Electric Industrial Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Fujifilm Corporation

Olympus Optical Company, Ltd.

Minolta Company, Ltd.

Fujinon Corporation

Sakata Inkusu Kabushikikaisha

Panasonic Intellectual Property Corporation of America

Yoichi Miyake

Norimichi Tsumura

Katsuhiro Kanamori

Makoto Oishi

Mutsuko Nichogi

Toshiya Nakaguchi

Hiroshi Fujita

Tatsuo Igarashi

Harufumi Makino

Hideto Motomura

Takao Tsuruoka

Kazunari Nakamura

Kazuomi Sakatani

Tetsuya Itoh

Hiroshi Doshoda

Tadayoshi Hara

Takashi Sugaya

Norishige Tsukada

Soichi Kubo

Kiyoshi Kasutani

Kenji Okamori

Masatoshi Fukumoto

A body cavity observation apparatus includes a treatment tool to be inserted into a body cavity of a subject with an insertion tool as a guide, an observation section attached to an opening of a body wall of the subject, a monitor for displaying the body cavity captured by the observation section, and a marker position-detecting device for detecting a position of a marker part applied to the treatment tool or insertion tool from an image showing the body cavity captured by the observation section. The marker position-detecting device includes a pixel extracting device for extracting a group of pixels in the same color as the color of the marker part from the image and a calculation device for calculating a position of the barycenter of the group of pixels as a position of the marker part. The pixel extracting device extracts a pixel whose output value of a color component included in a color of the marker part among R, G, and B output values outputted from an image pickup device of the observation section is bigger than an output value of a color component that is not included in a color of the marker part by a predetermined threshold of the group of pixels.

Observation apparatus that detects position of a treatment tool from an image

According to a body cavity interior observing apparatus of the present invention, a non-tracked region to be displayed can be switched between a first non-tracked region and a second non-tracked region which is larger than the first non-tracked region, and in a search for an affected area in which it is preferable to track a treating instrument in order to consistently align the position of treating instrument to the central part of the screen, the first non-tracked region having a smaller non-tracked region is selected, while in a treatment of an affected area in which a treating instrument is moved in a wide range of area, the second non-tracked region having a larger non-tracked region is selected, thereby an appropriate monitor screen can be provided in searching for an affected area and in treating an affected area.

Body cavity interior observing apparatus

The present invention realizes a specular gloss simulation device which can accurately simulate specular glossiness of an image even if the image has a low density and low glossiness by measuring, in a given geometry, luminance of a sample having a base material and a colorant material layer formed on the base material and then simulating a specular reflection light amount in an other geometry from the measured luminance. A specular gloss simulation device is provided with a lower layer reflection light component calculating section for calculating a lower layer reflection light component, an internal reflection light component creating section for creating an internal reflection light component, a surface reflection light component creating section for creating a surface reflection light component, and a specular reflection light amount calculating section for obtaining a specular reflection light amount of the sample by adding up the components thus created by each section.

Specular gloss simulation device, specular gloss simulation method, control program for specular gloss simulation device and storage medium thereof

An enhancing degree for sharpness enhancing is determined as a parameter for enhancing the sharpness of the input image by using at least one of information about a subject included in the input image and information about the display for displaying the input image. By using the enhancing degree determined, color distribution is controlled on a first principal component analysis axis obtained by analysis based on a principal component analysis in a color space.

Apparatus and method for processing an image

An information display device and an information processor for performing, in the case where an image is delivered to information terminals such as a mobile phone varied in display, optimum image processing in accordance with performance of the display of each of the information terminals and content information including a material and an object distance contained in the image in addition to a framework of a color conversion by a color management technology. The information display device and the information processor are also capable of changing parameters of the image processing in accordance with a user image preference and an image texture input by the user.

Information processing system for displaying image on information terminal

When an image inputted is displayed on the display, determined is an enhancing degree as a parameter for enhancing the sharpness of the input image by using at least one of information about a subject included in the input image and information about the display for displaying the input image. By using the enhancing degree determined, color distribution is controlled on a first principal component analysis axis obtained by analysis based on a principal component analysis in a color space. Furthermore, the texture of the subject is magnified in size and again mapped onto the subject. Due to this, the input image can be enhancement-processed to a well texture feeling easy to view.

Image processor with sharpness enhancement

An image not subjected to color correction, gamma correction, MTF correction and others is used as an image to be subjected to Retinex image processing. Thus, a RAW image prepared only by converting an electric signal of a CCD image sensor by an A/D converter into a digital form is used as an image to be subjected to the Retinex processing. Predetermined gamma correction is performed after the Retinex processing. Thereby, Retinex algorithm substantially modeling functions of a retina and a cortex of a living body exhibits its original performance. The resolution of the original image is lowered, and processing is performed on an image thus produced to produce a blurred image. Then, the resolution of the blurred image is restored to the same resolution as that of the original image, and the Retinex processing is performed. Thereby, the Retinex processing can be performed without increasing memory consumption and extremely lowering an operation speed.

Image processing program product and device for executing Retinex processing

An image feature analysis section performs image feature analysis of an input image to generate an image feature quantity independent from image coordinates. An image content densification section information densifies the image feature quantity to generate a densified image feature quantity. An image generation section generates, based on the densified image feature quantity, an image in which the information content of the input image is densified.

Image processing method, image processing apparatus, and image processing program

An object is illuminated sequentially with light of wavelengths in respective narrow bands through a light guide in an electronic endoscope provided with an imaging device. The picture images are photoelectrically converted by the imaging device and are temporarily stored respectively in memories. The spectral distribution characteristics of the object are calculated by using spectral distribution calculating data and are displayed on a display.

Spectral diagnosing apparatus with endoscope

A method and image processing system is for reconstruction of an input image. The method for reconstruction of an input image includes a step of inputting image data (for example, densities) of at least two pixels nearest to a position of an additional pixel to be added to the input image and those of neighbor pixels located on extension lines of segments drawn between the position of the additional pixel and that of each of the nearest pixels of which the image data were inputted, and a step of estimating the value of the image data of the additional pixel on the basis of the inputted image data of at least two pair of the nearest and corresponding neighbor pixels by using an improved and simple algorithm which is newly proposed herein and called 'linear extrapolation and average method'. Further, the improved image processing system for performing the above described method for reconstruction of an input image includes an input portion having a first memory for selecting a desired image from a source of image signals, for effecting A/D conversion of the image signals of the selected image and for storing the A/D converted image in the first memory, an image enhancement portion having a second memory for reading the image data of the pixels of the input image stored in the first memory, for performing image enhancement processes of the input image and for storing the enhanced image in the second memory, a reconstruction processing portion having a reconstruction processing circuit and a third memory for reading the image data of the pixels stored in the second memory and for evaluating image data of additional pixels from the read-out image data by using the 'linear extrapolation and average method' in the reconstruction processing circuit and for storing the reconstructed image in the third memory and an output portion for outputting the reconstructed image stored in the third memory.

Method and image processing system for reconstruction of an image

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Sakura, Japan

Yoichi Miyake