Hitachi Medical Corporation

Oki Electric Industry Co., Ltd.

Oki Data Corporation

Hitachi, Ltd.

Ando Electric Company

Yoshihiro Goto

Akira Saito

Tetsu Koyama

Hisatoshi Saito

Takashi Shirahata

Shingo Shimada

Hiroki Haruyama

Kazuhiro Sato

Tetsuo Nakazawa

Hiroshi Takagi

Tomohiro Nagao

Hisako Nakamura

Yukio Ito

Akio Nakamura

Osamu Miyazaki

Toru Nakagawa

Hiroto Kokubun

Kuniyoshi Nakashima

Hiromitsu Hayashi

Takuya Kitta

Osamu Sasahara

Tetsuya Okudaira

Masashi Fujii

Osamu Takiguchi

Takayuki Kadomura

Ken Ishikawa

Yudai Ogawa

Tetsushi Honda

Yoshikazu Okudo

Suzushi Kusano

Toshihiro Ogura

Masao Ooi

Dai Shinohara

Makie Saito

Toner cartridge

Image drum cartridge

A development unit according to an embodiment may include a developer carrier configured to carry developer on a surface thereof; a layer regulation member being elongate in a direction and provided facing the developer carrier; and a frame supporting the developer carrier and the layer regulation member. The layer regulation member comprises a metal blade that contacts the developer carrier and a support member attached to the frame and supporting the blade. A free length of the blade at an end portion in a longitudinal direction of the layer regulation member is shorter than a free length of the blade at a center portion in the longitudinal direction of the layer regulation member.

Development unit, image formation unit, and image formation apparatus including developer carrier and layer regulation member

To provide an image processing device, a region extraction method, and an image processing method capable of extracting a target region based on minute variations in a concentration value that exist locally and clearly displaying the extracted target region, the image processing device extracts a blood vessel region A from an image to extract a region where a CT value is smaller than an average concentration value of the blood vessel region A as a soft plaque region B. For unextracted soft plaque, a pixel pair is set in a difference region between the region A and the region B, and for each pixel Pj between the pixel pairs, whether or not the pixel value is even smaller than a value slightly smaller than the CT value of the pixel pair is determined. Hence, a portion where a pixel value slightly varies locally is extracted as soft plaque.

Image processing device and region extraction method

A calculation unit generates a depth image corresponding to a first three-dimensional image with respect to a region of interest and sets a first image region based on a depth gradient of the depth image. The calculation unit moves the origin of a projection line to the near side or far side in the projection line direction by an amount of movement B for a pixel in the first image region, constructs a depth image based on the moved origin of the projection line in the first image region, sets a second image region based on the depth gradient of the depth image based on the moved origin of the projection line in the first image region, sets the second image region as the first image region, and repeats these processes. Once end conditions are satisfied, the calculation unit constructs a second three-dimensional image based on the moved origin of the projection line.

Three-dimensional image construction apparatus and three-dimensional image construction method

In order to provide an image processing apparatus etc. that can precisely recognize multiple regions with density value fluctuation in an image with a simple operation in a process of recognizing a specific region from the image, a CPU performs threshold determination for a target pixel and the multiple pixels surrounding the target pixel (determination range) included in a three-dimensional original image by applying predetermined threshold conditions and specifies the target pixel as a recognized pixel when the threshold conditions are satisfied. The threshold conditions preferably apply different thresholds between a pixel on the same flat surface with the target pixel and a pixel on the other flat surface. By successively moving the target pixel (determination range) and repeating the above-mentioned threshold determination, it is performed also for the entire three-dimensional original image. This allows an operator to more precisely recognize a tissue with density value fluctuation such as a cartilage automatically without setting a starting point.

Image processing apparatus and image processing method, configured to apply threshold conditions to specify target pixel

An image processing devicedivides a hollow organextracted from a volume imageusing a plurality of planesincluding an arbitrary eye vectoror a plurality of planes along the centerline of the hollow organtransforms the coordinates of a point inside the hollow organalong a predetermined convex surface set outside the hollow organon each plane, and gives a pixel value of an original position to a corresponding point after the coordinate transformation. Then, a folded volume image is generated by combining the respective planesin a reverse procedure of the division procedure, and a shaded folded three-dimensional imageis generated by projecting the folded volume image to a projection surface from the arbitrary viewing direction and is displayed on a display device

Image processing device and image processing method

In order to provide an image processing device which can select and apply an optimal processing algorithm among a plurality of processing algorithms depending on a part of a processing target image and a processing purpose, reference characteristic curve data is calculated in which pixel values are integrated centered on a centroid of a region of interest for a reference image, and the reference characteristic curve data and a processing algorithm according to a processing purpose are stored in advance in an algorithm tablein correlation with each other at least for each part.

Provided is, for example, a medical image display device which automatically create and display an image suitable for radiographic image interpretation of interosseous tissue or a 3-dimensional image of a vertebral body separated one by one with high precision. A medical image processing device () creates a first conversion image (in step (S)), extracts a first intervertebral disc region from the first conversion image (in step (S)), and specifies two coordinates (P, P) from among the pixels included in the first intervertebral disc region (in step (S)). Next, the medical image processing device () creates a second conversion image (in step (S)), extracts a second intervertebral disc region (in step (S)), and specifies two coordinates (Q, Q) from the second intervertebral disc region (in step (S)). Next, the medical image processing device () calculates a reference curved surface including at least four feature points of the coordinates (P, P, Q, Q) on a per intervertebral disc basis and, based on the reference curved surface, creates a display image (in step (S)), and displays the display image (in step (S)).

Medical image processing device and medical image processing method

A development device includes a regulation member partially defining a developer room and configured to regulate the thickness of a developer layer on a developer carrier, the regulation member including a regulation edge facing the developer carrier to control the thickness of the developer layer on the developer carrier, and an end facing an inner wall surface of the developer room; a first seal member attached to the inner wall surface of the developer room at a position facing the end of the regulation member; and a second seal member attached to the regulation member at a portion in the vicinity of the end of the regulation member and being in contact with the first seal member to seal between the first seal member and the end of the regulation member. The second seal member is lower in hardness than the first seal member.

Development device and image formation apparatus

In a medical image display device for displaying a hollow organ of an examinee as a panoramic image, in order to inform an operator of the existence or nonexistence of a blind area in a panoramic image, the medical image display device has a panoramic image creating unit configured to create a panoramic image of a hollow organ of an examinee and a display unit configured to display the panoramic image, and further has a blind area detecting unit configured to detect a blind area in the panoramic image and an informing unit configured to inform an operator of the existence or nonexistence of the blind portion. Furthermore, a medical image display method of the present invention has a panoramic image creating step that creates a panoramic image of a hollow organ of an examinee and a display step that displays the panoramic image, and further has a blind area detecting step that detects a blind area in the panoramic image and an informing step that informs an operator of the existence or nonexistence of the blind portion.

Medical image display device and method

Growing community of inventors

Tokyo, Japan

Yoshihiro Goto