IMAGE PROCESSING METHOD AND CLASSIFICATION MODEL CONSTRUCTION METHOD

    公开(公告)号:US20230031698A1

    公开(公告)日:2023-02-02

    申请号:US17871342

    申请日:2022-07-22

    Inventor: Ryo HASEBE

    Abstract: An image processing method according to the invention includes obtaining a ground truth image teaching a cell region occupied by a cell in an original image for each of a plurality of the original images obtained by bright-field imaging of the cell, generating a reverse image by reversing luminance of the original image at least for the cell region based on each original image, and constructing a classification model by performing machine learning using a set of the original image and the ground truth image corresponding to the original image and a set of the reverse image and the ground truth image corresponding to the original image as a basis of the reverse image respectively as training data.

    OBSERVATION METHOD AND OBSERVATION APPARATUS

    公开(公告)号:US20240303811A1

    公开(公告)日:2024-09-12

    申请号:US18598539

    申请日:2024-03-07

    Inventor: Ryo HASEBE

    Abstract: First, a biological sample is imaged, and a photographic image in which intensity values are distributed is acquired. After that, a localization region corresponding to an unusual part is extracted from the photographic image. At that time, a region of which intensity value satisfies a predetermined requirement in the photographic image is extracted as the localization region. Alternatively, the photographic image is input to a trained model created in advance, and a localization region output from the trained model is obtained. In this manner, the localization region corresponding to the unusual part can be extracted from the photographic image of the biological sample. This enables noninvasive observation of the unusual part of the biological sample without processing a cell by staining or the like.

    IMAGE STANDARDIZATION METHOD AND OBSERVATION APPARATUS

    公开(公告)号:US20250157231A1

    公开(公告)日:2025-05-15

    申请号:US18838336

    申请日:2022-12-20

    Abstract: According to this image standardization method, first, a region corresponding to a whole or a part of a biological sample in an image is extracted as an observation target region. Subsequently, an aggregate value of intensity values is calculated for each of multiple observation target regions. After that, intensity values of the multiple observation target regions are adjusted so that a difference in the aggregate value becomes smaller. This reduces variation in brightness among the multiple observation target regions. This can reduce a difference in an intensity value of the observation target region for the image of the biological sample including multiple cells. Consequently, multiple biological samples can be fairly observed and evaluated.

    IMAGE PROCESSING METHOD FOR IMAGING A CELL AGGREGATE AND RECORDING MEDIUM THEREFOR

    公开(公告)号:US20240420327A1

    公开(公告)日:2024-12-19

    申请号:US18816477

    申请日:2024-08-27

    Inventor: Ryo HASEBE

    Abstract: An image processing method comprises obtaining three-dimensional image data representing a three-dimensional image of a cell aggregate with a cavity inside obtained by optical coherence tomography imaging, obtaining a thickness distribution representing a thickness of the cell aggregate between an outer surface of the cell aggregate facing an outside space and an inner surface thereof facing the cavity at each position based on the three-dimensional image data; and detecting protrusion parts having a prominent thickness as compared to a surrounding region based on the thickness distribution.

    QUALITY EVALUATION METHOD FOR SPHEROID INCLUDING HEPATOCYTES

    公开(公告)号:US20240303813A1

    公开(公告)日:2024-09-12

    申请号:US18599728

    申请日:2024-03-08

    CPC classification number: G06T7/0012 G06T7/11 G06T2207/30024

    Abstract: In an evaluation method, first, spheroids obtained by three-dimensional culture of multiple kinds of liver-derived cells are imaged by optical coherence photography, a localization region is extracted from the photographic image, the localization region is analyzed (analysis step), and the condition of the spheroid is evaluated. The analysis step includes a first calculation step of calculating the area of the entire spheroid in the photographic image, a second calculation step of calculating the area of the localization region, a third calculation step of calculating the ratio of the localization region on the basis of the two areas, and a fourth calculation step of calculating an evaluation parameter on the basis of the ratio.

Patent Agency Ranking