System and method for examining, recording and analyzing dermatological conditions
    1.
    发明授权
    System and method for examining, recording and analyzing dermatological conditions 失效
    用于检查,记录和分析皮肤病学条件的系统和方法

    公开(公告)号:US06993167B1

    公开(公告)日:2006-01-31

    申请号:US09473270

    申请日:1999-12-27

    CPC classification number: A61B5/444 A61B5/0059 G06F19/00

    Abstract: A system for collecting, storing and displaying dermatological images for the purpose of monitoring and diagnosis of skin conditions and skin cancers, including melanoma. A hand-held unit illuminates a section of the patient's skin, and an imaging device generates imaging signals from light derived from a skin section. Pairs of light output ports in the hand-held unit are arranged such that their intensity distributions overlap at their half-intensity levels so that the resulting summation of their intensities has a flat central region. Three image stores are maintained, one for lesion images, one for “nearby skin” images, and one for reference-white images. The “nearby skin” images are used by the system software to automatically determine the skin/lesion border. The reference white images are used to set the dynamic range of the instrument and to compensate for lighting irregularities. Two images of the same lesion taken at different times may be displayed simultaneously so that changes in the lesion may be determined. The calibration system is designed so that image data taken on any of multiple machines built to the same specification will be corrected back to a common reference standard to ensure absolute accuracy in colour rendition.

    Abstract translation: 用于收集,存储和显示皮肤病图像的系统,用于监测和诊断皮肤状况和皮肤癌,包括黑素瘤。 手持单元照亮患者皮肤的一部分,并且成像装置从衍生自皮肤部分的光产生成像信号。 手持单元中的一对光输出端口布置成使得它们的强度分布以其半强度水平重叠,使得其强度的总和具有平坦的中心区域。 维护三个图像存储,一个用于损伤图像,一个用于“附近皮肤”图像,一个用于参考白色图像。 系统软件使用“附近皮肤”图像自动确定皮肤/病变边界。 参考白色图像用于设置仪器的动态范围并补偿照明不规则。 可以同时显示在不同时间拍摄的相同病变的两个图像,从而可以确定病变的变化。 校准系统的设计使得在同一规格上制造的多台机器上拍摄的图像数据将被修正为公共参考标准,以确保色彩再现的绝对准确性。

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