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    • 8. 发明授权
    • Method and device of object detectable and background removal, and storage media for storing program thereof
    • US06603880B2
    • 2003-08-05
    • US09965147
    • 2001-09-28
    • Shizuo Sakamoto
    • Shizuo Sakamoto
    • G06K934
    • G06K9/00664G06T7/11G06T7/194G06T2207/20021
    • A method and device for an object detectable and background removal and storage media for storing program thereof enable automatic detection of an object to be executed minutely and high precisely for outline. A sectional image statistic calculation measure calculates a mean value and standard deviation of characteristic value of brightness and so forth of the sectional image with input image being subjected to division processing into sectional image. A background sectional image selection measure causes a sectional image whose standard deviation is the smallest value in the sectional images to be taken as the sectional image with high probability of including only the background. A background statistic estimation measure investigates the sectional image including only the background and another sectional image under the relationship between the mean value and the standard deviation. This investigation is implemented in terms of whole sectional images, a threshold generation object detectable and background removal measure discriminates the background and the detected target object based on predetermined calculation procedure. For instance, a second threshold is in use, which is obtained in such a way that the standard deviation multiplied by constant number given beforehand from the mean value is added thereto.
    • 9. 发明授权
    • Red-eye detection/retouch apparatus
    • 红眼检测/润饰装置
    • US5990973A
    • 1999-11-23
    • US864431
    • 1997-05-28
    • Shizuo Sakamoto
    • Shizuo Sakamoto
    • G03B15/05G03B27/73G03B27/80G06K9/00G06T1/00G06T5/00G06T7/00G06T7/40H04N1/46H04N1/60H04N9/04H04N9/64H04N9/74H04N5/14
    • G06K9/0061G06T5/005G06T7/004G06T7/408G06T2207/10024G06T2207/30216
    • In a red-eye detection/retouch apparatus, a first area extraction unit receives an image including a red eye and a signal representing a small area including the red eye and designated by a user and extracts a first area including the red eye. A first pixel selection unit detects the reddest pixel from the first area and outputs coordinate values and color information of the pixel. A determination unit determines whether the other red eye is present on the basis of the signal representing the small area and the coordinate values of the reddest pixel. The determination unit outputs an instruction signal for extracting a second area where the other red eye is present upon determining that the other red eye is present. A second area extraction unit receives the instruction signal and extracts the second area from the first area. A second pixel selection unit detects the reddest pixel from the second area and outputs coordinate values and color information of the pixel. An area expansion unit receives the coordinate values and color information of the pixels and the first area, detects a red-eye area by area expansion, and outputs the red-eye area. An image synthesis unit receives the red-eye area and the image including the red eye and outputs an image whose red-eye area has been corrected to a natural pupil color.
    • 在红眼检测/修饰装置中,第一区域提取单元接收包括红眼的图像和表示包括红眼的小区域并由用户指定的信号,并提取包括红眼的第一区域。 第一像素选择单元从第一区域检测最红色像素并输出像素的坐标值和颜色信息。 确定单元基于表示最小像素的小区域的信号和最红色像素的坐标值来确定是否存在另一个红眼。 确定单元在确定存在另一个红眼之后输出用于提取存在另一个红眼的第二区域的指令信号。 第二区域提取单元接收指令信号并从第一区域提取第二区域。 第二像素选择单元从第二区域检测最红色像素并输出像素的坐标值和颜色信息。 区域扩展单元接收像素和第一区域的坐标值和颜色信息,通过面积展开来检测红眼区域,并输出红眼区域。 图像合成单元接收红眼区域和包括红眼的图像,并且将其红眼区域的图像校正到自然光瞳颜色。