公开(公告)号：US07010160B1

公开(公告)日：2006-03-07

申请号：US09334420

申请日：1999-06-16

申请人： Hiroki Yoshida

发明人： Hiroki Yoshida

IPC分类号： G06K9/00 ,  G03B7/00

CPC分类号： H04N5/243 ,  H04N5/2351

摘要： In an image processing apparatus processing digitized image data taken by a digital camera, or the like, an image focused on an image pickup device is divided into a plurality of rectangular regions. A value of the lightness with respect to each rectangular region and a distribution of the color saturation are calculated by using image data. The scene of the image is judged whether it is backlighted or not by using a number of the rectangular regions having the value of the lightness equal to or larger than a threshold value. When the scene is judged as the backlight scene, it is further judged whether it is actually backlighted or not by using the distribution of the color saturation.

摘要翻译： 在处理由数码相机等拍摄的数字化图像数据的图像处理装置中，将聚焦在图像拾取装置上的图像分成多个矩形区域。 通过使用图像数据来计算相对于每个矩形区域的亮度值和色彩饱和度的分布。 通过使用具有等于或大于阈值的亮度值的多个矩形区域来判断图像的场景是否被背光。 当场景被判定为背光场景时，通过使用色彩饱和度的分布进一步判断是否实际上是背光的。

公开(公告)号：US06606200B1

公开(公告)日：2003-08-12

申请号：US09421367

申请日：1999-10-19

申请人： Hiroki Nakayama ,  Hiroyuki Hamano ,  Hiroki Yoshida

发明人： Hiroki Nakayama ,  Hiroyuki Hamano ,  Hiroki Yoshida

IPC分类号： G02B1514

CPC分类号： G02B15/173

摘要： A zoom lens device including a diffraction optical element constructed in a new way. In a basic form of the invention, the zoom lens device includes in order of lens units from a long conjugate side, at least a first lens unit including the diffraction optical element, a second lens unit which is moved during zooming in order to change the size of an image, and a third lens unit. In this zoom lens device, during zooming at least one of the lens units from the third lens unit onwards is moved in order to correct a change in an image plane which occurs as the magnification changes.

摘要翻译： 一种变焦透镜装置，包括以新的方式构造的衍射光学元件。 在本发明的基本形式中，变焦透镜装置依次包括来自长的共轭侧的透镜单元，至少包括衍射光学元件的第一透镜单元，在变焦期间移动的第二透镜单元，以便改变 图像的尺寸和第三透镜单元。 在该变焦透镜装置中，在变焦期间，移动来自第三透镜单元的至少一个透镜单元，以便校正随着放大率的变化而发生的图像平面的变化。

公开(公告)号：US06473231B2

公开(公告)日：2002-10-29

申请号：US09251415

申请日：1999-02-17

申请人： Hiroyuki Hamano ,  Hiroki Yoshida

发明人： Hiroyuki Hamano ,  Hiroki Yoshida

IPC分类号： G02B2764

CPC分类号： G02B27/646 ,  G02B13/22 ,  G02B15/173

摘要： A variable magnification optical system having an image stabilizing function includes, in order from an object side to an image side, a fixed first lens unit of positive refractive power, a second lens unit of negative refractive power, a third lens unit of positive refractive power and a fourth lens unit of positive refractive power. The second lens unit and the fourth lens unit are moved to effect variation of magnification. The third lens unit has a negative lens of meniscus form concave toward the image side and an aspheric surface, and the third lens unit is movable in a direction perpendicular to an optical axis to stabilize an image, or a lens sub-unit constituting part of the third lens unit is movable in the direction perpendicular to the optical axis to stabilize an image.

摘要翻译： 具有图像稳定功能的可变放大率光学系统包括从物体侧到图像侧的正屈光力固定的第一透镜单元，负折光力的第二透镜单元，正屈光力的第三透镜单元 以及具有正屈光力的第四透镜单元。 移动第二透镜单元和第四透镜单元以实现放大率的变化。 第三透镜单元具有朝向像侧凹入的弯液面的负透镜和非球面，并且第三透镜单元可以在垂直于光轴的方向上移动以使图像稳定，或者构成部分的透镜子单元 第三透镜单元可以在垂直于光轴的方向上移动，以稳定图像。