公开(公告)号：US07746387B2

公开(公告)日：2010-06-29

申请号：US11724253

申请日：2007-03-15

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： H04N5/235 ,  G03B7/00

CPC分类号： H04N5/35581 ,  H04N5/2353 ,  H04N5/2355 ,  H04N5/3415 ,  H04N5/35554

摘要： In an image pickup apparatus, a level compensator compensates the level of an image xL (i, j) sensed by an image sensor by exposure for a long time on the basis of the exposure of the image to produce a compensated image xL′ (i, j), while another level compensator compensates the level of an image xS (i, j) sensed by the image sensor by exposure for a short time on the basis of the exposure of the image to produce a compensated image xS′ (i, j). The image pickup apparatus also includes an image synthesizer to synthesize these compensates images xL′ (i, j) and xS′ (i, j) to produce a single synthetic image x (i, j). A dynamic range compressor also included in the image pickup apparatus compresses the synthetic image x (i, j) to produce a compressed image y (i, j) for delivery to outside.

摘要翻译： 在图像拾取装置中，电平补偿器基于图像的曝光来补偿由图像传感器感测的图像xL（i，j）的电平，以产生补偿图像xL'（i ，j），而另一个电平补偿器基于图像的曝光补偿由图像传感器感测到的图像xS（i，j）的电平，以产生补偿图像xS'（i，j） j）。 图像拾取装置还包括用于合成这些补偿图像xL'（i，j）和xS'（i，j）以产生单个合成图像x（i，j）的图像合成器。 还包括在图像拾取装置中的动态范围压缩器压缩合成图像x（i，j）以产生用于传送到外部的压缩图像y（i，j）。

公开(公告)号：US20070047034A1

公开(公告)日：2007-03-01

申请号：US11592155

申请日：2006-11-03

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： G03F3/08

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T5/10 ,  G06T2207/10012 ,  H04N1/4072 ,  H04N5/20 ,  H04N5/57

摘要： The invention provides an image processing apparatus and an image processing method. An area to which image data belongs is discriminated, and a correction coefficient to be used for correction of a pixel value of the image data is produced based on a result of the discrimination. Then, the pixel value of the image data is corrected with the correction coefficient. The relationship in magnitude among pixel values in the same area is maintained because the same coefficient is used, but pixel values which belong to different areas can be varied or even reversed. This allows the gradation of an entire image to be corrected while preventing partial deterioration of the contrast.

公开(公告)号：US06965416B2

公开(公告)日：2005-11-15

申请号：US09816043

申请日：2001-03-23

申请人： Takashi Tsuchiya ,  Masami Ogata ,  Kazuhiko Ueda

发明人： Takashi Tsuchiya ,  Masami Ogata ,  Kazuhiko Ueda

IPC分类号： G06T5/00 ,  H04N1/407 ,  H04N1/409 ,  H04N5/20 ,  H04N9/68 ,  H04N5/21

CPC分类号： H04N1/407 ,  H04N1/4092

摘要： The present invention relates to an image processing circuit and an image processing method, and is applied to, for example, a video camera, an electronic still camera and the like, for compressing the dynamic range at a high compression rate with evading the lowering of an impression concerning the contrast and the unnatural edge emphasis. The present invention smoothes an input image X while preserving the edge to obtain a gain correction coefficient, and corrects the pixel value x(i, j) of the input image X with the gain correction coefficient.

摘要翻译： 图像处理电路和图像处理方法技术领域本发明涉及图像处理电路和图像处理方法，并且被应用于例如摄像机，电子静态照相机等，用于以高压缩率压缩动态范围， 关于对比度和不自然的边缘强调的印象。 本发明平滑输入图像X，同时保留边缘以获得增益校正系数，并用增益校正系数校正输入图像X的像素值x（i，j）。

公开(公告)号：US07202892B1

公开(公告)日：2007-04-10

申请号：US09468053

申请日：1999-12-20

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： H04N5/235 ,  G03B7/00

CPC分类号： H04N5/35581 ,  H04N5/2353 ,  H04N5/2355 ,  H04N5/3415 ,  H04N5/35554

摘要： In an image pickup apparatus, a level compensator compensates the level of an image xL (i, j) sensed by an image sensor by exposure for a long time on the basis of the exposure of the image to produce a compensated image xL′ (i, j), while another level compensator compensates the level of an image xS (i, j) sensed by the image sensor by exposure for a short time on the basis of the exposure of the image to produce a compensated image xS′ (i, j). The image pickup apparatus also includes an image synthesizer to synthesize these compensates images xL′ (i, j) and xS′ (i, j) to produce a single synthetic image x (i, j). A dynamic range compressor also included in the image pickup apparatus compresses the synthetic image x (i, j) to produce a compressed image y (i, j) for delivery to outside.

摘要翻译： 在图像拾取装置中，电平补偿器基于图像的曝光来补偿由图像传感器感测的图像xL（i，j）的电平，以产生补偿图像xL'（i ，j），而另一个电平补偿器基于图像的曝光补偿由图像传感器感测到的图像xS（i，j）的电平，以产生补偿图像xS'（i， j）。 图像拾取装置还包括用于合成这些补偿图像xL'（i，j）和xS'（i，j）以产生单个合成图像x（i，j）的图像合成器。 还包括在图像拾取装置中的动态范围压缩器压缩合成图像x（i，j）以产生用于传送到外部的压缩图像y（i，j）。

公开(公告)号：US07092019B1

公开(公告)日：2006-08-15

申请号：US09580166

申请日：2000-05-30

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： H04N9/093

CPC分类号： H04N5/23248 ,  H04N5/23254 ,  H04N5/23258 ,  H04N5/2355

摘要： An image capturing apparatus and a method therefor are proposed for the production of a natural composite image corresponding to an object to be imaged. A misregistration amount (d) of each image (xS1) except for a reference image (xL1) is detected with respect to the reference image, misregistration of each image except for the reference image with respect to the reference image is corrected on the basis of the misregistration amount, and then the reference image and each misregistration corrected image (xS4) except for the reference image are composed, thereby making it possible to avoid a degraded image quality which would otherwise be produced when a plurality of images are composed without correction, and consequently produce a natural composite image corresponding to an object to be imaged.

摘要翻译： 提出了一种用于制作与待成像对象相对应的自然合成图像的图像捕获装置及其方法。 针对参考图像检测除了参考图像（xL 1）之外的每个图像（xS 1）的对准量（d），除了参考图像之外的每个图像相对于参考图像的对准被校正在 不对准量的基础，然后构成参考图像和除了参考图像之外的每个重合不正确的图像（xS4），从而可以避免在组合多个图像时否则将产生的劣化的图像质量 而无需校正，并因此产生对应于待成像对象的自然合成图像。

公开(公告)号：US07440612B2

公开(公告)日：2008-10-21

申请号：US10802600

申请日：2004-03-16

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： G06K9/00 ,  G06K9/40 ,  H04N9/68

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T5/10 ,  G06T2207/10012 ,  H04N1/4072 ,  H04N5/20 ,  H04N5/57

摘要： The invention provides an image processing apparatus and an image processing method. An area to which image data belongs is discriminated, and a correction coefficient to be used for correction of a pixel value of the image data is produced based on a result of the discrimination. Then, the pixel value of the image data is corrected with the correction coefficient. The relationship in magnitude among pixel values in the same area is maintained because the same coefficient is used, but pixel values which belong to different areas can be varied or even reversed. This allows the gradation of an entire image to be corrected while preventing partial deterioration of the contrast.

摘要翻译： 本发明提供一种图像处理装置和图像处理方法。 鉴别图像数据所属的区域，并且基于鉴别的结果产生用于校正图像数据的像素值的校正系数。 然后，利用校正系数校正图像数据的像素值。 由于使用相同的系数，因此维持同一区域中的像素值之间的大小关系，但属于不同区域的像素值可以变化甚至反转。 这允许校正整个图像的灰度，同时防止对比度的部分劣化。

公开(公告)号：US20070103745A1

公开(公告)日：2007-05-10

申请号：US11592298

申请日：2006-11-03

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： G03F3/08

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T5/10 ,  G06T2207/10012 ,  H04N1/4072 ,  H04N5/20 ,  H04N5/57

摘要： The invention provides an image processing apparatus and an image processing method. An area to which image data belongs is discriminated, and a correction coefficient to be used for correction of a pixel value of the image data is produced based on a result of the discrimination. Then, the pixel value of the image data is corrected with the correction coefficient. The relationship in magnitude among pixel values in the same area is maintained because the same coefficient is used, but pixel values which belong to different areas can be varied or even reversed. This allows the gradation of an entire image to be corrected while preventing partial deterioration of the contrast.

摘要翻译： 本发明提供一种图像处理装置和图像处理方法。 鉴别图像数据所属的区域，并且基于鉴别的结果产生用于校正图像数据的像素值的校正系数。 然后，利用校正系数校正图像数据的像素值。 由于使用相同的系数，因此维持同一区域中的像素值之间的大小关系，但属于不同区域的像素值可以变化甚至反转。 这允许校正整个图像的灰度，同时防止对比度的部分劣化。

公开(公告)号：US06768514B1

公开(公告)日：2004-07-27

申请号：US09441855

申请日：1999-11-17

申请人： Takashi Tsuchiya ,  Masami Ogata ,  Kazuhiko Ueda

发明人： Takashi Tsuchiya ,  Masami Ogata ,  Kazuhiko Ueda

IPC分类号： H04N5208

CPC分类号： H04N5/20 ,  H04N5/142

摘要： The present invention relates to an image processing apparatus and an image processing method, and it is applicable to a variety of kinds of image processing apparatus such as television receivers, video tape recorders, television cameras, printers, etc., and it makes it possible to correct the gradation of an image avoiding the lowering of partial contrast effectively. In this case, an excessive emphasis of an outline can be avoided.

摘要翻译： 图像处理装置和图像处理方法技术领域本发明涉及一种图像处理装置和图像处理方法，其可应用于电视接收机，录像机，电视摄像机，打印机等各种图像处理装置，并且可以使其成为可能 以校正图像的灰度，从而有效地避免部分对比度的降低。 在这种情况下，可以避免对轮廓的过度强调。

公开(公告)号：US06753910B1

公开(公告)日：2004-06-22

申请号：US09441824

申请日：1999-11-17

申请人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

发明人： Masami Ogata ,  Takashi Tsuchiya ,  Kazuhiko Ueda

IPC分类号： H04N968

CPC分类号： H04N5/20 ,  H04N5/205

摘要： The invention provides an image processing apparatus and an image processing method and can be applied to an image information apparatus such as, for example, a television receiver, a video tape recorder, a television camera and a printer so that the gradation can be corrected while effectively preventing a finally obtained image from partial deterioration of the contrast. An area to which each of image data belongs is discriminated with reference to, for example, a low frequency component of a pixel value, and a correction coefficient is produced for the area. Such correction coefficients are smoothed between successive frames, and the pixel values of the image data are corrected with the smoothed correction coefficients.

摘要翻译： 本发明提供一种图像处理装置和图像处理方法，并且可以应用于诸如电视接收机，录像机，电视摄像机和打印机的图像信息装置，使得可以校正灰度等级 有效地防止最终获得的图像的对比度的部分劣化。 参考例如像素值的低频分量来区分图像数据所属的区域，并且为该区域产生校正系数。 这样的校正系数在连续帧之间被平滑，并且用平滑的校正系数来校正图像数据的像素值。

公开(公告)号：US06724943B2

公开(公告)日：2004-04-20

申请号：US09778309

申请日：2001-02-07

申请人： Takashi Tsuchiya ,  Masami Ogata ,  Kazuhiko Ueda

发明人： Takashi Tsuchiya ,  Masami Ogata ,  Kazuhiko Ueda

IPC分类号： G06K940

CPC分类号： H04N5/208

摘要： A device and a method for image processing make it possible to significantly improve the contrast and the sharpness of the whole image, in comparison with the ordinary. By amplifying the portions other than the edges, while conserving the edges with the pixel values which change abruptly out of input image data, it is possible to enhance and display the portions other than the edges, and so it is possible to significantly improve the contrast and the sharpness of the whole image, in comparison with the ordinary.

摘要翻译： 与普通的相比，图像处理的装置和方法使得可以显着提高整个图像的对比度和清晰度。 通过放大除边缘之外的部分，同时利用输入图像数据突然变化的像素值来节省边缘，可以增强和显示边缘之外的部分，因此可以显着改善对比度 和整个图像的清晰度，与普通的相比。