Canon Kabushiki Kaisha

Takahiro Oshino

Hidetoshi Tsubaki

Mitsuhiro Saito

Koichiro Tanaka

Akihiro Katayama

Hiroyuki Yamamoto

Hideyuki Tamura

Hiroyuki Shinbata

Yoshihiro Ishida

Tsukasa Sako

Shinichiro Koga

Osamu Morimoto

Yukio Kamoshida

An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.

Image capturing apparatus and image processing method

The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stablization irrespective of changes of image-taking conditions. An image processing apparatus comprises a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device, and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.

Image processing apparatus, image-pickup apparatus, and image processing method

An image stabilizing apparatus includes a motion vector calculating part that calculates a motion vector between a plurality of images including a displacement caused by a motion of an image-pickup apparatus, a shake-correction parameter calculating part that receives the motion vector as input to calculate a shake correction amount, and an image transforming part that performs geometric transformation of the image in accordance with the shake correction amount. The shake-correction parameter calculating part performs variation amount calculation, variation amount correction and correction amount calculation based on the motion information between the plurality of images. The image stabilizing apparatus preserves a motion in video from an intended camera work and allows image stabilization for an unintended shake.

Image stabilizing apparatus, image pick-up apparatus and image stabilizing method

An image processing apparatus includes a first processing part selecting motion detection points for detecting a motion between images, and acquiring first motion vectors that are local motion vectors at the motion detection points, a second processing part acquiring first representative motions that are representative motions of translation, scaling and rotation based on the first motion vectors, a third processing part eliminating components of the first representative motions from the first motion vectors and acquiring second motion vectors, a fourth processing part acquiring local foreshortening motions at the motion detection points from the second motion vectors, and a fifth processing part acquiring a second representative motion that is a representative foreshortening motion from the local foreshortening motions. This process can obtain information representing geometric deformation between the images by simple processing.

Image processing apparatus and image processing method

The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stabilization irrespective of changes of image-taking conditions. An image processing apparatus comprising: a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device; and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.

Image stabilizing apparatus, image-pickup apparatus and image stabilizing method

An image conversion apparatus for geometrically converting input image data and outputting output image data, includes an inverse coordinate conversion unit configured to inversely convert coordinate values on the coordinate system of the output image data into coordinate values on the coordinate system of the input image data based on the geometric conversion. When a region between neighboring pixels of the coordinate system of the input image data is divided into a plurality of divisions, the inverse coordinate conversion unit changes the inversely converted coordinate values so that coordinate values which belong to an identical division of the inversely converted coordinate values have a random two-dimensional array.

Image conversion apparatus and image conversion method

An image processing method comprises an extracting process of extracting a characteristic amount of an input image, a generating process of generating a high frequency component of the input image, a gradation converting process of converting a gradation of the input image on the basis of the characteristic amount, and an adding process of adding the high frequency component to the input image whose gradation has been converted.

Image processing apparatus, image processing method, and recording medium

This invention has as its object to provide an image processing system and a control method for the system, a photographing system and a control method for the system, and a computer-readable memory, which can efficiently photograph without any increase in X-ray dose for a person to be examined. To achieve this object, an output mode input section inputs an output mode representing the output format of an observation area as a to-be-output area in an image to an output medium. An output medium size input section inputs the size of the effective image area of the output medium. The output determination section determines the output method of the observation area on the basis of the observation area and contents input by the input sections.

Image processing apparatus and method, photographing system, controlling method for the system, and computer-readable memory

Upon observation of multi-viewpoint images, even when the viewpoint moves continuously, the image cannot normally be displayed in correspondence with the continuous movement of the viewpoint, and an image from a viewpoint closest to the current viewpoint is displayed. To prevent this, each two adjacent images of the multi-viewpoint images are interpolated by detecting corresponding pixels and generating an interpolated image in accordance with the correspondences among pixels. The interpolated image is generated in such a manner that an epipolar plane image is generated by juxtaposing corresponding lines of the multi-viewpoint image, straight lines are detected from the epipolar plane image, and the intersecting points between interpolated lines and the detected straight lines are detected as interpolated pixels. In this case, as for a point for which a straight line cannot be detected, a straight line passing the point is estimated, thereby generating an interpolated pixel. When a plurality of straight lines are detected for a pixel of interest, the priority level is assigned to the pixel of interest in correspondence with the number of detected straight lines. When the priority level is smaller than that of another pixel through which the detected straight line passes, the straight line is ignored, and an interpolated pixel is not generated.

Image forming method and apparatus

An image processing system generates un-sharp signals from input image data representing an input image. The system includes a reducing device which reduces the input image, and a blurring device which performs blurring processing on the reduced image. The system also includes an enlarging device which performs enlarging processing on the blurring processed image and outputs the un-sharp signals, and an image processing device performs image processing on the input image based on the un-sharp signals.

Image processing method and apparatus

In magnifying a multivalued image, binary images are generated by using the respective density levels of the multivalued image as thresholds. The contour of each binary image is equivalent to an equidensity curve corresponding to each density gradient of the original multivalued image. Outline vectors of each binary image are extracted and magnified/smoothed. The contour of each binary image represents an equidensity curve corresponding to each density gradient of the magnified multivalued image. In a binary image area corresponding to a black pixel of each binary image, a pixel having a density equal to the threshold used to generate the binary image is written. This processing is sequentially performed for all the binary images from a low-density binary image to a high-density binary image to generate a multivalued image. The objected multivalued image is subjected to density gradient smoothing processing. As a result, a magnified multivalued image is obtained.

Each two adjacent images of multi-viewpoint images are interpolated by detecting corresponding pixels and generating an interpolated image in accordance with the correspondence among pixels. The interpolated image is generated in such a manner that an epipolar plane is generated by juxtaposing corresponding lines of the multi-viewpoint image, straight lines are detected from the epipolar plane image, and the intersecting points between interpolated lines and the detected straight lines are detected as interpolated pixels. In this case, as for a point for which a straight line cannot be detected, a straight line passing the point is estimated, thereby generating an interpolated pixel. When a plurality of straight lines are detected for a pixel of interest, a priority level is assigned to the pixel of interest in correspondence with the number of detected straight lines. When the priority level is smaller than that of another pixel through which the detected straight line passes, the straight line is ignored, and an interpolated pixel is not generated.

Image processing method and apparatus for generating an image from the viewpoint of an observer on the basis of images obtained from a plurality of viewpoints

An image processing apparatus detects corresponding pixels in object images picked up from a plurality of viewpoints and interpolates object images which are supposed to be seen from viewpoints other than the plurality of viewpoints on the basis of the detected corresponding pixels.

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Utsunomiya, Japan

Takahiro Oshino