Abstract: An image processing apparatus includes one or more memories storing instructions, and one or more processors that execute the instructions to: acquire a plurality of images captured by a plurality of imaging apparatuses, and a first virtual viewpoint image generated based on the plurality of images, evaluate the first virtual viewpoint image based on a feature point of an image captured by an imaging apparatus imaging an object included in the first virtual viewpoint image among the plurality of imaging apparatuses, and a feature point of a second virtual viewpoint image corresponding to a viewpoint same as a viewpoint of the imaging apparatus imaging the object, and perform control for displaying the first viewpoint image and information indicating an evaluation result of the first virtual viewpoint image.

Abstract: Time information of an output video and setting information of an imaging apparatus at least a switch time included in the time information are obtained. Setting information of a virtual viewpoint at the switch time included in the time information in which setting information of the virtual viewpoint at the switch time is set based on the obtained setting information of the imaging apparatus is obtained. An image processing apparatus generates a virtual viewpoint video based on the setting information of the virtual viewpoint. The image processing apparatus and a storage apparatus storing the captured video synchronously output frames of the same time based on the time information. The virtual viewpoint video and the captured video received from the image processing apparatus and the storage apparatus are outputted while being switched from one video to another at the switch time.

Abstract: An image processing apparatus that determines a correction parameter for correcting distortion or a position of an image projected on a screen by a projection unit, the apparatus comprises a holding unit which holds a reference pattern constituted by a background region and a plurality of significant pixels scattered in the background region and having a pixel value different from a pixel value of the background region, a generating unit which generates a pattern image to be projected by changing a value of a pixel near the significant pixel in the reference pattern, an acquisition unit which acquires a captured image obtained by an image capturing unit by capturing the pattern image generated by the generating unit so as to include a projection image projected by the projection unit, and a determining unit which determines the correction parameter from the captured image.

Abstract: Time information of an output video and setting information of an imaging apparatus at least a switch time included in the time information are obtained. Setting information of a virtual viewpoint at the switch time included in the time information in which setting information of the virtual viewpoint at the switch time is set based on the obtained setting information of the imaging apparatus is obtained. An image processing apparatus generates a virtual viewpoint video based on the setting information of the virtual viewpoint. The image processing apparatus and a storage apparatus storing the captured video synchronously output frames of the same time based on the time information. The virtual viewpoint video and the captured video received from the image processing apparatus and the storage apparatus are outputted while being switched from one video to another at the switch time.

Abstract: An image processing apparatus that transforms distortion of an image projected by a projection apparatus includes an obtaining unit and a transformation unit. The obtaining unit is configured to obtain a captured image acquired by capturing a projected image including a pattern image projected by the projection apparatus. The pattern image contains at least three objects having different appearances from one area to another. The transformation unit is configured to specify a local area in the captured image and transform the local area based on a positional relationship among the at least three objects in the local area. The transformation unit transforms the local area by using a positional relationship between an object of a first appearance and an object of a second appearance in the local area and a positional relationship between the object of the first appearance and an object of a third appearance in the local area.

Abstract: An image processing apparatus that determines a correction parameter for correcting distortion or a position of an image projected on a screen by a projection unit, the apparatus comprises a holding unit which holds a reference pattern constituted by a background region and a plurality of significant pixels scattered in the background region and having a pixel value different from a pixel value of the background region, a generating unit which generates a pattern image to be projected by changing a value of a pixel near the significant pixel in the reference pattern, an acquisition unit which acquires a captured image obtained by an image capturing unit by capturing the pattern image generated by the generating unit so as to include a projection image projected by the projection unit, and a determining unit which determines the correction parameter from the captured image.

Abstract: An image processing apparatus that transforms distortion of an image projected by a projection apparatus includes an obtaining unit and a transformation unit. The obtaining unit is configured to obtain a captured image acquired by capturing a projected image including a pattern image projected by the projection apparatus. The pattern image contains at least three objects having different appearances from one area to another. The transformation unit is configured to specify a local area in the captured image and transform the local area based on a positional relationship among the at least three objects in the local area. The transformation unit transforms the local area by using a positional relationship between an object of a first appearance and an object of a second appearance in the local area and a positional relationship between the object of the first appearance and an object of a third appearance in the local area.

Abstract: A display control apparatus obtains a first image in which an input image is represented at a first resolution and inverse gamma converted, and a second image representing the input image at a second resolution lower than the first resolution. The apparatus converts the second image into a third image for which: an inverse gamma conversion is performed; change in tone of each pixel is the same as in the second image; and resolution is represented by the first resolution. The apparatus outputs, for a stack projection, the second image and a corrected image which is obtained by correcting each pixel of the first image based on a difference between a pixel value of each pixel of the first image and a pixel value of each pixel of the third image and applying a gamma correction, and the second image.

Abstract: A plurality of anchor points at which a curve to be estimated passes sequentially through are set. Four anchor points which are successional are selected from the plurality of anchor points. First and second control points are set based on the selected anchor points. Quadratic Bezier curves connecting between the selected anchor points are calculated based on the selected anchor points and the first or second control point. Coordinate values of the curve to be estimated are estimated based on the quadratic Bezier curves.

Abstract: A plurality of anchor points at which a curve to be estimated passes sequentially through are set. Four anchor points which are successional are selected from the plurality of anchor points. First and second control points are set based on the selected anchor points. Quadratic Bezier curves connecting between the selected anchor points are calculated based on the selected anchor points and the first or second control point. Coordinate values of the curve to be estimated are estimated based on the quadratic Bezier curves.

Abstract: An image processing apparatus includes a receiving unit, a specifying unit, a controlling unit, and an outputting unit. The receiving unit receives image data. The specifying unit specifies a correction amount of the image data for keystone correction processing. The controlling unit controls, based on the correction amount specified by the specifying unit, the keystone correction processing, filter processing for reducing a predetermined high frequency component, and edge enhancement processing. The outputting unit outputs processed image data which is processed based on the controlling by the controlling unit.

Abstract: A frame image is input. First to Nth intermediate images are generated from the frame image. First to Nth sub-filters that have been generated by dividing an original filter are held, along with relative position information of pixels referred to by each of the sub-filters. Pixel values are collected of pixels in an ith intermediate range (1?i?N). N sub-frame images are created by obtaining a pixel value of a pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the collected pixel values.

Abstract: An image processing apparatus includes a receiving unit, a specifying unit, a controlling unit, and an outputting unit. The receiving unit receives image data. The specifying unit specifies a correction amount of the image data for keystone correction processing. The controlling unit controls, based on the correction amount specified by the specifying unit, the keystone correction processing, filter processing for reducing a predetermined high frequency component, and edge enhancement processing. The outputting unit outputs processed image data which is processed based on the controlling by the controlling unit.

Abstract: An image projection apparatus includes a calculation unit, a band limiting unit, a reduction processing unit, and an edge enhancement unit. The calculation unit calculates a reduction ratio of an input image. The band limiting unit applies a low-pass filter to the input image. The reduction processing unit produces a reduced image by performing reduction processing with respect to the input image which has undergone an application of the low-pass filter by the band limiting unit using the reduction ratio calculated by the calculation unit. The edge enhancement unit sets a frequency characteristic of a bandpass filter based on a cutoff frequency used by the band limiting unit to apply a low-pass filter to the input image, and performs, using the frequency characteristic, edge enhancement processing with respect to the image reduced by the reduction processing unit.

Abstract: An apparatus according to the present invention includes a detection unit configured to detect a noise based on pixel values of a neighboring pixel group having an interval of n pixel (s) (n is an integer of 1 or more) from a target pixel and a range of m pixel(s) (m is an integer of 1 or more) and a pixel value of the target pixel, and a replacement unit configured to replace the pixel value of the target pixel with an average value of the pixel values of the neighboring pixel group if the noise is detected.

Abstract: A video processing apparatus prevents image quality degradation, while reducing motion by combining high-frequency and low-frequency image data at the immediately preceding sub-frame at a first composite ratio ?, generating first-sub-frame image data. By combining low-frequency image data and high-frequency image data at a second composite ratio 1-?, image data is generated as second-sub-frame image data. Then, the second-sub-frame image data is output with their polarity inverted with respect to the first-sub-frame image data. The ratio ? is gradually decreased frame by frame at a first frame group, and the ratio ? is gradually increased frame by frame at a second frame group subsequent to the first frame group.

Abstract: An image projection apparatus includes a calculation unit, a band limiting unit, a reduction processing unit, and an edge enhancement unit. The calculation unit calculates a reduction ratio of an input image. The band limiting unit applies a low-pass filter to the input image. The reduction processing unit produces a reduced image by performing reduction processing with respect to the input image which has undergone an application of the low-pass filter by the band limiting unit using the reduction ratio calculated by the calculation unit. The edge enhancement unit sets a frequency characteristic of a bandpass filter based on a cutoff frequency used by the band limiting unit to apply a low-pass filter to the input image, and performs, using the frequency characteristic, edge enhancement processing with respect to the image reduced by the reduction processing unit.

Abstract: There is provided an image processing apparatus comprising: an input unit configured to input a frame image; a generation unit configured to generate, from the frame image, first to Nth intermediate images; a holding unit configured to hold first to Nth sub-filters that have been generated by dividing an original filter, and relative position information of pixels referred to by each of the sub-filters; a collection unit configured to collect pixel values of pixels in an ith intermediate image (1?i?N); and a calculation unit configured to create the N sub-frame images by obtaining a pixel value of the pixel of interest in an ith sub-frame image from a calculation value obtained using the ith sub-filter with respect to the pixel values collected by the collection unit.

Abstract: A video processing apparatus in which image quality degradation, such as burn-in, is prevented while reducing motion blurs by implementing pseudo-impulse driving. By combining high-frequency image data and low-frequency image data at the immediately preceding sub-frame at a first composite ratio ?, image data is generated as first-sub-frame image data. By combining low-frequency image data and high-frequency image data at a second composite ratio 1??, image data is generated as second-sub-frame image data. Then, the second-sub-frame image data is output with their polarity inverted with respect to the first-sub-frame image data. The ratio ? is gradually decreased frame by frame at the first frame group, and the ratio ? is gradually increased frame by frame at the second frame group subsequent to the first frame group.

Abstract: An apparatus according to the present invention includes a detection unit configured to detect a noise based on pixel values of a neighboring pixel group having an interval of n pixel (s) (n is an integer of 1 or more) from a target pixel and a range of m pixel(s) (m is an integer of 1 or more) and a pixel value of the target pixel, and a replacement unit configured to replace the pixel value of the target pixel with an average value of the pixel values of the neighboring pixel group if the noise is detected.