39results about How to "Reduce unnaturalness" patented technology

In an image conversion method and apparatus, luminance Y₃ of each pixel of a converted image is obtained by use of an expression Y₃=C₁Y₁+C₂Y₂ and from luminance Y₁ of a corresponding pixel of a source image, luminance Y₂ of a corresponding pixel of a low frequency image, and C₁ and C₂ which are functions of the luminance Y₂. Since C₁+C₂ is constant when Y₂≦T₂, contrast of a low frequency component can be prevented from decreasing. In a portion in which the luminance Y₂ of the low frequency image is low, the low frequency image is enhanced. In a portion in which the luminance Y₂ of the low frequency image is high, the low frequency image is suppressed. In a method and apparatus for detecting noise level of an original signal in real time, a plurality of local regions are set on an input image in such a manner that the local regions are distributed uniformly over the entire area of an image. In each local region, determination as to whether or not luminance is saturated is performed. Variation in luminance is detected in each of a plurality of unsaturated local regions. Noise level is determined on the basis of the detected variation.

In the vehicle surroundings display device of the invention, an image processor generates an image showing the situation around a vehicle. When an obstacle is detected by an obstacle detection means, the image processor determines an image missing region using the position of the border of the obstacle on the vehicle side detected by an obstacle position detection means and fills the image missing region with substitute image data. This eliminates unnaturalness of a display image the user may feel and enables the user to accurately recognize the position of a neighboring obstacle that is important in driving operation.

A projection (projected image) is drawn by perspective projection of a three-dimensional model with a background image having improved reality. When a sightline of the perspective projection looks down from above, the projected image is drawn into an object drawing area which is a lower part of an image picture. A background layer representing the stratosphere is separately generated by two-dimensionally drawing a background image, in which the stratosphere (hatched area) is opaque, while the remaining area is transparent. The boundary between the opaque portion and the transparent portion forms a curved line that is convex upward to express a curved horizon. The background layer is superimposed in front of the projected image, not behind the projected image, thereby covering an upper edge portion of the projected image including a straight-lined upper edge, so as to provide a curved boundary realizing a curved pseudo horizon in the image picture.

An image processing apparatus and a radiation tomography apparatus capable of acquiring a tomographic image of high visibility are provided. The image processing apparatus initially generates a map m showing an extending direction of a linear structural object seen in an original image P0. Then, the apparatus generates an extrapolated image P1 by adding the area positioned at the side section of the original image P0 to the side section so as to extend the linear structural object seen in the side section by referring to the map m. By adding the side section to the original image P0 while shifting the pattern of the side section so as to extend the linear structural object seen in the side section of the image, the subject image can be naturally compensated. After this operation, by generating the tomographic image D, a tomographic image D having improved visibility can be generated.

A digital camera 1 has an image recorder 12, a microprocessor 3, and an image display controller 13. The image recorder 12 records a plurality of sequentially captured images along with a panning mode signal 60 related to the panning operation of the digital camera 1. The microprocessor 3 determines the layout of the plurality of images on the basis of the panning mode signal 60 recorded to the image recorder 12. The image display controller 13 displays a plurality of images side by side on a liquid crystal monitor 55 on the basis of the determination result of the microprocessor 3.

An information processing system includes: a game control unit configured to move a player character object in a virtual space; and a camera control unit configured to move a virtual camera together with the movement of the player character object in the virtual space. The camera control unit performs observation control of moving the virtual camera to make an object to be observed included in the visual field of the virtual camera in a case where the player character object is inside an observation performance region set to the object to be observed.

A plurality of sub-frame images are generated from an input frame image. Lightness of one or more sub-frame image included in the plurality of sub-frame images is adjusted to generate a light image and a dark image. Color-non-uniformity correction processing is performed on the light image and the dark image to reduce color non-uniformity of a display device using a correction value in accordance with an adjustment degree of the lightness.

An image processing apparatus comprises: an acquisition unit that acquires a first image obtained through shooting and distance information of the first image; a detection unit that detects a main subject from the first image; an extraction unit that extracts another subject from the first image based on the distance information of the main subject; a setting unit that sets parameters of one or more virtual light sources that emit virtual light to the main subject and the extracted other subject; and a processing unit that generates from the first image a second image in which the main subject and the other subject are illuminated with the virtual light using the parameters set by the setting unit.

In a head-mounted display for presenting a video by shielding an outside world from a field of view of a user when mounted on the user, an information presentation block presents information including audio and a moving image to the field of view of the user; a video reproduction block reproduces a video of content; a camera takes a video of the outside world; a switching block selectively switches between the video of the content and the video of the outside world and causes the selected video to be presented onto the information presentation block; and a gain control block, when the switching block switches from the video of the content to the video of the outside world, gradually increases a brightness of the video of the outside world.