H04N7/0132

VIDEO SOURCE DEVICE, DISPLAY DEVICE, AND VIDEO DISPLAY SYSTEM
20190158781 · 2019-05-23 ·

A video display with high image quality is achieved even when a frame cycle varies for each frame. A video display system includes a video source device 11 which outputs a video signal and a display device 12 which displays a video based on a video signal output from the video source device 11. The video source device 11 includes a drawing time prediction unit 104 and a transmitting unit 102. The drawing time prediction unit 104 calculates frame interval information indicating an interval from when a video signal of a first frame is output to when a video signal of a second frame to be a next frame of the first frame is output. The transmitting unit 102 transmits the frame interval information calculated by the drawing time prediction unit 104 to the display device 12.

IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREFOR, IMAGE DISPLAY APPARATUS, AND COMPUTER READABLE STORAGE MEDIUM
20190158780 · 2019-05-23 ·

An image processing apparatus includes: input means for inputting a frame image; generation means for generating a plurality of sub-frame images from the frame image input by the input means; image processing means for changing a brightness and spatial frequency component of a first sub-frame image out of the plurality of sub-frame images to be different from a brightness and spatial frequency component of a second sub-frame image out of the plurality of sub-frame images; and output means for outputting the first sub-frame image and the second sub-frame image.

Video source device, display device, and video display system
10237516 · 2019-03-19 · ·

A video display with high image quality is achieved even when a frame cycle varies for each frame. A video display system includes a video source device 11 which outputs a video signal and a display device 12 which displays a video based on a video signal output from the video source device 11. The video source device 11 includes a drawing time prediction unit 104 and a transmitting unit 102. The drawing time prediction unit 104 calculates frame interval information indicating an interval from when a video signal of a first frame is output to when a video signal of a second frame to be a next frame of the first frame is output. The transmitting unit 102 transmits the frame interval information calculated by the drawing time prediction unit 104 to the display device 12.

Image processing device, image processing method and recording medium for reducing noise in image
10200649 · 2019-02-05 · ·

An image processing device comprising: a recording unit configured to record a previous frame image input before a target frame image that is to be a processing target or an output frame image from the previous frame image; an alignment unit configured to align the target frame image with the previous frame image or with the output frame image from the previous frame image; a correction unit configured to perform a temporal correction process to correct a pixel value of the target frame image by use of a pixel value of the previous frame image or a pixel value of the output frame image from the previous frame image that has been aligned by the alignment unit, with reference to the recording unit; and a generation unit configured to generate an output frame image from the target frame image by use of the target frame image corrected by the correction unit.

IMAGE PROCESSOR, IMAGE PROCESSING METHOD, AND PROGRAM
20180324344 · 2018-11-08 ·

An image processor of the disclosure includes a detector that detects a flicker component in first image data on the basis of a plurality of pieces of first image data in a stream. The stream includes, at least, the plurality of pieces of first image data having first exposure time and a plurality of pieces of second image data having second exposure time. The stream is provided with a temporally-alternate arrangement of the first image data and the second image data. The second exposure time is different from the first exposure time.

Photometric stabilization for time-compressed video

Photometric stabilization for time-compressed video is described. Initially, video content captured by a video capturing device is time-compressed by selecting a subset of frames from the video content according to a frame sampling technique. Photometric characteristics are then stabilized across the frames of the time-compressed video. This involves determining correspondences of pixels in adjacent frames of the time-compressed video. Photometric transformations are then determined that describe how photometric characteristics (e.g., one or both of luminance and chrominance) change between the adjacent frames, given movement of objects through the captured scene. Based on the determined photometric transformations, filters are computed for smoothing photometric characteristic changes across the time-compressed video. Photometrically stabilized time-compressed video is generated from the time-compressed video by using the filters to smooth the photometric characteristic changes.

Projection image display apparatus

The projection image display apparatus includes a display element that emits image light generated by modulating light from a light source based, a pixel-shifter that shifts a pixel of a projected image by changing an optical path of the image light, a resampling circuit, a motion-interpolation image processing circuit, and a pixel-shift controller. The resampling circuit generates a plurality of sub-frame image signals having a resolution of the display element, by resampling an image signal having a resolution of the projected image. The motion-interpolation image processing circuit provides a motion-interpolation image process to the sub-frame image signals. The pixel-shift controller receives the sub-frame image signals having undergone the motion-interpolation image process. The pixel-shift controller drives the display element and the pixel shifter at a given timing based on the sub-frame image having undergone the motion-interpolation image process, and then displays the projected image, which involves pixel-shift, on a screen.

Photometric Stabilization for Time-Compressed Video

Photometric stabilization for time-compressed video is described. Initially, video content captured by a video capturing device is time-compressed by selecting a subset of frames from the video content according to a frame sampling technique. Photometric characteristics are then stabilized across the frames of the time-compressed video. This involves determining correspondences of pixels in adjacent frames of the time-compressed video. Photometric transformations are then determined that describe how photometric characteristics (e.g., one or both of luminance and chrominance) change between the adjacent frames, given movement of objects through the captured scene. Based on the determined photometric transformations, filters are computed for smoothing photometric characteristic changes across the time-compressed video. Photometrically stabilized time-compressed video is generated from the time-compressed video by using the filters to smooth the photometric characteristic changes.

Electronic device and image displaying method thereof for catching and outputting image stream

An electronic device and an image displaying method are disclosed. The electronic device mainly comprises a sensing module, a signal processor and a display. The sensing module catches a plurality of first images with a first frequency or a first period or catches a plurality of second images with a second frequency or a second period. The signal processor receives the second images and outputs a plurality of third images correspondingly. The display presents the first images or the third images.

VIDEO DISPLAY DEVICE AND CONTROL METHOD
20180184042 · 2018-06-28 ·

Provided is a video display device wearable on the head of a user, wherein the video display device includes a video display unit capable of switching two or more display methods, a control unit for indicating a display method to the video display unit, a first detection unit for detecting the motion of the head of a user, a second detection unit for detecting the motion of the point of view of the user, and a motion determination unit for determining the motion state of the device user by using the output from the first detection unit and the output from the second detection unit. The control unit indicates a change of display methods to the video display unit in accordance with the determination result of the motion determination unit.