36 results about "Mixed resolution" patented technology

A method is disclosed for mapping finger movements on a touch pad to a display screen. The method includes receiving touch data from a touch pad. The touch data identifies the absolute coordinates of one or more finger touch points on the touch pad. The method also designates a portion of the display screen as a portion mapping area. The size of the portion mapping area is less than the size of the entire display screen area. The method then maps the coordinates of the one or more finger touch points of the touch data to the coordinates of the portion mapping area. The method includes use of a primary touch pad and a secondary touch pad to generate multi-touch finger gestures.

An embodiment of the invention provides a mixture resolution encoding and decoding method. The mixture resolution encoding and decoding method comprises performing full resolution standard encoding and frame reconstruction on video frame sequence I frames which only adopt intraframe coding and obtaining reconstructed frames of the I frames; performing down sampling on the reconstructed frames of the I frames and obtaining sampling images of the reconstructed frames of the I frames; performing down sampling on non-I frames in a video frame sequence and obtaining sampling images of the non-I frames; performing standard encoding on the sampling images of the non-I frames with the sampling images of the reconstructed frames of the I frames which are corresponding to the non-I frames serving as reference frames; sending video code frames which comprise the I frames and non-I frames which are obtained through encoding. The invention also discloses a corresponding mixture resolution encoding and decoding device. According to the mixture resolution encoding and decoding method and device, encoding and decoding calculation complexity can be reduced and encoding and decoding speed and efficiency are greatly improved.

A system and method of compressing a video signal can include the steps of: receiving a video signal, the video signal including frames; analyzing, for each frame, the video signal on a macroblock-by-macroblock level; determining whether to downsample a macroblock residual for each of the macroblocks; selectively downsampling a macroblock residual for some of the macroblocks; and coding the macroblocks. A system and method of decompressing a video signal can include the steps of receiving a compressed video signal, the video signal including frames; analyzing, for each frame, the video signal on a macroblock-by-macroblock level; determining whether to upsample a macroblock residual for each of the macroblocks; selectively upsampling a macroblock residual for some of the macroblocks; and decoding the macroblocks.

A system and method of displaying a first part of a view captured by two or more image sensors in one or more first pixel resolutions, and a second part of a view captured by such image sensors in a second one or more pixel resolutions.

For providing a technology for preferably achieving high resolution of video signals of a video signal or moving video, with a small number of frames thereof, a video signal processing apparatus comprise an input unit to be inputted a plural number of video frames, a resolution converter unit, having resolution converting characteristics differing from each other, depending on a direction thereof, by composing 2 pieces of the video frames from the inputted video frames, thereby increasing a number of pixels making up the video frames, and a mixer unit for obtaining the output video frame by mixing output results of the resolution converter unit.

An incremental printer, such as for example an inker printer, produces very small markings (as for example by firing small ink droplets) preferably in a single-pass print mode for text, as well as image applications if desired, to achieve addressable print resolution at least four times higher in the carriage scan axis than in the media advance axis. More preferably the resolution in the scan axis is at least six times, ideally eight times, higher than that in the media advance axis. A preferred form of the invention uses 96 dots / mm (2400 dpi) resolution in the scan axis, in conjunction with only 12 dots / mm (300 dpi) resolution in the media advance axis, without having to employ any dot-depletion algorithms. In one embodiment, the system provides a single-pass color print mode wherein primary colors are printed with eight color droplets of the same primary color in eight adjacent sub-pixels on the 300x2400 grid, and secondary colors are printed with eight color droplets of different primary colors in eight adjacent subpixels on the same grid. One implementation uses a pen with a single tab-head assembly, with nozzles in plural parallel staggered columns, receiving ink from plural different ink reservoirs. Two such pens provide four inks for color inker printing. Three or more such pens enable a printing system to supply ink of plural dilutions for at least one of the ink colors in the system, and thereby facilitate photographic-quality printing.

The invention belongs to the technical field of computer vision, and particularly provides a video super-resolution method based on a convolutional neural network and mixed resolution. The method comprises the following steps of firstly, prediorically revsering a part of frame in a video sequence to serve as high-resolution frame data, subjecting other frames to degradation processing to serve aslow-resolution image frames, and combinding the two frames are to form a hybrid resolution video; secondly, training a degradation network based on the convolutional neural network to extract featureinformation of a degradation factor, and obtaining a degradation feature map of the low-resolution image frame by using the trained model; and then, taking the low-resolution image frame and the high-resolution frame and degradation feature map related to the low-resolution image frame as input data, performing training based on a convolutional neural network to obtain a super-resolution network model, and obtaining an output high-resolution video. The convolutional neural network and the hybrid resolution model are combined, and image texture details and degradation factors can be analyzed ina targeted manner, so that the super-resolution accuracy is improved.

The present invention is a method and system for mixed resolution, multi-channel color image processing including compression, transmission and decompression. The color information is defined at a lower resolution since colors generally do not change at a high frequency and higher compression ratios may be obtained with the lower resolution. The edge information contains the commands switch between the foreground and background colors. The edge information occurs at high resolution and high frequency rates relative to the color information. The lower resolution color planes can be pixel replicated to the resolution of the edge information after compression and decompression for proper edge selection to occur. The resulting reconstructed image of foreground and background colors retains high detail.

The present invention discloses a technique for making mixed resolution image which can be directly outputted. It is characterized by that it adopts an upwards processing or downward processing mode, on an existed or after-generated transparent layer makes linear or non-linear lens distribution structure diagram with mixed resolution. Said lens distribution structure includes lens matrix, pin hole matrix, lens column or slit column, it possesses any lens form or any arrangement combination. The image made up by adopting invented technique has highest resolution, and has good vision effect.

A system utilizing two or more display units with different resolutions are combined such that the geometry of images displayed across the multiple display units is preserved and the image appears to be substantially continuous to a viewer of the image. Compatibility of the sizes of image elements on different display units is achieved by using display unit-specific scaling to compensate for the different pixel sizes on the individual display units.

A hybrid-resolution panoramic VR generator places High-Resolution (HR) patches from a ring of HR cameras onto a 360-degree Low-Resolution (LR) image from a LR camera pointing upward from the ring into a panoramic mirror that captures the combined field of view of all the multiple HR cameras, but at a lower resolution. Ghosting artifacts caused by parallax errors between adjacent HR cameras are eliminated because object placement is determined by the 360-degree LR image. Each HR image is homographicly projected into 3 projections by grouping objects of different depths to obtain homographic matrixes. The 360-degree LR image is upscaled to HR and a query patch is searched in search windows in the three projections for up to two adjacent HR images. Best-matching patches are weighted by similarity with the query patch and blended to generate a reconstructed patch placed at the query patch location in a reconstructed HR panorama image.

A hybrid-resolution panoramic VR generator places High-Resolution (HR) patches from a ring of HR cameras onto a 360-degree Low-Resolution (LR) image from a LR camera pointing upward from the ring into a panoramic mirror that captures the combined field of view of all the multiple HR cameras, but at a lower resolution. Ghosting artifacts caused by parallax errors between adjacent HR cameras are eliminated because object placement is determined by the 360-degree LR image. Each HR image is homographicly projected into 3 projections by grouping objects of different depths to obtain homographic matrixes. The 360-degree LR image is upscaled to HR and a query patch is searched in search windows in the three projections for up to two adjacent HR images. Best-matching patches are weighted by similarity with the query patch and blended to generate a reconstructed patch placed at the query patch location in a reconstructed HR panorama image.

The invention discloses a method for coding and decoding an audio signal, which comprises a coding step and a decoding step. The method adopts a policy of mixed resolution coding of different frequency resolutions of high and low frequency ranges, so that higher cut-off frequency can be acquired based on not changing the prior broadband frequency spectrum coding framework; because only the high frequency part corresponding to the audio signal is conducted with a processing of reducing the frequency resolution, the coding tone can be furthest guaranteed on the premise of reducing requirement of coding bit, so that the tone effect which is difficult to fulfill for general parameter coding can be received. The invention can be completely applied without changing the coding / decoding architecture, so the invention has the widest general applicability.

The invention relates to a video coding method and device, a video decoding method and device, computer equipment and a storage medium. The method comprises the following steps of acquiring an input video sequence when video coding is carried out; acquiring a target video sequence coding mode corresponding to the input video sequence from a candidate video sequence coding mode, wherein the candidate video sequence coding mode comprises a constant resolution coding mode and a mixed resolution coding mode; and coding each input video frame of the input video sequence according to the target video sequence coding mode in order to obtain coded data. According to the method, the target video sequence coding mode of the input video sequence can be flexibly selected, the resolution of the input video sequence can be adaptively adjusted, and the video coding quality can be improved under a condition that the bandwidth is limited.

The invention discloses a mixed-resolution sparse dictionary learning-based image super-resolution method. The method comprises a dictionary training process and an image super-resolution reconstruction process. In the dictionary learning process, a dictionary is generated by performing random sampling on training sample images, and similar operation is repeated to obtain dictionaries with different resolutions. In the image super-resolution reconstruction process, the images are subjected to multi-resolution sparse expression based on the mixed-resolution dictionaries, specifically texture information richness in the images is judged through a variance, image blocks with rich texture information are subjected to super-resolution reconstruction by using the low-resolution dictionary, and image blocks with relatively non-rich texture information are reconstructed by using the high-resolution dictionary. The object edges in the images can be sharpened and the texture information of the images can be enhanced; and the smooth and blurring effects of the super-resolution enlarged images are reduced.

The present application provides a mixed resolution, interleaving-based, cross-channel data flow and data format for a printer image path. The architecture provides pixel data for a colorant of a given writing channel at its nominal (full) resolution, while pixel data for other colorants is provided at lowered resolution. Pixel data for a primary channel at its full resolution is interleaved with data for other secondary channels at lower resolution. Known sub-sampling or compression techniques can be used to lower the resolution of the secondary channels. The data at the different resolutions is generated by the digital front end (DFE), which distributes the data for each writing channel at the time it is needed. Preferably, the low resolution data is sent first to the writer, followed by high resolution data, so that data buffering is minimized.

The invention discloses a half-quantity resolution method of a racemic mixture of a tetrahydroisoquinoline type compound. The half-quantity resolution method comprises the following steps: dissolving hydrochloride of the tetrahydroisoquinoline type compound into water and alkalifying under an alkaline condition to obtain the racemic mixture; dissolving the racemic mixture into a polar solvent; under a heating condition, enabling the racemic mixture to react with a single half-quantity resolution agent N-acyl-D-amino acid or D-diphenylacyl tartaric acid, so as to form salt; or after enabling the racemic mixture to react with the resolution agent N-acyl-D-amino acid for a period of time, adding the other resolution agent D-diphenylacyl tartaric acid and reacting to form the salt; after reacting, slowly cooling and crystalizing and carrying out a post-treatment process, so as to directly obtain R configuration tetrahydroisoquinoline type compound salt with high optical purity. According to the half-quantity resolution method, the half quantity of the mixed resolution agent or the half quantity of the single resolution agent is utilized, so that the dosage of the resolution agent is saved; recrystallization is not needed and a design is reasonable; the preparation method is simple and convenient and has high practicability; the total yield of an R configuration product can reach 83.25 percent at maximum and the purity can reach 97 percent or more at maximum.

Method and apparatus are provided for recovering a pruned version of a picture in a video sequence is disclosed. An apparatus includes a pruned block identifier (610) for identifying one or more pruned blocks in the pruned version of the picture. The apparatus further includes a metadata decoder (615) for decoding metadata for recovering the pruned version of the picture. The metadata includes position information of the one or more replacement blocks. The apparatus also includes a block restorer (620) for respectively generating one or more replacement blocks for the one or more pruned blocks.

The invention provides a video processing method and device and a storage medium. The method comprises the following steps: encoding and decoding an original video to obtain a mixed resolution video, wherein the mixed resolution video comprises a first resolution frame and a second resolution frame corresponding to a key frame, and further comprises a third resolution frame corresponding to a non-key frame, wherein the resolution of the first resolution frame is higher than the resolution of the second resolution frame and the resolution of the third resolution frame; and according to the first resolution frame and the second resolution frame, amplifying a third resolution frame corresponding to the non-key frame and outputting an amplified video, wherein the amplified video comprises the first resolution frame corresponding to the key frame and an amplified target frame corresponding to the non-key frame. According to the scheme, for the non-key frame, the low-resolution frame is obtained only by encoding and decoding, then the low-resolution frame is amplified according to the information of the key frame, the amplified high-resolution video is obtained with less code stream, and the bandwidth pressure of video transmission is reduced.

A system and method of compressing a video signal can include the steps of: receiving a video signal, the video signal including frames; analyzing, for each frame, the video signal on a macroblock-by-macroblock level; determining whether to downsample a macroblock residual for each of the macroblocks; selectively downsampling a macroblock residual for some of the macroblocks; and coding the macroblocks. A system and method of decompressing a video signal can include the steps of receiving a compressed video signal, the video signal including frames; analyzing, for each frame, the video signal on a macroblock-by-macroblock level; determining whether to upsample a macroblock residual for each of the macroblocks; selectively upsampling a macroblock residual for some of the macroblocks; and decoding the macroblocks.

Method and apparatus are provided for recovering a pruned version of a picture in a video sequence is disclosed. An apparatus includes a pruned block identifier for identifying one or more pruned blocks in the pruned version of the picture. The apparatus further includes a metadata decoder for decoding metadata for recovering the pruned version of the picture. The metadata includes position information of the one or more replacement blocks. The apparatus also includes a block restorer for respectively generating one or more replacement blocks for the one or more pruned blocks.

The invention discloses an image mixing super-resolution method based on adaptive texture distillation. The image mixing super-resolution method mainly comprises the following steps: constructing a low / high mixing resolution image pair data set required for training a neural network; constructing a required self-adaptive texture distillation network; training and testing the adaptive texture distillation network by using the data set to obtain a trained neural network model; and reconstructing a mixed super-resolution image from the low-mixed-resolution image by using the trained network model. According to the method, the low-mixed-resolution image is used, so that the data volume is saved, and more image details can be reserved; the self-adaptive texture distillation network processes true and false textures respectively, and a mode of weighting multiple weights is adopted to make full use of features of different levels, so that the quality of a super-resolution reconstructed image is better.

A method and apparatus is presented for obtaining high resolution positional feedback from motion stages 52 in indexing systems 10 without incurring the costs associated with providing high resolution positional feedback from the entire range of motion by combining low resolution / low cost feedback devices 72 with high resolution / high cost feedback devices 74, 76, 78, 80, 82, 84, 86, 88.

The embodiment of the present invention discloses that the embodiment of the present invention provides a mixed-resolution encoding and decoding method, the method includes: performing standard full-resolution encoding on the I frame in the video frame sequence that only adopts intra-frame encoding and performing frame Reconstruct and obtain the reconstructed frame of the I frame; down-sample the reconstructed frame of the I frame to obtain a sampled image of the reconstructed frame of the I frame; down-sample the non-I frame in the video frame sequence to obtain the The sampled image of the non-I frame; the sampled image of the reconstructed frame of the I frame corresponding to the non-I frame is used as a reference frame to perform standard encoding on the sampled image of the non-I frame; a video code stream is sent, and the video code stream includes The encoded I frame and non-I frame. The embodiment of the invention also discloses a mixed resolution coding method and a corresponding codec device. By adopting the present invention, the computational complexity of encoding and decoding can be reduced, and the speed and efficiency at both ends of encoding and decoding can be greatly improved.

The invention discloses a mixed-resolution multi-view video super-resolution method based on low-rank prior information, and belongs to the technical field of image and video processing. The mixed-resolution multi-view video is composed of multiple paths of multi-view videos and comprises multiple paths of low-resolution videos and multiple paths of high-resolution videos, and the proposed super-resolution method aims to reconstruct the low-resolution videos by using texture and other information of the high-resolution videos and take the low-rank prior of the image video as a constraint condition at the same time. According to the method, a new hybrid multi-view super-resolution method is provided, the method considers that a plurality of similar information is contained among multi-viewvideos, the method makes full use of texture and other information of high-resolution videos based on the idea of manifold embedding, and noise is suppressed by using low-rank prior information. According to the method, the texture and other information of the high-resolution video are fully utilized, the noise is effectively suppressed, and the low-resolution video is effectively reconstructed.