173results about How to "Improve viewing quality" patented technology

Systems and methods for providing high-quality region of interest (HQ-ROI) viewing within an overall scene by enabling one or more HQ-ROIs to be viewed in a controllable fashion, as higher quality ‘windows-within-a-window’ of regions (spatial subsets) of a scene.

A method is described including receiving a streamed leading content sub-clip, determining a set of needed content sub-clips, locating one of the set of needed content sub-clips and downloading the located content sub-clip. A system for providing content-on-demand is described having a peer, a server and a tracker. The tracker may be co-located with the server. The peer includes means for receiving a streamed leading content sub-clip, means for determining a set of needed content sub-clips, means for locating one of the set of needed content sub-clips and means for downloading the located content sub-clip.

A transflective liquid crystal display having a plurality of pixels, each pixel having a plurality of color sub-pixels. Each sub-pixel comprises a reflective electrode, a transmissive electrode connected to a secondary reflective electrode. The transmissive electrode is associated with a color filter, while one only of the reflective electrode and the secondary reflective electrode is associated with a color filter. The transmissive electrode is associated with a first charge storage capacitance. The reflective electrode is associated with a second charge storage capacitance which is adjustable depending on the operating states of the liquid crystal display.

The invention relates to a caption rendering technology in a field of producing television programs, in particular to a caption rendering method based on a curve-profiled closed loop domain and a pixel mask code matrix. The method is that: after a Bezier curve vector profile of a caption object is discretized into a polygon vector, according to the direction and embordering type of a polygon, the polygon vector used for embordering is further created, thus systematically combining the computer graphics with the digital image processing, converting the vector information of the caption object into the pixel mask code matrix based on a contour line and applying the pixel mask code matrix throughout all links of the caption rendering; therefore, the effect of the caption rendering is improved, the ever-increasing demands of the caption quality and the caption effect from the television programs producing and broadcasting organizations are sufficed, the important social property of serving the mass people by television media is reflected even more directly, and better social benefits are obtained.

A transflective liquid crystal display having a plurality of pixels, each pixel having a plurality of color sub-pixels, each sub-pixel having a transmission area associated with a first charge storage capacitance and a reflection area associated with a second storage capacitance. In the sub-pixel, a data line, a first gate line, a second gate line and a common line are used to control the operational voltage on the liquid crystal layer associated with the sub-pixel. The first and second gate lines are separately set at a first state and a second state. The ratio of the first charge storage capacitance to the second charge storage capacitance can be controlled according to the states of the gate lines. The second charge storage capacitance is provided by two capacitors connected in parallel through a switching element which can be open or closed according to the states of the gate lines.

The invention discloses a fast display method for a streaming media video-on-demand seek picture. The method comprises the following steps: video-on-demand on a video file is realized; key frames are extracted from the video file according to a certain time interval, and a series of zooming pictures is generated; the generated pictures are named based on the time stamps of the key frames; a key frame index array is built; the time stamp of a playing point is recorded in real time during a playing process; with the time stamp as reference, a requested picture is displayed below the video picture; the user selects a positioning time stamp to send see request data according to the displayed picture; the video data are transmitted to an intelligent television playing end starting from an offset position; and the intelligent television player starts playing from the key frames. In comparison with the prior art, through analyzing video materials at a streaming media server to generate usable thumbnails, playing details are appointed with the player end, a user can be helped to quickly seek a required video picture, the seeing time is saved, and the seeing quality is improved.

The present disclosure provides a display device including a light emitting diode and a driving module. The driving module drives the light emitting diode. The driving module includes a first switch circuit, a second switch circuit, and a driver transistor. The first switch circuit selectively writes a gray scale voltage in a first capacitor. The second switch circuit selectively writes an offset voltage in a second capacitor. The driver transistor is coupled to the light emitting diode, the first capacitor, and the second capacitor. The driver transistor adjusts a driving current being outputted to the light emitting diode according to the gray scale voltage and the offset voltage. The gray scale voltage adjusts the voltage difference between the gate and the source of the driver transistor, while the offset voltage adjusts a threshold voltage of the driver transistor.

A near eye display system including a display screen, a graphic processing unit, a lens group, a focal length adjustment device, an interpupillary distance adjustment device, a detection unit, and a control unit is provided. Positions of a left-eye image and a right-eye image to be displayed on the display screen may be adjusted based on lateral displacement amounts of a left-eye lens and a right-eye lens, such that centers of the left-eye image and the right-eye image are respectively aligned with centers of the left-eye lens and the right-eye lens. Sizes (magnification) of the left-eye image and the right-eye image to be displayed on the display screen may be adjusted based on longitudinal displacement amounts of the left-eye lens and the right-eye lens, such that sizes of a visual left-eye image and a visual right-eye image seen by a user are identical. Operation methods thereof are also provided.

The invention relates to a flower antistaling agent with added plant growth regulator, wherein 1L of the water contains the following constituents: sucrose 5-20g, 8- hydroxyquinoline 0.1-0.5g, gibberellin 0.02-0.08g, cytokinin 0.01-0.09g, plant growth retardant 0.20-0.8g, arginine 0.015-0.045g, organic acid 0.1-0.5g and inorganic salt 0.005-1.5g.

The present invention provides a picture decoding and encoding method, a decoding and encoding apparatus, a decoder and an encoder. The picture decoding method includes the following steps that: a video code stream is analyzed, shaping parameters are obtained from the picture and / or slice layer data of the video code stream, and shaping parameters used by a restoration picture are determined according to the obtained shaping parameters, wherein the picture and / or slice layer data contain at least one of the data units of a picture and / or slice layer parameter set which is different from a picture parameter set (PPS), a parameter data unit and slice header information which are contained in an access unit (AU) corresponding to the restoration picture, and a system-layer picture parameter data unit; and the shaping parameters used for the restoration image are used to perform shaping processing on the restoration image, wherein the restoration image is an image which is obtained by decoding the video code stream before shaping processing. With the picture decoding and encoding method, the decoding and encoding device, the decoder and the encoder of the invention adopted, the problems of poor video viewing quality and large cost of the encoding of shaping parameters are in the prior art can be solved.

The present disclosure provides a method for determining a recommended video, a data processing computer server and a system. The computer server determines candidate virtual scenes, users currently participating in the candidate virtual scenes, and a user corresponding to a virtual role in the candidate virtual scenes. After selecting a target virtual scene from the candidate virtual scenes, the computer server determines representation data of virtual roles of the target virtual scene, selects a target virtual role from the virtual roles of the target virtual scene according to the representation data of the virtual roles of the target virtual scene, and generates a recommended video at a viewing angle of the target virtual role in the target virtual scene.

The present invention discloses a movement compensation time domain filtering method based on interested area. The method adopts a video diving technique for obtaining the interested region ROI. The method adopts the movement technique of interested region ROI for obtaining the movement vector tree of foreground and background. The method adopts a movement estimation technique of boundary determination for obtaining the movement patch of each pixel. The method adopts a boundary transferring technique of interested region for obtaining the boundary of each stage of low-frequency frame. The method adopts a movement compensation time domain filtering technique of interested region ROI for eliminating time domain redundancy. The former video is divided into two independent regions. Each part can be singly processed. The extensible video coding of content based on interested content is realized through the method. When the code rate is lower, the content region which is interested to the people can be allocated with more code rate. The content of foreground area is clearer for obtaining a better viewing effect.

The invention provides a self-adaptive bitstream switching method and system based on cache underflow probability estimation. The method includes the steps of 101) estimating a mean valve of video segment downloading time of each bitstream and a variance of the video segment downloading time of each bitstream at the current network conditions, 102) modeling arrival and departure of video data in a client cache into an Ek / D / 1 / N queuing model, setting parameters of the queuing model according to the mean values and the variances, and for each bitstream, utilizing the queuing model with the determined parameters to calculate the probability that cache queues are empty so as to obtain the underflow probability of each bitstream, 103) setting the underflow risk gain or loss of the current bitstream and the quality gain of each bitstream, and calculating comprehensive profit values according to the underflow risk gain or loss of the current bitstream, the quality gain of each bitsteam and the underflow probability of each bitstream when switching is performed between the bitstreams, and 104) selecting the bitstream with the highest comprehensive profit value to be switched , wherein video segments are obtained through equal duration division of copies of the bitstreams.

The invention discloses display equipment and a brightness adjusting method thereof. The brightness adjusting method comprises the step of: establishing a corresponding relation of ambient light intensity, pupil aperture and display equipment brightness; acquiring the current ambient light intensity; acquiring the current pupil apertures of human eyes; and adjusting the brightness of the display equipment according to the current ambient light intensity, the current pupil apertures and the corresponding relation. Through the brightness adjusting method, the damage of the display equipment to the human eyes can be reduced, and the picture viewing quality is improved.

In a transflective liquid crystal display comprising a plurality of pixels, each is divided into three color sub-pixels in red, green and blue. Each of the color sub-pixels is further divided into a main sub-pixel and an auxiliary sub-pixel. The main sub-pixel comprises a transflective area and a reflective area. The auxiliary sub-pixel can be entirely transmissive, reflective or partially transmissive and reflective. The liquid crystal display further comprises a plurality of first gate lines for electrically controlling the main sub-pixels and a plurality of second gate lines for electrically controlling the auxiliary sub-pixels. The auxiliary sub-pixels may have a color filter for partially filtering light encountering the auxiliary sub-pixels according to the color of the color sub-pixels.

The invention discloses a digital video image stabilization method based on multi-resolution block matching and PI (Portion Integration) control. The digital video image stabilization method comprises the following steps of: obtaining a motion vector of a selected block through an improved diamond search algorithm, and obtaining a motion parameter of an overall motion vector by using least square estimation; then substituting the motion vector in a proportional-integral controller, namely a compensation unit of a core, so as to obtain a motion compensation vector; and further carrying out motion compensation on a fluctuation video sequence. With the adoption of the digital video image stabilization method disclosed by the invention, the fluctuation video sequence is subjected to fluctuation removal, so that the accuracy of the traditional diamond rapid search algorithm is improved, and the watching quality of a video is further improved. According to the acceleration of a chasing motion, the digital video image stabilization method can better keep a cashing component of a subjective motion and a subjective cashing motion of a photographer, so that the more accurate motion vector can be obtained through the estimation; the smaller stable state error is generated; and the fluctuation phenomena including translation, rotation, amplification and the like can be compensated according to demands.

The invention discloses an image splicing method based on brightness adaptive registration, and belongs to the image processing technology field. Images to be spliced are transmitted to a brightness space, a reference image is initialized, then an image overlapping with the current reference image is selected from the images to be spliced as a current image to be adjusted, divided-interval brightness adjustment of the brightness value of each pixel point of the image to be adjusted is carried out based on the brightness addition value of each preset brightness interval, then the image after brightness adjustment is subjected to brightness smooth processing, and then the reference image is subjected to image splicing processing; if processing of the images to be spliced is not finished, the current splicing image is employed as a reference image, and image to be adjusted determination, divided-interval brightness adjustment, brightness smooth processing and splicing processing are repeated. The method is simple in calculation, the problem is solved that splicing images are not consistent in brightness under different exposure differences, and the visual quality of splicing images is raised greatly.

The invention discloses a viewpoint-based panoramic video adaptive streaming media transmission method and system. The method comprises the steps: enabling a server to divide a panoramic video into different tiles in space, coding a plurality of tile videos into a panoramic video streaming file, and carrying out the packaging and slicing of the panoramic video streaming file; and predicting a visual field area watched by the user in the future by a client by using a linear regression method according to the historical viewpoint information of the panoramic video watched by the user, and playing the predicted panoramic video. According to the historical prediction deviation degree, the visual field area is properly expanded, the high code rate is selected for the tiles in the visual field area, the low code rate is selected for the tiles in the non-visual field area, and different code rates are dynamically selected for different tiles according to the network condition change, so that the video definition in the visual field area is improved, the jamming condition is reduced, and the user watching quality is effectively improved.

The invention discloses a cut flower preservative, which contains the following components: sucrose with the final concentration between 30 and 50 g / L, 6-benzylamino adenine with the final concentration between 8 and 12 mg / L, and Triton with the final concentration between 2 and 6 mL / L, wherein pH is between 5.5 and 6.0. The cut flower preservative has the advantages of maintaining the quality of cut peach flowers, preventing the propagation of microorganisms, prolonging the vase lifespan of the peach flowers by about 1 to 4 days, improving the ornamental quality of the peach flowers and ensuring that petals are plumper and bright in color.

The invention discloses a brightness correction method, system and device and a computer readable storage medium. The method comprises the steps that a projection drawing obtained after a target projection device projects a detection drawing is determined; performing region division on the projection drawing to obtain a corresponding projection division region; determining area brightness attenuation information of each projection division area based on the brightness of the detection image and the projection image; determining pixel point brightness attenuation information of a preset numberof pixel points in the target projection equipment according to the area brightness attenuation information; and determining brightness correction information of the target projection equipment according to the pixel point attenuation information, and performing brightness correction on the target projection equipment based on the brightness correction information. According to the invention, thebrightness correction information of the target projection equipment can be quickly determined based on the projection division area, thereby achieving the quick brightness correction of the target projection equipment, and improving the watching image quality of the projection equipment. The brightness correction system and device and the computer readable storage medium provided by the inventionalso solve the corresponding technical problems.

Embodiments of the invention provide a video data processing method and apparatus. The method comprises the steps of obtaining comment information added for video data by a user; identifying emotion information expressed by the comment information; according to the emotion information, marking feature video frames in the video data; and generating feature video clips in the video data according tothe density of the feature video frames. The comment information of the user is objective existence relative to a technical staff, so that the subjectivity of marking the video data can be greatly reduced, the identification accuracy of the emotion information is improved, and the manual marking cost is greatly reduced; in addition, the feature video clips are clustered by using the density, so that the discreteness and fragments of time can be avoided, the clustered feature video clips can be ensured to have a certain continuity under the condition of ensuring the wonderfulness degree of thefeature video clips, and the watching quality is improved; and moreover, due to the clustering by using the density, complex distance calculation can be avoided and the processing speed is increased.

A touch color filter includes a substrate, a touch sensing layer, a black matrix layer, and a color filter layer. The touch sensing layer is located on the substrate. The black matrix layer is located on the substrate. A boundary of the touch sensing layer is located within a boundary of the black matrix layer. The color filter layer is located on the substrate. The touch sensing layer and the black matrix layer are located between the substrate and the color filter layer, and the color filter layer covers the touch sensing layer and the black matrix layer.

In a transflective liquid crystal display having a transmission area and the reflection area, the transmissive electrode is connected to a switching element to control the liquid crystal layer in the transmission area, and the reflective electrode is connected to the switching element via a separate capacitor to control the liquid crystal layer in the reflection area. The separate capacitor is used to shift the reflectance in the reflection area toward a higher voltage end in order to avoid the reflectance inversion problem. In addition, an adjustment capacitor is connected between the reflective electrode and a different common line. The adjustment capacitor is used to reduce or eliminate the discrepancy between the gamma curve associated with the transmittance and the gamma curve associated with the reflectance.

A system and method for extracting data from recording media scan a recording media so that a plurality of key frames and a plurality of time intervals can be extracted, wherein each of the plurality of key frames and each of the plurality of time intervals correspond to one of the scenes in the recording media. Afterwards, at least one selected key frame can be acquired. Eventually, a multimedia file can be outputted according to the selected frame. By acquisition of the plurality of key frames, the present invention allows of processing only key frames such that the amount of information needed processing can be reduced. Not all frames of the desired scenes are extracted from the recording media until a user output a multimedia file, so that the processing time for extracting data from the recording media can be concentrated in outputting multimedia files.

Systems and methods which provide Convolutional Neural Network (CNN) based synthesized view quality enhancement for video coding are described. Embodiments may comprise an encoder configured for CNN based synthesized view quality enhancement configured to provide improved coding efficiency while maintaining synthesized view quality. Additionally or alternatively, embodiments may comprise a virtual viewpoint generator configured for CNN based synthesized view quality enhancement configured provide post-processing of the synthesized view at the decoder side to reduce the artifacts. CNN based synthesized view quality enhancement may, for example, be provided for 3D video coding to improve its coding efficiency, which can be utilized in 3D scenarios, such as 3DTV.

The invention discloses a video interframe signal continuity optimizing method and system and a shooting terminal. Image enhancement is carried out on video frames of an original video to obtain an enhanced video; according to structure information of the original video, the similarity between a present video frame and a former / latter video frame of the enhanced video is calculated to obtain similarity weight of each video frame of the enhanced video; and according to the similarity weights, signal smoothing in the time domain is carried out on the video frames of the enhanced video to obtain an output video. Thus, the problem that signals in the video time domain is discontinuous is solved, a double image phenomenon can be avoided, and the video watching quality is improved.