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111results about How to "Convenient preview" patented technology

Progressive image transmission using discrete wavelet transforms

Disclosed herein is a method of storing and of progressively transferring a still image so that it can be conveniently previewed during the transfer and so that a user can terminate the transfer at an early stage if the image turns out to be undesirable. The methods of the invention include transforming the image into a plurality of decomposition levels using a discrete wavelet transform. Each decomposition level comprises a plurality of subimages which allow reconstruction of an image representation of the still image. The decomposition levels are transmitted beginning with a base decomposition level providing a low level of image resolution and then proceeding with decomposition levels providing increasingly higher levels of image resolution. Within each decomposition level, rows of the various subimages are arranged or interlaced together in contiguous blocks, so that all data for a single row, at a single decomposition level, is transmitted together. At the receiving end of the transfer, the row blocks are reconstructed and displayed as they are received. The invention enables the initial display of a low resolution image which is gradually updated and sharpened, on a row-by-row basis, until a desired high resolution is achieved. The user may terminate the transfer at any point.
Owner:MICROSOFT TECH LICENSING LLC

Video imaging preview method for video conference system

The invention provides a video imaging preview method for a video conference system. The method comprises: all original video streams are received from a television wall server and a recording-broadcasting server network interface; the original video streams are decomposed and a video key frame is extracted and transmitted to a video preview page interface through an HTTP (Hyper Text Transport Protocol) protocol; decoding is performed by an H.264 decoder to generate YUV (Luma and Chroma) data; a preview video stream module performs secondary coding to the YUV data; a preview video file is generated from an H.264 preview video stream through a preview video stream sectionalizer, wherein the H.264 preview video stream is generated through secondary coding; a video preview page distributes the module to the preview video file to request to preview the video file through the HTTP; the preview video file is decoded as YUV data through the H.264 decoder; and the YUV data is drawn into a screen through a preview video stream broadcaster. According to the invention, a user is facilitated to perform video preview to a current server video stream at an operation floor, and each video stream can be combined and spliced, so that a server output display function is perfected, and user experience is enhanced.
Owner:南京超然科技有限公司

Self-selection system and method for online courses

The invention provides a self-selection system and method for online courses, which can visually know the teacher by checking the teachers' video introduction. One can select according to the own time demand, the number of course participants can indirectly reflect the popularity of the teachers. When the number of course participants in the course reaches the set value, the display is automatically shielded, the invalid data can be filtered, and the course-selection efficiency can be improved. After the course selection is completed, all of the teachers' information of the related courses is sent to a subterminal to facilitate students' consultation, and the course information is sent to the corresponding parents' account to facilitate parents' supervision. Before the class begins, prompting messages and course links are transmitted, so that students can conveniently preview and participate the course. The image and sound data of the teaching terminal is subjected to conversion and compression, so that the video bandwidth is saved. The course participation time and online states of students' accounts are recorded, the learning states of the students can be randomly checked, and the parents can be informed to supervise the students to be conscious, so that the teachers' supervision can be shared.
Owner:福建云课堂教育科技有限公司

Intelligent television program previewing method and intelligent television

The embodiment of the invention provides an intelligent television program previewing method and an intelligent television, and relates to the technical field of display. Programs can be previewed under the situation of not interrupting the program which is currently played. The method comprises that: the intelligent television receives a first instruction inputted by a user, and a first program corresponding to a current channel is played in a main frame window according to the first instruction; the intelligent television receives a second instruction inputted by the user, and a channel list is displayed at a first predetermined position of the main frame window according to the second instruction; the intelligent television receives a third instruction inputted by the user, a sub-frame window is displayed at a second predetermined position of the main frame window according to the third instruction, and the program played in the sub-frame window is the program corresponding to another channel at which a cursor focus is currently positioned; with switching of the cursor focus among all the channels of other channels, the program corresponding to the channel at which the cursor focus is positioned is played in the sub-frame window after channel switching, and the first program of the main frame window is maintained to be continuously played simultaneously.
Owner:LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD

Anti-external force monitoring early warning method of electric transmission line based on image recognition

The invention discloses an anti-external force monitoring early warning method of an electric transmission line based on image recognition. According to the method, on the basis of an original electric transmission line remote monitoring system, an image recognition analysis module, an early warning information processing module and an early warning information display module are additionally arranged, an image recognition technology is used for analyzing data collected by a monitoring device, and the analysis result is transmitted to monitoring personnel in time in an early warning mode. The monitoring early warning method includes the following steps of (1) receiving an image, (b) preprocessing the image, (c) setting a warning trigger rule, (d) detecting a target, (e) analyzing the target, (f) conducting automatic alarm, (g) processing alarm information and (h) previewing a warning image and examining the image. The anti-external force monitoring early warning method of the electric transmission line based on image recognition has the advantages that cost is low, the image recognition method is simple, anti-external force monitoring data of the electric transmission line can be analyzed and calculated in real time, the abnormal condition on site can be subjected to quick early warning, and thus good economic benefits can be achieved.
Owner:STATE GRID CORP OF CHINA +1
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