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Holographic touch interactive exhibition system with multisource input and intelligent information optimizing functions

The invention discloses a holographic touch interactive exhibition system with multisource input and intelligent information optimizing functions. The system senses surrounding environment information by the aid of a plurality of sensors, a smoke sensor is started to monitor fire without audiences, faces in videos are recognized when the audiences are present, proper broadcasting information is recommended, and the identity sense of customers is enhanced. The exhibition system introduces an interactive mode, and the audiences can realize man-machine interaction by the aid of a holographic touch screen to acquire information that the audiences want to know. Besides, by the aid of an intelligent information mining algorithm and features extracted by a color co-occurrence matrix, finding of a facial expression recognition area of interest and feature extraction are combined into one step, the faces are clustered by the aid of an affinity propagation clustering algorithm, and the broadcasting information is changed according to emotion. By the aid of the exhibition system, the information can be effectively pushed according to ages and genders of the audiences in a complicated background environment, sufficient exhibition can be realized, the audiences can be guided to more comprehensively know the information, and the identity sense of the audiences is enhanced.
Owner:JIANGSU MINGWEI WANSHENG TECH CO LTD

Method and system for controlling playback of a video program including by providing visual feedback of program content at a target time

InactiveUS20100150520A1Minimizes and reduces computational overheadMinimizes and reduces and communication bandwidthTelevision system detailsElectronic editing digitised analogue information signalsThumbnailTime line
In a class of embodiments, a method for controlling playback of a video program by a media player including by providing visual feedback (referred to as a thumbnail) indicative of content of the program at a target location, a media player configured to perform any embodiment of the method, and a computer readable medium which stores code for implementing any embodiment of the method. Preferably at least one thumbnail is displayed and updated in real-time during playback of the program. Typically each thumbnail is a compressed or reduced-scale version of a frame of the program at, or a representative image of a segment of the program including, the target location. Typically, the thumbnail is an element of a displayed timeline control also including a timeline and an icon, position of the icon along the timeline indicates the target location, and the icon is movable along the timeline in response to user selection of different target locations (typically by asserting commands to the media player using a mouse or other input device). Preferably, data determining each thumbnail are computed prior to playback of the program, and the data and the program are stored prior to playback of the program.
Owner:DOLBY LAB LICENSING CORP

Field encyclopedia establishment system based on general encyclopedia websites

The invention belongs to the technical field of open knowledge extraction and specifically relates to a field encyclopedia establishment system based on general encyclopedia websites. The system is divided into a plurality of modules, namely an encyclopedia data crawling module, an encyclopedia data preprocessing module, a related entity searching and ranking module and an entity clustering module. The field encyclopedia establishment system based on the general encyclopedia websites has the following beneficial effects: the field encyclopedia is mostly established manually at present, which takes time and labor, and as all related entities cannot be found out manually, the coverage rate is low; instead, the field encyclopedia is established on the basis of the field related entities found out by the field encyclopedia establishment system, and in this way, the labor of establishing the field encyclopedia can be greatly reduced and the coverage rate can be greatly increased; meanwhile, the field encyclopedia established by the field encyclopedia establishment system is greatly convenient for users to obtain the knowledge in specified fields; complex searching and screening processes are omitted, and the pattern that a user passively searches for information is changed into the pattern that the system initiatively provides information.
Owner:FUDAN UNIV

High-color rendering property multispectral LED light source, exhibition lighting lamp of museum exhibits and exhibits arrangement and lighting method

The invention provides a high-color rendering property multispectral LED light source, which comprises an LED light source chip, a light source installation substrate and an LED drive module. The multispectral LED light source is provided with dozens of different LED light source chips; each LED light source chip has different spectral wavelength and spectral bandwidth; and the LED drive module is provided with a power supply module, a microprocessor module, a multichannel separation module and a computer interface module. The invention further provides an exhibition lighting lamp of museum exhibits and an exhibits arrangement and lighting method. The high-color rendering property multispectral LED light source has the characteristics that the multispectral LED light source has high color rendering property and sensitive spectrums of cultural relics exhibits are avoided; the photo-oxidation action in exhibition can be avoided or reduced; precision control on light intensity of different bands in a lighting source can be achieved through a spectral independent drive technology and a multispectral light source test and automatic control system; the high-color rendering property multispectral LED light source adapts to the requirements of different cultural relics; the influence of the light source on the cultural relics is reduced while the color rendering property of the light source is ensured and the cultural relics exhibits are fully displayed.
Owner:杭州新叶光电工程技术有限公司

Etching agent for inspecting dissimilar steel welding joint structure and using method thereof

The invention discloses an etching agent for inspecting a dissimilar steel welding joint structure and a using method thereof. The etching agent comprises the following components, by mass, of 1%-8% of ferric chloride, 1%-9% of sodium chloride, 8%-30% of concentrated nitric acid and 53%-90% of phosphoric acid. The use method of the etching agent sequentially comprises the following steps that according to the proportion, the reagents are weighed correspondingly and are uniformly stirred; the etching agent is dipped to wipe the polishing surface of a sample, when the polishing surface becomes gray, the sample is washed out and dried; the etched sample is placed under light field lighting of an optical microscope to be observed. According to the etching agent and the using method thereof, reagent composition is simple and safe, and the long-term stable effective effect is achieved; and through one-time etching, microscopic structure morphologies of all areas of T91/92 and the austenitic heat-resistant stainless steel welding joint can be simultaneously, clearly and truly displayed without false appearance, the structure details are completely displayed, and observation equipment is simple and does not have special requirements.
Owner:DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP

Optimal tracking method and system for automatic identification image of remote education teacher

The invention discloses an optimal tracking method and system for an automatic identification image of a remote education teacher. The method comprises the following steps of video data acquisition, target framing, foreground extraction target identification, adjustment parameter determination, video simplified compression and the like; the system comprises a video acquisition module, a storage module, a teacher target framing processing module, a foreground extraction module, a data modeling module, a pixel classification module, a teacher target generation module, a position calibration module, an adjustment parameter generation module, a video data compression processing module and a communication module. According to the method and the system, a teacher target in a video image can be accurately extracted, the acquisition angle and the direction of a video are synchronously adjusted according to the movement of the target, and the image of the teacher target can be clearly and completely acquired all the time, so that the data volume in the video transmission is reduced, the accurate effectiveness of the teacher target information is ensured, and the higher practical value and the wide application prospect are provided.
Owner:HEFEI SIBOT SOFTWARE DEV CO LTD
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