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111results about How to "Meet visual needs" patented technology

Method for realizing multi-screen playing video

The invention provides a method for realizing multi-screen playing video, comprising steps: finishing the connection and management of plural video cards and display devices; the computer reading the display resolution gross data and the number of the display device, recording the relative position number of respective display device; CPU calculating a dividing way of an entire video image frame based on the quantity of the display device and the number of the relative position, determining the display device number and the divided zoom ratio corresponding to respective divided original resolution video image data block; CPU dividing each frame video image data of the multi-screen playing video file to plural original resolution video image data blocks based on the dividing mode, transmitting each data block to the corresponding display card by a bus; each display card processing zoom to the original resolution video image data block according to the zoom ratio and displaying on the display device. The invention improves the refreshing rate of the multiple-screen playing, reduces the CPU occupation resource and achieves the real time playing effect.
Owner:GUANGDONG VTRON TECH CO LTD

Children cognitive system based on augment reality technology and cognitive method

The invention discloses a children cognitive system based on augment reality technology and a cognitive method. The children cognitive system based on the augment reality technology comprises an image information input module, an image information matching module, a drawing model module and a voice recognition module. A set of recognition identifications are developed through interfaces of an ARToolkit augment reality development kit, a Microsoft Speech SDK voice recognition engine, a 3D max modeling tool and the like, and a children cognitive platform performs simple interaction with a virtual scene in a computer through voice recognition. Operations like moving, amplifying and contracting a model are achieved through OpenGL image processing technology and 3D modeling technology. The children cognitive system based on augment reality technology and the cognitive method have the advantages of being short in development cycle, good in maintenance, good in portability and easy to modify. In addition, a user can use the cognitive system based on augment reality technology and the cognitive method to write a literary handbook, good learning effect is achieved, and the cognitive platform which is strong in interaction is provided for a child to use an augment reality application system.
Owner:ALIGHT TECH CO LTD

Method and device for switching interfaces between application programs

The invention is applicable to the field of application program interface switching, and provides a method and a device for switching interfaces between application programs. The method comprises the following steps of: judging whether a new application program needs to be started; and if the new application program needs to be opened, processing a first interface and a second interface according to a predetermined three-dimension-like (3D-like) transition strategy, wherein the first interface corresponds to a started application program and the second interface corresponds to an application program to be started. By the method and the device, a 3D-like overturning effect is added to a transition effect of switching the interfaces between the application programs according to the predetermined 3D-like transition strategy.
Owner:TCL CORPORATION

Pixel-level image authentication, tampering detection and restoration method

The invention discloses a pixel-level image authentication, tampering detection and restoration method. According to the method, different types of pictures are processed by discriminating picture categories; restoration watermark information is generated through Hamming codes and the compression principle; hash values generated in advance serve as authentication watermark information; positioningwatermark information is generated by disturbing picture pixel points; authenticity verification is performed on extracted data information through comparison; positions of tampered pixel points aredetected by comparing flag bits; and fuzzy restoration is performed on tampered images through error correction codes. Through the method, security protection can be performed on any grayscale image or color image; and a change with arbitrary granularity in an image can be detected, and the tampered pixel points can be positioned. By use of the method, authenticity verification can be performed onimages in arbitrary forms, such as scanning images, handwritten signatures and electronic files, and then pixel-level detection and restoration can be performed on the tampered images.
Owner:NANKAI UNIV

Image restoration method and system based on angle perception block matching

The invention discloses an image restoration method and system based on angle perception block matching, and the method comprises the steps: dividing a to-be-restored image into a target to-be-restored area and a source area, and carrying out the curved surface fitting; then, determining a to-be-filled target block with the highest priority; rotating a matching block most similar to the target block in the source region, and obtaining an optimal matching block by using angle perception; and finally, filling a to-be-repaired area in the target block, and updating the confidence value of the filled pixel point; and repeating the above steps until the to-be-repaired area is completely filled. According to the method, the optimal spatial position is sensed by using the angular rotation of the matching block, so that the image content including the color, the texture and the geometric shape of the defect area is recovered to the maximum extent, and the visual requirement of human beings can be well met. The method can be successfully applied to image restoration of various large-area damaged areas with complex textures and geometrical structure characteristics, and can also be effectively applied to the aspects of shielding object removal, target object moving and the like.
Owner:SHANDONG NORMAL UNIV

Method for setting retro-reflecting system of long and big tunnel of expressway

The invention relates to the technical field of long and big tunnels of expressways, in particular to a method for setting a retro-reflecting system of a long and big tunnel of an expressway. The method for setting the retro-reflecting system of the long and big tunnel of the expressway comprises the following steps of dividing the long and big tunnel into an entrance section, a transitional section, a middle section, a middle warning section and an exit section in sequence; respectively using combinations of an intermediate frequency reflective ring, an intermediate frequency side wall inducement sign, a high frequency delineator and a high frequency road stud at the entrance section and the exit section; using the combination of the intermediate frequency reflective ring, an intermediate frequency reflective stripe, the intermediate frequency side wall inducement sign, the high frequency delineator and the high frequency road stud at the transitional section; using the combination of a low frequency reflective ring, a low frequency note mark line, the intermediate frequency reflective stripe, the intermediate frequency side wall inducement sign, the high frequency delineator and the high frequency road stud at the middle section; continuously arranging two colored reflective rings as the middle warning section in the middle section; and arranging rhythm type information, the colored reflective ring and a colored reflective stripe on the side wall as a fatigue awakening area every three warning sections. The method for setting the retro-reflecting system of the long and big tunnel of the expressway is applied to expressway tunnels with limited speeds of 60-80 km/h and lengths of larger than 1000 m.
Owner:WUHAN UNIV OF TECH

Air fryer reliable in control

ActiveCN110876567AGuaranteed effective use of the areaGuaranteed Proportional DemandCooking-vessel lids/coversLighting elementsEngineeringGravity center
The invention relates to an air fryer stable in control. The air fryer comprises a base and a cover body hinged to the base. A fyer assembly is arranged in the machine base. The fryer assembly comprises an inner pot. A hot air assembly is arranged in the cover body, the hot air assembly comprises an air guide plate, a fan and a heating piece. The fan and the heating piece are positioned below theair guide plate; a transparent visual window is arranged on the cover body, the center of the hot air assembly deviates from the center of the fryer assembly, the distance between the center of the hot air assembly and the hinge center is smaller than the distance between the center of the fryer assembly and the hinge center, and the visual window surrounds the hot air assembly and is located above the inner pot. The hot air assembly is far away from a user relative to the fryer assembly, the area of the visual window located on one side of the user is enlarged, and therefore the user can visually observe the interior of the fryer assembly through the visual window. Meanwhile, the heights of the cover body and the whole air fryer can be effectively reduced, the gravity centers of the coverbody and the whole air fryer are reduced, and when the cover body is opened or closed, the whole air fryer is stably operated.
Owner:JOYOUNG CO LTD

Video frame data dual-authentication and hierarchical encryption method based on blockchain

The invention discloses a video frame data dual-authentication and hierarchical encryption method based on a blockchain. The method comprises the steps of generating a digital signature of the video frame data through a public key and a hash algorithm (such as SM2 and SM3); embedding a digital signature in a frequency domain based on a code of a relative size, so that offline verification is realized; storing the digital signature in the blockchain to realize online verification; and realizing hierarchical encryption of video frame data through control of a bit plane. According to the method,hierarchical encryption, digital signature embedding and verification can be carried out on an H.264 coded video; only one file needs to be stored, and the decryption effect of multiple definitions ofthe video can be achieved. By utilizing the method and the device, the video file can be encrypted, the content privacy is protected, meanwhile, a preview function is provided, and videos with different definitions can be obtained by decryption at different permission levels. Dual authentication mechanisms (online verification, offline verification) provide authenticity and integrity detection ofvideo files.
Owner:NANKAI UNIV

Planar special-effect graph user interface system of mobile phone and method

The invention discloses a planar special-effect graph user interface system of a mobile phone, which comprises a user interface resource module, a man-machine interface module, a planar special-effectprocessing module, and a playing special-effect module, wherein the user interface resource module accumulates user interface resource pictures; the man-machine interface module detects user operation instructions and calls the pictures in the user interface resource module; the planar special-effect processing module performs arrangement processing on the pictures, arranges the pictures according to a logic sequence arrangement and stores the pictures in a memory; and the playing special-effect module calls a standby resource file and plays the pictures after the arrangement processing according to the logic sequence. The system and the method perform the treatments of reduction, enlargement, distortion, discoloring and shifting arrangement on the user interface resource pictures throughthe planar special-effect processing module, and arrange the pictures according to the logic sequence; and when a user enters a menu, the man-machine interface module calls the playing special-effectmodule to play the pictures according to the logic sequence so that the system generates the special effects of reduction, enlargement, distortion, discoloring, shifting and the like, and then the mobile phone generates a colorful and varied operation interface to satisfy the visual needs of the user.
Owner:SHENZHEN GIONEE COMM EQUIP

Shifting register, grid-line driving circuit and display device

ActiveCN106710561AAchieve high-definition displayRealize intelligent display functionStatic indicating devicesDigital storageShift registerControl signal
The invention discloses a shifting register, a grid-line driving circuit and a display device. A first generation module generates a first clock signal under the control of four types of control signals; a pull-down driving circuit controls the potential of a second node under the control of a first clock signal end and a first node; a second generation module generates a second clock signal under the control of four types of control signals; an output module outputs the second clock signal by a signal output end; a pull-down module controls the potentials of the first node and the signal output end; and an input module and a resetting module control the potential of the first node. According to the shifting register, the grid-line driving circuit and the display device disclosed by the invention, by mutual matching of the five modules, when in normal display of a panel, different resolution ratios of a display screen can be switched at any time by generating different-frequency clock signals and switching different clock signals at any time, so that an intelligent display function is realized, random switching between high-definition display and a low-power-consumption mode of the panel is realized, the visual demand is met and the power consumption is effectively reduced.
Owner:BOE TECH GRP CO LTD +1

Method and mobile terminal for adjusting screen brightness

The embodiment of the invention provides a screen brightness adjustment method and a mobile terminal. The method comprises the following steps: when the mobile terminal is in a bright screen state, identifying the face information of the current user of the mobile terminal; based on the face information, a brightness adjustment strategy matched with the face information being obtained. The brightness adjustment strategy includes: a mapping relationship between a light brightness value and a screen brightness value; a light brightness value of the environment in which the mobile terminal is currently located is obtained, and a screen brightness value of the mobile terminal is adjusted based on the brightness adjustment strategy. The invention improves the adjustment efficiency of the screenbrightness and the visual effect of the user by acquiring the brightness adjustment strategy satisfying the visual requirement of the current user according to the face information of the current user.
Owner:VIVO MOBILE COMM CO LTD

Satin alcyonne waterproof fabric with multiangle visual color changing performance and preparation process thereof

The invention provides a satin alcyonne waterproof fabric with multiangle visual color changing performance and a preparation process thereof, belonging to the technical field of textile. The fabric comprises warp yarns and woof yarns of the fabric in different fiber types, and is characterized in that the warp yarns and the woof yarns respectively consist of nitrilon yarns and spandex yarns, or spandex yarns and nitrilon yarns according to tissue structures; through dyeing the nitrilon and spandex yarns by pigment in different colors before spinning the fabric, or through dyeing or stamping the fabric after spinning the fabric, entire or partial of the spandex yarns and the nitrilon yarns can have different colors. The preparation method leads the whole or part of the spandex yarns and the nitrilon yarns to have different colors, and prepare the fabric through pre-setting treatment, waterproof coating finishing and afterfinishing. The fabric presents different colors along with changes of light and visual angles, and has the performances of hydraulic pressure resistance, excellent water resistance, high color fastness, soft hand touch and the like.
Owner:RIXIN TEXTILE
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