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127results about How to "Achieve visual effects" patented technology

Variable-focus monocular and binocular vision sensing device

The invention provides a variable-focus monocular and binocular vision sensing device comprising a mirror image type optical system, a high-precision bearing holder, an image acquisition system, a digital information processing device and other parts. The variable-focus monocular and binocular vision sensing device can guarantee that a variable-focus image sensor (a CCD (Charge Coupled Device) or an analog video camera) mounted on the high-precision bearing holder can be accurately located at a certain required monocular vision preset station, and can automatically regulate the focus to the required value so as to perform monocular vision measurement or guidance work; the variable-focus monocular and binocular vision sensing device also can accurately locate the image sensor at the unique determined binocular vision preset station, and can automatically regulate focus to the required value, and thus, the image sensor and the mirror image type optical system jointly form a binocular vision sensing system, and sequentially, the function of binocular vision guidance or measurement is realized; and moreover, the variable-focus monocular and binocular vision sensing device can realize automatic switching between a monocular vision station and a binocular vision station through programming of the digital information processing device according to the task requirements, so as to realize the functions such as monocular and binocular vision measurement, guidance or obstacle avoidance.
Owner:BEIHANG UNIV

Floor sweeping robot having visual navigation function and navigation method thereof

The invention provides a floor sweeping robot having the visual navigation function and a navigation method thereof. The floor sweeping robot comprises a sweeping host and a visual navigation controller. The sweeping host comprises a sensing unit, a driving unit, and a driving control unit. The visual navigation controller includes a first visual capture unit, a second visual capture unit, a WIFI communication unit, a storage unit, an indoor simultaneous positioning and mapping unit and a path navigation and control unit. The first visual capture unit and the second visual capture unit are configured to capture the related visual information. The related visual information includes the map information of the local map and the global map of a room wherein the floor sweeping robot is located. The path navigation and control unit is used for sending out a path navigation instruction according to the visual information, the map information and the sensing information. The driving control unit is used for controlling the driving unit according to the path navigation instruction. Advantageously, based on the floor sweeping robot having the visual navigation function and the navigation method thereof, the visual navigation and path planning function can be realized based on the simple modification of an ordinary floor sweeping robot (without a camera).
Owner:LOOQ SYST

Method for extracting visual energy information for image quality evaluation

The invention discloses a method for extracting visual energy information for image quality evaluation. According to the embodiment of the invention, the method comprises the following steps: 1) constructing a set of two-dimensional Gabor filter, and utilizing the two-dimensional Gabor filter to perform convolution treatment on inputted reference image and distorted image, thereby respectively extracting the image feature information of the reference image and the distorted image; 2) post-treating the extracted image feature information of the reference image and the distorted image through split normalization transformation; and 3) on the basis of the image feature information after being subjected to split normalization transformation treatment, respectively extracting the visual energy information of the reference image and the distorted image as the basis for evaluating the visual quality of the image. According to the method provided by the invention, the visual cortex response and the pretreatment system of the human visual system are effectively simulated, the extraction for the visual energy information is realized, and the objective evaluation and the subjective evaluation for the image quality on the basis of the method provided by the invention have excellent consistency.
Owner:ZHEJIANG UNIV

Mobile terminal orientated frictional force tactile sense reappearing system and reappearing method

The invention discloses a mobile terminal orientated frictional force tactile sense reappearing system and reappearing method. The system comprises a mobile terminal, a frictional force tactile sense driving module and a tactile sense panel, wherein the frictional force tactile sense driving module comprises an MCU, a piezoelectric ceramic sheet drive signal generation module and a power supply module. By virtue of the system, when a finger tip of an operator moves on the tactile sense panel, the mobile terminal can detect the position of the finger tip on the tactile sense panel in real time and transmit a gray value of a point corresponding to the position to the MCU through a USB; the MCU controls the signal amplitude generated by a function signal generator according to the gray value, and then through amplification by an audio power amplifier, a sine wave signal with adjustable amplitude can be obtained; and the signal can change the frictional force coefficient on the tactile sense panel, and when the finger of the operator slides, the finger tip can feel the frictional force change on the tactile sense panel. The mobile terminal orientated frictional force tactile sense reappearing system can be applied to a man-machine interaction system used for tactile sense reappearing, and is convenient to operate and strong in experience.
Owner:ZHEJIANG UNIV

Planet shaft intelligent identification flexible assembling system and operation method thereof

PendingCN109108649AAchieve high tempoRealize press fitAssembly machinesControl systemError prevention
The invention discloses a planet shaft intelligent identification flexible assembling system and an operation method thereof. The system comprises a charging station, a C1 planet shaft press-fitting station, a C3 planet shaft press-fitting station and a riveting pressing station; and the charging station, the C1 planet shaft press-fitting station, the C3 planet shaft press-fitting station and theriveting pressing station are connected with a control system through data lines correspondingly. A plurality of feeding robots are adopted for cooperation and connected into a whole system in seriesthrough a transfer robot, thus, multiple actions are conducted simultaneously, and the high machine tool takt is achieved. An air cylinder displacement device is adopted, and the system is compatiblewith many models through one set of equipment. Due to the fact that the system adopts a camera photographing detection technology, the feature points of the end faces of planet shafts are identified,and multi-visual error prevention and angular correction of the press-fitted end faces are achieved. The transfer robot adopts the design of double clamp heads, thus, the clamp heads can conduct the charging and discharging actions at one time, the high flexibility of the whole system is achieved, and full-automatic planetary gear train press-fitting and riveting pressing are completed.
Owner:DALIAN HAOSEN EQUIP MFG

Welding method of solder ball welding device

The invention designs a welding method of a solder ball welding device. According to the solder ball welding method, a solder ball welding device with a coaxial vision system is adopted, a laser focusing head, a controller, a CCD camera and a rotating disc are arranged in the solder ball welding device, part of a laser light path coincides with a vision imaging light path, and coaxial and same-focus laser and vision are achieved. During welding, welding nozzles of different sizes can be switched by rotation, rapid switching between solder ball welding of different sizes and visual imaging is achieved, the sizes of light spots are rapidly adjusted to adapt to the nozzles of different hole diameters, and the requirements of welding spots of multiple specifications are met. Through the processes of preheating before welding, continuous ball spraying and light supplementing after welding, sound welding of welding spots with different sizes and high heat dissipation speed are achieved. During welding, random solder balls can be supplemented in real time, and after entering the transition bin, the solder balls are directly melted in the falling process and then drop on a bonding pad without staying at a nozzle opening, so that the welding time is shortened, and the production efficiency is improved.
Owner:WUHAN BESKYS TECH CO LTD

Plane display device

The invention relates to a plane display device. The plane display device comprises a display screen, a rear shell assembly, a telescopic mechanism and a speaker horn, wherein the rear shell assemblyis fixed with the display screen and is deviated from a display surface of the display screen, the telescopic mechanism is connected with the display screen and is accommodated in the rear shell assembly, the speaker horn is connected with the telescopic mechanism, and the telescopic mechanism can drive the speaker horn to take place a relative displacement with the rear shell assembly to stretchout of the rear shell assembly or retract into the rear shell assembly. The above technical solutions at least have the following technical effects: the speaker horn in the plane display device is mounted on the rear shell assembly, and is connected to the rear shell assembly via the telescopic mechanism; when the speaker horn receives stretch information, the telescopic mechanism can drive the speaker horn to stretch out of the rear shell assembly to implement a relatively good sound making effect; and when the speaker horn receives retraction information, the telescopic mechanism can drive the speaker horn to retract into the rear shell assembly to implement a visual effect of a full screen or a narrow bezel.
Owner:ONEPLUS TECH SHENZHEN
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