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Analysis of FFT Lens Effect

horizontal lens glare similar to Star Trek 11, and almost require a full-screen kernel, which is hard to afford for real-time applications. (J.j. Abrams uses this horizontal lens flare in many films) FFT Method In fact, the effects of all these lenses are blur, that is, convolution of each pixel with a kernel. There is a convolution Theorem in mathematics: That is It indicates convolution, Fourier transformation, and inverse Fourier transformation.

Silverlight for Windows Phone 7 Development Series (1): Environment setup (Reprinted from Jake Lin)

does not have much to do and has certain limitations.Can do The program that runs Silverlight for Windows Phone.Run the xNa for Windows Phone program. Cannot do Without a phone simulator (cellar emulator), you cannot make or receive phone calls, nor send or receive text messages.Without a GPS simulator, you cannot automatically generate GPS simulation data.The simulation data of the accelerometer simulator is not updated and is always kept as a matrix (0, 0,-1), indicating that the simulat

Detailed description of x264 preset class Parameters

Auto TeSA 24 All 60 16 11 2 Slow-firstpass no-fast-pskip B-adapt: an algorithm for determining the position of an Elastic B-frame. This setting controls how x264 decides to place P or B frames. Bframes: Maximum number of B-frames (number of B-frames) between frames I and P. The value range is 0-16. Direct: The prediction mode of "direct" motion vectors. There are two modes available: spatial and temporal. You can specify none to disable direct dynamic vector

Terrain System (translation)

, and then returns to drag other bricks. Some games allow you to modify tiles, change textures, and scene types to create desert, grassland, or forest. When players are not close to the ground, it is a very good way to make the terrain. However, this method cannot bring a wide variety of height changes to the terrain. Advantages of brick-making terrain: ■ Simple and interesting to use ■ Fast production Disadvantages of tile terrain production: ■ Restricted by brick laying and terrain objects in

Long latency, upstream and downstream

increased every second. Run the command (without pseudocode, compile and execute it again). The number takes about 10 seconds to jump. In fact, this method is enough for scenarios with low precision requirements. I used to write a jsgplayer to play tunnel ad files in a custom format. This method is used for inter-frame latency, because it is a simple player that does not require high precision, although the frame rate may be somewhat different, the effect is indeed acceptable. Now, because we n

2019 Korea intelligent robot exhibition

control environment, touch panel, fieldbus, industrial computer, touch screen, embedded Solution scheme, communication board, Ethernet communication equipment, CAD/CAM, CIM;E. Hydraulic and pneumatic components: cylinder, compressor, pump, motor, control valve, actuator, industrial pneumatic valve, vacuum system, and nozzle;2. Robot Vision:A. systems and devices: Machine Vision System, smart cameras, machine vision sensors, lights, lasers, optical lenses

Basic Theory Based on physical Rendering

rendering is that when it occurs on the surface of an object, the scattering effect between light and air and matter. At this time, the plane scattered light is divided into two parts: the part that enters the plane (refraction, absorption or scattering in the internal propagation of the object), the part that goes out of the plane (reflection ). A plane (optical plane) reflection that assumes perfect infinite optical flat. The air and objects on both sides of the plane have their own refractiv

Technical issues in connection of Single-Mode Optical Fiber

position are due to the discomfort of the electrode position, the Mode Field experiment can be performed before the connection starts, and the mode suitable for connecting to the optical fiber and various parameters can be selected. Then, perform various maintenance inspections on the melting machine menu, such as driver Recovery Program maintenance, adjusting the focus of the melting machine; dust inspection and maintenance, so that the melting machine len

Application of sun-Sea Optical Fiber Transmission Technology in HD Monitoring System

system. They can be achieved through coaxial cable, optical cable, wireless or microwave. The video transmission system is the system's image signal path. A sound video transmission design is a very important part of the video monitoring system. If a well-built system selects cameras, lenses, monitors, and video recorders that can produce or process high-quality images, but does not have a good transmission system, eventually, the images seen on the

Parallel Geoscience Seismic processing Workshop (SPW) v2.2.12 Seismic data processing

for creating interactive virtual Panorama Tour maps. The interface is intuitive and can be completed in just a few clicksThere are operations. Accepts multiple formats: You can add and create images of any size (greater than 360x180), supporting almost allImage formats (JPG, PNG, PSD/PSB, KRO, TIFF, and most camera RAW files). Customizable layouts:Panotour interface can be customized.  You can enable or disable certain components, move them, or even turn them into separate windows. PassA few cl

Distortion correction of "OPENCV" fisheye image--Calibration correction

Reference:http://docs.opencv.org/3.0.0/db/d58/group__calib3d__fisheye.html# Gga91b6a47d784dd47ea2c76ef656d7c3dca0899eaa2f96d6eed9927c4b4f4464e05Http://docs.opencv.org/master/modules/calib3d/doc/calib3d.htmlopencv2.4.9 fisheye Camera Model ReferenceKannala J, Brandt s S. A generic camera model and calibration method for conventional, wide-angle, and Fish-eye lenses[j]. Pattern analysis and Machine Intelligence, IEEE transactions on, 2006, 28 (8): 1335-

A preliminary study of TOF

detection, and the TOF camera is through into, reflected light detection to obtain the target distance.tof technology uses active light detection mode, unlike the general lighting requirements, the purpose of the TOF irradiation unit is not illumination, but the use of the incident light signal and reflected light signal changes to carry out distance measurement, so, The TOF irradiation unit is the high-frequency modulation of the light after the transmission, such as shown in the use of LED or

How can internet freedom workers improve their work efficiency?

In the top job book rankings, it is not difficult to see freelance work-related books, and even on the web there are a variety of ways to teach you how to improve work efficiency, however, these books are not to teach you how to use a piece of paper to improve efficiency, do not use the morning an hour to achieve performance, Instead, put aside the list of jobs you're preparing to set aside, and leave out all sorts, focus, time-allocation, and other high-efficiency guidelines to get out of the s

How can internet freedom workers improve their work efficiency?

650) this.width=650; "src=" Http://img.mp.itc.cn/upload/20160711/47054ca2c28041719d17bd0ba43b1a6a_th.jpg "style=" border:0px;margin:0px;padding:0px;font-size:0px; "/>In the top job book rankings, it is not difficult to see freelance work-related books, and even on the web there are a variety of ways to teach you how to improve work efficiency, however, these books are not to teach you how to use a piece of paper to improve efficiency, do not use the morning an hour to achieve performance, Instea

Virtual Reality (VR), augmented Reality (AR), holographic don't be silly to know

virtual 3D image that can be viewed at any angle, and the difference is that the image of the former is visible to any person, the latter only to those with lenses. It is also obvious that the ultimate form of AR is to show that the entity contains a true sense of "complete information": Not only can it be seen, can touch, have a full sensory experience, but also accept and feedback all interactions-or only by intubation.the last point is my understa

UI article--User experience

. This condition is referred to as the simultaneous contrast (simultaneous color contrast) "4". In the UI, usually a control, such as a button, produces a completely different visual effect under different background colors.Another problem with contrast is the chromatic aberration (chromatic aberration) "5". Lenses, including the crystals in our eyes, produce varying degrees of refraction to different light waves. This is due to the fact that differen

A brief history of virtual reality development

that the key to creating demand is to minimize the price of VR equipment and improve accessibility. Google has unveiled a foldable head-mounted display called cardboard, which only needs two lenses in front of the cardboard and is plugged into a mobile phone. The product is currently on the Internet for only $5, and Google says it has sold at least 1 million pieces. In May 2015, when Google released its second edition of Cardboard, Wired magazine pra

Photoshop Getting Started Tutorial (V): Filters

Learning experience: Filters are often used in the photographic industry and are additional lenses for filtering natural light in front of the camera lens for special effects. In the same vein, Photoshop filters are also designed to produce special effects. Photoshop filters are divided into two categories: an internal filter, the one that comes with Photoshop when you install it, and a plug-in filter that you need to install before you can use it. As

Heartbeat Memories 4 Tips

sacrifices must be acted together)4. Automatic-3 year December 24-high goodwill-Christmas-white Christmas events5. Automatic-3 March 16-high degree of goodwill-graduation-After the production list will be accompanied by an additional end chart6. Dating-spring-high Goodwill-Central Park-getting lost (note: Before the question is necessary before the hands)7. Dating-summer-don't ask for goodwill-margin day-about the topic of your loved ones8. Dating-Autumn-high degree of goodwill--Library-Learn t

The sincerity of Nubian Z9 ni

last night, Nubian unveiled its first borderless flagship mobile phone, Nubia Z9, in Beijing's Water Cube. This is the latest Nubian flagship product, but also the "best mobile phone in Shenzhen" made by NI. Nubian Z9appearance, Z9 is equipped with 2.5D Curved narrow frame glass panel, the use of double-sided glass and metal frame design, the body appears very slender, mobile phone front and no physical keys, mobile phone without border, equipped with the shooting shutter button. config, z9 wi

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