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DIGITAL VIDEO CAMCORDER

DIGITAL VIDEO CAMCORDER

By connecting your Digital Video to a computer, the Console opens. Meanwhile your Digital Video switches to Mass Storage, too. You may choose either to transfer the camera data through Console program or through Mass Storage Mode.

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Capturing creativity using digital video

Capturing creativity using digital video

Students used the Digital Blue Movie Creator software to download and edit their footage. It was at this stage that they had the opportunity to add the required text, voiceovers, music, etc. The fact that all fi lms were completed within the time available suggests that the software is straightforward to use (and the students had a basic level of ICT competence to operate it). The use of easy-to-use, yet powerful, software was identifi ed by Hernández-Ramos (2007:37) as a key aspect of students gaining a sense of accomplishment. Although other alternatives, such as Apple’s I-Movie and Microsoft’s Movie Maker exist, the Digital Blue Movie Creator seamlessly interfaces with the cameras and provides a good range of easy-to-administer editing tools. One benefi t of using Digital Blue cameras connected directly to laptops was that footage was captured directly to the computer. The majority of digital video cameras require footage to be transferred to computers in real time, which can be quite time-consuming.
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Digital Video Watermarking: Issues and Challenges

Digital Video Watermarking: Issues and Challenges

Abstract : A pilfered duplicate of a digital video would be easily disseminated to the global audience because of the rapid high-speed internet. Due to impeccably replicable nature of digital video, numerous unlawful duplicates of the original video can be made. A video can undergo several intentional attacks like frame dropping, averaging, cropping and median filtering and unintentional attacks like the addition of noise and compression which can compromise copyright information, thereby denying the authentication. Hence techniques are needed to secure copyrights of the proprietor and counteract illegal copying. One of the techniques is Video Watermarking strategy for concealing some sort of information into digital video sequences that are orders of successive still frames. In this paper, we study properties of video watermarking, the arrangement of computerized video watermarking systems, watermark attacks, its applications, issues and challenges for video watermarking. At last, we propose some future research directions.
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Review on Digital Video Watermarking Techniques

Review on Digital Video Watermarking Techniques

Video piracy has become an increasing problem particularly with the proliferation of media sharing through the advancement of Internet services and various storage technologies. Thus, research in copyright protection mechanisms, where one of which includes digital watermarking has been receiving an increasing interest from scientists especially in designing a seamless algorithm for effective implementation. Digital video watermarking involves embedding secret symbols known as watermarks within video data which can be used later for copyright detection purposes. There are three factors (robustness, security, perceptual fidelity) which are necessary for video watermarking system.
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A Novel Approach of Digital Video Encryption

A Novel Approach of Digital Video Encryption

frame I there are a large number of sorting permutations for I. By a sorting permutation of I we mean a unique sorting permutation  that any two distant parties can compute solely by knowing I, which is the case when the parties utilize the same computational method. For example, the communicating parties can agree on always choosing the lexicographically smallest sorting permutation of frame I. A more efficient method for generating a sorting permutation relies on using a standard sorting algorithm such as quicksort , heapsort . Overall encryption procedure defines in the deformation algorithm. Basically In this system video stream assumes as a collection of still images, get these images refers as an I- frame. First frame do not encrypted, it is transmitted through a secure channel. Select second frame performing the xor() operation with second key image and then xor() with sorted value of first frame. The output of the above process xor() with sorted form of the first key frame. now this is the final encrypted image. then make the digital video through these encrypted images and send this video through simple channel. But key image transmitted through secure channel. At the receiver side reverse process is applied.
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Secured Digital Video Authentication System

Secured Digital Video Authentication System

Digital Video is very important in day to day life. There is a problem of illegal updating or manipulation of digital video. There are many techniques to prevent this issue like copyright, Digital Signature and Watermarking. Watermarking is a process of embedding a watermark into a video using the method of discrete cosine transform (DCT) and discrete wavelet transform (DWT).In this paper DCT method is used. In watermarking secret data can be embedding into a video during embedding process. But still there are issues of tampering the video. Tampering like adding frame, dropping frame, replacing frame etc. There are many algorithms of protection. Protection means changing the original data by converting the original data into some unknown form. Cryptography is one of the best techniques to protect image or video. In cryptography there is a term called encryption and decryption. Encryption means change the originality of image or video and decryption means to revert back the originality. Algorithm of encryption, decryption and DCT watermark is present in this paper.
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Digital Video Watermarking for Educational Video Broadcasting and Monitoring Application

Digital Video Watermarking for Educational Video Broadcasting and Monitoring Application

The Proposed work for digital video watermarking is mainly belonging to distance or vocational education industries for the copyright protection of their recorded and broadcasted lecture series from any illegal commercial use. It provides two level security to recorded & broadcasted educational videos. One level of security is provided by visible serial key and other is provided by embedding invisible watermark logo. Invisible watermark is embedded within the frame at which scene change is detected using Modified LSB method. Invisible watermark is used when visible watermark is removed from frames. Experimental results show that execution time require for embedding the watermark is very less which enables it to implement in real time and robust against various video and image processing attacks, noise attacks.
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DVR 940HD Digital Video Camera

DVR 940HD Digital Video Camera

To take a video, aim your digital video camera as desired and press the Video Shutter button to start the record. A red record indicator will appear on the LCD screen while record is in progress. To stop the record, press the Video Shutter button again. The video will be automatically saved to your digital video camera‟s memory card.

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Digital Video Production + Movie Making

Digital Video Production + Movie Making

Digital video cameras get smaller each year. As a result, they become harder and harder to stabilize by hand because they have very little weight of their own. Trying to shoot footage by handholding causes the “shaky cam” effect where the image jumps around in short jerks or wobbles back and forth in time with the camera operator’s steps. This is a dead giveaway of an amateur production. You should always strive to keep your image straight so that the horizon is level, steady so the image is not jumping around, and smooth so that camera movement is not jerky and distracting.
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A Review on Digital Video Watermarking for Hardware Implementation

A Review on Digital Video Watermarking for Hardware Implementation

In the last few years ago, research effort has been concentrated on efficient Water Marking system implementation using hardware and software platforms. For example, Strycker proposed a well-known video Water Marking technique, called just another watermarking system (JAWS), for TV broadcast monitoring and implemented the system on a Philips’s Trimedia TM-1000 very long instruction word (VLIW) processor. The experimental results showed the feasibility of WM in a TV broadcast monitoring system. Mathai presented an ASIC implementation of the JAWS WM algorithm using 1.8 V, 0.18-μm CMOS technology for real-time video stream embedding. With a core area of 3.53 mm2 and an operating frequency of 75 MHz, that chip implemented WM of raw digital video streams at a peak pixel rate of over 3 Mpixels/s while consuming only 60mW power. A new real-time WM VLSI architecture for spatial and transform domain was presented by Tsai and Wu. Maes presented the millennium WM system for copyright protection of DVD video information and some specific issues, such as watermark detect location and copy generation control, were also explained in their work.
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DIGITAL VIDEO CAMCORDER Instruction Manual

DIGITAL VIDEO CAMCORDER Instruction Manual

Using the Auto Editing Function is simple. Just watch your original tape and press the set button at the beginning and the end of each scene you want to record. This creates an editing program. Start the program, and the camcorder automatically records the scenes you selected onto the tape in your VCR. Before you record, you can preview everything (p. 65), and even delete (p. 69) or re-order scenes (p. 70). • If you connect another Canon digital video camcorder to the camera instead of a

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Survey on Digital Video Watermarking

Survey on Digital Video Watermarking

Watermark was embedded into the coefficients selected based on the weight factors calculated by exploiting the HVS characteristics. The neural network was fused properly with watermarking to enhance the performance of conventional watermarking techniques. El’ Arbi [13] proposed a video watermarking algorithm which combined neural networks with motion estimation in the wavelet domain. A novel digital video watermarking scheme based on 3D-DWT and an artificial neural network was also proposed later [14]. Here, a 3D wavelet transform was performed on each of the selected video shots and then the watermark was embedded in the LL sub-band wavelet coefficients of the low-pass frames. In order to ensure perceptual invisibility, the coefficient was selected adaptively to embed the watermark and the embedding intensity was adaptively controlled using statistical characteristics such as mean and standard deviation.
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Effective Compression of Digital Video

Effective Compression of Digital Video

High bit rates that result from the various types of digital video make their transmission through their intended channels very difficult. Even entertainment video with modest frame rates and dimensions would require bandwidth and storage space far in excess of that available from CD-ROM. Thus delivering consumes quality video on compact disk. Even if high bandwidth technology (example, fiber optic cable) exists, the per byte cost of transmission would have to be very low before it would be feasible to use it for the staggering amount of data require by HDTV. Finally, even if the storage and transportation problems of digital video were overcome, the processing power needed to manage such volumes of data would make the receiver hardware very expensive. Although significant gain in storage, transmission and processor technology have been achieved in recent years, it is primarily the reduction of amount of data that needs to be stored, transmitted and processed that has made wide spread use of digital video a possibility. This reduction of bandwidth is possible by advance in compression technology.
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Digital Video for Dummies pdf

Digital Video for Dummies pdf

B y themselves, digital video cameras aren’t that big a deal. Sure, digital camcorders offer higher quality, but the video quality of analog Hi8 cam- corders really wasn’t too bad. Digital video doesn’t suffer from generational loss (where some video quality is lost each time the video is copied or even played) like analog video does, but again, this isn’t something that should motivate millions of people to instantly trash their old analog camcorders. But video editing . . . now, that’s cool. Until recently, high quality video pro- ductions with special effects, on-screen titles, and fancy transitions between scenes were magical productions made by pros using equipment that cost hundreds of thousands (if not millions) of dollars. But thanks to the dual rev- olutions of digital camcorders and powerful personal computers, all you need for pro-quality video production is a computer, a digital camcorder, a little cable to connect them both, and some software. Within just a few mouse clicks, you’ll be making movie magic!
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DIGITAL VIDEO ADVERTISING TERMINOLOGY

DIGITAL VIDEO ADVERTISING TERMINOLOGY

Mediation Layers, SSPs and DSPs: Platform Revenue Analysis 2007 - 2014 119 Video Ad Trafficking: Scale, Reach, Technology and Integration Specialists 121 Video Ad Serving Platforms: Revenue Analysis 2007 - 2014 124 Video Advertising Networks: Managing the Media Buy and Delivering the Audience 125 Video Advertising Networks: Platform Revenue Analysis 2007 - 2014 128 Auctions, Exchanges and RTBs: Experiencing High Growth 129 Video Auctions, Exchanges and RTBs: Platform Revenue Analysis 2007 - 2014 132

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Digital Video Concepts, Methods, and Metrics

Digital Video Concepts, Methods, and Metrics

Video complexity is an important factor that influences the encoding speed. More complex scenes in a video generally take longer to encode, as more information remains to be coded after quantization. Complex scenes include scenes with fine texture details, arbitrary shapes, high motion, random unpredictable motion, occluded areas, and so on. For example, scenes with trees, moving water bodies, fire, smoke, and the like are generally complex, and are often less efficiently compressed, impacting encoding speed as well. On the other hand, easy scenes consisting of single-tone backgrounds and one or two foreground objects, such as head and shoulder-type scenes, are generally prone to better prediction, where matching prediction units can be found early and the encoding can be accelerated. These easy scenes are often generated from applications such as a videophone, video conferencing, news broadcasts, and so on. Frequent scene changes require many frames to be independently encoded, resulting in less frequent use of prediction of the frame data. If the same video quality is attempted, only lower compression can be achieved. With more data to process, performance will be affected.
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Digital Video Camera Recorder

Digital Video Camera Recorder

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: — Reorient or relocate the receiving antenna. — Increase the separation between the
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MPEG Digital Video Coding Standards

MPEG Digital Video Coding Standards

including the assumption of simple correlated translatory motion between consecutive frames. Thus, it is assumed that the magnitude of a particular image pel can be predicted from nearby pels within the same frame (using Intra-frame coding techniques) or from pels of a nearby frame (using Inter-frame techniques). Intuitively it is clear that in some circumstances, i.e. during scene changes of a video sequence, the temporal correlation between pels in nearby frames is small or even vanishes - the video scene then assembles a collection of uncorrelated still images. In this case Intra-frame coding techniques are appropriate to explore spatial correlation to achieve efficient data compression. The MPEG compression algorithms employ Discrete Cosine Transform (DCT) coding techniques on image blocks of 8x8 pels to efficiently explore spatial correlations between nearby pels within the same image. However, if the correlation between pels in nearby frames is high, i.e. in cases where two consecutive frames have similar or identical content, it is desirable to use Inter-frame DPCM coding techniques employing temporal prediction (motion compensated prediction between frames). In MPEG video coding schemes an adaptive combination of both temporal motion compensated prediction followed by transform coding of the remaining spatial information is used to achieve high data compression (hybrid DPCM/DCT coding of video).
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Digital Video Recorder

Digital Video Recorder

FCC compliance: This equipment has been tested and found to comply with the limits for a digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
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Digital Video Recorder

Digital Video Recorder

FCC compliance: This equipment has been tested and found to comply with the limits for a digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
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