Wednesday, June 29, 2011

Uploading Video from a Phone


Uploading Video from a Phone
  1. ·         Create a post in your blog that outlines how you would get any video files on your phone onto our computers here. By using the USB connecting cord, connect it by plugging the cable in the phone and computer, then simply use it.
  2. ·         You will need to outline any cables or devices that you will need
  3. A transfer cord which may vary in shape for each different phone, however , the computer connecting side of the cable will remain the same, as a USB cord on the end.
  4. ·         Add an image of your phone to the blog as well.The Nokia Express Music phone.
  5. ·         Also Explain what file type your phone stores video as.
  6. ]My phone saves as AVI format when placed on to the computer.

Sunday, June 26, 2011

Extension 1- Video editing software

We use Windows Live Moviemaker as our video editing software at school.
There are a number of reasons for this choice:
·         It is simple and easy to use
·         It is free
·         It supports a range of common video formats

There are many other video editing software packages. You are to choose two different programs and compare them with MovieMaker. Post your comparison on your blog.
Two different softwares for video editing other than Movie Maker are-
Apple iMovie -APPLE iMovie
P- Some of the positives of Apple iMovie is that it has many advanced features and add-ons, in comparison to the Window Media Player. This provides a wider variety of options in transitions, volume control, and much more.
N-This software is only free for a person who owns a Mac System.
I-This is one of the best free video editing programs available for Mac users.
Windows Media player is more preferable in my opinion as it provides a decent software , which is both easy to operate , and free to download.
Wax-Wax
P- Wax is a high performance, flexible video editing sofware.
As it has started out as a college project, it is constructed to be easy to operate, incorporating many unique ideas. Wax is known for its easy operation system, catering for both home users and  proffesionals. It can be used as both a stand alon application or as a plug-in to other video editors. The software also features unlimited video and audio tracks with top-down compositing.
N- As Wax is not as a big corporation as Microsoft, it may not give frequent updates and improvements.
Moreover, it is not mentioned as to whether Wax is free. Wax, is not as reliable as Microsoft.

I- None.

Windows Media Player has met a match, with Wax proving to be an equal competitior , offering several advanced options.
I can not find the cost of Apple iMovie.


Saturday, June 25, 2011

Assignment post 7- Synopsis

Unfortunately I can not locate my groups synopsis. 
Therefore to substitute for that, I have made another one, but if the group synopsis is found, I will type up another blog on it.

A Life of A coin
Have ever stopped to think how many places and people "your" coin has belonged to? 
Where it has been? 
Now presented to you is a little twist on the travels of a coin which could be sitting in your back pocket.Come and join us in the journey  which will amaze you.

Synopsis:
A Life of a coin follows the journey of a coin travelling through the hands of several people in Catherine Mcauley, as it falls through pockets, over railings, and out of a locker. But the main theme of the story is that the coin returns to Angela's locker, where it fell from. 



















Thursday, June 16, 2011

Assignment Post-6



Inorder to complete another scene, our group worked on the video at lunch time inorder to  edit what we had. We worked in the Library.
Then at period 5 we filmed one of the last scenes in class, with our teacher Mr Taniane's permissionpermission. This is what we filmed:
In class
Chelsea has created the starring intro and starring credits here.
Here are some other clips:

Thursday, June 16, 2011

Sunday, June 12, 2011

Uploading Video from a Phone


Uploading Video from a Phone
  1. ·         Create a post in your blog that outlines how you would get any video files on your phone onto our computers here. By using the USB connecting cord, connect it by plugging the cable in the phone and computer, then simply use it.
  2. ·         You will need to outline any cables or devices that you will need
  3. A transfer cord which may vary in shape for each different phone, however , the computer connecting side of the cable will remain the same, as a USB cord on the end.
  4. ·         Add an image of your phone to the blog as well.The Nokia Express Music phone.
  5. ·         Also Explain what file type your phone stores video as.                                                                   My phone saves as AVI format when placed on to the computer.

Saturday, June 11, 2011

Assignment post 5






Today we worked on the Ist video assignment. 
Unfortunately , Angela was unable to come to this group meeting.


"Light Graffiti" is a method whereby using a professional camera , timing the photo and simply writing a word or symbol with the light. The camera will capture everything which passes through the screen, naturally capturing the writing.  As you can see, in the word A, the door was open at one point through the photo, and as it was in the timing, there is light issuing from the door which has been taken.This was taken with manual-focus, as auto-focus. We used low ISO or film speed when taking the photo.

Where are these pictures going to be used? 
These pictures are to be used as the title of the film, to create a new , unique touch

Wednesday, June 8, 2011

Data Compression


Visit the following site then answer the questions below (in your blog)
1.What is data compression?
Data compression, source coding or bit-rate reduction is the process of encoding information using fewer bits than the original representation would use.

Compression is useful because
it helps reduce the consumption of expensive resources, such as hard disk space or transmission bandwidth
. On the downside, compressed data must be decompressed to be used, and this extra processing may be detrimental to some applications. 


2.What is a data compression ratio?
Lossy image compression is used in digital cameras, to increase storage capacities with minimal degradation of picture quality. Similarly, DVDs use the lossy MPEG-2 Video codec for video compression.
I am not able to find the data compression ratio.
The compression ratio (that is, the size of the compressed file compared to that of the uncompressed file) of lossy video codecs is nearly always far superior to that of the audio and still-image equivalents.
  • Video can be compressed immensely (e.g. 100:1) with little visible quality loss;
  • Audio can often be compressed at 10:1 with imperceptible loss of quality;
  • Still images are often lossily compressed at 10:1, as with audio, but the quality loss is more noticeable, especially on closer inspection.
The compression rate is 5 to 6 % in case of lossy compression while in case of lossless compression it is about 50 to 60 % of the actual file
3.Why is data compression an important technique for the online world
Lossy compression formats suffer from generation loss: repeatedly compressing and decompressing the file will cause it to progressively lose quality. This is in contrast with lossless data compression, where data will not be lost via the use of such a procedure. Therefore, data compression is an important technique for the online world, as to not loose information.

4.What is the difference between Lossy and Lossless data compression?
In information technology, "lossy" compression is a data encoding method which compresses data by discarding (losing) some of it. The procedure aims to minimise the amount of data that need to be held, handled, and/or transmitted by a computer.
Whereas , 
Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. The term lossless is in contrast to lossy data compression, which only allows an approximation of the original data to be reconstructed, in exchange for better compression rates.
Therefore, Lossless data compression, retains all memory and data, but Lossy compression discards of losses some of it.

5.Which method offers the greatest compression ratio?
I would assume 'Lossy' compression, as discarding information, then compressing it the most.


6.Why is human psychology and perception an important factor in methods of Lossy compression?
To connect the discarded portions of information with the rest of the piece.
7.Name Lossy file formats for audio, still image and video format.
Lossy compression is most commonly used to compress multimedia data (audio, video, still images), especially in applications such as streaming media and internet telephony. By contrast, lossless compression is required for text and data files, such as bank records, text articles, etc. I am not certain of the exact format, as I could not locate it on the website.

Assingment Post 4

Gnatt Chart







This is our Gatt chart, it shows when we plan to do each step of the process of making our video. Planning should take one week to complete (this includes storyboard), filming we assume will take three weeks to complete, while editing the video clips will take two weeks to do. This is according to how many IST lessons we have that week to complete the step.

Today , we plan to film, as we planned the shots, and scenes. We are quite confident, in producing the 'Life of a Coin' Journey from one person to another.

Tuesday, June 7, 2011

An Introduction to Video

    1. What are some advantages of digital videos                                                        Switched digital video systems' most obvious advantage is that they address one of the biggest problems cable companies have -- running out of bandwidth. As more people sign up for HDTV services, high speed cable modems and VOD, cable companies have to find a way to deliver. An SDV system helps cable companies implement a solution without replacing miles of cable, since the system can work on top of an existing infrastructure.Increased bandwidth can also lead to more services. A cable company could choose to increase the number of channels it offers, allowing it to compete more effectively with satellite television companies. Additional channels could include more HD feeds or programming catered to a particular region.Cable companies provide Internet access in much the same way they provide television feeds. Companies feed Internet downstream through 6-megahertz (MHz) channels in the cable bandwidth. Upstream feeds, the information sent back through your modem to the Internet, goes into a 2 MHz channel. When customer demand gets heavy, the cable company creates a new 6 MHz channel to relieve stress on the system. With SDV, cable companies have more bandwidth available to convert into Internet channels during periods of high customer demand.

    1. What is meant by frame rate in video

frame rate you get on your computer. For example, your PC processor or graphics hardware may only be capable of playing 10-15 frames per second without acceleration.

 In motion pictures, television, and in computer video displays, the frame rate is the number of frames or images that are projected or displayed per second. Frame rates are used in synchronizing audio and pictures, whether film, television, or video. In motion pictures and television, the frame rates are standardized by the Society of Motion Picture and Television Editors (SMPTE). SMPTE Time Code frame rates of 24, 25 and 30 frames per second are common, each having uses in different portions of t

he industry. The professional frame rate for motion pictures is 24 frames

    1. Are all videos/movies the same frame rate, explain your answer                          No , not all videos and movies are not in the same frame rate as various cameras, and Television  have different camera rates.

    1. What is meant by resolution, how is it measured?                                                  
      • Image resolution describes the detail an image holds. The term applies to raster digital images, film images, and other types of images. Higher resolution means more image detail.
        The resolution of a monitor is measured in picture elements, or "pixels" for short. Pixels are tiny dots that display on a computer monitor in one of millions of colors, shades and hues. To the viewer, the many pixels in a computer monitor combine to form a viewable picture.
        A pixel is the smallest element of a video image, but not the smallest element of a monitor's screen. Since each pixel must be made up of three separate colors, there are smaller red, green, and blue dots on the screen that make up the image. The term dot is used to refer to these small elements that make up the displayed image on the screen. In order to use different resolutions on a monitor, the monitor must be able to support automatic changing of resolution modes. Originally, monitors were fixed at a particular resolution, but most monitors today are capable of changing their displayed resolution under software control. This allows for higher or lower resolution depending on the needs of the application. A higher resolution display shows more on the screen at one time, and the maximum resolution that a monitor can display is limited by the size of the monitor and the characteristics of the CRT (cathode-ray tube). In addition, the monitor must have sufficient input bandwidth to allow for refresh of the screen, which becomes more difficult at higher resolutions because there is so much more information being sent to the monitor.

         14"15"17"19"21"
        640x480BESTGOODTOO BIGHUGETERRIBLE
        800x600GOODBESTGOODTOO BIGHUGE
        1024x768TOO SMALLGOODBESTGOODSTILL GOOD
        1280x1024TINYTOO SMALLGOODBESTGOOD
        1600x1200TERRIBLETINYTOO SMALLGOODBEST
    1. What is the colour system called RGB

The RGB color model is an additive color model in which red, green, and blue light is added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue.
The main purpose of the RGB color model is for the sensing, representation, and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography. Before the electronic age, the RGB color model already had a solid theory behind it, based in human perception of colors.
    1. Explain the video standards PAL, NTSC, and SECAM, what are the main differences between them.

 The system used in America & Canada is called "NTSC".  Western Europe and Australia use a system called "PAL", and Eastern Europe and France use "SECAM". Without standards conversion, it is impossible to view a video program that is recorded in a foreign country without first converting it..
Here are some charts illustrating the differences
N T S CNational Television System Committee
Lines/Field525/60
Horizontal Frequency15.734 kHz
Vertical Frequency60 Hz
Color Subcarrier Frequency3.579545 MHz
Video Bandwidth4.2 MHz
Sound Carrier4.5 MHz
 NTSC, named for the National Television System Committee, is the analog television system.

P A LPhase Alternating Line
SYSTEM
PAL
PAL N
PAL M
Line/Field625/50625/50525/60
Horizontal Freq.15.625 kHz15.625 kHz15.750 kHz
Vertical Freq.50 Hz50 Hz60 Hz
Color Sub Carrier4.433618 MHz3.582056 MHz3.575611 MHz
Video Bandwidth5.0 MHz4.2 MHz4.2 MHz
Sound Carrier5.5 MHz4.5 MHz4.5 MHz
 PAL, short for Phase Alternating Line, is an analog television color encoding system used in broadcast television systems in many countries.
SECAMSequential Couleur Avec Memoire
or Sequential Color with Memory
SYSTEM
SECAM B,G,H
SECAM D,K,K1,L
Line/Field625/50625/50
Horizontal Frequency15.625 kHz15.625 kHz
Vertical Frequency50 Hz50 Hz
Video Bandwidth5.0 MHz6.0 MHz
Sound Carrier5.5 MHz6.5 MHz
SECAM, is an analog color television system.
    1. Which standard do we use in Australia?
We use 'PAL'  otherwise known as 'Phase Alternating Line'
    1. What is an IEEE 1394 port

The IEEE 1394 interface is a serial bus interface standard for high-speed communications  as well as in digital audio, digital video, automotive, and aeronautics applications. The interface is also known by the brand names ofFireWire (Apple), i.LINK (Sony), and Lynx (Texas Instruments). IEEE 1394 replaced parallel SCSI in many applications, because of lower implementationcosts and a simplified, more adaptable cabling system. 

    1. Why do digital video cameras use video compression
Digital cameras use video compression as to allow a higher resolution on the computer.Many types of video compression exist for serving digital video over the internet and on optical disks. The file sizes of digital video used for professional editing are generally not practical for these purposes, and the video requires further compression with codecs such as the Windows Media format, MPEG2, MPEG4, Real Media, and more recently H.264. Probably the most widely used formats for delivering video over the internet are MPEG4 and Windows Media, while MPEG2 is used almost exclusively for DVDs, providing an exceptional image in minimal size but resulting in a high level of CPU consumption to decompress.
    1. Describe what a codec is.                                                                                      codec is a device or computer program capable of encoding and/or decoding a digital data stream or signal. The word codec is a a format is a document (the standard), a way of storing data, while a codec is a program  which can read or write such files. In practice "codec" is sometimes used loosely to refer to formats, however.
    1. What is meant by “generation loss”, where does it happen?                               Generation loss refers to the loss of quality and potential increase of file size between subsequent copies of data. Anything that reduces the quality of the representation when copying, and would cause further reduction in quality on making a copy of the copy, can be considered a form of generation loss
      Generation loss occurs with increased distortion, increased noise, change in frequency response, and change in the relative phase of one frequency component with respect to another.



Monday, June 6, 2011

Assignment Post 3-Our Storyboard

Click Here.
Our story board comprises of the plot summary, and the main point of the 'Life of a coin'
A Life of a Coin is the story of how a coin travels from one person to another in the world. We have taken the example of the Catherine  Mcauley to film this video.