Motion graphics and_compositing_video_analysis_worksheet 1 interactive menu
- 1. Salford City College Eccles Centre Creative Media Production 1 Use of text: (Title, Credits, animated captions, stings, indents, interactive menus, web banner) Iron Man DVD Menu (interactive menu) Brief description: What do you see? In this iron pulls over the interactive menu where you choose what you want to do to show Iron Mans advanced technology. In the background is little screens showing clips off the film and spinning around Iron Man showing his build and he is messing with his gadgets and showing how much he thinks of himself. Techniques used: Animation, Visual Effects, Colour Rendering, Graphics, Movement All of the menu is animated as it would be very difficult to produce this type off menu and Iron Man stands out looking very strong and powerful while the background is blue to show how great Iron Man is and how he stands out from everything else.
- 2. Salford City College Eccles Centre Creative Media Production 2 Advanced techniques: Blur, Sharpen, Distortion, Rotation, Opacity The camera spins round Iron Man to show his figure and his technology how great he is and all different videos come spinning around aswell. They rotate quite slowly so you have a chance to see everything that’s going on. The background is also a blurred a bit too make Iron Man stand out and also done this by lowering the Opacity. Technical comments: Video Format, Screen Ratio, Resolution, Frame rate, Compression The video quality is 460p because it is compressed to that on YouTube and 4:3 screen ratio. As its a film and would be made for the United States it would be shot in NTSC (standard US TV) is 30 fps, film is 24 fps. This means as NTSC updates more regularly there is less strobing (jerkiness). Compression You Tube: Sorenson Spark codec (a variant of H.263) DVD Codec: MPEG-4/AVC Codec (paramount) Pros H.264 delivers incredible video quality at data rates one-fourth to one-half the size of previous video formats H.264 offers dramatically lower bit rates and better picture quality than MPEG-2, MPEG-4 or H.263+ It is 2X times more efficient than MPEG-4. and file size is 3X times smaller than comparable MPEG-2 Codecs
- 3. Salford City College Eccles Centre Creative Media Production 3 Motion Graphics and Video Compositing Unit 64 Glossary Motion graphics - Graphics that use video footage and/or animation technology to create the illusion of motion or rotation, graphics are usually combined with audio for use in multimedia projects. Compositing video - When there are several different clips of video are layered over one another to create a single image. Interactive Menus – DVD Interface or Interactive Menus on a web page Ident – The ‘call sign’ of a channel or production company to identify themselves on screen, usually shown before a programme. Animated Captions – Animated Graphics layered over an image / video Web Banners – A form of web advertising that is embedded into a web page. They are used to attract a viewer to their website. A Web Banner usually a mix of motion graphics and video Video Format - 3 Main Formats HD, PAL, NTSC. HD is the highest resolution (720 or 1080 vertical lines in the image). PAL is the UK Standard definition image (576 vertical lines). NTSC is the US Standard definition image (480 vertical lines). Now in the digital age we now look at video format in terms of pixels (i.e. High definition 1080; 1920 x 1080 or 2,073,600 pixels) Screen ratio – Standard TV ratio is 4:3; this means that for every 4 units wide it is 3 units high. It is likely that the screen ratio will be Widescreen (16:9) in a cinematic sequence. It is easy to integrate and covers wide range of picture format. Hence used in large application segment. Cons H.264 requires longer encoding time It is certainly not constricted and low-bandwidth friendly More Hardware overhead is also one of the limiting factor Licensing agreements are complicated.
- 4. Salford City College Eccles Centre Creative Media Production 4 Resolution – The amount of detail in an image or signal, such as Standard TV Definition and High Definition. See Video Format. Frame Rate - The number of video or film frames displayed each second (frames per second; fps). PAL frame (standard UK TV) is 25 fps, NTSC (standard US TV) is 30 fps, film is 24 fps. This means as NTSC updates more regularly there is less strobing (jerkiness). Compression – The use of Codecs (WMV, DivX) to reduce the file size of a video by a variety of methods. This sometimes means a loss in image quality (a “lossy”). Codecs are found in Video Cameras, DVD players / recorders, Editing Packages, Video upload sites)