Common Intermediate Format

CIF (Common Intermediate Format), also known as FCIF (Full Common Intermediate Format), is a format used to standardize the horizontal and vertical in pixels of YCbCr sequences in video signals, commonly used in video teleconferencing systems. It was first proposed in the H.261 standard.

CIF was designed to be easy to convert to PAL or NTSC standards. CIF defines a video sequence with a resolution of 352 × 288 like PAL Source Input Format, a framerate of 30000/1001 (roughly 29.97) frames like NTSC, with colour encoded using YCbCr .

QCIF means "Quarter CIF". To have one fourth of the area as "quarter" implies the height and width of the frame are halved.

Terms also used are SQCIF (Sub Quarter CIF, sometimes subQCIF), 4CIF (4× CIF) and 16CIF (16× CIF). The resolutions for all of these formats are summarized in the table below.

{| class="wikitable" Legal !Format !Video Resolution |- | SQCIF || 128 × 96 |- | QCIF || 176 × 144 |- | SIF(525)|| 352 x 240 |- | CIF/SIF(625)|| 352 × 288 |- | 4SIF(525) || 704 x 480 |- | 4CIF/4SIF(625)|| 704 × 576 |- | 16CIF ||1408 × 1152 |- | DCIF ||528 × 384 |}

xCIF pixels are not square, instead having a native aspect ratio of ~1.222:1. On older television systems, a pixel aspect ratio of 1.2:1 was the standard for 525-line systems (see CCIR 601). On square-pixel displays (computer screens, many modern televisions) xCIF rasters should be rescaled horizontally by ~109% to 4:3 in order to avoid a "stretched" look: CIF content expanded horizontally by ~109% results in a 4:3 raster of 384 × 288 square pixels.

The CIF "image sizes" were specifically chosen to be multiples of macroblocks (i.e. 16 × 16 pixels) due to the way that discrete cosine transform based video compression/decompression is handled. So, by example, a CIF-size image (352 × 288) corresponds to 22 × 18 macroblocks.

SIF (Source Input Format) is practically identical to CIF, but taken from MPEG-1 rather than ITU standards. SIF on 525-Line ("NTSC") based systems is 352 × 240, and on 625-line ("PAL") based systems, it is identical to CIF (352 × 288). SIF and 4SIF are commonly used in certain video conferencing systems.

DCIF means Double CIF, proposed as a compromise resolution between CIF and 4CIF that is more balanced (in terms of horizontal vs vertical resolution) and suited to common CCTV equipment (with 480+ scanlines but a maximum of about 560 TVL) than 2CIF (704x288). The pixel and therefore data rate is exactly double that of CIF, but the 1:1.375 image aspect ratio is a lot closer to standard 4:3, with essentially square pixels.

References

ITU-T H.261 standard

www.steviesnacks.com - This lesson is the "Intermediate" level of a 3-level lesson that also comes in Beginner and Advanced difficulty levels. This is a very typical, SRV influenced shuffle blues solo, in the style of Pride And Joy. For the full lesson, you will receive a HD video download of the full 20 minute lesson as well as tablature for the entire solo in GuitarPro and PDF format. The free lesson covers what notes to play, the extended version has more detailed instruction on each part and how to play it correctly. The things you will learn in this lesson include soloing in the open position, playing across Box 1, Box 2, and into Box 3, playing a lick at Box 1 in the upper octave position, and a very common chord used in many blues sons. The intermediate lesson and advanced lesson will follow this same solo, increasing in difficulty. Using this series of lessons you can ease your way into the Pride And Joy style of soloing in 3 levels of difficulty.

Drill Team Training; Common Mistakes- Gloves in Armed Drill

Duration: 3:01
Published: 2010-11-04
Uploaded: 2010-11-26
Author: CompetitiveOutcomes

Competitive Outcomes is famous for our ability to deliver hard hitting, effective training experiences for military style drill units, teams, honor guards, and cadet programs worldwide. We provide beginning, intermediate, and advanced training for a wide range of military drill topics and cadetting program activities. We train both individuals and units by applying our knowledge and experience to support their goals and exceed them! Training is offered through both DVD video format and through our Drill Camps - delivering instructors to your location to teach. Perfect Practice Makes Perfection We can produce a custom tailored curriculum to your distinct requirements and goals. We have the ability to produce existing lessons to DVD. We can also create new and custom lessons in the same low cost DVD based format. The highly skilled training staff at Competitive Outcomes believes in using what works to enhance the learning experience and to increase your competitiveness and outcomes at any level of competition. Website: www.competitive-outcomes.com Email: Info@competitive-outcomes.com Facebook: www.facebook.com/competitiveoutcomes

Drill Team Training; Common Mistakes- Armed Cadence/Chants

Duration: 1:40
Published: 2010-11-04
Uploaded: 2010-11-04
Author: CompetitiveOutcomes

Shuffle Blues Solo 1 - Beginner

Duration: 9:05
Published: 2008-04-21
Uploaded: 2010-12-26
Author: gr8bluesgtr

www.steviesnacks.com - This lesson is the "Beginner" version of a 3-level lesson that also comes in Intermediate, and Advanced difficulty levels. This is a very typical, SRV influenced shuffle blues solo, in the style of Pride And Joy. For the full lesson, you will receive a HD video download of the full 20 minute lesson as well as tablature for the entire solo in GuitarPro and PDF format. The free lesson covers what notes to play, the extended version has more detailed instruction on each part and how to play it correctly. The things you will learn in this lesson include soloing in the open position, playing across Box 1, Box 2, and into Box 3, playing a lick at Box 1 in the upper octave position, and a very common chord used in many blues sons. The intermediate lesson and advanced lesson will follow this same solo, increasing in difficulty. Using this series of lessons you can ease your way into the Pride And Joy style of soloing in 3 levels of difficulty.

Drill Team Training; Common Mistakes- Armed REGEX

Duration: 1:59
Published: 2010-11-04
Uploaded: 2010-11-04
Author: CompetitiveOutcomes

SM41's Mario Music Madness #2: Rules & Important Info

Duration: 10:33
Published: 2008-12-30
Uploaded: 2010-08-27
Author: ShadowMarioXLI

To kick off the Mario Music Madness festivities, I created a video just detailing some of the basic rules you need to adhere to in the contest. Most of them are common sense, but be sure to listen to the video. I also explained how the scoring system will operate and what the question format will be like. Finally, I provided 5 examples, one from each difficulty level, of clips that would be ranked at the corresponding levels. Just in case you need to see it in text form, here is the scoring system: 4 Very Easy questions worth 1 point each 5 Easy questions worth 3 points each 7 Intermediate questions worth 5 points each 4 Hard questions worth 7 points each 2 Very Hard questions worth 9 points each Remember that you can submit your answers via NSider2 PM, YouTube PM or e-mail (I will give you my e-mail if you request it). You only get one answer submission, so make sure everything is correct and all questions are answered before you submit. Also, don't be afraid to take a guess on a question that you don't know; an incorrect answer and an omission both will not receive credit, but if you guess you might have a chance to get it correct. If you have any other questions, contact me or comment on this video. A sample question for Mario Music Madness #2 will be posted either tomorrow or Thursday. Good luck in ShadowMario41's Mario Music Madness #2! SM41's Holiday Announcement Time: www.youtube.com By the way, if you couldn't figure out the music selections I used in this video ...

The Primordial Teachings Audio Series Lesson One Clip

Duration: 9:59
Published: 2008-09-17
Uploaded: 2010-12-01
Author: mitchellgibsonmd8000

Many ancient cultures teach that sacred knowledge continuously emerges from the primordial world in the form of primordial teachings. These sacred teachings are endowed with the primordial energy of the universe itself. They come into being spontaneously and are not made. These teachings exist forever and are not destroyed. As time passes from one world to the next, these sacred texts reveal themselves. In their original form, the teachings are called The Celestial Writings. The original force and shape of the characters are one zhang (= 10 Chinese feet, SPB) square, and give forth beams in every direction shining and brilliant, so that the mind is rendered respectful and the eyes are dazzled. The Celestial Writings in their original form as celestial scripts can neither be accessible nor read --- not by ordinary mortal beings or even by lower ranking gods and immortals. The Celestial Writings are handed down from the highest Gods, to the intermediate gods, to lower gods, then to immortal enlightened humans. After reaching the Immortals, they are handed on to the common men of this world. In other words: only the highest gods are able to see the original celestial writings written in cosmic script. Only in times of preceding an immense catastrophe, such as the one approaching this world, and when the whole cosmos is to be destroyed before creation starts again, may these texts can be transmitted, through a series of intermediary stages, finally down to some elected ...

IELTS Speaking - TIPS

Duration: 7:19
Published: 2008-06-15
Uploaded: 2010-12-26
Author: voxguru

This vidcast discusses common mistakes students make in English speaking tests, like the IELTS interview, and gives suggestions to help students prepare for the test.

Test 2 - HV20 24p - Letus35 Mini - footage - Film School

Duration: 1:56
Published: 2008-03-24
Uploaded: 2010-09-21
Author: CINEMACUTEO

This are Canon HV20 footage at 24p and whit the Lentus35 Mini and a Tamron 28-80 MM f/3.5 in a Cavison Rood Support. This video is brought to you by: www.cinemacuteo.com, se the HD version in http "A Depth-of-field adapter or DOF adapter is used in conjunction with digital video camcorders to achieve optical film-like shallow depth of field with manual- or auto-focus lenses on a camera whose sensor size is not adequate enough to achieve it natively. A DOF adapter could theoretically be used on a multitude of platforms, although it is most useful on prosumer cameras where high resolution is a capability but the sensor size is still small enough to elicit use of the adapter. The name 35mm adapter is perhaps more common, since the current designs use a focusing screen the size of 35mm film, but will not be used here since it is theoretically possible to create an adapter of a different size, such as medium format. Possibly one of the most impressive characteristics of a DOF adapter is its apparent simplicity. Since most digital camcorders available today have CCD receptors that are too small to facilitate professional depth of field (an XL2 has three chips just 1/3" in size each), a DOF adapter looks to take the place of the camera's CCD and use a larger focusing plate (in many cases, 35mm) to capture an image. Since this image is focused onto a translucent screen (similar to how one would look at a focused image through a system camera's viewfinder), the camcorder is able ...

The Primordial Teachings Audio Series Lesson Two Clip

Duration: 9:59
Published: 2008-09-17
Uploaded: 2010-08-27
Author: mitchellgibsonmd8000

The Primordial Teachings Many ancient cultures teach that sacred knowledge continuously emerges from the primordial world in the form of primordial teachings. These sacred teachings are endowed with the primordial energy of the universe itself. They come into being spontaneously and are not made. These teachings exist forever and are not destroyed. As time passes from one world to the next, these sacred texts reveal themselves. In their original form, the teachings are called The Celestial Writings. The original force and shape of the characters are one zhang (= 10 Chinese feet, SPB) square, and give forth beams in every direction shining and brilliant, so that the mind is rendered respectful and the eyes are dazzled. The Celestial Writings in their original form as celestial scripts can neither be accessible nor read --- not by ordinary mortal beings or even by lower ranking gods and immortals. The Celestial Writings are handed down from the highest Gods, to the intermediate gods, to lower gods, then to immortal enlightened humans. After reaching the Immortals, they are handed on to the common men of this world. In other words: only the highest gods are able to see the original celestial writings written in cosmic script. Only in times of preceding an immense catastrophe, such as the one approaching this world, and when the whole cosmos is to be destroyed before creation starts again, may these texts can be transmitted, through a series of intermediary stages, finally ...

Using OpenEXR Renders in Autodesk Composite - Part 1

Duration: 4:32
Published: 2010-08-13
Uploaded: 2010-12-25
Author: 3dsMaxHowTos

Level: Intermediate Recorded In: 3ds Max 2011, Autodesk Composite 2011 Files used: softimage.wiki.softimage.com Description: This movie shows how to render scenes in 3ds Max using the OpenEXR file format. In addition to being a High-Dynamic-Range (HDR) format, OpenEXR lets you render element passes that are stored within the file. You can then import the OpenEXR file in Autodesk Composite and access the specific channels. This first movie shows how to render multi-layered OpenEXR images in 3ds Max.

Navigator Tutorial demonstrating Appearance Filters and Betweeness Centrality

Duration: 7:31
Published: 2010-10-04
Uploaded: 2010-10-04
Author: ali75757

Tutorial Level: Intermediate Navigator version: 2.2 Starts by demonstrating some basic layout functionality in Navigator. Then shows how to visualize node annotations with Appearance Filters. In the end, shows how to calculate Betweenness Centrality for the network and use that to get a better idea of the hub nodes in the network. Steps: 1) Load an offline database. For example I2D Human downloaded from ophid.utoronto.ca in Tab-Separated format 2) Search for your favourite list of genes in the database you loaded and display their neighbours as well 3) Perform GRIP Layout to organize the nodes in a better layout 4) Fade away the edges to get a less cluttered view of the network 5) Create a Filter on node degrees so the most highly connected nodes become more visible: * Colour: Full Spectrum * Transparency: from 50% transparent to completely opaque (100%) * Size: from 6 to 40 6) The 'Primary Targets' subset has the Filter applied to it too. We don't want this, so we edit the filter settings to only apply to the Current Selection. 7) Fix the 3 most highly connected nodes in position and unpause the dynamic layout algorithm 8) Select and layout common neighbours between the green and blue nodes on a straight line 9) Manually select the set of highly connected green/yellow nodes by using the spreadsheet highlight as an aid. Lay them out on one side 10) Manually select the set of highly connected yellow/orange nodes by using the spreadsheet highlight as an aid. Lay them out on ...

Google I/O 2010 - Data migration in App Engine

Duration: 44:26
Published: 2010-05-27
Uploaded: 2010-11-25
Author: GoogleDevelopers

Google I/O 2010 - Data migration in App Engine App Engine 201 Matthew Blain Learn about the App Engine bulk loader and see an example of migrating data from an external data source into the app engine datastore--and back out. Do you have data stored in a traditional, relational DB which you'd like to upload to App Engine? This session will teach you how. For all I/O 2010 sessions, please go to code.google.com

msft 70 526 05 clip2

Duration: 15:01
Published: 2010-12-25
Uploaded: 2010-12-26
Author: MrSamirhanna

Generating Low-Overhead Dynamic Binary Translators

Duration: 38:31
Published: 2010-06-10
Uploaded: 2010-10-15
Author: GoogleTechTalks

Google Tech Talk June 9, 2010 ABSTRACT Presented by Mathias Payer. Dynamic (on the fly) binary translation is an important part of many software systems. In this talk we discuss how to combine efficient translation with the generation of efficient code, while providing a high-level table-driven user interface that simplifies the generation of the binary translator (BT). The translation actions of the BT are specified in high-level abstractions that are compiled into translation tables; these tables control the runtime program translation. This table generator allows a compact description of changes in the translated code. We use fastBT, a table-based dynamic binary translator that uses a code cache and various optimizations for indirect control transfers to illustrate the design tradeoffs in binary translators. We present an analysis of the most challenging sources of overhead and describe optimizations to further reduce these penalties. Keys to the good performance are a configurable inlining mechanism and adaptive self-modifying optimizations for indirect control transfers. Link to the paper: nebelwelt.net Using a BT to secure running programs: Hacking the Hackers with User-Space Virtualization nebelwelt.net Project page of the BT: nebelwelt.net

Lec 31 | MIT 5.60 Thermodynamics & Kinetics, Spring 2008

Duration: 45:19
Published: 2008-12-15
Uploaded: 2010-09-07
Author: MIT

Lecture 31: Complex reactions and mechanisms. View the complete course at: ocw.mit.edu License: Creative Commons BY-NC-SA More information at ocw.mit.edu More courses at ocw.mit.edu

Discussion and Final Comments from Day 1

Duration: 51:13
Published: 2010-11-17
Uploaded: 2010-12-08
Author: GlobalHealthgov

Sustainable Influenza Vaccine Production Capacity Stakeholder's Workshop: Discussion and Final Comments from Day 1. www.globalhealth.gov

Google I/O 2009 - Advanced Techniques, AJAX API Playground

Duration: 63:23
Published: 2009-06-03
Uploaded: 2010-12-24
Author: GoogleDevelopers

Google I/O 2009 - Fun Hacks and Cool JavaScript: The Advanced Techniques Behind the Google AJAX API Playground Ben Lisbakken In this session, learn advanced Javascript, why App Engine is so easy to develop on, protecting from XSRF vulnerabilities, cutting the load time of your app in half, and hear about general client-side web app techniques. These lessons are taught in the context of the design and development of the AJAX API Playground (code.google.com a tool which can help developers learn about and experiment with many of Google's APIs. For presentation slides and all I/O sessions, please go to: code.google.com/events/io/sessions.html

Role of New and Existing Technologies and Adjuvants and Technology Transfer Models

Duration: 79:26
Published: 2010-11-17
Uploaded: 2010-12-08
Author: GlobalHealthgov

Presentations and discussion session. Presentations: 1) Roles of Existing Technologies and Adjuvants by Dr. Robin Robinson 2) Cell-Based and Recombinant Influenza Vaccine Manufacturing Technologies for Pandemic Influenza Preparedness by Dr. Armen Donabedian 3) Gates Foundation Influenza Vaccine Program by Dr. Douglas Holtzman 4) Examples of Vaccine Know-How Transfer by Dr. Jan Hendriks www.globalhealth.gov

Lec 12 | MIT 6.033 Computer System Engineering, Spring 2005

Duration: 50:23
Published: 2008-04-24
Uploaded: 2010-09-09
Author: MIT

End-to-end Layer View the complete course at: ocw.mit.edu License: Creative Commons BY-NC-SA More information at ocw.mit.edu More courses at ocw.mit.edu

Lec 32 | MIT 5.111 Principles of Chemical Science, Fall 2005

Duration: 47:38
Published: 2008-01-18
Uploaded: 2010-12-21
Author: MIT

Kinetics (cont.) (Prof. Catherine Drennan) View the complete course: ocw.mit.edu License: Creative Commons BY-NC-SA More information at ocw.mit.edu More courses at ocw.mit.edu

Lec 11 | MIT 6.033 Computer System Engineering, Spring 2005

Duration: 50:55
Published: 2008-04-24
Uploaded: 2010-09-27
Author: MIT

Network Layer, Routing View the complete course at: ocw.mit.edu License: Creative Commons BY-NC-SA More information at ocw.mit.edu More courses at ocw.mit.edu

The Emerging World of ECoG Neuroprosthetics

Duration: 54:24
Published: 2010-10-11
Uploaded: 2010-12-05
Author: GoogleTechTalks

Google Tech Talk September 27, 2010 Presented by Dr. Eric C. Leuthardt, Washington University. The notion that a computer can decode brain signals to infer the intentions of a human and then enact those intentions directly through a machine is becoming a realistic technical possibility. These types of devices are known as brain-computer interfaces (BCIs). In the near term, the evolution of these neuroprosthetic technologies could have significant implications for patients with motor disabilities by enhancing their ability to interact and communicate with their environment. Further into the future, these approaches could substantially alter how humans and machines interact. This talk will review the cortical signals, technical approaches, and current barriers to bringing BCIs to real world application and projecting their future implications on a broader social scale. Eric C. Leuthardt, MD is a neurosurgeon who is currently an assistant professor with the Department of Neurological Surgery and the Department of Biomedical Engineering at Washington University in St. Louis. He is Director of the Center for Innovation in Neuroscience and Technology. His research has focused on neuroprosthetics.-- devices linked to the brain that may lead to novel treatment for paralysis as result of spinal cord injury or stroke. His work in the field of neuroprosthetics and neurosurgical devices has yielded him numerous accolades as a scientist, a neurosurgeon, and an inventor. On a national ...

Successful Strategies for Integrating EHRs and Practice Management Systems

Duration: 81:31
Published: 2010-11-01
Uploaded: 2010-11-17
Author: HRSAtube

7/9/2010 -As HRSA grantees and the safety net community implement electronic health record systems (EHR), one of the most important issues is how an EHR implementation will affect your practice management system (PMS). A health center cannot truly be successful with their EHR system unless they have a solid PMS that feeds into many functions essential to running a health center. A PMS enables a health center to effectively address their financial, administrative, clinical, and regulatory needs, just as an EHR is a tool for helping clinicians provide high quality healthcare to their patients. The presenters in this webinar will provide tips and examples from their health centers on how to successfully integrate and overcome obstacles when incorporating your PMS system during your EHR implementation. Presenters: Bob Kohl Maine Primary Care Association; David Selig Community Care Network of Virginia; Michele Russell Health Choice Network Embedded at: www.hrsa.gov

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Shuffle Blues Solo 1 - Intermediate