Evaluate the coding artifacts in mpeg encoding

Assignment Help Computer Engineering
Reference no: EM131324835

Question 1

(a) Calculate the binary values of the following decimals. The integer part of the converted binary numbers has a bit length of 8 bits.

(i) 11 (ii) -12 (iii) 3.141 (iv) -5.252

(b) Differentiate between the advantages and disadvantages of digital signals over that of analogue signals.

(c) Describe the phenomenon of persistence of vision and its importance in the creation of the illusion of motion in a movie?

(d) When setting up or tuning your MIO TV system provided by SINGTEL, you may often come across the video specification resolution settings of 1080p and 1080i respectively. Discuss with relevant illustrations the significance of "1080", "p" and "i" to the video quality expected from these selections.

Question 2

(a)

(i) Describe in brief the process of Chroma subsampling as a useful tool in analogue video encoding process.

(ii) Explain the difference in the Chroma sampling process between the 4:4:4 and 4:2:2 standards used in the current video industry. Cite two high-end digital video formats and interfaces that uses the 4:2:2 sampling scheme.

(b)

(i) Use appropriate diagrams to demonstrate how a NTSC Video signal can be digitized.

(ii) If a PAL Video signal is to be digitized, briefly appraise the changes in system specifications that must be made when compared to the digitization of the NTSC signal.

(c) Differentiate the different video format specifications by completing Table Q2(c).

Active Resolution
(H x V)

Definition of TV
Signal Quality
(eg SDTV, HDTV,
UHDTV etc)

Frame Rate Used
(also indicate "I" or "P" scanning mode)

Screen Aspect Ratio

720 x 480

 

 

 

720 x 576

 

 

 

1920 x 1080

 

 

 

3840 x 2160

 

 

 

7680 x 4320

 

 

 

Question 3

(a) Relate to appropriate illustrations from the Study Guide, to show Photopic and Scotopic Vision are achieved in the human eye. Keep your answer concise.

(b) Write down equations that enable us to generate Chroma value and Luminance signals from Colour Component inputs. Illustrate with a suitable block diagram to show the signal generation process.

(c) Explain the terms, "Visual Acuity" and "Spatio-Temporal Response" of the human eye. Use appropriate diagrams to support your presentation.

(d) Critique the role of human eye saccade in the role of resolution improvement in tracking video scenes.

Question 4

(a) Produce a sketch of the Inter-frame Coding algorithm. Briefly describe the roles of the blocks performing motion estimation/motion compensation, inverse discrete cosine transform and frame store respectively.

(b) Evaluate the coding artifacts (showing up as video noise) in MPEG encoding. Provide the following details:

(i) the signal characteristics of video noise (ii) the causes of the video noise, and, (iii) suggest methods to reduce the video noise.

Note that the discussions presented here should be open-ended.

(c) Calculate the uncompressed video file size of a UHD (2160p/60p) video clip from an hour long recording session for the following formats with data rates given below:

(i) BluRay H.264 (ii) MPEG2 High (iii) PRORes422 (iv) RAW RGB 3x8 bit (v) RAW RGB 3x16 bit

Use an appropriate video file size calculator from the internet to determine the file sizes above such as:

https://toolstud.io/video/filesize.php?imagewidth=1920&imageheight=1080&framerat e=25&timeduration=60&timeunit=seconds

(d) Table Q4(d) shows the different video formats and compression types. You have been tasked to produce a short 5 minute overview of your understanding of the course MTD207eVideo Technology which will be streamed later via the YouTube channel. Apply justifiable reasons to support your selections of the recording format to be used and also provide the suitable export file format to be uploaded to YouTube taking into considerations internet bandwidth limitations as well as retention of adequate audio and video quality.

Format

Resolution

Compression Type

Data Rate

Applications

MJPEG

720x486

Intra-frame

0.5-25

MB/sec

General

MPFG-1

352-240

Intra-frame

0.01-0.06

MB/sec

Video CD, CD- Rom, Web

MPEG-2

720x480

Infra- and
Inter-frame

0.01-2 MB/sec

DVD, Satellite TV

H264

720x480
1080P
720P

Intra-frame
Inter-frame

0.01-30
MB/sec

Consumer,
Industrial,
Broadcast

 

Reference no: EM131324835

Questions Cloud

Social security with holdings in its payroll register : CycloCorp is calculating the total withholding deposit for all its employees at the end of its pay period. CycloCorp has $3,455.00 of federal withholdings for its employees. It also has a total of $231.54 of Medicare with holdings and $988.72 in Soci..
What arthur miller saying about success and american dream : Write the given paper assignment.- What is Arthur Miller saying about success and the American Dream? How does he convey his theme?
Sanitary landfills for burial of municipal solid wastes : The use of sanitary landfills for burial of municipal solid wastes has been the primary mode of waste disposal in the United States for almost a half century. As your text has indicated, in the United States 55% of wastes generated are placed in l..
Evaluate the impact of such a price cut on total cost : The marketing department has estimated the arc elasticity of demand for polyol to be -2.0.
Evaluate the coding artifacts in mpeg encoding : Evaluate the coding artifacts (showing up as video noise) in MPEG encoding. Provide the following details: (i) the signal characteristics of video noise (ii) the causes of the video noise, and, (iii) suggest methods to reduce the video noise.
What will be the difference in the required returns : HR Industries (HRI) has a beta of 2.4, while LR Industries's (LRI) beta is 0.5. The risk-free rate is 6%, and the required rate of return on an average stock is 13%. The expected rate of inflation built into rRF falls by 1.5 percentage points; the re..
Acid rain a problem for plant species and crops : Knowing that acid rain has a pH of 2 - 3 would you conclude that crop species with a narrow soil pH range are in trouble? Explain why, or why not, using scientific reasoning. Is acid rain a problem for plant species and crops?
Hematology case study : Candy is a 13 year old who lives with her father and younger sister. Her mother died when Candy was 6 years old and her sister was 4 years old. Her father works a 12 hour shift full time to support himself and his daughters
Discuss challenges or opportunities and impact to society : Analyze an alternative family form to better understand and appreciate human diversity.- Discuss the challenges and/or opportunities and impact to our society.

Reviews

Write a Review

Computer Engineering Questions & Answers

  Mathematics in computing

Binary search tree, and postorder and preorder traversal Determine the shortest path in Graph

  Ict governance

ICT is defined as the term of Information and communication technologies, it is diverse set of technical tools and resources used by the government agencies to communicate and produce, circulate, store, and manage all information.

  Implementation of memory management

Assignment covers the following eight topics and explore the implementation of memory management, processes and threads.

  Realize business and organizational data storage

Realize business and organizational data storage and fast access times are much more important than they have ever been. Compare and contrast magnetic tapes, magnetic disks, optical discs

  What is the protocol overhead

What are the advantages of using a compiled language over an interpreted one? Under what circumstances would you select to use an interpreted language?

  Implementation of memory management

Paper describes about memory management. How memory is used in executing programs and its critical support for applications.

  Define open and closed loop control systems

Define open and closed loop cotrol systems.Explain difference between time varying and time invariant control system wth suitable example.

  Prepare a proposal to deploy windows server

Prepare a proposal to deploy Windows Server onto an existing network based on the provided scenario.

  Security policy document project

Analyze security requirements and develop a security policy

  Write a procedure that produces independent stack objects

Write a procedure (make-stack) that produces independent stack objects, using a message-passing style, e.g.

  Define a suitable functional unit

Define a suitable functional unit for a comparative study between two different types of paint.

  Calculate yield to maturity and bond prices

Calculate yield to maturity (YTM) and bond prices

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd