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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the use of Coherence techniques along and between scan lines?(a) To simplify the calculations(b) To determine the area edges(c) To find polygon region(d) To correct interior areaThe question was asked in examination.I'd like to ask this question from Anti Aliasing in division Animations and Realism of Computer Graphics

Answer»

The CORRECT choice is (a) To simplify the calculations

The best I can EXPLAIN: Coherence techniques are USED along and between scan lines to simplify the calculations.

2.

Another method for determining the percentage of pixel area within a boundary is(a) Mid-print algorithm(b) Mid-point algorithm(c) Pixel intensity(d) By using inquiry functionsThis question was posed to me in final exam.Question is taken from Anti Aliasing topic in chapter Animations and Realism of Computer Graphics

Answer»

The CORRECT CHOICE is (b) Mid-point ALGORITHM

To elaborate: This algorithm selects the NEXT pixel along a line by determining which of 2 PIXELS is closer to the line between 2 pixels.

3.

Super-sampling methods can be applied by(a) Sub-dividing the total area(b) Determining the number of sub-pixels inside the area(c) Both a and b(d) Only bThe question was asked at a job interview.The question is from Anti Aliasing in division Animations and Realism of Computer Graphics

Answer»

Right OPTION is (c) Both a and b

Easiest explanation: Super-sampling methods can be APPLIED by sub-dividing the total area and DETERMINING the NUMBER of sub-pixels inside the area boundary.

4.

An array of values specifying the relative importance of sub-pixel is referred as________ of sub-pixel weights.(a) Sub-mask(b) Mask(c) Pixel phasing(d) Pixel weightingThe question was posed to me in class test.Question is from Anti Aliasing topic in section Animations and Realism of Computer Graphics

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Correct CHOICE is (C) Pixel phasing

For explanation: NONE.

5.

The technique that ismore accurate method for anti-aliasing lines is(a) Filtering(b) Area-sampling(c) Super-sampling(d) NoneThe question was posed to me during an internship interview.This intriguing question comes from Anti Aliasing in division Animations and Realism of Computer Graphics

Answer»

Right CHOICE is (a) Filtering

For EXPLANATION I would say: In this TECHNIQUE we can imagine a continuous weighting SURFACE COVERING the pixel.

6.

For a 45% line, the line path is________ on the polygon area.(a) Horizontal(b) Centered(c) Vertical(d) Any of theseThis question was posed to me during an online interview.The question is from Anti Aliasing in section Animations and Realism of Computer Graphics

Answer» CORRECT OPTION is (b) CENTERED

The explanation is: The line path is centered on the polygon area only if a line is 45%.
7.

The procedure that increases the number of intensity levels for each pixel to total number of sub-pixels is(a) Area-sampling(b) Anti-aliasing(c) Super-sampling procedure(d) Only cI have been asked this question during an interview.The query is from Anti Aliasing in portion Animations and Realism of Computer Graphics

Answer» RIGHT choice is (d) Only c

The EXPLANATION: The super-sampling procedure increases the NUMBER of INTENSITY levels for each pixel to total number of sub-pixels.
8.

Area-sampling is also known as(a) Pre-filtering(b) Pixel phasing(c) Post-filtering(d) Anti-aliasingThe question was posed to me during an internship interview.Question is from Anti Aliasing topic in portion Animations and Realism of Computer Graphics

Answer» RIGHT OPTION is (a) Pre-filtering

The EXPLANATION: NONE.
9.

If we want to use more intensity levels to anti-alias the line, then(a) We increase the number of sampling positions(b) We decrease the number of sampling positions(c) We increase the number of pixels(d) Only cI have been asked this question by my school teacher while I was bunking the class.My question is based upon Anti Aliasing in section Animations and Realism of Computer Graphics

Answer»

Correct CHOICE is (a) We increase the NUMBER of sampling positions

Explanation: We increase the number of sampling positions across each pixel to USE more INTENSITY levels.

10.

Raster objects can also be anti-aliased by shifting the display location of pixel areas is known as(a) Super-sampling(b) Pixel shaping(c) Pixel phasing(d) Any of theseI got this question in a job interview.Asked question is from Anti Aliasing topic in portion Animations and Realism of Computer Graphics

Answer» CORRECT OPTION is (c) PIXEL phasing

For EXPLANATION I would say: This TECHNIQUE is applied by micro-positioning the electron beam in relation to object geometry.
11.

Anti-aliasing by computing overlap areas is referred to as(a) Area-sampling(b) Super-sampling(c) Pixel phasing(d) Only bThis question was addressed to me during an internship interview.The doubt is from Anti Aliasing topic in chapter Animations and Realism of Computer Graphics

Answer»

Correct choice is (a) Area-sampling

The explanation: The intensity of PIXEL as a WHOLE is determined without CALCULATING sub-pixel intensity.

12.

The sampling of object characteristic at a high resolution and displaying the result at a lower resolution is called?(a) Super-sampling(b) Post-filtering(c) Anti-aliasing(d) a or bThis question was posed to me by my school teacher while I was bunking the class.I'm obligated to ask this question of Anti Aliasing topic in division Animations and Realism of Computer Graphics

Answer»

Right answer is (d) a or b

To EXPLAIN: Super-sampling is also called Post-filtering by computing intensities and COMBINES results to OBTAIN the pixel intensities.

13.

To avoid losing information from periodic objects we need(a) Sampling frequency twice(b) Nyquist sampling frequency(c) Both a or b(d) Neither a nor bThis question was posed to me in an interview.I'd like to ask this question from Anti Aliasing in division Animations and Realism of Computer Graphics

Answer»

The CORRECT answer is (C) Both a or b

For explanation I WOULD say: Because nyquist sampling frequency MEANS sampling frequency TWICE.

14.

Nyquist sampling frequency formula is(a) fs=2fmax(b) fs=2fmin(c) fs=fmax(d) fs=fminI had been asked this question in semester exam.This interesting question is from Anti Aliasing in division Animations and Realism of Computer Graphics

Answer»

The CORRECT CHOICE is (a) fs=2fmax

The EXPLANATION is: NONE.