interview questions at an MNC

1. write the DCT equations (1D & 2D)

2. What is linear and non-linear quantization?

3. Which one we would use in jpeg compression?
4. What is vector and scalar quantization? Which one we would use in jpeg compression?

5. When you apply 90 degree rotation in spatial domain, what is the change in DCT domain?
Prove with equations.

6. Mpeg4SP block diagram

C programming: interview

1. Write function for bit reversal:

Char function(char Input_Number)
{
….
….
….
Return Output_Number;

}


ARM:

1. Explain 5 stage pipeline in ARM9E processor

2. compare ARM9, ARM11, Cortex.