Hi everyone, Is there any one can help me for the following question: (Data Comm

Question

Hi everyone, Is there any one can help me for the following question: (Data Communication and Net-Centric)

((( It is only one question but separated into tasks))..

Explore the video and image transmission capability using electronic devices.

Discuss how a color image is represented? Calculate the size of a 640×480 pixel image (termed as one frame) with resolution of 3 byte/pixel (assuming no data compression is done).

For transmitting such images at a rate of 30 frames/second, calculate the bit rate necessary for real time transmission.

Explore data compression for better use of communication bandwidth.

Thanks guys..

Explanation / Answer

-> Video and image transmission capabilities using electronics devices, this techniques transmit through wireless channel so it requires image that should be compatible with the bandwidth. Compression techniques are can be used to reduce the redundant data from the image compatible with bandwidth of the channel.

->For a 6*4 image of 640*480 image the image size is calculated as 640*480 which is 307200 pixels. The memory cost for this rgb color is 640*480*3=921600 bytes.

-> bit rates for transmitting such images is 640*480*24*30= 221 GPS.

-> Data compression and network management techniques will not solve the bandwidth bottleneck but it will contribute for better performance with minimal impact on network.

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