
Give examples of typical
analog images and describe their general characteristics.

Explain why analog images are useful.

Describe the general
structure of a digital image in terms of pixels and bits.

Briefly describe as many functions as possible
that can be performed with digital medical images that are not possible with
analog images.

Explain the structural characteristic of a
digital image that introduces blurring and limits
visibility of detail.

Explain and illustrate how
pixel size is affected by the size of the image
matrix.

Explain and illustrate how
pixel size is affected by the size of the imaged
area (field of view).

Explain and illustrate how computers write
numbers and the concept of bits.

Illustrate how the range of
values that can be written is related to the number of bits being used.

Briefly compare the methods used by both humans
and computers to write numbers and some general advantages and disadvantages of
each.

Describe and illustrate the concept of
bit depth of a pixel.

Identify and describe the characteristic of an
image that is affected by the bit depth.

Illustrate and describe how bit depth is
represented by both bits and bytes.

Identify the factors that determine the
numerical size of a digital image.

When you are given the appropriate factor values,
calculate the numerical size of an image in: bits,
bytes, kilobytes, and megabytes.

Explain how the numerical
size of a digital image relates to image quality.

Explain why the numerical size of a digital image
is a limiting factor in some applications.

Briefly describe the concept of
digital image compression.

Explain what is meant by "lossless"
compression.

Explain what is meant by "lossy"
compression and what must be considered in clinical applications.