Page 122 - The Indian Optician Digital Edition May-June 2023

Disadvantages of human vision
COMPUTER
VISION
ADVANTAGES AND DISADVANTAGES OF
HUMAN VISION AND COMPUTER VISION
There are advantages and disadvantages to
both human vision and computer vision.
Advantages of human vision
 High resolution: The human eye has a high
resolution, which means that it can see small
details. This is important for tasks such as
reading and recognising faces.
 Wide field of view: The human eye has a
wide field of view, which allows us to see
a large area of the world around us. This is
important for safety and navigation.
 Colour vision: The human eye can see a
wide range of colours. This is important
for tasks such as identifying objects and
understanding the environment.
 Depth perception: The human eye has two
eyes, which are located slightly apart from
each other. This allows us to see in three
dimensions, which is important for tasks such
as driving and playing sports.
 Adaptability: The human eye can adapt to
a wide range of lighting conditions. This is
important for tasks such as driving at night
and reading in low light.
118 | THE INDIAN OPTICIAN | MAY-JUNE 2023
 Blind spots: The human eye has blind spots,
which are areas of the field of view that
cannot be seen. This is because the optic
nerve passes through the retina, which is the
part of the eye that senses light.
 Motion blur: The human eye can only see a
limited number of frames per second. This
means that objects that are moving quickly
may appear blurry.
 Night blindness: Some people have difficulty
seeing in low light. This is due to a condition
called night blindness, which is caused by a
deficiency in the retina.
 Colour blindness: Some people have
difficulty seeing certain colours. This is due
to a condition called colour blindness, which
is caused by a deficiency in the cones, which
are the cells in the retina that sense colour.
 Refractive errors: Some people have
refractive errors, such as nearsightedness or
farsightedness. These errors cause light to
focus in front of or behind the retina, which
can lead to blurred vision.
Advantages of computer vision
 Accuracy: Computer vision systems can
be very accurate, often more accurate
than humans. This is because they are not
susceptible to the same biases and errors that
humans are.
 Speed: Computer vision systems can process
images and videos much faster than humans.
This allows them to track objects and events
in real time, which is essential for applications
such as self-driving cars.
 Scalability: Computer vision systems can
be scaled up to handle large amounts of
data. This is important for applications such
as facial recognition, which need to be able
to identify people from a large database of
images.
 Cost-effectiveness: Computer vision systems
are becoming increasingly cost-effective.
This is due to the development of new
technologies, such as deep learning, which
have made it possible to train computer
OPTOMETRY