Why is it possible that when viewing images in an phone forensic extraction we may see...

Why is it possible that when viewing images in an phone forensic extraction we may see multiple images that are visually the same?

Expert Solution

In phone forensic extraction, most picture search engines take a text description as input and return a series of pictures that match the text description. If the context around the picture is known, then a wide range of online text-to-image search services are available. Unfortunately, an analyst may spend hours doing keyword searches and manually reviewing results, and may still not find the desired image. Digital picture analysis typically relies on perceptual hashes for reverse image searches. A perceptual hash is an algorithm that will yield similar hash values for visually-similar pictures. There are a wide variety of perceptual hash functions. Different algorithms may focus on colors, edges, corners, 'blobs', or frequency patterns. In general, these types of algorithms can match similar pictures, even if there are significant size, quality, and coloring differences. They may also match pictures with minor differences in content, cropping, and rotation.

venereology answered 4 months ago

Extraction question: Why shouldn’t you shake the separatory funnel too vigorously when performing an extraction? Why...

Extraction question: Why shouldn’t you shake the separatory funnel too vigorously when performing an extraction? Why shouldn’t you shake it too gently either?

why dont we see interference fringes when light shines through a window?

When viewing unions as monopoly sellers of a service, the goals the unions may pursue include...

When viewing unions as monopoly sellers of a service, the goals the unions may pursue include all of the following except A. maximizing wage rates for certain workers. B. maximizing profits for the employers of union members. C. employment for all union members. D. maximizing gross income for its members.

Discrete: Binomial - See Section 5.5 as to when you may use it. Poisson - See...

Discrete: Binomial - See Section 5.5 as to when you may use it. Poisson - See Section 5.6 as to when you may use it. Hypergeometric - See Section 5.7 as to when you may use it. Continuous: Uniform - See Section 6.1 as to when you may use it. Normal - See Section 6.2 Exponential - See Section 6.4 as to when you may use it. Your task for this discussion is as follows: As a manager of an...

Why do we may avoid normal shocks when designing aircraft geometries?

why we use NaOH and brine during the extraction(purification of product) in the synthesis of phenacetin...

why we use NaOH and brine during the extraction(purification of product) in the synthesis of phenacetin from acetaminophen

why do we see different colors come out when all the colors of white light enter...

why do we see different colors come out when all the colors of white light enter the drop? explain not only what happens but why explain why there is a second rainbow further out from the primary rainbow how is the second rainbow different from the primary(other then its position in the sky what explains why the sky is darker between the primary and secondary rainbow than above the primary?

Why do we see more innovation and development in the U.S?

What is the earliest point in the universe that we can observe? Why can’t we see...

What is the earliest point in the universe that we can observe? Why can’t we see back further than this? If the cosmic microwave background was generated by a 3000 K plasma why does it have a blackbody spectrum of a 2.73 K object? Which fundamental force is the first force to separate from the other forces? What is the second? Plz answer all questions i posted, it's my last question can be posted in this month, or i definitely...

When looking at the cost benefit analysis we are basically weighing our options. We see this...

When looking at the cost benefit analysis we are basically weighing our options. We see this type of method can be used for many different scenarios. Do you find most public administers would use a cost and benefit analysis to measure new projects or developments?

Question