mathematics

Rachid Deriche

Rachid Deriche is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Rachid Deriche rather than just read about it. In short: Rachid Deriche is a research director at Inria Sophia Antipolis, France, where he leads the research project Athena aiming to explore the Central Nervous System using computational imaging. He has published more than 60 journals and more than 180 conferences papers with a Google Scholar H-index of 67.

Key takeaways

Rachid Deriche belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Rachid Deriche to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Rachid Deriche from memory before moving on to harder problems.

Reference excerpt

Rachid Deriche is a research director at Inria Sophia Antipolis, France, where he leads the research project Athena aiming to explore the Central Nervous System using computational imaging. He has published more than 60 journals and more than 180 conferences papers with a Google Scholar H-index of 67. He is known for the development of the edge detection algorithm, named after him.

Background Deriche was born in 1954, in Thenia, Algeria. He studied electronics at Ecole Nationale Polytechnique of Algiers. In 1977, he moved to France to continue his studies at Ecole Nationale Superieure des Telecommunications of Paris, from which he graduated in 1979. Three years later, he received from University of Paris IX, Dauphine a Ph.D degree in mathematics. He obtained his HDR degree from University of Nice Sophia Antipolis in 1991.

Contributions Deriche has made major contributions to the scientific community, mainly in image processing, computer vision and neuro-imaging. In 1987, Deriche has developed Deriche Edge Detector which is a low-level, recursively implemented, optimal edge detector based on Canny's edge detector criteria for optimal edge detection. In 1998, based on his works in Computational image processing, Early vision, 3D reconstruction, panoramic photography, image-based modeling, and motion analysis, he co-founded with his Inria colleagues (among which O. Faugeras, T. Papadopoulo and L. Robert), Realviz, a start-up specialized in image-based content creation solutions for the film, broadcast, gaming, digital imaging and architecture. The startup was acquired by Autodesk in 2008. Deriche is currently devoting his research to explore the Central Nervous System by developing mathematical models and tools to reconstruct the functional and anatomical connections network of the brain.

Awards and honors ERC Advanced Grant: In 2016, R. Deriche received from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program a grant to support his research project “Computational Brain Connectivity Mapping”. Doctorate Honoris Causa: R. Deriche received the title of Honorary Doctor (honoris causa) from the University of Sherbrooke in 2014, to honor his scientific contributions and his approach in educating new generations of scientists French Academy of Sciences Grand Prize of the EADS: In 2013, R. Deriche was awarded Grand Prize of the EADS Corporate Foundation in Computer Science by the French Academy of Sciences for all his outstanding scientific contributions in computer science.

References

External links Inria Athena research project

Worked examples

Example 1 — a first encounter with Rachid Deriche

Start with the simplest possible case. Write down what Rachid Deriche claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Rachid Deriche before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Rachid Deriche ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Rachid Deriche

In research: Rachid Deriche appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Rachid Deriche in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Rachid Deriche is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1954 births, 21st-century Algerian physicists, Algerian computer scientists, so understanding it makes those chapters shorter.
In everyday life: Look for Rachid Deriche outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Rachid Deriche in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Rachid Deriche means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Rachid Deriche out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rachid Deriche in simple terms?

Why does Rachid Deriche matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Rachid Deriche?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Rachid Deriche.