Jessica Fridrich
Encyclopedia
Jessica Fridrich is the inventor of the most commonly used method for speed-solving the Rubik's Cube
, better known as speedcubing
.
This method describes solving the cube in a layer-by-layer fashion. First a so-called "cross" is made on the first layer, consisting of the center piece and four edges. The first layer corners and edges of the second layer are put into their correct positions simultaneously (four pairs). The last layer is solved by first orienting and then permuting the last layer cubies using a large number of algorithms.
Fascinated by puzzles and complex geometry, Fridrich has Rubik's Cube inventor Ernő Rubik
's signature in her notebook, which he signed at the Rubik's Cube World Championship in Budapest
in 1982, where she finished tenth. In the second Rubik's Cube World Championship in Toronto, Canada
, she finished second, behind Dan Knights.
In the speedcubing community she is considered one of the pioneers of speedcubing, along with Lars Petrus
. Nearly all of the fastest speedcubers have based their methods on Fridrich's, usually referred to as CFOP (Cross, First 2 Layers, Orient Last Layer, Permute Last Layer).
and specializes in digital watermarking and forensics.
Rubik's Cube
Rubik's Cube is a 3-D mechanical puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik.Originally called the "Magic Cube", the puzzle was licensed by Rubik to be sold by Ideal Toy Corp. in 1980 and won the German Game of the Year special award for Best Puzzle that...
, better known as speedcubing
Speedcubing
Speedcubing is the activity of solving a Rubik's Cube or related puzzle as quickly as possible...
.
This method describes solving the cube in a layer-by-layer fashion. First a so-called "cross" is made on the first layer, consisting of the center piece and four edges. The first layer corners and edges of the second layer are put into their correct positions simultaneously (four pairs). The last layer is solved by first orienting and then permuting the last layer cubies using a large number of algorithms.
Fascinated by puzzles and complex geometry, Fridrich has Rubik's Cube inventor Ernő Rubik
Erno Rubik
Ernő Rubik is a Hungarian inventor, architect and professor of architecture. He is best known for the invention of mechanical puzzles including Rubik's Cube , Rubik's Magic, Rubik's Magic: Master Edition, Rubik's Snake and Rubik's 360....
's signature in her notebook, which he signed at the Rubik's Cube World Championship in Budapest
Budapest
Budapest is the capital of Hungary. As the largest city of Hungary, it is the country's principal political, cultural, commercial, industrial, and transportation centre. In 2011, Budapest had 1,733,685 inhabitants, down from its 1989 peak of 2,113,645 due to suburbanization. The Budapest Commuter...
in 1982, where she finished tenth. In the second Rubik's Cube World Championship in Toronto, Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
, she finished second, behind Dan Knights.
In the speedcubing community she is considered one of the pioneers of speedcubing, along with Lars Petrus
Lars Petrus
Lars Petrus made his name as an internationally accomplished speedcuber in 1982 when he became the national champion of Sweden, and went on to finish fourth overall at the first official Rubik's Cube World Championships held in Budapest, Hungary. He later published his unique method, known as the...
. Nearly all of the fastest speedcubers have based their methods on Fridrich's, usually referred to as CFOP (Cross, First 2 Layers, Orient Last Layer, Permute Last Layer).
Professional life
Jessica Fridrich works as a professor at the Department of Electrical and Computer Engineering at Binghamton UniversityBinghamton University
Binghamton University, also formally called State University of New York at Binghamton, , is a public research university in the State of New York. The University is one of the four university centers in the State University of New York system...
and specializes in digital watermarking and forensics.
Patents
- 7,787,652 Lossless embedding of data in digital objects
- 7,787,030 Method and apparatus for identifying an imaging device
- 7,616,237 Method and apparatus for identifying an imaging device
- RE40,477 Reliable detection of LSB steganographySteganographySteganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity...
in color and grayscale images - 7,239,717 Lossless embedding of data in digital objects
- 7,006,656 Lossless embedding of data in digital objects
- 6,831,991 Reliable detection of LSB steganographySteganographySteganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message, a form of security through obscurity...
in color and grayscale images