Digital imagingDigital imaging or digital image acquisition is the creation of a digital representation of the visual characteristics of an object, such as a physical scene or the interior structure of an object. The term is often assumed to imply or include the , , , printing and display of such images. A key advantage of a , versus an analog image such as a film photograph, is the ability to digitally propagate copies of the original subject indefinitely without any loss of image quality.
Emotion recognitionEmotion recognition is the process of identifying human emotion. People vary widely in their accuracy at recognizing the emotions of others. Use of technology to help people with emotion recognition is a relatively nascent research area. Generally, the technology works best if it uses multiple modalities in context. To date, the most work has been conducted on automating the recognition of facial expressions from video, spoken expressions from audio, written expressions from text, and physiology as measured by wearables.
Décimal codé binaireLe décimal codé binaire (DCB) (binary coded decimal ou BCD en anglais), est un système de numération utilisé en électronique numérique et en informatique pour coder des nombres en se rapprochant de la représentation humaine usuelle, en base 10. Dans ce format, les nombres sont représentés par un ou plusieurs chiffres compris entre 0 et 9, et chacun de ces chiffres est codé sur quatre bits : Chiffre Bits 0 0000 1 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 1001 Ainsi, pour coder un nombre tel que 127, il suffit de coder chacun des chiffres 1, 2 et 7 séparément, et l'on obtient la valeur 0001 0010 0111.
Offset binaryOffset binary, also referred to as excess-K, excess-N, excess-e, excess code or biased representation, is a method for signed number representation where a signed number n is represented by the bit pattern corresponding to the unsigned number n+K, K being the biasing value or offset. There is no standard for offset binary, but most often the K for an n-bit binary word is K = 2n−1 (for example, the offset for a four-digit binary number would be 23=8).
Partition binaire de l'espacethumb|Partition binaire de l'espace (haut) et arbre BSP correspondant (bas). L'espace contient des segments {A, B1, B2, C1, C2, D1, D2, D3}. Le nœud racine contient le segment A ; les deux sous-arbres correspondent aux zones de part et d'autre de A. thumb|Partition binaire d'un espace à trois dimensions pour la construction d'un arbre k-d. La partition binaire de l'espace (binary space partitioning ou BSP) est un système utilisé pour diviser l'espace en zones convexes.
