MIL-HDBK-1300A
delaying the transit time of a signal to allow other operations to occur. 2. To allocate and schedule
the use of buffers. 3. An isolating circuit used to prevent a driven circuit from influencing the driving circuit. 4. In an optical fiber cable, a component used to encapsulate an optical fiber, thus providing mechanical isolation and/or protection from physical damage. Note: Cable fabrication techniques vary, some resulting in firm contact between fiber and protective buffering, others resulting in a loose fit, permitting the fiber to slide in the buffer tube. Multiple buffer layers may be used for added fiber protection.
am. Busyness codes - A code associated with the Adaptive Recursive Interpolated Differential Pulse Code Modulation (ARIDPCM) image compression algorithm corresponding to the dynamic range of an 8x8 pixel neighborhood.
an. Byte - A sequence of N adjacent binary digits, usually treated as a unit, where N is a nonzero integral number. Note: In pre-1970 literature, "byte" referred to a variable length field. Since that time the usage has changed so that now it almost always refers to an eight-bit field. This usage predominates in computer and data transmission literature; when so used, the term is synonymous with "octet." For the purpose of MIL-STD-188-198A (JPEG), a byte is defined as an eight-bit octet.
ao. Byte stuffing - A procedure in which either the Huffman coder or the arithmetic coder inserts a zero byte into the entropy-coded segment following the generation of an encoded hexadecimal 0xFF byte. For the purpose of NITFS, in Serial Line Internet Protocol (SLIP), a technique used to avoid spurious appearances of the END character within a frame.
ap. C1 - The code used to indicate the Bi-level compression algorithm in the image compression (IC) field of the image subheader.
aq. C2 - The code used to indicate the ARIDPCM compression algorithm in the image compression (IC) field of the image subheader.
ar. C3 - The code used to indicate the JPEG compression algorithm in the image compression (IC) field of the image subheader.
as. C4 - The code used to indicate the Vector Quantization compression algorithm in the image compression (IC) field of the image subheader.
at. Cartesian coordinate system - The image pixel coordinate system used in the NITFS shall be the Cartesian coordinate system with origin (0,0) defined by rows and columns, positive right and down as the image is viewed. The positive row axis (r) is in the direction from the top to the bottom, down the raster scan. The positive column axis (c) is in the direction from the left to the right, along the raster scan direction. Image coordinates shall be given as an ordered pair (r,c) where the first number, r, indicates the row and the second number, c, indicates the column of the pixel.
au. CCITT group 3 - Bi-level image encoding, one- and two-dimensional, as defined in
CCITT Recommendation T.4.
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