lossy


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

lossy

(algorithm)
A term describing a data compression algorithm which actually reduces the amount of information in the data, rather than just the number of bits used to represent that information. The lost information is usually removed because it is subjectively less important to the quality of the data (usually an image or sound) or because it can be recovered reasonably by interpolation from the remaining data.

MPEG and JPEG are examples of lossy compression techniques.

Opposite: lossless.
References in periodicals archive ?
Incorporating lossy compression at appropriate points in the data supply chain can reduce data volumes without impacting the overall quality.
It reduces artifacts from lossy codecs and other low bitrate sources.
Realization of the lossy integrator and multiplier blocks are needed to design the Class A log domain circuit based on Fig.
The detailed study of a lossy parallel plates waveguide using the rigorous derivation of the dyadic Green's function, has been presented in [9].
As a result compression standard using DCT is termed as lossy (Gonzalez et al.
The time-dependent Maxwell's curl equations in a linear, lossy, and non-dispersive medium with permittivity [epsilon], permeability [mu], and electric conductivity [sigma] can be written as
For the lossy LWC case, the tags are specifically designed for optimum performance for each state of lossy LWCs as shown in Table 1.
The paper presents an entire-domain method for the analysis of horizontal wire antennas situated near or on the lossy ground with polynomial approximation for the current distribution along the antenna conductors.
Since this is a many to one mapping, it is a lossy process and is the main source of compression in an encoder.
Lossy effects are important when the interconnect limited rise time is longer than half a bit period, or RT > 0.
Compression algorithms can be divided into two broad categories: lossless compression and lossy compression.