upsample

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upsample

(1) To make a digital audio signal higher quality by increasing the sample rate, for example, from 44.1 kHz to 88.2 kHz, and interjecting new samples in between existing samples. The sample size (word size) is also increased for finer granularity. The objective is to have a smoother digital wave going into the digital-to-analog converter (see DAC). Contrast with downsample. See sampling, oversampling and high-resolution audio.

(2) To increase the color depth of a digital image, for example, from 16 bits per pixel to 24 bits per pixel. See color depth, pixel and upscale.
References in periodicals archive ?
Experience stunning stereo sound with aptX-HD, 24-bit upsampling DAC, and extended wireless range.
The RDWT is eliminated downsampling and the upsampling process of discrete wavelet transform.
This super-resolution scheme is based on resampling the image: downsampling and upsampling back.
Meanwhile, the scale of the signal is changed by subsampling; upsampling and downsampling.
Step 6: The motion mask is transformed to original size by dyadic upsampling and morphological dilatation.
The upsampling operation equals the signal frequency as the former analysis filter frequency.
In [5], a noise-aware upsampling filter is designed via the inherent noisy nature of real-time depth data and can help researchers to up-sample the low resolution 3D data to the image resolution of the video sensor.
A unified bayesian approach to multiframe super-resolution and single-image upsampling in multi-sensor imaging.
Figure 1 illustrates the principle eigenvector for the tensor model in the synthetic phantom and the results reconstructed using B-spline interpolation, nonlocal upsampling, the proposed HOSVD, and the proposed HOSVD-M.
One is the resampling, which can be divided into the down- and upsampling.
Burms ,"On upsampling, downsampling, and rational sampling rate filter banks," IEEE Trans Signal Process, vol.
That means we need to see 120Hz panels become much more common before the 1/2 or 1/3 fallback point will correspond to the minimum refresh rate necessary to take advantage of retinal upsampling.