Signals & Systems #05 | DT Scaling & Reversal: Decimation, Upsampling & Time Flip
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Signals & Systems #05 | DT Scaling & Reversal: Decimation, Upsampling & Time Flip
2 months ago
YouTubeEngineeringENG
Universe unveiled on Instagram: "Downsampling reduces an image’s size by selecting fewer pixels from the original, keeping only the larger visual patterns while discarding fine details. As the number of samples decreases, small features disappear, edges soften, and textures lose definition. Yet the main shapes remain clear enough that the scene is still easy to recognize. This process is used in cameras, editing software, and machine-learning systems to shrink data and speed up processing. While
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Universe unveiled on Instagram: "Downsampling reduces an image’s size by selecting fewer pixels from the original, keeping only the larger visual patterns while discarding fine details. As the number of samples decreases, small features disappear, edges soften, and textures lose definition. Yet the main shapes remain clear enough that the scene is still easy to recognize. This process is used in cameras, editing software, and machine-learning systems to shrink data and speed up processing. While
14.5K views4 months ago
Instagramuniverseunveilled
PEEPER on Instagram: "Physically slicing an image into smaller pieces is one of the simplest ways to understand downsampling, because each fragment retains the large shapes while losing the fine details that disappear at lower resolution. Digital downsampling works the same way by averaging and compressing pixels so the overall structure stays clear, yet the tiny patterns the eye would barely notice at smaller sizes are removed to save space and processing power. Seeing the process physically ma
0:41
PEEPER on Instagram: "Physically slicing an image into smaller pieces is one of the simplest ways to understand downsampling, because each fragment retains the large shapes while losing the fine details that disappear at lower resolution. Digital downsampling works the same way by averaging and compressing pixels so the overall structure stays clear, yet the tiny patterns the eye would barely notice at smaller sizes are removed to save space and processing power. Seeing the process physically ma
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