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Bücher Englische Bücher Wissen & Bildung Naturwissenschaft, Medizin, Informatik, Technik Technik Image and Video Coding for Machines
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Image and Video Coding for Machines
Kristian Fischer (Broschiert, Englisch)
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Beschreibung
The technological process of the recent years led to a steadily increased amount of applications, where digital communication not only occurs between humans, but also between multiple machines. In the latter machine-to-machine communication scenario, large amounts of data is captured, shared, and analyzed. Especially for the case of transmitting high-dimensional image and video data, a reliable… transmission is usually not feasible without compressing the data before transmission. For this type of data, well-known and standardized lossy codecs exist to reduce the bitrate. However, those codecs are optimized to deliver the best possible visual quality for a human observing the decompressed data.
From this, the first research question of this thesis arises how image and video codecs that are intended for human consumption behave when being deployed in coding scenarios for machines. To that end, this thesis first develops an evaluation framework that compares the coding performances for humans and machines for a given setup. Since they achieved bench-marking performances for analyzing images and videos, this thesis considers deep convolutional neural networks as machines. The carried-out investigations reveal that the new coding tools and optimizations proposed for the human, do not necessarily improve the compression performance when coding for machines.
Consequently, the follow-up research question emerges on how to evolve more efficient machine-optimized image and video coding frameworks and tools based on the well-known codecs designed for humans. Therefore, this thesis develops various sophisticated concepts with the goal of reducing the bitrate while still preserving the resulting task accuracy at the decoder side. The concepts are tailored for the two different codec types of traditional, hybrid codecs and learned, neural-network-based codecs. The presented methods help to reduce the required bitrate by up to 75% at the same task accuracy. Dieses Produkt haben wir gerade leider nicht auf Lager.
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Bis zu 50 % günstiger als neu
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Technische Daten
Erscheinungsdatum
06.11.2023
Sprache
Englisch
EAN
9783843953702
Herausgeber
Dr. Hut
Serien- oder Bandtitel
Ingenieurwissenschaften
Sonderedition
Nein
Autor
Kristian Fischer
Seitenanzahl
214
Einbandart
Broschiert
Schlagwörter
Image and video compression, Machine-to-machine communication, Deep neural networks
Thema-Inhalt
TBC - Ingenieurswesen, Maschinenbau allgemein
Höhe
210 mm
Breite
14.8 cm
-.-
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