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With the bottom-line goal of increasing the throughput of a GPU-accelerated JPEG 2000 encoder, this paper evaluates whether the post-compression rate control and packetization routines should be carried out on the CPU or on the GPU. Three co-processing models that differ in how the workload is split among the CPU and GPU are introduced. Both routines are discussed and algorithms for executing them...
JPEG 2000's most computationally expensive building block is the Embedded Block Coder with Optimized Truncation (EBCOT). This paper evaluates how encoders targeting a parallel architecture such as a GPU can increase their throughput in use cases where very high data rates are used. The compression efficiency in the less significant bit-planes is then often poor and it is beneficial to enable the Selective...
In professionel movie post-production, various components are pushed to their performance limits. Former processors for example were not able to playback the JPEG 2000 compressed image-sequences which are used for distribution in Digital Cinema as well as long term storage in digital archiving — in real time. While today's processors are able to decode such files a new bottleneck became part of the...
It is a fact, that we are surrounded by more and more ubiquitous services in entertainment computation. All sorts of devices are more and more connected, and personalization becomes more and more a major issue. We are living in a world with two layers: the real physical layer being our real-world, and its synthetic overlay consisting of location-based services, chatting applications, or Web 2.0 offers...
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