This is the repository for papers and software related to progressive (or incremental) computation of image processing tasks. Our efforts are separated into hardware-oriented ORIP, software-oriented ORIP and operational tight packing (OpTiP). OpTiP is a tool used for concurrent arithmetic operations in software, which is essential for software-oriented ORIP.
The following paper is an approach to compute the Harris salient point detector progressively. This detector is the cornerstone of virtually all gradient-based detection algorithms today. The computational effort vs detection accuracy under the assumption of sequential adder and multiplier hardware is examined in detail in the paper:
The following two papers describe the incremental computation of the discrete wavelet transform under the direct 2D lifting scheme algorithm. The second paper presents results for the energy consumption of the arithmetic operations on a Xilinx FPGA implementation:
OpTiP is a framework for the establishment and usage of maximum packing in the calculation of a linear processing task by a computer. For the full paper with the analysis and experiments, see:
At SIPS'09, Davide Anastasia demonstrates incremental refinement of a filtering application versus conventional computation, both under scheduling jitter. The conventional approach leaves significant pars of the calculation incomplete, while the incremental approach provides a "best effort" result. These are indicated as "incomplete (or uncovered) frames" and "striped (or not fully-completed) frames"
The two demos at the University Booth of DATE 2010: (i) A conventional laptop and webcam running frame capturing and incremental processing under scheduling deadlines; (ii) The OLPC ("100$ laptop") running frame capturing and incremental edge detection with quality/framerate tradeoffs
This page last modified
17 January, 2012
by [Yiannis
Andreopoulos]