Lightfield random-access coding and measurement framework

Having a directory with sorted LF images, the data can be encoded as:

./lfCodec --input input/ --output output/

To encode a frame in the middle of the sequence use:

./lfCodec --input ./output/ --output ./decoded/ --factor 0.5

The implementation also measures the en/decoding times and size of the results.

Scripts

Additional scripts used for measurements.

• interpolate.py - simple interpolator using a simplified technique of LF Rendering
• metrics - prints image similarity metrics PSNR, SSIM, WMAF
• sparser - creates sparser dataset from the given dense one
• visualQuality - used to measure average times and visual quality
• reverseOrder - simple tool that reverses the order of files in a folder - renaming
• lfBlending.py - implements a simple LF blending algorithm with variable focus value
• GPUDecodingTest - compares the decoding performance of GPU accelerated H.265 and JPEG2000
• timeHEVC.sh - comparison of decoding times between all I and P frames
• avgCalculator.py - helper script for processing of the measured data - gets avg values from columns in the files
• measurement - helper script for visual quality measurement