Timelapse-ul a rupt niște bariere tehnologice destul de mari, în ultimii ani, dând impresia că nu vom vedea niște revoluții folosind această tehnică, prea curând. Dar iată că minunile tehnice încă apar. În mediul subacvatic, Daniel Stoupin a reușit să realizeze un timelapse subacvatic, în condiții foarte grele, dar cu un rezultat unic. Focus stacking subacvatic? Algoritmi de deconvoluție? (orice o fi însemnând asta, sună sofisticat!). Mai multe detalii, pe blogul său.
“”Slow” marine animals show their secret life under high magnification. Corals and sponges build coral reefs and play crucial roles in the biosphere, yet we know almost nothing about their daily lives. These animals are actually very mobile creatures. However their motion is only detectable at different time scales compared to ours and requires time lapses to be seen.
Make sure you watch the video on a large screen. This clip is displayed in Full HD, yet the source footage (or the whole clip), is available in UltraHD 4k resolution for media productions.
The answer to a common question: yes, colors are “real” and not exaggerated by digital enhancement. We have only applied basic white balance correction. However, we used specialized lights to mimic the underwater ambient spectrum. When photographers use white light (artificial spectrum) on corals, they simply miss the vast majority of colours. Corals have spectrum-sensitive colouration due to fluorescent pigments.
The duration of sequences varied from 20 minutes to 6+ hours.
=== Technical details ===
To make this little clip we took 150000 shots. Why so many? Because macro photography involves shallow depth of field. To extend it, we used focus stacking and deconvolution algorithms. Each frame of the video is actually a stack that consists of 3-12 shots.
Just the intro and the last scene are regular real-time footage. One frame required about 10 minutes of processing time (raw conversion + stacking + deconvolution in some scenes). Unfortunately, the success rate was very low due to copious technical challenges and we spent almost 9 long months to get it right.
Music: Atmostra III by Cedric Baravaglio, Jonathan Ochmann and Zdravko Djordjevic.
=== Sharing/Use ===
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