Bremerhaven, Bremen, Germany
# Web-based media encoding and publishing Automatic preparation of scientific images and videos for the web and publishing in a major online marine data portal. ## Tasks * Encoding of images, thumbnails and video streams * Optimization of web media content regarding file size and visual quality * Integration, configuration and customization of video stream players and image galleries on websites * Setup of cloud computing servers for media processing * Implementation of distributed encoding on multiple machines * Automatic metadata collection and preparation * Application design and technical documentation ## Details * Coding: Python, JS, HTML, CSS * Image codecs: JPEG, PNG, WEBP, etc. * Video codecs: H264, H265, VP9, etc. * Stream protocols: DASH, HLS, CMAF * Encoding technologies: CBR, CRF, capped CRF, etc. * Media encoding tools: FFmpeg, cwebp, ImageMagick * Metadata analysis: mediainfo, FFprobe, exiftool * Often used image quality metrics: PSNR, SSIM * Often used video quality metric: VMAF * JS Web-Player: Shaka Player * Repository: Gitlab * OS: Linux, Windows # Further Media Projects * Development of media related python libraries with pip * Contribution to the Image Fair Digital Objects (iFDO) standard and development of tools * Repair broken video files by reconstructing missing moov-atom in mov-container * Collect and analyze metadata of media files * Implementation of hotfolder encoding # Media Asset Management System * Project coordination * Lead administration * Technical support
○ Measuring and evaluating the video quality of video streaming services using full reference metrics ○ Implementation of a tool to download videos and live streams from a big video live streaming service ○ Detection of stalling in video streams
Development and evaluation of methods for the detection of banding artifacts in video data
○ Evaluation of a deep learning-based face detector ○ Writing a white paper regarding face identification ○ Implementation of a graphical user interface in Python for displaying measurements from audio and video analysis