Segmentation mask is string and can not be decoded by RLE.
Posted by: kapendragon @ June 9, 2021, 6:15 a.m.Sorry for the inconvenience. To load the segmentation annotations, please refer to the annToMask function in https://github.com/youtubevos/cocoapi/blob/master/PythonAPI/pycocotools/mask.py .
The segmentation annotations of OVIS are in compressed RLE format, which is different from the uncompressed RLE format in COCO or YTVIS. These segmentation annotations in OVIS can still be directly loaded by the annToMask function.