Independently determining adjustments to bounding shapes for detected objects in image data

A method, comprising:

• obtaining, at an image labeling system, a bounding shape for an object detected in image data;
• independently determining, by the image labeling system, one or more adjustments to one or more edges of the bounding shape according to a multi-scale feature map generated from different resolutions of the image data that is provided as input to different dimension decoders to determine the one or more adjustments to the one or more edges of the bounding shape and generate respective confidence scores for the one or more adjustments to the bounding shape;
• and
• after determining that the respective confidence scores for the one or more adjustments to the one or more edges of the bounding shape satisfy a confidence threshold, providing, by the image labeling system, the one or more adjustments to the one or more edges of the bounding shape.

One or more non-transitory, computer-readable storage media, storing program instructions that when executed on or across one or more computing devices cause the one or more computing devices to implement:

• obtaining a bounding shape for an object detected in image data;
• independently determining one or more adjustments to one or more edges of the bounding shape according to a multi-scale feature map generated from different resolutions of the image data that is provided as input to different dimension decoders to determine the one or more adjustments to the bounding shape and generate respective confidence scores for the one or more adjustments to the bounding shape;
• and
• determining that respective confidence scores for the one or more adjustments to the one or more edges of the bounding shape satisfies a confidence threshold;
• and
• displaying the one or more adjustments to the one or more edges of the bounding shape after determining that the confidence scores for the one or more adjustments to the one or more edges of the bounding shape satisfy the confidence threshold.