How the search_area_factor and output_sz are calculated?

[OOHAN-zxy]

Thank you for your contribution to the MOT community. I have some questions about how to crop the current frame with a certain scale, may I ask how the size parameters search_area_factor and output_sz are calculated, but they are not clearly found in the code, looking forward to your reply!

[ret-1]

Hi @OOHAN-zxy ,

These parameters are set using this function:

MixSort/MixViT/lib/train/base_functions.py

Lines 11 to 24 in a078f5b

	def update_settings(settings, cfg):
	settings.print_interval = cfg.TRAIN.PRINT_INTERVAL
	settings.search_area_factor = {'template': cfg.DATA.TEMPLATE.FACTOR,
	'search': cfg.DATA.SEARCH.FACTOR}
	settings.output_sz = {'template': cfg.DATA.TEMPLATE.SIZE,
	'search': cfg.DATA.SEARCH.SIZE}
	settings.center_jitter_factor = {'template': cfg.DATA.TEMPLATE.CENTER_JITTER,
	'search': cfg.DATA.SEARCH.CENTER_JITTER}
	settings.scale_jitter_factor = {'template': cfg.DATA.TEMPLATE.SCALE_JITTER,
	'search': cfg.DATA.SEARCH.SCALE_JITTER}
	settings.grad_clip_norm = cfg.TRAIN.GRAD_CLIP_NORM
	settings.print_stats = None
	settings.batchsize = cfg.TRAIN.BATCH_SIZE
	settings.scheduler_type = cfg.TRAIN.SCHEDULER.TYPE

and the cfg is loaded from MixViT/experiments/mixformer_deit/track.yaml