Merge pull request #3002 from littletomatodonkey/dyg/add_distillation

add distillation

tools/eval.py

@@ -49,7 +49,7 @@ def main():
     model = build_model(config['Architecture'])
     use_srn = config['Architecture']['algorithm'] == "SRN"
 
-    best_model_dict = init_model(config, model, logger)
+    best_model_dict = init_model(config, model)
     if len(best_model_dict):
         logger.info('metric in ckpt ***************')
         for k, v in best_model_dict.items():

tools/export_model.py

@@ -17,7 +17,7 @@ import sys
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
-sys.path.append(os.path.abspath(os.path.join(__dir__, '..')))
+sys.path.append(os.path.abspath(os.path.join(__dir__, "..")))
 
 import argparse
 
@@ -31,32 +31,12 @@ from ppocr.utils.logging import get_logger
 from tools.program import load_config, merge_config, ArgsParser
 
 
-def main():
-    FLAGS = ArgsParser().parse_args()
-    config = load_config(FLAGS.config)
-    merge_config(FLAGS.opt)
-    logger = get_logger()
-    # build post process
-
-    post_process_class = build_post_process(config['PostProcess'],
-                                            config['Global'])
-
-    # build model
-    # for rec algorithm
-    if hasattr(post_process_class, 'character'):
-        char_num = len(getattr(post_process_class, 'character'))
-        config['Architecture']["Head"]['out_channels'] = char_num
-    model = build_model(config['Architecture'])
-    init_model(config, model, logger)
-    model.eval()
-
-    save_path = '{}/inference'.format(config['Global']['save_inference_dir'])
-
-    if config['Architecture']['algorithm'] == "SRN":
-        max_text_length = config['Architecture']['Head']['max_text_length']
+def export_single_model(model, arch_config, save_path, logger):
+    if arch_config["algorithm"] == "SRN":
+        max_text_length = arch_config["Head"]["max_text_length"]
         other_shape = [
             paddle.static.InputSpec(
-                shape=[None, 1, 64, 256], dtype='float32'), [
+                shape=[None, 1, 64, 256], dtype="float32"), [
                     paddle.static.InputSpec(
                         shape=[None, 256, 1],
                         dtype="int64"), paddle.static.InputSpec(
@@ -71,24 +51,66 @@ def main():
         model = to_static(model, input_spec=other_shape)
     else:
         infer_shape = [3, -1, -1]
-        if config['Architecture']['model_type'] == "rec":
+        if arch_config["model_type"] == "rec":
             infer_shape = [3, 32, -1]  # for rec model, H must be 32
-            if 'Transform' in config['Architecture'] and config['Architecture'][
-                    'Transform'] is not None and config['Architecture'][
-                        'Transform']['name'] == 'TPS':
+            if "Transform" in arch_config and arch_config[
+                    "Transform"] is not None and arch_config["Transform"][
+                        "name"] == "TPS":
                 logger.info(
-                    'When there is tps in the network, variable length input is not supported, and the input size needs to be the same as during training'
+                    "When there is tps in the network, variable length input is not supported, and the input size needs to be the same as during training"
                 )
                 infer_shape[-1] = 100
+
         model = to_static(
             model,
             input_spec=[
                 paddle.static.InputSpec(
-                    shape=[None] + infer_shape, dtype='float32')
+                    shape=[None] + infer_shape, dtype="float32")
             ])
 
     paddle.jit.save(model, save_path)
-    logger.info('inference model is saved to {}'.format(save_path))
+    logger.info("inference model is saved to {}".format(save_path))
+    return
+
+
+def main():
+    FLAGS = ArgsParser().parse_args()
+    config = load_config(FLAGS.config)
+    merge_config(FLAGS.opt)
+    logger = get_logger()
+    # build post process
+
+    post_process_class = build_post_process(config["PostProcess"],
+                                            config["Global"])
+
+    # build model
+    # for rec algorithm
+    if hasattr(post_process_class, "character"):
+        char_num = len(getattr(post_process_class, "character"))
+        if config["Architecture"]["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config["Architecture"]["Models"]:
+                config["Architecture"]["Models"][key]["Head"][
+                    "out_channels"] = char_num
+        else:  # base rec model
+            config["Architecture"]["Head"]["out_channels"] = char_num
+    model = build_model(config["Architecture"])
+    init_model(config, model)
+    model.eval()
+
+    save_path = config["Global"]["save_inference_dir"]
+
+    arch_config = config["Architecture"]
+
+    if arch_config["algorithm"] in ["Distillation", ]:  # distillation model
+        archs = list(arch_config["Models"].values())
+        for idx, name in enumerate(model.model_name_list):
+            sub_model_save_path = os.path.join(save_path, name, "inference")
+            export_single_model(model.model_list[idx], archs[idx],
+                                sub_model_save_path, logger)
+    else:
+        save_path = os.path.join(save_path, "inference")
+        export_single_model(model, arch_config, save_path, logger)
 
 
 if __name__ == "__main__":

tools/infer_cls.py

@@ -47,7 +47,7 @@ def main():
     # build model
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # create data ops
     transforms = []

tools/infer_det.py

@@ -61,7 +61,7 @@ def main():
     # build model
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # build post process
     post_process_class = build_post_process(config['PostProcess'])

tools/infer_e2e.py

@@ -68,7 +68,7 @@ def main():
     # build model
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # build post process
     post_process_class = build_post_process(config['PostProcess'],

tools/infer_rec.py

@@ -20,6 +20,7 @@ import numpy as np
 
 import os
 import sys
+import json
 
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
@@ -46,12 +47,18 @@ def main():
 
     # build model
     if hasattr(post_process_class, 'character'):
-        config['Architecture']["Head"]['out_channels'] = len(
-            getattr(post_process_class, 'character'))
+        char_num = len(getattr(post_process_class, 'character'))
+        if config['Architecture']["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config['Architecture']["Models"]:
+                config['Architecture']["Models"][key]["Head"][
+                    'out_channels'] = char_num
+        else:  # base rec model
+            config['Architecture']["Head"]['out_channels'] = char_num
 
     model = build_model(config['Architecture'])
 
-    init_model(config, model, logger)
+    init_model(config, model)
 
     # create data ops
     transforms = []
@@ -107,11 +114,23 @@ def main():
             else:
                 preds = model(images)
             post_result = post_process_class(preds)
-            for rec_reuslt in post_result:
-                logger.info('\t result: {}'.format(rec_reuslt))
-                if len(rec_reuslt) >= 2:
-                    fout.write(file + "\t" + rec_reuslt[0] + "\t" + str(
-                        rec_reuslt[1]) + "\n")
+            info = None
+            if isinstance(post_result, dict):
+                rec_info = dict()
+                for key in post_result:
+                    if len(post_result[key][0]) >= 2:
+                        rec_info[key] = {
+                            "label": post_result[key][0][0],
+                            "score": post_result[key][0][1],
+                        }
+                info = json.dumps(rec_info)
+            else:
+                if len(post_result[0]) >= 2:
+                    info = post_result[0][0] + "\t" + str(post_result[0][1])
+
+            if info is not None:
+                logger.info("\t result: {}".format(info))
+                fout.write(file + "\t" + info)
     logger.info("success!")
 
 

tools/program.py

@@ -386,7 +386,7 @@ def preprocess(is_train=False):
     alg = config['Architecture']['algorithm']
     assert alg in [
         'EAST', 'DB', 'SAST', 'Rosetta', 'CRNN', 'STARNet', 'RARE', 'SRN',
-        'CLS', 'PGNet'
+        'CLS', 'PGNet', 'Distillation'
     ]
 
     device = 'gpu:{}'.format(dist.ParallelEnv().dev_id) if use_gpu else 'cpu'

tools/train.py

@@ -72,7 +72,14 @@ def main(config, device, logger, vdl_writer):
     # for rec algorithm
     if hasattr(post_process_class, 'character'):
         char_num = len(getattr(post_process_class, 'character'))
-        config['Architecture']["Head"]['out_channels'] = char_num
+        if config['Architecture']["algorithm"] in ["Distillation",
+                                                   ]:  # distillation model
+            for key in config['Architecture']["Models"]:
+                config['Architecture']["Models"][key]["Head"][
+                    'out_channels'] = char_num
+        else:  # base rec model
+            config['Architecture']["Head"]['out_channels'] = char_num
+
     model = build_model(config['Architecture'])
     if config['Global']['distributed']:
         model = paddle.DataParallel(model)
@@ -90,7 +97,7 @@ def main(config, device, logger, vdl_writer):
     # build metric
     eval_class = build_metric(config['Metric'])
     # load pretrain model
-    pre_best_model_dict = init_model(config, model, logger, optimizer)
+    pre_best_model_dict = init_model(config, model, optimizer)
 
     logger.info('train dataloader has {} iters'.format(len(train_dataloader)))
     if valid_dataloader is not None: