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cvpr/models/pyramid_model.py
T
2022-09-27 21:26:15 +00:00

71 lines
3.1 KiB
Python

import os
import time
import random
import tensorflow as tf
import numpy as np
# import plotly.graph_objects as go
# import plotly.express as ex
from custom_utils.custom_utils import load_model
from models.base import AEEncoder
from models.cvae_model import CVAE
from models.pyramid_level import PyramidLevel
class Pyramid(tf.keras.Model):
def __init__(self, config):
super(Pyramid, self).__init__()
self.static_enc : AEEncoder = AEEncoder(config['cond_ae']['latent_dim'], config['cond_ae']['encoder_depths'], config['cond_ae']['encoder_dims'], config['cond_ae']['bottleneck_size'], config['cond_ae']['kernel_size'])
if config['pyramid']['static_model'] != '':
load_model(self.static_enc, config['pyramid']['static_model'] + '_enc')
self.body_enc : AEEncoder = AEEncoder(config['cond_ae']['latent_dim'], config['cond_ae']['encoder_depths'], config['cond_ae']['encoder_dims'], config['cond_ae']['bottleneck_size'], config['cond_ae']['kernel_size'])
if config['pyramid']['body_model'] != '':
load_model(self.body_enc, config['pyramid']['body_model'] + '_enc')
self.curv_enc : AEEncoder = AEEncoder(config['cond_ae']['latent_dim'], config['cond_ae']['encoder_depths'], config['cond_ae']['encoder_dims'], config['cond_ae']['bottleneck_size'], config['cond_ae']['kernel_size'])
if config['pyramid']['curvature_model'] != '':
load_model(self.curv_enc, config['pyramid']['curvature_model'] + '_enc')
if config['pyramid']['freeze_encoders']:
self.static_enc.trainable = False
self.body_enc.trainable = False
self.curv_enc.trainable = False
self.cond_encoder = tf.keras.Sequential([tf.keras.layers.Dense(512, activation='relu'),
tf.keras.layers.Dense(256, activation='relu'),
tf.keras.layers.Dense(128, activation='relu'),
tf.keras.layers.Dense(config['pyramid']['latent_dim']),])
self.levels = [PyramidLevel({ **config['pyramid']['levels'][i], **{ 'cond_ae': config['cond_ae']} }) for i in range(len(config['pyramid']['levels']))]
def encode_conds(self, uv_template, uv_body_posed, uv_curv):
z_static = self.static_enc(uv_template)
z_body = self.body_enc(uv_body_posed)
z_curv = self.curv_enc(uv_curv)
z_cond = tf.concat([z_static, z_body, z_curv], axis=-1)
z_cond = self.cond_encoder(z_cond)
return z_cond
def call(self, inputs, training=None):
uv_static, uv_body, uv_curv = inputs[-1][1], inputs[-1][2], inputs[-1][3]
z_cond = self.encode_conds(uv_static, uv_body, uv_curv)
out_levels = []
pred, mean, logvar = self.levels[0](inputs[0], z_cond, training=training)
out_levels.append([pred, mean, logvar])
for i in range(1, len(self.levels)):
pred_level, mean, logvar = self.levels[i](inputs[i], z_cond, training=training)
pred = pred + pred_level
out_levels.append([pred, mean, logvar])
return out_levels