{"id":5055,"date":"2024-06-11T18:07:12","date_gmt":"2024-06-11T09:07:12","guid":{"rendered":"https:\/\/blog.since2020.jp\/?p=5055"},"modified":"2024-06-11T18:07:12","modified_gmt":"2024-06-11T09:07:12","slug":"calculate_output_pixels","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/calculate_output_pixels\/","title":{"rendered":"\u753b\u50cf\u5206\u985e\u306b\u304a\u3051\u308b\u51fa\u529b\u30d4\u30af\u30bb\u30eb\u6570\u306e\u6c42\u3081\u65b9"},"content":{"rendered":"\n<p>\u4eca\u56de\u306f\u3001\u753b\u50cf\u5206\u985e\u306e\u969b\u306b\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u304f\u306e\u304b\u3092\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u4eca\u56de\u306f\u3001\u753b\u50cf\u5206\u985e\u306e\u969b\u306b\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u304f\u306e\u304b\u3092\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n<p>\u5b9f\u969b\u306bAI\u30e2\u30c7\u30eb\u3092\u69cb\u7bc9\u3057\u3066\u3001\u753b\u50cf\u5206\u985e\u3092\u3057\u3066\u3082\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u308b\u306e\u304b\u304c\u5206\u304b\u308a\u306b\u304f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3053\u306e\u30d6\u30ed\u30b0\u306b\u3088\u3063\u3066\u3001\u5c64\u3054\u3068\u306b\u51fa\u529b\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u308b\u304b\u304c\u5206\u304b\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n<h2>\u30d4\u30af\u30bb\u30eb\u6570\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u51fa\u529b\u30d4\u30af\u30bb\u30eb\u6570 = \uff08\u5165\u529b\u30d4\u30af\u30bb\u30eb\u6570 + 2 \u00d7 padding &#8211; kernel_size\uff09\/ stride + 1<\/p>\r\n<p>\u3053\u306e\u5f0f\u3067\u30d4\u30af\u30bb\u30eb\u6570\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\r\n<p>\u51fa\u529b\u30d4\u30af\u30bb\u30eb\u6570\u304c\u5c11\u6570\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3089\u3001\u7279\u5225\u306a\u5834\u5408\u4ee5\u5916\u306f\u6574\u6570\u306b\u5207\u308a\u6368\u3066\u307e\u3057\u3087\u3046\u3002<\/p>\n\n<h2>\u5b9f\u8df5<\/h2>\n<p>\u307e\u305a\u5fc5\u8981\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u30fc\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\r\n<div class=\"hcb_wrap\">\r\n<pre class=\"prism line-numbers lang-python\" data-lang=\"Python\">import torch\r\nfrom torch import nn\r\nimport torch.functional as F<\/pre>\r\n<\/div>\r\n<p>\u6b21\u306b\u30e2\u30c7\u30eb\u3092\u69cb\u7bc9\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\r\n<p>\u4eca\u56de\u306f32\u30d4\u30af\u30bb\u30eb \u00d7 32\u30d4\u30af\u30bb\u30eb\u306eRGB\u306e\u753b\u50cf\u3092\u5165\u529b\u753b\u50cf\u3068\u3057\u307e\u3059\u3002<\/p>\r\n<div class=\"hcb_wrap\">\r\n<pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>class Net(nn.Module):\r\n  def __init__(self):\r\n    super(Net,self).__init__()\r\n    self.conv1 = nn.Conv2d(3,32,padding = 1,kernel_size = 5,stride = 1)\r\n    self.conv2 = nn.Conv2d(32,64,padding = 1,kernel_size = 5,stride = 1)\r\n    self.pool = nn.MaxPool2d(2,2)\r\n    self.relu = nn.ReLU()\r\n\r\n  def forward(self,x):\r\n    x = self.pool(self.relu(self.conv1(x)))\r\n    x = self.pool(self.relu(self.conv2(x)))  \r\n    return x<\/code><\/pre>\r\n<\/div>\r\n<p>\u4e0a\u8a18\u306e\u30e2\u30c7\u30eb\u306e\u51fa\u529b\u30b5\u30a4\u30ba\u3092\u8a08\u7b97\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\r\n<div class=\"hcb_wrap\">\r\n<pre class=\"prism line-numbers lang-python\" data-lang=\"Python\"><code>def output_size(input_size,padding,kernel_size,stride):\r\n  return (input_size + 2 * padding - kernel_size) \/ stride + 1<\/code><\/pre>\r\n<\/div>\r\n<p>\u5b9f\u884c\u7d50\u679c\u3088\u308a\u3001\u6700\u7d42\u7684\u306a\u30d4\u30af\u30bb\u30eb\u6570\u306f6\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u4eca\u56de\u306f\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3059\u308b\u304b\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\r\n<p>\u753b\u50cf\u5206\u985e\u3092\u3059\u308b\u969b\u306b\u51fa\u529b\u30d4\u30af\u30bb\u30eb\u6570\u3092\u6c42\u3081\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3001\u305d\u306e\u969b\u306b\u3053\u306e\u8a18\u4e8b\u3092\u601d\u3044\u51fa\u3057\u3066\u3082\u3089\u3048\u308c\u3070\u5f79\u306b\u7acb\u3064\u3068\u601d\u3044\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306f\u3001\u753b\u50cf\u5206\u985e\u306e\u969b\u306b\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u304f\u306e\u304b\u3092\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002 \u306f\u3058\u3081\u306b \u4eca\u56de\u306f\u3001\u753b\u50cf\u5206\u985e\u306e\u969b\u306b\u30d4\u30af\u30bb\u30eb\u6570\u304c\u3069\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u304f\u306e\u304b\u3092\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002 \u5b9f\u969b\u306bAI\u30e2\u30c7\u30eb\u3092\u69cb\u7bc9\u3057\u3066\u3001\u753b\u50cf\u5206\u985e\u3092\u3057\u3066\u3082\u30d4 [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":4639,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","swell_btn_cv_data":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[1249],"tags":[96,331,630,419],"class_list":["post-5055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-ai","tag-python","tag-pytorch","tag-419"],"_links":{"self":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/5055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/comments?post=5055"}],"version-history":[{"count":0,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/5055\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media\/4639"}],"wp:attachment":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media?parent=5055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/categories?post=5055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/tags?post=5055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}