采样 https://imgtec.eetrend.com/tags/6180/0 zh-hans 简单图像空间重要性采样的GPU实现 https://imgtec.eetrend.com/blog/2020/100049776.html <!-- THEME DEBUG --> <!-- CALL: theme('field') --> <!-- FILE NAME SUGGESTIONS: * field--field-main-image--blog.tpl.php * field--blog.tpl.php * field--field-main-image.tpl.php * field--image.tpl.php x field.tpl.php --> <!-- BEGIN OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- This file is not used by Drupal core, which uses theme functions instead. See http://api.drupal.org/api/function/theme_field/7 for details. After copying this file to your theme's folder and customizing it, remove this HTML comment. --> <div class="field field-name-field-main-image field-type-image field-label-hidden"> <div class="field-items"> <div class="field-item even"><img class="img-responsive" src="https://cdn.eetrend.com/files/styles/picture400/public/2020-06/%E5%8D%9A%E5%AE%A2/100049776-99325-beaded-pp.jpg?itok=lCdmGEEc" width="400" height="220" alt="" /></div> </div> </div> <!-- END OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- THEME DEBUG --> <!-- CALL: theme('field') --> <!-- FILE NAME SUGGESTIONS: * field--body--blog.tpl.php * field--blog.tpl.php * field--body.tpl.php * field--text-with-summary.tpl.php x field.tpl.php --> <!-- BEGIN OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- This file is not used by Drupal core, which uses theme functions instead. See http://api.drupal.org/api/function/theme_field/7 for details. After copying this file to your theme's folder and customizing it, remove this HTML comment. --> <div class="field field-name-body field-type-text-with-summary field-label-hidden"> <div class="field-items"> <div class="field-item even"><p>渲染中常常要对一张图像进行采样,也就是在众多像素中选一些代表性的点。随机的均匀采样是最简单的,像下面左图那样。但是很多时候我们希望进行一些非均匀的采样,比如在环境光图像里集中采样亮度大的地方,如右图。这种采样叫做重要性采样(Importance Sampling)。</p> <p></p></div> </div> </div> <!-- END OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> Thu, 04 Jun 2020 05:46:39 +0000 demi 100049776 at https://imgtec.eetrend.com 上采样,反卷积,上池化概念区别 https://imgtec.eetrend.com/blog/2019/100045215.html <!-- THEME DEBUG --> <!-- CALL: theme('field') --> <!-- FILE NAME SUGGESTIONS: * field--field-main-image--blog.tpl.php * field--blog.tpl.php * field--field-main-image.tpl.php * field--image.tpl.php x field.tpl.php --> <!-- BEGIN OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- This file is not used by Drupal core, which uses theme functions instead. See http://api.drupal.org/api/function/theme_field/7 for details. After copying this file to your theme's folder and customizing it, remove this HTML comment. --> <div class="field field-name-field-main-image field-type-image field-label-hidden"> <div class="field-items"> <div class="field-item even"><img class="img-responsive" src="https://cdn.eetrend.com/files/styles/picture400/public/2019-09/%E5%8D%9A%E5%AE%A2/100045215-80687-nature-0.jpg?itok=921x3rwu" width="400" height="220" alt="" /></div> </div> </div> <!-- END OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- THEME DEBUG --> <!-- CALL: theme('field') --> <!-- FILE NAME SUGGESTIONS: * field--body--blog.tpl.php * field--blog.tpl.php * field--body.tpl.php * field--text-with-summary.tpl.php x field.tpl.php --> <!-- BEGIN OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- This file is not used by Drupal core, which uses theme functions instead. See http://api.drupal.org/api/function/theme_field/7 for details. After copying this file to your theme's folder and customizing it, remove this HTML comment. --> <div class="field field-name-body field-type-text-with-summary field-label-hidden"> <div class="field-items"> <div class="field-item even"><p>通过卷积和池化等技术可以将图像进行降维,因此,一些研究人员也想办法恢复原分辨率大小的图像,特别是在语义分割领域应用很成熟。通过对一些资料的学习,简单的整理下三种恢复方法,并进行对比。</p> </div> </div> </div> <!-- END OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> Wed, 18 Sep 2019 03:42:01 +0000 demi 100045215 at https://imgtec.eetrend.com 关于常见的Sampling方式 https://imgtec.eetrend.com/blog/2019/100043607.html <!-- THEME DEBUG --> <!-- CALL: theme('field') --> <!-- FILE NAME SUGGESTIONS: * field--field-main-image--blog.tpl.php * field--blog.tpl.php * field--field-main-image.tpl.php * field--image.tpl.php x field.tpl.php --> <!-- BEGIN OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- This file is not used by Drupal core, which uses theme functions instead. See http://api.drupal.org/api/function/theme_field/7 for details. After copying this file to your theme's folder and customizing it, remove this HTML comment. --> <div class="field field-name-field-main-image field-type-image field-label-hidden"> <div class="field-items"> <div class="field-item even"><img class="img-responsive" src="https://cdn.eetrend.com/files/styles/picture400/public/2019-06/%E5%8D%9A%E5%AE%A2/100043607-71850-xie_zi_1.jpg?itok=Ie0hCAJ3" width="400" height="220" alt="" /></div> </div> </div> <!-- END OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- THEME DEBUG --> <!-- CALL: theme('field') --> <!-- FILE NAME SUGGESTIONS: * field--body--blog.tpl.php * field--blog.tpl.php * field--body.tpl.php * field--text-with-summary.tpl.php x field.tpl.php --> <!-- BEGIN OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> <!-- This file is not used by Drupal core, which uses theme functions instead. See http://api.drupal.org/api/function/theme_field/7 for details. After copying this file to your theme's folder and customizing it, remove this HTML comment. --> <div class="field field-name-body field-type-text-with-summary field-label-hidden"> <div class="field-items"> <div class="field-item even"><p>什么是Sampling,简单说就是每个“像素块”都是由无数个点来组成的,所以显示出来的颜色也应该是由无数个点来决定的,但是现实是不可能真的把所有的点的颜色算出来,所以只能取某一(或少数)点的颜色来作为代表,即Sampling(采样)。</p> </div> </div> </div> <!-- END OUTPUT from 'sites/all/themes/Imgtec/templates/field.tpl.php' --> Thu, 06 Jun 2019 09:57:03 +0000 demi 100043607 at https://imgtec.eetrend.com