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35周年 PCGS邀各路大咖“品鉴真藏”
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作者 丁晨 《中国收藏》 2021年第11期142-145,共4页
精心打造的舞台上,左右两侧的圆形大屏正好契合了钱币的形状;绚丽的蓝色灯光,令人仿佛置身于汪洋大海,探索博大精深的钱币奥妙……10月18日,在曾荣膺2000年"世界最高酒店"的上海金茂君悦大酒店,PCGS"品鉴真藏之悦"3... 精心打造的舞台上,左右两侧的圆形大屏正好契合了钱币的形状;绚丽的蓝色灯光,令人仿佛置身于汪洋大海,探索博大精深的钱币奥妙……10月18日,在曾荣膺2000年"世界最高酒店"的上海金茂君悦大酒店,PCGS"品鉴真藏之悦"35周年庆典在此盛大举行。上百位来自全国钱币界的专家、学者、藏家等齐聚一堂,其中包括美国驻上海总领事馆商务处商务领事、上海造币有限公司、上海美国商会代表等。 展开更多
关键词 美国商会 鉴真 总领事馆 钱币 PCG
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赫芬顿邮报的衰落原因探究——内容生产模式分众化与专业化的矛盾
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作者 洪成 李西铨 《青年记者》 北大核心 2021年第3期105-106,共2页
赫芬顿邮报提高用户准入门槛,并对名人博主、专业博主实行流量倾斜政策,致使普通博主被边缘化。既丢失了用户市场,失去了社会化媒体属性,又无法保证优质专业新闻内容的产出,陷入了困境。
关键词 赫芬顿邮报 分众化 专业化 平台建设
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Temporally consistent video colorization with deep feature propagation and self-regularization learning 被引量:1
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作者 Yihao Liu Hengyuan Zhao +4 位作者 Kelvin CKChan Xintao Wang Chen Change Loy Yu Qiao Chao Dong 《Computational Visual Media》 SCIE EI CSCD 2024年第2期375-395,共21页
Video colorization is a challenging and highly ill-posed problem.Although recent years have witnessed remarkable progress in single image colorization,there is relatively less research effort on video colorization,and... Video colorization is a challenging and highly ill-posed problem.Although recent years have witnessed remarkable progress in single image colorization,there is relatively less research effort on video colorization,and existing methods always suffer from severe flickering artifacts(temporal inconsistency)or unsatisfactory colorization.We address this problem from a new perspective,by jointly considering colorization and temporal consistency in a unified framework.Specifically,we propose a novel temporally consistent video colorization(TCVC)framework.TCVC effectively propagates frame-level deep features in a bidirectional way to enhance the temporal consistency of colorization.Furthermore,TCVC introduces a self-regularization learning(SRL)scheme to minimize the differences in predictions obtained using different time steps.SRL does not require any ground-truth color videos for training and can further improve temporal consistency.Experiments demonstrate that our method can not only provide visually pleasing colorized video,but also with clearly better temporal consistency than state-of-the-art methods.A video demo is provided at https://www.youtube.com/watch?v=c7dczMs-olE,while code is available at https://github.com/lyh-18/TCVC-Tem porally-Consistent-Video-Colorization. 展开更多
关键词 video colorization temporal consistency feature propagation self-regularization
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