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目录 TOC
Al Bovik:“这就是Tom:他的存在让所有人变得更优秀”
Rama Chellappa:高尚的楷模
高 文:“他非常谦和低调,同时又睿智幽默”
龚怡宏:“他一生淡薄名利,始终平等对待每一个人”
Ramesh Jain:“他也独具一种天赋,能简明清晰地解释最艰深的科研难题”
梁志培:“不仅因为他的科研才华,更因为他是一位出色的长者”
马 毅:“黄老先生应该是我一生遇到过的不多的‘纯粹的学者’”
Nicu Sebe:黄煦涛教授与宫城大师
余 凯:“Tom的拳拳之心和君子之风总是我的榜样”
张亚勤:“最让我感动的是他的善良温和、伉俪情深和完美的家庭观”
张正友:“Tom对学生的爱护和关怀人人羡慕,可能没有一个导师能与之相比”
周少华:“他是经常满足别人心愿的,这也是他为人爱戴的原因”
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“这就是Tom:他的存在让所有人变得更优秀。”
Al Bovik@UT Austin
I became Tom’s student when he arrived at the University of Illinois 40 years ago. Dave Munson, who co-advised me, told me he was “a superstar of image processing,” but I had no idea of his amazing accomplishments. He had pioneered video compression, among the greatest advances of all of engineering. I took his first class at UIUC, and he was the coolest professor I’d ever seen. Tom was funny and relaxed, always with mug in hand, as he inspired us with new image processing ideas and results. In research, I appreciated his keen, inquisitive mind as he guided me onto new problem directions. I was the kind of grad student who would show up only every few months with reems of printouts and tons of questions. I’d give all my findings and confusion, he’d make a few spot-on comments that changed my thinking, and off I’d go, with enough to keep me busy for months more. He had his own ways of keeping me on target - once he called my apartment on a Saturday night, with a brilliant insight that redefined my MS thesis work. I’d been straying from research, self-questioning, and making little progress, but that call shocked and inspired me out of the indolence I’d been in - which he’d sensed. I never looked back after that; my own passion for knowledge was kindled by Tom’s.
当Tom四十年前刚来到伊利诺伊大学香槟分校时,我成为他在那里最早的学生之一。我的共同导师Dave Munson教授告诉我,Tom是图像处理界的超级巨星;但当时的我还不能充分理解他的成就究竟何等辉煌。他是视频压缩的先驱 ––– 这堪称所有工程类学科中曾取得过的最大进展之一。我选修了他在伊利诺伊大学开设的第一门课。他是我遇见过的所有教授中最酷的一个:总是手捧咖啡杯,于一片妙趣横生和轻松自如之中,将图像处理的旧闻新知娓娓道来。在科研中,他明锐而充满求知欲的思维总令我钦佩不已,引导我们探索新的方向。作为博士生,我时常连续几个月不露面,一出现就会带着厚厚的笔记和喋喋不休的问题。我向Tom陈述我所有的发现和困惑,他往往只点拨只言片语,就让我的思路峰回路转,带着新一拨的想法和计划满载而归。Tom还擅长一种独门技巧帮我专注目标:有次他周六晚上打电话到我的公寓,给我讲述了一个精彩绝伦、足以让我的硕士论文工作推倒重来的想法。那段时间我正无心工作,时常自问自答而毫无进展。他感受到了我的漫无目标,才用这个电话将我从无所事事中惊醒。此后我再不踌躇,一往无前,皆因他的电话重燃了我对知识的热情。
As we all got older, Tom’s international role as friend and mentor continued. Just as when we leave home we appreciate our parents more than before, Tom’s role in the lives of his students modified, as we’d look back to Tom for guidance and direction. I mean this broadly, since his “students” included nearly everyone he met. Tom didn’t self-promote, have excess ambition, or criticize; he was always humble, warm, approachable and constructive. So he became the mentor to many others beyond his own students, amongst them many leaders in our community, all deeply affected by Tom’s wisdom and kindness. I believe a significant reason for the amiable disposition of our image processing community has been the overarching and gentle presence of Thomas Huang.
岁月流逝,Tom在国际学术界作为良师益友的声望也与日俱增。就像我们总在离开家庭后才更为感恩父母,Tom对他的学生们的指引意义,也随着这些学生们日后的生涯而历久弥新。我对Tom“学生”的定义十分广阔,因为他几乎影响了他见过的每个人。Tom一生从未自吹自擂,从未好高骛远,从未责难他人;他永远谦逊温和,亲切友善,只会提出建设性意见。所以他不仅教育了自己的学生,还成为了更多人的事实导师;这些人中很多后来都成为了本领域的领袖人物,他们无不深切感念Tom的善良和睿智。如今,整个图像处理领域的风气倾向于亲和友善,我相信重要原因之一便是Tom的绅士风范,影响无远弗届。
Tom was always present and available, inevitably with his wife Margaret by his side. They were inseparable, and Margaret was an important part of Tom’s presence and strength. He was the quiet center point of every meeting and conference. When I had graduate students with me, I would have them meet their academic Grandfather, and many in the few days since his passing have expressed their recollections of meeting Tom and Margaret to me, and of feeling part of Tom’s immense legacy. I am sure this is true of hundreds of Tom’s “grand-kids” – and “great grandkids.” Throughout my career, Tom was always there, from guiding me to join UT-Austin, to helping to guide my early research work from afar, to later in life, when he was a fan of the things my students and I had done. On my 50th birthday, he wrote to me: “You have had an amazing career in your first 50 years; and I am confident that you will better yourself in the next 50 years and beyond. I am so proud of you.” I can tell you, no son could feel more rewarded than when I read those words. That was Tom, and I think many have had similar experiences. He made everyone better, and it is very hard to realize that he has gone. But along with sadness, I feel a great happiness at having been a student of Tom’s, and knowing that such a man could have existed and touched my own life, and those of many others, so profoundly. His is very much a life to celebrate, even as we sorrow.
Tom和他的夫人Margaret永远相携相伴,密不可分:Margaret是Tom的生活和信念来源中的重要一部分。在Tom参加的所有会议和学术讨论中,他永远是那个“安静的核心”。当我有了自己的学生后,我会找机会让他们也见见自己的师祖。我的很多学生,在Tom去世后的几天,都向我表达了他们对Tom夫妇的回忆,和对Tom巨大学术遗泽的感怀。我相信Tom成千上百的一代代学术后人,此刻皆同此心。在我的生涯中,Tom一直都在:从帮助我拿到德州大学奥斯汀分校的教职;到遥遥指点我早期的独立科研;再到此后,他始终为我和我的学生取得的成就而衷心喜悦。在我五十岁生日时,他给我写信道:“你人生的前五十年成就已经十分出色;我坚信你在下一个人生五十年中将更上一层楼。我为你倍感骄傲。”作为弟子,再也没有比能读到老师这样勉励自己的话更有成就感了。如同许多人的类似经历一样,这就是Tom:他的存在让所有人变得更优秀。因此,我很难接受他已经永远离开了我们。但在无尽悲伤之余,想到我曾有幸成为他的学生,想到这样一个伟大的人曾经广泛影响过包括我在内许多人的生命,我又不禁欣喜。他的一生是圆满而值得赞美的,即使我们为失去他而悲伤。
Professor Thomas Huang:A Noble Role Model
黄煦涛教授:高尚的楷模
Rama Chellappa@UMD
It is with deep sadness that I am writing this piece. My wife Vishnu Priya joins me in expressing our heartfelt condolences to Tom's family. The fact this happened within months of passing of Margaret adds more sorrow and sadness. But Tom and Margaret were inseparable in life. We all worried that Tom may have been devastated by Margaret's passing. I came to know that Tom spent his final months among family members in Indiana.
在写这段文字时,我感到无比悲伤。我携妻Vishnu Priya一起向Tom的家人表示衷心的慰问。在Margaret逝世后的几个月内就发生了此事平添了更多的悲伤;但是Tom和Margaret在生活中本是密不可分的。我们都担忧,Tom可能会因Margaret的逝世而心碎。据我所知,Tom是在印第安纳州和家人度过了最后的几个月。
As a student at Purdue, I attended Tom's lectures on image processing in Spring 1978. He had just returned from a sabbatical in Germany. Tom walked into the class with a coffee mug and a small piece of paper and delivered his lectures. All the students were awestruck by how simply he explained the mathematical results in image processing. I have had the pleasure of interacting with Tom since I graduated in 1981. I was greatly inspired by his many contributions, especially on motion estimation from image sequences. I was able to build on his pioneering work, which he supported very much.
作为普渡大学的一名学生,我1978年春季上了Tom的图像处理课,其时他刚从德国放假回来。犹记得,Tom拿着一杯咖啡和一小张纸走进教室,简单明晰地讲解了图像处理中的数学原理,所有学生都为之震惊。自从1981年毕业以来,我一直有幸与Tom有互动。他的许多开拓性贡献给我极大的启发,尤其是在图像序列的运动估计方面。我也继续沿着运动估计这个方向做了些工作,对此他表示了十足的支持。
I saw Tom and Margaret at many computer vision and image processing conferences and shared many breakfasts and dinners. I still recall how Tom would get up and serve soup for everyone at the table. He put us all to shame by attending all the lectures at various sessions in conferences and taking copious notes.
我在许多计算机视觉和图像处理会议上看到Tom和Margaret,并一起共同进餐,我仍然记得汤姆起身为每个人舀汤的情景。他倾听会议上的所有讲座并做巨量笔记,这让吾辈感到汗颜。
We had great times together at a conference I arranged in Bangalore, India in Jan. 1988. Tom as usual gave a fantastic lecture and I had the pleasure of taking Tom and Margaret on a day of sight seeing to Mysore, India.
1988年1月,在印度班加罗尔,我安排了一次研讨会。会间我们一起度过了一段美好时光。Tom像往常一样进行了精彩的演讲;我也很高兴陪同Tom和Margaret 游览了迈索尔。
In addition to being an outstanding and influential scientist, researcher and a scholar, Tom was a great human being. He treated everyone with respect and promoted the careers of everyone in the field. He must have written zillions of letters for tenure, promotion and various awards for his colleagues, young and old. I know his students adored him.
除了是一位杰出而有影响力的科学家、研究人员和学者,Tom还是一位了不起的人。他以尊重的态度对待每个人,并促进每个人在领域中的职业发展,他一定为成千上万新老同事的任职、晋升、评奖等写了成千上万封推荐信。我知道,他的学生都崇拜他。
Tom was my role model.
汤姆是我的榜样。
The fields of signal processing, image processing, computer vision and pattern recognition are greatly benefited by Tom's intuition, innovation and intellect.
Tom的直觉、创新、智慧极大地恩惠了信号处理、图像处理、计算机视觉和模式识别等领域。
All of us who have interacted with Tom feel the loss very deeply.
所有与Tom有过互动的人无不深痛地感受到损失。
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“我最佩服他的,是他的亲和力和做事认真的态度。他非常谦和低调,同时又睿智幽默。”
高文、张青@北大
2020年4月29日于深圳
2020年4月25日,计算机视觉一代宗师黄煦涛院士驾鹤西去,距离他夫人Margaret去世不足百日,用行动诠释了他们夫妇之间人生挚爱的一贯境界。黄煦涛夫妇(Tom & Margaret),是我们的人生导师,也是我们的挚友。Tom对我的研究工作和学术生涯非常关心,Margaret对我夫人张青的关心更是远远超出了朋友,犹如长辈对子女或者姐姐对妹妹一般。他们的相继离开,不仅是计算机视觉界的损失,是对Tom学术大家庭的重大冲击,也让我们夫妇内心极大伤悲。我们失去了此生最为投缘最为知己的一对神仙眷侣,从此以后我们心里那块唯一属于他们的空间再也无法更新,只剩下了回忆。
我第一次知道Tom的名字是在1986年,当时我在日本东京大学学习,我的导师斋藤正男教授交给我一个课题,研究医学图像的编码,目标是实现无胶片化医学诊断。我去图书馆查找资料,查到1969年的PCS(图片编码会议)论文集,从而知道Tom从1966年就开始研究电视图像和视频的编码压缩问题,考虑使用变换作为数学工具以提高编码效率,当时他使用傅里叶变换。在上个世纪六十年代模拟电视还没有大流行的时候,他就在考虑数字视频的编码传输问题,可见他的科研洞察力有多么超前。正是在他的思想启发下,我选择了只有实数域的正交变换 --- 离散余弦变换DCT作为工具,完成的第一个工作是图像DCT变换后系数矩阵的自适应量化,提出的算法是根据系数矩阵的统计归纳出几种能量分布模式,利用能量损失最小化原则确定量化模式。我后来在视频编码领域研究方向上一直有很好的直觉,和这个起始工作密切相关。
我第一次见到Tom本人应该是在北京一个学术交流会上,在2001年前后,他访问微软亚洲研究院的时候。我和张青一起见到Tom和Margaret,记得是亚勤在北京中关村组织的一次家庭聚会上,亚勤夫妇、Harry夫妇,宏江夫妇等等都在。当时男士们一桌,女士们一桌,不像其他几位夫人和Margaret都已经很熟了,张青第一次见Margaret,有点插不上话。见此情景,Tom非常绅士,特意从男士桌过去把张青介绍给Margaret,转变了局面,开启了一段跨越十年的忘年交情。自此以后,Margaret和张青关系越来越近,他们每年都会一起活动不止一次,每次几天时间。Tom和我,也乐得利用这个机会放松一下,讨论一些问题,共享美食。从2003年至2012年,我们一起在世界各地学术访问,一起过圣诞节。我们一起活动的足迹,包括不少大陆城市,以及香港、台湾、洛杉矶等等,当然停留最多的还是香港,因为这十年中绝大多数圣诞节都是在香港过的。
2011年秋天,我当选中国工程院院士。是年圣诞节,我们在香港,除了好好庆祝了一番,还畅想了未来几年的访问计划,包括访问Margaret的亲属,以及Margaret小时候曾经在中国居住过的地方。2012年圣诞期间,我们按计划去洛杉矶和拉斯维加斯,见过Margaret的母亲和弟弟。当时Margaret母亲已经将近100岁,几乎没有自我行动能力,但是精神状态很好,共进午餐时食欲不错。她讲话除了Margaret我们都听不懂,所以我们几个只有Margaret可以和她互动。离开后Margaret告诉我们,他母亲年轻的时候国语和英文都很好,但是上了年纪以后慢慢开始说混杂的方言,主要是云南方言。因为抗日战争期间Margaret他们全家为了躲避战火逃到那里生活了一段时间,也许是那一段生活非常刻骨铭心,以至于晚年记忆包括语言都是以那里为主。在洛杉矶分手之前,我们约定下一年的圣诞前后,或者其他时间尽快安排一次云南访问,看看Margaret小时候呆过的地方。不曾想到,2013年Tom患病,我们的计划没能成行,当年也没有一起过圣诞。2014年,在计划反复调整了几次之后,我们还是在香港相聚,最后一次一起过了圣诞。当时Margaret和 Tom的状态都不好,Margaret还更差一些。即使这样,在一起的几天里我们还是继续畅想,希望等他们病好以后继续我们的计划。没想到这竟成了永远无法实现的愿望,是我们深深的遗憾。
Margaret有着超常的记忆力。张青和她说过的事情,她都会记得清清楚楚,哪怕过了几年。当我们在一起聊天的时候,Margaret经常会问一些我们父母、孩子,以及我们兄弟姐妹的情况,很多细节、关系、变化她都记得,包括生日和电话号码,完全就像一家人。当我们一起在香港或者其他城市旧地重游的时候,Margaret能够准确地说出上次是什么时间来过,来过几次,去过哪家商店,买过什么东西,准确的像电脑,每次我都觉得非常不可思议。
Tom在学术方面的洞察力和成就,不用我多说。我最佩服他的,是他的亲和力和做事认真的态度。他非常谦和低调,同时又睿智幽默。我们每次活动从不同地方飞过去,第一天见面时,他都会一起讨论商定后面几天的计划。大多数时候Tom都会把计划写在一张提前准备的小纸上,一旦确定后面几天就严格按照计划行动。当然,白天除了讲学或者开会Tom和我是主角之外,大多数的安排我们都是尊重Margaret和张青的意见,因为绝大多数时候Margaret和张青的意见高度一致,所以达成共识不难。吃饭选择的任务主要是Tom和我的,而我们俩的选择也是高度一致,所以讨论行动计划通常是件很容易的事情。
我们和Tom & Margaret一起度过了非常愉快的十几年,见证了他们夫妇的至亲至爱和相敬如宾,见证了他们的桃李满天和众星捧月,见证了他们长途跋涉旅途劳累的辛苦和见到好朋友访问心怡之地的欢喜。我们多么希望此情此景可以再持续十年、二十年,可惜老天不遂我们所愿。Tom追随Margaret去了,去天堂继续他们的恩爱、继续他们的旅程。我们留下的,还要继续沿着他们给我们指的路,给我们做的表率,继续我们的人生旅程。我们都应该在各自的领域做出成绩,回报家庭,造福社会与人类,告慰他们的在天之灵。
永远怀念黄煦涛院士夫妇!
2008年圣诞,摄于香港
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“他一生淡薄名利,始终平等对待每一个人,让每个人都深深感受到他的诚恳与温暖。”
龚怡宏@西交大
圣人驾鹤西去,对于我与很多华人学者来说,犹如失去身边最敬爱的长辈,激起了极大的悲痛及无尽的追思。Tom是CV界的泰斗,被大家称为计算机视觉之父,但一生儒雅谦卑,和蔼可亲。最为难能可贵的是,他一生淡薄名利,始终平等对待每一个人,让每个人都深深感受到他的诚恳与温暖。我在NEC美国研究院硅谷分院任职期间,于2006年秋季向Tom提出了去UIUC拜访他的请求,Tom欣然答应,并邀请我做一个学术报告。我当时以为只是给Tom的学生做报告,抱着轻松的心情走进了报告厅。一进门,场面使我感到震撼,报告厅里座无虚席,Tom不仅请来了自己和系里其他老师的学生,更请来了不少CV界的知名学者与教授。这个盛大场面深深地打动了我,我以极大的激情做完了学术报告,并当场展示了我们团队研发的世界上首个基于卷积神经网络(CNN)的人物性别年龄识别系统。系统演示把会场气氛带入高潮,许多人排成长队缓慢经过视像头前,期望亲身测试演示系统的性别年龄识别精度。让我印象深刻的是,不少女同学即对系统的识别能力非常好奇,又害怕别人知道她的真实年龄,一直在那里犹豫是否要参加测试。
报告会的当晚,Tom和Margaret请我共进晚餐。与Tom的团队建立正式的合作关系,是一直埋藏在我心中的一个梦想,但我又担心Tom会像学术界其他大咖一样要价过高,超出我们的承受能力。我诚惶诚恐地,委婉地向Tom提出了合作费用的问题,没想到Tom竟然报出了一个和进入学术界不久的助理教授差不多的数字。在我面前的这位长者,是CV界的泰斗,是人们膜拜的偶像,却如此的平易近人,诚恳和谦卑,让我感到由衷的感动、敬佩和震撼。回公司后不久,我们很快签署了合作协议,在此后的数年里,Tom向我们源源不断地输送了一大批优秀博士研究生,包括杨建朝、周熙等佼佼者。与Tom的合作硕果累累,于CVPR 2009, CVPR 2010发表的稀疏编码(sparse coding)图像特征表达方法,2009-2011年间在PASCAL VOC, TRECVID, ImageNet等多个图像与视频内容解析国际大赛中所取得的冠军等成果都是与Tom团队密切合作的产物。
我最后一次与Tom见面,是在2018年11月2日,那时他住进了一个普通的养老院,服务水平一般,提供的餐饮选择很少,品味较差。这一切都让我极为震惊。一个桃李遍天下、在CV界如此受人崇拜和敬仰的伟人,却从不愿给子女和身边的人添麻烦,选择与夫人一起住进一个普普通通的养老院,默默无闻地度过人生的最后时光。他让我重新思考人生,Tom是学术界最伟大的学者,却选择了和普通人一样的、非常简朴与平凡的生活方式,他拥有各种各样的光环,备受人们爱戴与崇敬,但却如此儒雅谦卑、和蔼可亲,没有一点大咖的做派。Tom虽然永远离开了我们,但他所留下的学术和精神遗产就像一座光芒四射的灯塔,指引着后人前进的道路。愿学术界的每一个人都能以Tom为榜样,居处恭,执事敬,与人忠,为人师表,把一生奉献给科学事业。
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“他也独具一种天赋,能简明清晰地解释最艰深的科研难题”
Ramesh Jain@UCI
For me, Tom Huang's research was an inspiration in the emerging field of digital imaging during my early research career even before I landed in USA. He was initially my hero, but he started interacting with me as a friend and I found that Tom and Margaret were in my close friend circle. We met whenever possible and traveled to many conferences together. I adored and loved him for his passion, honesty, leadership, and his dedication to research. He also had a unique way to make most difficult research issues articulated in an easy way to address them. It is tough to see such friends leave. He will always be one of the fondest memories that I will treasure. And I want to celebrate his life for his research contributions, for his friendship, and for training so many brilliant researchers that are now enriching multiple disciplines.
在我来美前的早期研究生涯中,Tom的研究就启发了我探索数字图像处理这一当时的新兴领域。起初他是我研究道路上的英雄,后来他们夫妇也成了我互动频繁的密友。我们时常相见,一起参加众多学术会议。我敬爱他的热情、真诚、他的领导力和他对科研的奉献精神。他也独具一种天赋,能简明清晰地解释最艰深的科研难题。这样一位朋友离世,令人悲痛欲绝。他将永远成为我最珍视的美好回忆。我愿颂扬他一生的科研贡献,他给予的友谊,和他对无数杰出弟子的教诲和传承。
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“我敬爱Tom,不仅因为他的科研才华,更因为他是一位出色的长者,一位关爱他人的教育家,一位真诚的同事和朋友,一位谦逊和蔼的绅士。”
梁志培@UIUC
I am blessed to have been Tom’s colleague and close friend for over 26 years. Over the last few days since Tom’s passing, I have been thinking about him, thinking about our many interactions including the last conversations, one of which took place just a few hours before his passing. Many people knew Tom and I were special friends; I admired and loved Tom not just because he was a brilliant researcher, but also because he was a wonderful human being, a caring teacher and mentor, a sincere colleague and friend, and a humble and gracious person.
我有幸身为Tom教授的同事和密友,长达二十六年。在他去世后的几天内,我一直在深切地怀念他,思念我们过去的点点滴滴,包括在他离世前几小时我们最后的对话。Tom和我是亲密的朋友。我敬爱Tom,不仅因为他的科研才华和成就,更因为他是一位出色的长者,一位关爱他人的教育家,一位真诚的同事和朋友,一位谦逊和蔼的绅士。
There are so many wonderful stories to share about Tom and his work; his commitment to mentoring students was particularly inspiring to me. During the last year of his life, he continued to come to work and participate in his weekly group meetings, to which I also attended. Although he came in a wheelchair, he was always in high spirits and enthusiasm. He asked tough questions, but also provided encouraging, insightful and helpful suggestions and guidance. This was especially impressive to me, since I knew how much he was struggling with his poor health.
Tom一生丰富多彩;杰出贡献数不胜数。他对学生的精心培育和忘我精神令我动容和鼓舞。即使在他生命的最后一年,Tom也不曾停止科研工作。他乘着轮椅,来参加学生的组会,但他高昂的精神和科研热情始终如一。他对学生的提问往往一语中的,同时又不断地给予学生们鼓励,为他们提供睿智而深刻的见解和指导。这一幕幕让我深受触动,因为我知道,他彼时一直在坚持与病魔作斗争。
Tom always held his students and colleagues in high regard. I had the privilege of helping Tom’s family and students organize the Huang Symposium, held in the Beckman Institute from September 30 to October 1, 2016, to celebrate Tom’s illustrious career on the occasion of his 80th birthday. During the closing ceremony, in response to a question of who had been his best student, Tom responded sincerely that each of his students was the best in their own way. That answer fully reflected who Tom was: no matter who you were, he always viewed you as the best, treated you as the best, made you feel you are the best, and helped you to become the best. I miss him, greatly.
Tom对学生和同事的重视和帮助,广受赞誉,有口皆碑。2016年9月30日至10月1日,我曾有幸和他的学生与家人一起,在UIUC贝克曼研究中心组织了“黄煦涛教授专题论坛”,以庆祝Tom八十大寿,并回顾他卓越的一生。当他在闭幕晚宴上回答“谁是您最好的学生?”这一问题时,Tom真诚地说:“我每一个学生都是最好的,以他们自己独有的方式。”这个回答充分反应了黄教授的为人和品格,不管你是谁,他都视你为最好,待你如最好,令你感到自己是最好,并真正无微不至地帮助你做到最好。我深切地怀念他!
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“黄老先生应该是我一生遇到过的不多的‘纯粹的学者’”
马毅@UCB
2020年4月28号于加州伯克利
四月二十六号一早收到消息,黄煦涛先生,也就是我们熟知的Tom Huang教授,离开我们了。惊闻噩耗,万分悲痛! 年初先生的夫人不幸过世,原本已经与先生约好,四月初携家人一起回Urbana-Champaign去看望他,共进晚餐。机票酒店都已早早订好,后来却因为肺炎疫情被迫取消,讲好改等疫情过去再去探望。想不到这竟然成为终生遗憾! 万般无奈懊悔之中,徒增悲伤。
我在读研究生的时候,是读黄老先生的论文入门三维视觉的。他与MIT的Oliver Faugeras教授合作的1989年论文“Some Properties of the Essential Matrix in Two-view Motion Estimation”是公认的现代多视角几何和三维重建领域里程碑式的工作。我上计算机视觉课程做的课程项目就是实现他们提出的算法;而我发表的第一篇第一作者的论文就是将这项工作扩展到连续时间情况。2000年毕业后,有幸受到先生提携,与先生在UIUC 电子与计算机工程系共事十年,成为一生良师益友。不过后学末进,一直难望先生项背。
黄老先生应该是我一生遇到过的不多的“纯粹的学者”:一生心无旁骛,专心治学。先生一生共发表了上千篇论文,培养了上百名博士生。真可谓著作等身,桃李满天下。先生退休以后从未间断工作,甚至没有放缓节奏,一直到八十多岁。UIUC同事之间戏称:我们的愿望是在六十岁时还能有先生八十岁时的精力和头脑。黄老先生不仅开创了现代三维视觉,而且慧眼识英,一手推动了UIUC在计算机视觉领域的发展和鼎盛:后来的Narendra Ahuja教授,Jean Ponce教授(现在Ecole Normale Supérieure),David Kriegman教授(现在UC San Diego),我(现在伯克利),David Forsyth教授,还有李飞飞教授(现在斯坦福)等等,使得UIUC在计算机视觉领域多年一直能引领世界。
黄老先生一直关心计算机视觉在国内的发展。应该说是为中国培养了第一批计算机视觉领域的领军人才。因为他对中国科研的突出贡献,被授予科学院和工程院的外籍院士。他尤其支持北京微软亚洲研究院的发展。与他共事的十年中,几乎每个暑假都会与他在北京微软研究院共度几周。我2004年暑假回北京结婚时,他和夫人以及微软研究院沈向洋院长作为我男方嘉宾和证人出席。他在我婚礼上的谈笑风生,仿佛就在昨日。我夫人得知先生过世的噩耗,专门找出当时的照片集,其中这一张有Tom与夫人还有我的父亲。可惜照片中的三人如今都不在了:父亲两年前因肺炎过世,而Tom和夫人也在今年先后离开了我们。睹物思人,更加悲从中来。
先生做事严肃,做人风趣,皆可为后辈楷模。他的一生,对学生对同事的影响巨大而深远。今年开年以来,疫情肆掠,噩耗频传,前景叵测。但正因如此,才需要更加坚定信念,坚持做人的标准和目标。先生的一生,可谓为后生们树立了最为鲜明的榜样。悲痛哀思之后,对先人最大的尊重与最好的缅怀,是继承和发扬他们的精神和事业!
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Professor Thomas Huang and Mister Miyagi
黄煦涛教授与宫城大师
Nicu Sebe@UTrento
I wish it was not needed to write this piece. Tom was always a standing point and even if I haven’t visited him so often as I wanted I knew he was there answering emails practically at all the hours. He gave the impression he was living in his office, he was always available, always ready to give a good advice. Life is going to be different without him. Every single one of us was sad to hear the news but he decided to go to meet his beloved wife Margaret who could not be without him for too long. We always met them together and I remember jokingly saying that Margaret must have become an expert given the many conferences and presentations she has attended.
我多希望我永远不需提笔写下这些怀念。Tom像是一个令人永远感到坚实存在的落脚点:即使我无暇频繁前往拜访,我也感觉他永远呆在办公室里,永远迅速回复邮件,永远能拨冗给我提点建议。随着他逝去,生活必将永远不同了。我们每个人都为他的离去无比悲伤:但他终于得以和深爱并依恋他的妻子Margaret 再度团聚。他们生前就永远相伴:我还记得有次开玩笑,说Margaret 想必也也已经成为了计算机视觉的大师 – 因为她永远和黄教授一起前往学术会议和报告。
Tom was not my original PhD advisor. As such I’m probably the only one of the Huang’s research family who has not graduated from UIUC. Instead, I’ve convinced Tom to be my co-advisor while I was completing my PhD in Leiden, The Netherlands, so I am a sort of adopted son but I was never treated differently from all my other brothers. I was probably one of the few that would receive responses from Tom at strange hours in the night for him so I always felt somehow privileged.
Tom本不是我的博士导师 – 因而我也许是他的学生中,少有的不是从UIUC毕业的。我在荷兰莱顿大学攻读博士期间,邀请到了Tom担任我的共同博士导师。所以在他的学术大家庭里,我只算个“养子”,但是他对待我和其他“亲生”学生们从来一视同仁。由于我长期身处欧洲,我大概成了Tom的少数几个可以在深夜收到他的回信的学生,对此我深感荣耀。
Let me tell a story that will stay with me for all my life. It was July or August 2005 and Tom was invited to a conference in Iasi, Romania. When he received the invitation he was asking if I was around as well. Knowing that he and Margaret never went to Romania I’ve decided to attend and to be their guide during their stay in Romania. I was waiting for them at airport in Bucharest and while we were going towards the city, the taxi driver has asked me if Tom was the actor playing the role of Mr. Myiagi in Karate Kid. At that moment I realized that Tom was looking very much alike to Pat Morita playing this role, but I told the driver that this was not the case. To my surprise, the guy didn’t believe me and kept on saying that he understands why the “famous actor” wants to stay anonymous. I told Tom about it and he said that maybe we should not disappoint the guy. In this way, there is now one person in Romania who has an autograph and a photo with Tom thinking that he actually met the Karate Kid master! Besides the humorous side of the situation, this real story made me realize the similarity between Tom and Mr. Myiagi and I’m not referring here only to their physical similarity. Tom, as his counterpart Myiagi, was always a person with huge qualities but he never liked to show them being extremely modest. He had an incredible kind way of making you believe in yourself and he was able to indicate with very subtle hints the way to improve yourself (in the same way Myiagi mentors Daniel in the film).
容我分享一个终生难忘的故事。在2005年7月或8月,Tom被邀请参加在罗马尼亚雅西市举办的一个学术会议。他受邀时,特意问到我是否也去。在得知他们夫妇从未到访过罗马尼亚后,我决定专程前往,为他们导游。在首都布加勒斯特机场,我迎接来访的Tom夫妇,并共乘一辆出租车前往市内。在车上,司机突然问我,身边这位老先生是不是《功夫梦》中饰演“宫城大师”的演员。此时我突然意识到,Tom的长相非常像这个角色的演员森田则之,赶紧告诉司机此人非彼人。令我惊讶的是,司机压根不信,并反复表示他理解,著名演员出行都想保持低调。我和Tom说后,他幽默地说,我们也许不该让司机失望。因此结局是:罗马尼亚有了这样一个人,他有一张和Tom的签名合影,并且坚信和他合影的是位功夫大师!这个故事除了滑稽的一面,还让我意识到Tom和宫城大师不仅形似,更加神似:他们同样能力无比杰出,然而从不炫耀,谦虚至极。Tom有种难以置信的能力,让你变得更加自信,并在潜移默化中教育你如何提升(就像宫城大师在电影中教育主角丹尼尔一样)。
Another thing that comes to mind is related to his presentations which were incredible simple but extremely effective. I remember once (I believe it was CVPR 2009) Tom had to present an article on behalf on one of his PhD students who has dutifully prepared fancy transparencies. Tom started the presentation but all of a sudden he said that he wants to present the things the way he understood them and decided not to use the transparencies of his student but instead took an empty one and started to draw the scheme with a permanent marker. Needless to say that his presentation was extremely eloquent and clear but he said as a disclaimer that we should not tell his student that he has not used all the prepared fancy slides!
我想起的另一件事和他的演讲有关。Tom的演讲永远简单有力。记得有一次(应该是CVPR 2009), Tom不得不代替他的一个博士生去报告一篇论文。学生尽职尽责准备好了出色的幻灯片(指透明的物理幻灯片)。Tom开始讲后,突然停下来说,他想根据他自己对这个问题的理解来做报告。于是,他没有使用学生备好的幻灯片,而是拿了一张空白幻灯片,现场用马克笔在幻灯片上开始作图,边画边讲。毫无疑问,他的演讲极其雄辩、流利而清晰。可是最后他还声明:希望大家不要告诉他的学生,说他没有使用学生辛辛苦苦做的幻灯片!
I could not find the right words to express the influence Tom has had on my academic career and on what I have become. Besides being a better scientist I was bestowed with an incredible research family. Being part of this “exclusivist” club made me realize how lucky I was. Even now, when I tell everyone that I was a student of Tom I see a hint of jealousy and appreciation in the eyes of my interlocutor.
我无法用只言片语概括Tom对我的学术生涯和人生的影响。除了学术本身的进益,他还让我拥有了一个最好的学术家族。能加入这个独家俱乐部,让我倍感幸运。时至今日,当我告诉我别人我师承Tom,我还能发现对方眼里闪着欣赏和嫉妒的光。
Tom, I feel I lost one of my fixed reference points, and this not only in research but also in life. I will always remember the time I spent with you in Urbana-Champaign and the meetings we always had during conferences when we would all go for lunch or dinner having the feeling to belong to a big happy family.
Tom,没有你,我感觉失去了科研和生活中的一个“固定参照物”。我铭记着我们在香槟-厄巴那的UIUC校园共度的时光,和我们参加学术会议时的相聚,一起用餐,感受着属于同一个大家庭的欢乐。
I miss you very deeply.
我非常深切地思念你。
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“Tom的拳拳之心和君子之风总是我的榜样!”
余凯@地平线
2020年4月30日凌晨2点
听到Tom过世的消息,我感到很突然,也无比难过!恐怕很难在计算机视觉领域甚至整个人工智能领域找到这样一位泰斗级别的学者,像Tom一样获得我们这么多人的尊敬,在其一生中培养和影响过如此众多的学者。他学识渊博,善良儒雅,充满智慧。对于我们很多人来说,Tom是前辈,是老师,是合作者,也是朋友,更是为学和为人的榜样!
今天回忆起来,10年前有幸和Tom的一段合作和结缘至今让我难忘。那时候我在加州硅谷的NEC美国研究院做Department Head,带领一个实验室从事计算机视觉和机器学习方面的研究。我们实验室和Tom一直有合作,基本上每年都有他的1或2个学生来我们这实习。
大概是2010年初的一个早晨,我在睡梦中被电话叫醒,Tom从伊利诺伊打电话过来。大意说他的研究经费有缺口,问我这边能不能今年尽量想办法多提供一些funding, 他有不少博士生需要资助。我听了后很感动,因为Tom做为美国工程院院士和学界泰斗,在一般情况下是不用担心研究经费的,但是2009年美国刚刚经历一次重大金融危机,研究项目经费都被削减。了解Tom的人都知道,每年都有很多非常聪明的学生慕名来求学,Tom又是个有成人之美的谦谦长者,所以他常年维持一个很大的研究组,博士生加博士后有时20多人。他老人家为了自己的学生们这么操心,对他们的成长这么有爱心,我很被感动,于是也是从不太宽裕的实验室经费中尽量解决。
2010年前后,我们的合作可以说是空前成功。Tom的优秀学生被派到我们实验室,作为实习生参与合作研究,那一批实习生可谓众星闪耀,杨建朝、周曦、曹亮亮等等,他们今天都在各自的事业中取得很辉煌的成就。我们在非监督特征学习方面特别是sparse coding方向取得重大进展。我们一起合作的CVPR和ECCV论文,经过长达十年时间的检验,今天还是当年所有CVPR和ECCV会议发表论文中被引用最高的经典论文之列。而且,以“NEC-UIUC”命名的团队还取得了第一届ImageNet图像识别竞赛的全球第一名!
2010年冬天,由于我们的合作取得如此丰盛的成果,Tom很高兴的邀请我去UIUC访问并做学术报告,我也很想去看看这个被Tom的学生自嘲为玉米地大学的顶尖学府。晚上他和Margaret请我在downtown的一个餐馆吃饭。Margaret那时候已经身体不好,平日Tom忙于教学科研,但是对Margaret却是要照顾到。晚餐中聊天的内容我已经不记得了, 晚饭后Tom颤颤巍巍的搀扶着Margaret在雪夜中离去的背影,却让我至今难忘!
2012年我回国后,就不再从事学术研究了,一门心思从事面向市场的技术创新。2012年的下半年,Tom来北京,一帮学生和朋友组织聚会欢迎Tom,我和Tom彼此重逢都非常高兴,Tom还是那么精神。去年, 我准备专门去美国给他祝寿,但是据说由于大环境因素Tom取消了生日聚会。没想到2012年在北京那是最后一次见面!
十年过去,那个早晨Tom为学生找资助的电话,那个雪夜Tom扶着Margaret的背影,总是在脑子里印象深刻。Tom的拳拳之心和君子之风总是我的榜样!愿Tom和Margaret这对神仙眷侣在天堂安息!
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“最让我感动的是他的善良温和、伉俪情深和完美的家庭观。”
张亚勤
2020年4月27于西雅图
从圣诞节后由于Covid-19, 一直在西雅图郊外的家里。早上接到Harry (沈向洋)的电话,说Tom身体状况急剧变坏,下午家人组织了一个小范围的Zoom在线和Tom告别,有机会最后给他说句话感谢他。
一月份Margaret过世,我和太太Jenny给Tom写了Email,多年没见,也希望能去看望他。当时我们都担心Tom会过度悲伤。毕竟他们从大学时代认识50多年,伉俪情深,形影不离犹如一人。Margaret曾经说过,Tom每次开会旅行她都要跟随,因为她就是Tom的家。
认识Tom夫妇已经整整30年了。大部分都是在各种信号处理、图像编码和计算机视觉方面的专业会议。Tom是计算机视觉的先驱,自然是会议的中心人物,但每次他和Margaret都会花时间和中国的学者和学生交流。记得他更喜欢小型的研讨会(Picture coding symposium, signal processing workshop, etc),他的问题往往很尖锐但从不咄咄逼人,他的演讲通常都是手写的胶片,用最简单的语言、形象和幽默的比喻和严谨的公式阐述最新的理念。
1998年秋天,他邀请我到Urbana Champion参加一个他主办的会议 当时我正在做一个决定是否加入即将成立的微软中国研究院。晚饭时我咨询Tom,他告诉我应该尝试新的机会。后来我回到北京,Tom和Margaret几乎每年夏天都来北京,白天Tom在研究院指导研究,晚上和Margaret还有朋友们经常一起用餐品酒,有时也一起去音乐会。
Tom为信号处理和计算机视觉做出了开创性贡献,他是当代计算机领域的科学巨匠。他桃李满天下,学生遍及学术和产业界,很多已经成为AI和计算机领域的全球领军人物。但最让我感动的是他的善良温和、伉俪情深和完美的家庭观。
在和Tom最后的告别时刻,Jenny、我、他家人、学生和亲人一同为他祈祷,给他看过去的照片和讲着过去的故事。Tom平静安详的躺在那里有微微的回应。弥留之际的Tom应该是幸福的,不仅因为他成就辉煌和充满爱的一生,更重要的是他马上就去和他最爱的Margaret在天堂永远陪伴!
Tom和Margaret一路安好,幸福安息!
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“Tom对学生的爱护和关怀人人羡慕,可能没有一个导师能与之相比。”
张正友@腾讯
2020年4月28日于深圳
第一次认识Thomas S. Huang和他太太Margaret是1988年,他们来我所在的法国INRIA实验室访问。Tom在计算机视觉和信号处理领域已经是上帝一样的存在,而我刚开始读博士还不到一年,但Tom平易近人,睿智儒雅,三十多年来一直是我生命中高山仰止的丰碑。在2016年庆祝Tom八十大寿的发言中,我回顾了Tom对我学术生涯的深远影响。无论是我的研究课题,我的第一本书,还是当选IEEE Fellow和ACM Fellow,都离不开Tom的关怀和支持。
虽然我不是Tom的学生,但Tom对学生的爱护和关怀人人羡慕,可能没有一个导师能与之相比,这留给Tom的学生回顾。我这里记一下2005年ICCV 在北京召开时的一个趣事。在一个晚宴后的华人座谈会上,Tom说一个人要在学术上能有影响,有一个让别人容易记住的名字很重要。除非一个人的名字本身就比较容易记,比如Ying Wu,他都建议他的学生取一个英文名字,比如给Juyang Weng取了John。否则需要花更大的努力让别人记住,比如Zhengyou(我没有Tom的学生那么幸运,我没有英文名字)。
Margaret有着令人不可思议的超强记忆力。在2016年见到Margaret时,虽然她已经有十五年没有见到过我的小孩,但Margaret仍然非常清楚的记得我几个小孩的中文和法语名字。
春节期间听到Margaret不幸去世的消息,我就计划疫情过后去看Tom,不想竟成永别。感恩Tom家人的大爱,昨天在Tom去世前给我们机会和Tom视频话别。Tom,你追随Margaret而去,你们肯定会在天国相会,携手永伴。Tom,一路走好!R.I.P.
2016年庆祝Tom八十寿辰学术研讨会上和Tom、Margaret合影
2005 ICCV 晚宴,Tom颁发IEEE Fellow证书
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“我知道,他是经常满足别人心愿的,这也是他为人爱戴的原因。”
周少华@中科院
2020年4月26日于半岩居
从朋友圈获知Tom骑鹤仙去了,虽说不是完全出乎意料,但还是非常惊讶,心戚戚然。于是,坐在窗前码字少许,以期平复一下自己的心情。
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