index.json

[{"authors":["tx"],"categories":null,"content":"Tengxiang Zhang is an Research Associate Professor at Institute of Computing Technology, Chinese Academy of Sciences, where he works at the Pervasive Computing Research Center. With a background in both CS and EE, Dr. Zhang\u0026rsquo;s research lies in the technical side of ubiquitous computing and human computer interaction. His work enables access to the digital world anytime anywhere by developing wearable sensors, IoT tags, and AI-agent-based interfaces. He publishes on top-venues including CHI and IMWUT, and has been honored with two paper awards. He serves on the SIGCHI Sustainability Committee and the CCF HCI and Ubicomp Technical Committees. His work falls into three categories: 1) Wearable and skin sensors, 2) Ultra-low-power IoT tags and localization systems, 3) AI-agent-based interaction interfaces.\n","date":-62135596800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":-62135596800,"objectID":"d4584e3892bebc6a197baa9c2f4852bd","permalink":"https://txzhang.info/authors/tx/","publishdate":"0001-01-01T00:00:00Z","relpermalink":"/authors/tx/","section":"authors","summary":"Tengxiang Zhang is an Research Associate Professor at Institute of Computing Technology, Chinese Academy of Sciences, where he works at the Pervasive Computing Research Center. With a background in both CS and EE, Dr. Zhang\u0026rsquo;s research lies in the technical side of ubiquitous computing and human computer interaction. His work enables access to the digital world anytime anywhere by developing wearable sensors, IoT tags, and AI-agent-based interfaces. He publishes on top-venues including CHI and IMWUT, and has been honored with two paper awards. He serves on the SIGCHI Sustainability Committee and the CCF HCI and Ubicomp Technical Committees. His work falls into three categories: 1) Wearable and skin sensors, 2) Ultra-low-power IoT tags and localization systems, 3) AI-agent-based interaction interfaces.\n","tags":null,"title":"Tengxiang ZHANG","type":"authors"},{"authors":["Xin Zeng","Xiaoyu Wang","__Tengxiang Zhang__","Chun Yu","Shengdong Zhao","Yiqiang Chen"],"categories":null,"content":"\r","date":1698624000,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1698624000,"objectID":"f6d1dbde02072fe4714ce06af370a28e","permalink":"https://txzhang.info/publication/gesturegpt/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/gesturegpt/","section":"publication","summary":"arxiv. Triple-agent based LLM system for gesture understanding and grounding to system actions.","tags":["AI agents","gesture","large language model"],"title":"GestureGPT: Zero-shot Interactive Gesture Understanding and Grounding with Large Language Model Agents","type":"publication"},{"authors":["__Tengxiang Zhang__","Zitong Lan","Chenren Xu","Yanrong Li","Yiqiang Chen"],"categories":null,"content":"\r","date":1671062400,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1671062400,"objectID":"50d5dd7f9f51e69a9a8c9f1284b097a5","permalink":"https://txzhang.info/publication/bleselect22/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/bleselect22/","section":"publication","summary":"IMWUT 2022 BLEselect enables head and hand gestural selection of IoT devices through AoA estimation from smart glasses.","tags":["tag","interaction","localization","smart glasses"],"title":"BLEselect: Gestural IoT Device Selection via Bluetooth Angle of Arrival Estimation from Smart Glasses","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Zeng","Yinshuai Zhang","Xin Jiang","Xuhai Xu","Anind K Dey","Yiqiang Chen"],"categories":null,"content":"\r","date":1651104000,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1651104000,"objectID":"f588af8ecef59bd3a196b3f3742abe2a","permalink":"https://txzhang.info/publication/boldmove_chi22ea/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/boldmove_chi22ea/","section":"publication","summary":"CHI'22 Late-breaking Work. Semantic-based IoT device control method that is suitable for resource-constrained input interfaces.","tags":["semantic","IoT","resource-constrained","tag"],"title":"BoldMove: Enabling IoT Device Control on Ubiquitous Touch Interfaces by Semantic Mapping and Sequential Selection","type":"publication"},{"authors":["__Tengxiang Zhang__","Zi Qian","Hsuan Wei Fan","Jie Ren","Yuntao Wang","Yuanchun Shi"],"categories":null,"content":"\r","date":1642723200,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1642723200,"objectID":"3b5def50df81a832986ec41f475da90f","permalink":"https://txzhang.info/publication/bitid_journal22/","publishdate":"2022-01-01T00:00:00Z","relpermalink":"/publication/bitid_journal22/","section":"publication","summary":"CCF TPCIThe extended journal version of BitID with open-sourced system implementation and usability studies.","tags":["ultra low-power","RFID","sensing","tag","wireless"],"title":"Easily Add Battery-free Wireless Sensors to Everyday Objects: System Implementation and Usability Study","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Zeng","Yiqiang Chen"],"categories":null,"content":"\r","date":1641168000,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1641168000,"objectID":"942ceefd5dd3067d4e3bae206f56c4d7","permalink":"https://txzhang.info/publication/p_crossdevice_2022/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_crossdevice_2022/","section":"publication","summary":"\r","tags":["AR"],"title":"An AR Device Facilitated Multi-device Interaction System and Method","type":"publication"},{"authors":["__Tengxiang Zhang__","Zitong Lan","Yanrong Li","Yiqiang Chen"],"categories":null,"content":"\r","date":1641081600,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1641081600,"objectID":"cbed4af2f7c4b5e3e6d915f72b6bfffa","permalink":"https://txzhang.info/publication/p_bleselect_2022/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_bleselect_2022/","section":"publication","summary":"\r","tags":["AR"],"title":"A Device Selection System and Method","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Zeng","Yiqiang Chen"],"categories":null,"content":"\r","date":1609804800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1609804800,"objectID":"501d49455163226944af91a0e5e28b8d","permalink":"https://txzhang.info/publication/p_semantic_2021/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_semantic_2021/","section":"publication","summary":"\r","tags":["semantic"],"title":"A Semantic-based Device Association Method","type":"publication"},{"authors":["__Tengxiang Zhang__","Steve Hodges"],"categories":null,"content":"\r","date":1588032000,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1588032000,"objectID":"fec824d23bded5ce5238bfb45166e6f2","permalink":"https://txzhang.info/publication/backscatter_workshop20/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/backscatter_workshop20/","section":"publication","summary":"Self-SustainableCHI'20 Workshop. On going effort. Design considerations of sustainable interaction interfaces with backscatter sensing techniques.","tags":["ultra low-power","backscatter","sensing","tag","wireless"],"title":"New Opportunities for Sustainable Interaction Using Backscatter Sensors","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Zeng","Yinshuai Zhang","Ke Sun","Yuntao Wang","Yiqiang Chen"],"categories":null,"content":"\r","date":1587427200,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1587427200,"objectID":"39c437efce40df1b76a03203e1e47936","permalink":"https://txzhang.info/publication/thermalring20/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/thermalring20/","section":"publication","summary":"CHI'20ThermalRing uses low-resolution thermal camera for private, robust, and efficient gesture sensing and tag recognition.","tags":["ring","tag","sensing","interaction","machine learning"],"title":"ThermalRing: Gesture and Tag Inputs Enabled by a Thermal Imaging Smart Ring","type":"publication"},{"authors":["Yuntao Wang","Zichao Chen","Hanchuan Li","Zhengyi Cao","__Tengxiang Zhang__","Huiyi Luo","Ke Ou","John Raiti","Chun Yu","Shwetak Patel","Yuanchun Shi"],"categories":null,"content":"\r","date":1587340800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1587340800,"objectID":"49f23fd55b3107c9c81dd3d70f2b3ff5","permalink":"https://txzhang.info/publication/movevr20/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/movevr20/","section":"publication","summary":"CHI'20 MoveVR generates multiform force feedback for an immersive VR experience by leveraging a household cleaning robot.","tags":["VR","haptic","interaction"],"title":"MoveVR：Enabling Multiform Force Feedback in Virtual Reality using Household Cleaning Robot","type":"publication"},{"authors":["__Tengxiang Zhang__","Jiayuan Gao","Yiqiang Chen"],"categories":null,"content":"\r","date":1577836800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1577836800,"objectID":"40cbae286dd10437b248d3f3a9ff74df","permalink":"https://txzhang.info/publication/p_prothesis_2020/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_prothesis_2020/","section":"publication","summary":"\r","tags":["accessibility"],"title":"A Movement Symmetry Based Smart Prosthesis Control Method and System ","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Zeng","Yiqiang Chen"],"categories":null,"content":"\r","date":1577836800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1577836800,"objectID":"fd2f13105de65595f37441d81417a586","permalink":"https://txzhang.info/publication/p_smartring_2020/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_smartring_2020/","section":"publication","summary":"\r","tags":["ring"],"title":"A Smart Ring based Gesture Recognition Method and System","type":"publication"},{"authors":["__Tengxiang Zhang__","Jiayuan Gao","Yiqiang Chen"],"categories":null,"content":"\r","date":1577836800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1577836800,"objectID":"5984b0b87f1930ca3c6c7d6eba5422e2","permalink":"https://txzhang.info/publication/p_vein_2020/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_vein_2020/","section":"publication","summary":"\r","tags":["sensing"],"title":"Apparatus and Method for Cognitive Load Analysis Based on Near-infrared Imaging of Subcutaneous Veins ","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Yi","Ruolin Wang","Jiayuan Gao","Yuntao Wang","Chun Yu","Simin Li","Yuanchun Shi"],"categories":null,"content":"\r","date":1575158400,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1575158400,"objectID":"be790e4dd5567ebf86241b95cfa0379f","permalink":"https://txzhang.info/publication/flysync19/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/flysync19/","section":"publication","summary":"IMWUT 2019 This paper improves the target selection performance by optimizing blinking pattern sets with Bayesian-based human modeling.","tags":["interaction","IoT","Bayesian"],"title":"Facilitating Temporal Synchronous Target Selection through User Behavior Modeling","type":"publication"},{"authors":["Yuntao Wang","Jianyu Zhou","Hanchuan Li","__Tengxiang Zhang__","Minxuan Gao","Zhuolin Cheng","Chun Yu","Shwetak Patel","Yuanchun Shi"],"categories":null,"content":"\r","date":1568505600,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1568505600,"objectID":"8d49183a1294b82a512190aefc85b16d","permalink":"https://txzhang.info/publication/flextouch19/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/flextouch19/","section":"publication","summary":"IMWUT 2019 FlexTouch attach conductive strips to touchscreen edges for long-range touch sensing up to 4m and object detection up to 2m.","tags":["tag","interaction","sensing","machine learning"],"title":"FlexTouch: Enabling Large-Scale Interaction Sensing Beyond Touchscreens Using Flexible and Conductive Materials","type":"publication"},{"authors":null,"categories":null,"content":"Interactive everyday things are essential for ubiquitous sensing and interaction. Replace existing things with battery-powered ‘smart’ things is not sustainable, since the large amount of batteries would introduce huge maintenance efforts and cause significant damage to the environment. So, I develop maintenance and battery free wireless sensing tags that can be easily deployed on existing everyday things. The sensor’s many hardware components (e.g. power source, RF oscillator) and functions (e.g. signal digitalization) are offloaded to a remote resource-abundant computer. The cost, size, and power consumption of such sensors are then minimized, which makes them suitable for ubiquitous deployment on existing infrastructure and objects.\nFigure 1. BitID sensors can be easily made (a), registered (b), and deployed (c) on a door to detect intrusion (d).\rIn BitID, I propose to modify commercial-off-the-shelf (COTS) low-cost and passive UHF RFID tags to detect binary object states. By attaching shorting stubs to exposed antenna around the chip, the tag’s readability is modulated by the connection status of the shorting stubs. Users can easily make BitID sensors using everyday tools like copper tape and scissors. We deploy BitID sensors on six objects in a room to show its high scalability. The codes for the BitID sensing system is open sourced on GitHub. The RFID reader used in BitID can be expensive and is not widely available yet. So I look into opportunities to leverage more accessible computers (e.g. smart phone, smart ring) to power and compute for the resource-constrained sensors. In FlexTouch, conductive tapes are attached to the touch screen of a smart phone to enable large-scale sensing (e.g. Yoga mat for posture detection). In ThermalRing, I used a smart ring with a low-power thermal camera to recognize passive aluminum stickers for quick access.\nGo to Finger Wearables\nGo to Interconnection Techniques\n","date":1554076800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1554076800,"objectID":"46fed2c10fa00807b4f71d2ff2584b69","permalink":"https://txzhang.info/project_bak/sensing/","publishdate":"2019-04-01T00:00:00Z","relpermalink":"/project_bak/sensing/","section":"project_bak","summary":"I invent passive sensors that can be deployed in a DIY manner to detect object status and human behaviors.","tags":null,"title":"Sensing Tags","type":"project_bak"},{"authors":["__Tengxiang Zhang__","Xin Yi","Ruolin Wang","Yuntao Wang","Chun Yu","Yiqin Lu","Yuanchun Shi"],"categories":null,"content":"\r","date":1543795200,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1543795200,"objectID":"3b9f5ed2f92f7cf199d45000050b3ac0","permalink":"https://txzhang.info/publication/taptopair18/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/taptopair18/","section":"publication","summary":"IMWUT 2018Tap-to-Pair pairs two wireless devices spontaneously with no modifications on either device.","tags":["interaction","wireless","sensing","IoT"],"title":"Tap-to-Pair: Associating Wireless Devices with Synchronous Tapping","type":"publication"},{"authors":null,"categories":null,"content":"Finger wearables can support accessible and subtle gesture inputs. They are also close to the interacting object, which makes them ideal for resource sharing. However, finger wearables are challenging to design due to their size constrains. The small size further limits the available computing, I/O, and power resources on such computers.\nFigure 1. Users wrap the flexible ring band around the finger and align the magnetic connectors to wear the ring. I/O module are also connected with the main board and battery through the connectors. To overcome the constrains, I explored modular design for a smart ring (Figure 1). Instead of integrating various I/O functions into one piece of hardware, ModularRing uses switchable I/O modules for interaction. The novel wearing design allows the I/O module to be separated from the wireless MCU and battery. Users can then switch the I/O module based on needs, and combine multiple rings with different I/O modules to create advanced interfaces. For example, a ring with a microphone module and a ring with a speaker module can work together as an audio interface to make a call. ModularRing won Finalist of 2018 Global Innovation Competition and led to three patents.\nFigure 2. ThermalRing can recognize gestural inputs on flat surfaces and image passive tags by leveraging the heat radiated from hand. In ThermalRing, I proposed a novel I/O module-a low-power low-resolution thermal camera for gesture and tag inputs. ThermalRing analyzes the heat silhouette of the hand to recognize drawing gestures on flat surfaces. I also proposed ThermalTag, passive tags that can be easily made using materials with high heat reflectivity (e.g. copper tape). When covered by hand, ThermalTag reflects the heat radiated from the hand and thus can be imaged. This demonstrates how the on-body wearables can work together with off-body tags for more interaction possibilities.\nGo to Sensing Tags\nGo to Interconnection Techniques\n","date":1524787200,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1524787200,"objectID":"021eef4ba8c5520b88edf788c5ede29d","permalink":"https://txzhang.info/project_bak/smartring/","publishdate":"2018-04-27T00:00:00Z","relpermalink":"/project_bak/smartring/","section":"project_bak","summary":"I design modularized smart rings and use a thermal imaging smart ring to detect gesture and tag inputs.","tags":null,"title":"Finger Wearables","type":"project_bak"},{"authors":["__Tengxiang Zhang__","Yuanchun Shi","Xin Yi","Yuntao Wang","Chun Yu"],"categories":null,"content":"\r","date":1514764800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1514764800,"objectID":"6f03ae8b88e6902cceb97ed00d760426","permalink":"https://txzhang.info/publication/p_tap2pair_2018/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_tap2pair_2018/","section":"publication","summary":"\r","tags":["association"],"title":"Pairing method and wireless device for pairing using wireless signals","type":"publication"},{"authors":["Yuanchun Shi","Yinshuai Zhang","__Tengxiang Zhang__"],"categories":null,"content":"\r","date":1514764800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1514764800,"objectID":"d578c40369efa2d79ca2c24f1c8512cd","permalink":"https://txzhang.info/publication/p_smartring_2018/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/p_smartring_2018/","section":"publication","summary":"\r","tags":["ring"],"title":"Smart Ring and its Wearing Method","type":"publication"},{"authors":["__Tengxiang Zhang__","Xin Yi","Chun Yu","Yuntao Wang","Nicholas Becker","Yuanchun Shi"],"categories":null,"content":"\r","date":1505433600,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1505433600,"objectID":"20ec84ffbb02085612bab9405fc95aa7","permalink":"https://txzhang.info/publication/touchpower17/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/touchpower17/","section":"publication","summary":"IMWUT 2017, Discussion Paper TouchPower transfers on-body power to off-body devices during interaction to reduce maintenance demands.","tags":["power","interaction"],"title":"TouchPower: Interaction-based Power Transfer for Power-as-needed Devices","type":"publication"},{"authors":["__Tengxiang Zhang__","Nicholas Becker","Yuntao Wang","Yuan Zhou","Yuanchun Shi"],"categories":null,"content":"\r","date":1495324800,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1495324800,"objectID":"cd4c319bab6575b90f2bc537730893df","permalink":"https://txzhang.info/publication/bitid17/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/bitid17/","section":"publication","summary":"SmartCom'17, Best Paper Runner-upBitID adds sensing ability to everyday objects in a DIY, low-cost, and maintenance-free manner.","tags":["ultra low-power","RFID","sensing","tag","wireless"],"title":"BitID: Easily Add Battery-free Wireless Sensors to Everyday Objects","type":"publication"},{"authors":null,"categories":null,"content":"Currently, interactions are typically centered around powerful and independent computing devices. A pervasive interface requires interactive everyday things, which will introduce unacceptable deployment and maintenance efforts. Interconnection techniques reduce such efforts by enabling users to redistribute energy, computation, and I/O resources among computers and everyday things. Only necessary functions like sensing and feedback are kept on the resource-constrained things, while demanding functions like computing and power are offloaded to the resource-abundant computers.\nFigure 1. TouchPower is an Interaction-based Power Transfer (IPT) technique. It transfers DC power through contact between electrodes on the glove and the object. Powering off-body objects with on-body energy sources can significantly reduce user maintenance efforts. I invented the concept of Interaction-based Power Transfer (IPT), which leverages the contact and closeness between user and object during interaction to establish power transfer channel. IPT is especially suitable for devices that only need to be powered during interaction (e.g. mouse, remote controller). The concept was validated with a glove-based IPT prototype TouchPower (Figure 1), which transfers DC power through contacts of electrodes on the glove and objects. With careful design of the transfer interface, energy can be distributed without affecting the original interaction.\nFigure 2. Tap-to-Pair enables wireless device association with minimal resource requirements. I also develop human-centered association techniques to initiate interaction from the more available everyday things. Tap-to-Pair supports spontaneous device association based on temporal correlation of two signals. Users can tap on an IoT device to induce periodic wireless signal strength changes, which is then correlated with the blinking patterns of target devices for association (Figure 7). A follow up work proposes a 2D design space and design guidelines for blinking patterns by applying Bayesian models of user tapping behaviors. Such optimization enables the technique to support robust selection among more targets. A functional Tap-to-Pair application for Linux systems is open sourced on GitHub.\nGo to Sensing Tags\nGo to Finger Wearables\n","date":1493251200,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1493251200,"objectID":"d984a1cc7a26f321cbdb032f08a1bb7a","permalink":"https://txzhang.info/project_bak/links/","publishdate":"2017-04-27T00:00:00Z","relpermalink":"/project_bak/links/","section":"project_bak","summary":"I develop power transfer and cross-device interaction techniques for interactive IoT devices.","tags":null,"title":"Interconnection","type":"project_bak"},{"authors":["Huifeng Ma","Bengeng Cai","__Tengxiang Zhang__","Yan Yang","Weixiang Jiang","Tiejun Cui"],"categories":null,"content":"\r","date":1379203200,"expirydate":-62135596800,"kind":"page","lang":"en","lastmod":1379203200,"objectID":"7bcddcd771de4ca036695306ba0ceaaf","permalink":"https://txzhang.info/publication/metamaterial13/","publishdate":"2017-01-01T00:00:00Z","relpermalink":"/publication/metamaterial13/","section":"publication","summary":"IEEE Transactions on Antennas and Propagation 2013 This paper uses drilled-hole dielectric structures as gradient-index materials.","tags":["metamaterial","antenna"],"title":"Three-dimensional Gradient-index Materials and Their Applications in Microwave Lens Antennas","type":"publication"}]