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Articles by Achint
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💻 Building backend APIs has never been this fast. Just a few years ago, writing a complex API in TypeScript used to take me a full day — from…
💻 Building backend APIs has never been this fast. Just a few years ago, writing a complex API in TypeScript used to take me a full day — from…
Posted by Achint Setia
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I am recruiting several graduate students (both MSc and PhD level) for Fall 2026! The application deadline is December 01. Please apply through the…
I am recruiting several graduate students (both MSc and PhD level) for Fall 2026! The application deadline is December 01. Please apply through the…
Liked by Achint Setia
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Excited to start a new chapter at Atlassian. I’ve joined the Core Engineering group, where we work on systems that enable hundreds of thousands of…
Excited to start a new chapter at Atlassian. I’ve joined the Core Engineering group, where we work on systems that enable hundreds of thousands of…
Liked by Achint Setia
Experience
Education
Publications
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Co-operative Pedestrians Group Tracking in Crowded Scenes using an MST Approach
IEEE Winter Conference on Applications of Computer Vision
The problem of multiple pedestrian tracking in crowded scenes in videos recorded by a static uncalibrated camera is presented in this project. We propose an online multiple pedestrian
tracking algorithm that utilizes group behaviour of pedestrians using minimum spanning trees (MST). We first divide pedestrians into several groups using the agglomerative hierarchical clustering, taking position and velocity of pedestrians as features, and then we track each group, represented
by an MST…The problem of multiple pedestrian tracking in crowded scenes in videos recorded by a static uncalibrated camera is presented in this project. We propose an online multiple pedestrian
tracking algorithm that utilizes group behaviour of pedestrians using minimum spanning trees (MST). We first divide pedestrians into several groups using the agglomerative hierarchical clustering, taking position and velocity of pedestrians as features, and then we track each group, represented
by an MST, with the pictorial structures method. We also propose: (1) a method to detect and handle inter-pedestrian occlusions using a custom trained head detector for crowded scenes, and (2) an efficient method to detect newly entered pedestrians in the frame with help of a background subtraction method. Finally, we present experiments on two challenging and publicly available datasets and show improvements on multiple object tracking accuracy (MOTA) over other methodsOther authors -
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Revisiting Pose Estimation with Foreshortening Compensation and Color Information
VisiGrapp 2014 (9th International Joint Conference on Computer Vision, Imaging, and Computer Graphics Theory and Applications, Lisbon, Portugal 2014
This paper addresses the problem of upper body pose estimation. The task is to detect and estimate 2D human configuration in static images for six parts: head, torso, and left-right upper and lower arms. The common approach to solve this has been the Pictorial Structure method (Felzenszwalb and Huttenlocher, 2005). We present this as a graphical model inference problem and use the loopy belief propagation algorithm for inference. When a human appears in fronto-parallel plane, fixed size part…
This paper addresses the problem of upper body pose estimation. The task is to detect and estimate 2D human configuration in static images for six parts: head, torso, and left-right upper and lower arms. The common approach to solve this has been the Pictorial Structure method (Felzenszwalb and Huttenlocher, 2005). We present this as a graphical model inference problem and use the loopy belief propagation algorithm for inference. When a human appears in fronto-parallel plane, fixed size part detectors are sufficient and give reliable detection. But when parts like lower and upper arms move out of the plane, we observe foreshortening and the part detectors become erroneous. We propose an approach that compensates foreshortening in the upper and lower arms, and effectively prunes the search state space of each part. Additionally, we introduce two extra pairwise constraints to exploit the color similarity information between parts during inference to get better localization of the upper and lower arms. Finally, we present experiments and results on two challenging datasets (Buffy and ETHZ Pascal), showing improvements on the lower arms accuracy and comparable results for other parts.
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Courses
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Convex Optimization
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Digital Image Processing
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Digital Video Processing
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Graph Theory and Algorithms
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Hadoop and Map Reduce for Data Processing
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Machine Learning
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Natural Language Processing
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Pattern Recognition
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Probabilistic Graphical Models
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Projects
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pikChat
A chatbot where the user can chat with the bot, a bot with a display picture. The chatbot chats with you automatically responding relevant to your messages, using natural langauage processing and generation. Also, the facial expression of the display picture changes depending on the course the conversation takes. The user can create his own bot, just by uploading his phto. The NLP algorithms detect the change in emotion, and it is reflected in the image using morphing. A natural language…
A chatbot where the user can chat with the bot, a bot with a display picture. The chatbot chats with you automatically responding relevant to your messages, using natural langauage processing and generation. Also, the facial expression of the display picture changes depending on the course the conversation takes. The user can create his own bot, just by uploading his phto. The NLP algorithms detect the change in emotion, and it is reflected in the image using morphing. A natural language generation system generated proper responses for the conversation.
Other creatorsSee project -
Multiple Pedestrian Tracking in Severe Crowded Environment
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The problem of multiple pedestrian tracking in crowded scenes in videos recorded by a static uncalibrated camera is presented in this project. We propose an online multiple pedestrian
tracking algorithm that utilizes group behaviour of pedestrians using minimum spanning trees (MST). We first divide pedestrians into several groups using the agglomerative hierarchical clustering, taking position and velocity of pedestrians as features, and then we track each group, represented
by an MST…The problem of multiple pedestrian tracking in crowded scenes in videos recorded by a static uncalibrated camera is presented in this project. We propose an online multiple pedestrian
tracking algorithm that utilizes group behaviour of pedestrians using minimum spanning trees (MST). We first divide pedestrians into several groups using the agglomerative hierarchical clustering, taking position and velocity of pedestrians as features, and then we track each group, represented
by an MST, with the pictorial structures method. We also propose: (1) a method to detect and handle inter-pedestrian occlusions using a custom trained head detector for crowded scenes, and (2) an efficient method to detect newly entered pedestrians in the frame with help of a background subtraction method. Finally, we present experiments on two challenging and publicly available datasets and show improvements on multiple object tracking accuracy (MOTA) over other methods
Honors & Awards
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Best Project at Summer Workshop on Computer Vision
Computer Science and Engineering Dept., IIT Delhi
Languages
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English
Native or bilingual proficiency
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Hindi
Native or bilingual proficiency
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French
Elementary proficiency
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3 people have recommended Achint
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Congratulations to Mr. Karthik Reddy (B.E., Industrial– 1994) on receiving the Distinguished Alumnus Award for Entrepreneurial Excellence. As…
Congratulations to Mr. Karthik Reddy (B.E., Industrial– 1994) on receiving the Distinguished Alumnus Award for Entrepreneurial Excellence. As…
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Two solo founders. Both tired. Both trying to make something work. I still remember that random Zoom call. One had built half a product but no idea…
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Excited to be part of this as we expand into the US!
Excited to be part of this as we expand into the US!
Liked by Achint Setia
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🎨 Looking for a UI/UX Design Partner (Equity-based) I’m looking for a passionate UI/UX designer to join me as a partner in building two exciting…
🎨 Looking for a UI/UX Design Partner (Equity-based) I’m looking for a passionate UI/UX designer to join me as a partner in building two exciting…
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We are launching on Amazon on the 7th October. Proud to say we are best in terms of Word and Speaker Accuracy for Indian languages when it comes to…
We are launching on Amazon on the 7th October. Proud to say we are best in terms of Word and Speaker Accuracy for Indian languages when it comes to…
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There are "connectors" and there are real deep integrations. To build the ai infrastructure for the enterprise, deep business context is required and…
There are "connectors" and there are real deep integrations. To build the ai infrastructure for the enterprise, deep business context is required and…
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I will be in the bay area for the next 3 weeks. Looking forward to connecting/grabbing coffee with folks. Please drop me a DM if interested.
I will be in the bay area for the next 3 weeks. Looking forward to connecting/grabbing coffee with folks. Please drop me a DM if interested.
Liked by Achint Setia
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