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Found 5 essays matching the above criteria.

  1. 1. Alignment of Image Sensor using Piezoelectric Crystals

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Julia Jakobsson; Reem Chahrour Muhieddine; [2023]
    Keywords : piezo; piezoelectric; crystal; piezoelectric crystal; piezoelektrisk; kristall; piezoelektrisk kristall; camera; kamera; focus; fokus; Axis; Axis Communications; alignment; justering; prototyp; prototype; algorithm; algoritm; Technology and Engineering;

    Abstract : The use of piezoelectric crystals as a way to achieve automatic alignment of an image sensor in a camera was investigated in collaboration with Axis Communications AB. Piezoelectric crystals can be created into different configurations, piezoelectric stacks being one of the simpler ones. READ MORE

  3. 2. Using Optical Flow to provide robustness for animage sensor based multiangulation positioning system

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Fredrik Anderson; [2022]
    Keywords : ;

    Abstract : The use of image sensors in positioning systems has increased significantly the last years, spanning from complex SLAM-systems to simpler triangulation based methods. In the latter case, occlusion of anchor points may render the triangulation unsolvable, and any practical implementation must address this problem. READ MORE

  4. 3. PreCro : A Pedestrian Crossing Robot

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : EBBA HEDBERG; LINNEA SUNDIN; [2020]
    Keywords : mechatronics; Pixy2; vision sensor; magnetic encoders; pedestrian crossing; mekatronik; Pixy2; bildsensor; magnetisk givare; övergångsställe;

    Abstract : For people who suffer from visual impairment, getting around in traffic can be a great struggle. The robot PeCro, short for Pedestrian Crossing, was created as an aid for these people to use at pedestrian crossings equipped with traffic lights. READ MORE

  5. 4. Calibration using a general homogeneous depth camera model

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

    Author : Daniel Sjöholm; [2017]
    Keywords : ;

    Abstract : Being able to accurately measure distances in depth images is important for accurately reconstructing objects. But the measurement of depth is a noisy process and depth sensors could use additional correction even after factory calibration. We regard the pair of depth sensor and image sensor to be one single unit, returning complete 3D information. READ MORE

  6. 5. Development of a Handheld Night Vision System

    University essay from Akademin för innovation, design och teknik

    Author : Jonas Karp; Robert Ek; [2009]
    Keywords : gated night vision handheld hand-held laser image sensor ccd cmos image intensifier tube IIT;

    Abstract : The task for this master thesis was to create a specification for a second prototype of Scandilumen´s handheld gated night vision system. Current prototype is analogue and is to be upgraded with a digital interface. READ MORE