5 research outputs found

    Kajian mengenal faktor-faktor yang menggalakkan para remaja untuk menyertai Program Khidmat Negara yang akan dijalankan. Kajian kes: remaja / Norismah Ismail...[et.al]

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    Kajian ini dibuat untuk mengetahui faktor-faktor yang menggalakkan para remaja untuk menyertai Program Khidmat Negara. Sekiranya program seperti Khidmat Negara ini tidak dilakukan ia akan mengakibatkan pengurangan semangat patriotik dan meningkatnya masalah gejala sosial di kalangan mereka. Kajian telah dibuat di kawasan Majlis Perbandaran Seremban. Seramai 170 orang responden telah memberikan maklumbalas mereka. Faktor-faktor menambahkan keyakinan diri, menambahkan pengalaman baru, dan mendapat kenalan baru telah dikenal pasti menjadi tiga factor utama yang mendorong para remaja menyertai Program Khidmat Negara

    Applications of Digital Photogrammetric Systems for Dimensional Measurement and 3D Modelling

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    One of the important current development in digital close range photogrammetric systems is the full automation of the measuring process. The systems range available from low to high accuracy. This study focuses on the applications of low accuracy (using normal digital camera) and high accuracy (using V-STARS system) digital close range photogrammetric systems for dimensional measurement and 3D modeling of several objects. The accuracy were checked with other systems, i.e. AXYZ and CMM. The results obtained show the practicality of both systems, with accuracy ranging from several micron (for high accuracy system) to several mm (for low accuracy system)

    Comparative geometric and radiometric evaluation of mobile phone, compact and DSLR cameras

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    Progress development in digital imaging system has impacted in many fields including close range photogrammetry (CRP). With the improvement in resolution of digital imaging, the image qualities of digital imaging especially non-metric cameras is increasingly optimized. The recent increase in number of pixels of non-metric digital camera and hand phone camera has encouraged the needs to utilize it for CRP applications such as 3D measurement and creations of orthoimages. The objective of this study is to evaluate the performance of non-metric cameras used in CRP. In this study, three non-metric cameras which are Digital Single-Lens Reflex (DSLR), compact and mobile phone are calibrated and tested based on geometric and radiometric characteristics. Geometric performance test is carried out by using self-calibration technique where a calibration test field in the form of three-dimensional (3D) was used. The 3D distance measurement is made to verify the accuracy for these cameras. The interior parameters of the cameras were evaluated and analyzed using descriptive analysis and subsequently followed by performing distance measurement. The radiometric capabilities of all cameras were evaluated by carrying out modulation transfer function (MTF) analysis and image noise analysis. The results clearly demonstrate that the potential and the capability of non-metric cameras to measure up to sub-millimeter precision. From this study, it can be concluded that the performance of geometric is generally increases with the radiometric performance

    Accuracy assessment of calibrating high resolution digital camera

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    Today many photogrammetric works involved the use of digital cameras due to it's in low cost. Digital camera has been used in many photogrammetric applications such as archaeology, architecture, accident investigation, cultural heritage and etc. Theoretically, most digital camera is known as non-metric camera where the interior geometrical of digital camera is not stable, however, the optical quality is not acceptable. The need for camera calibration has been fundamental requirement for obtaining accurate measurement since the inception of photogrammetry. This study deals with the acquisition and processing of different configuration of digital camera (convergent and generic network) which are position at different height versus different digital camera setup. The accuracy assessment was performed for two high resolution digital cameras which are Nikon D90 and Rollei D30metric5 digital cameras. The height of digital camera is setup at approximately 80cm and 100cm. Finally, this study evaluates the accuracy of the camera calibration based on standard deviation of interior camera calibration parameters. This study shows that high resolution Nikon D90 digital camera which is categorized as low cost could be used in photogrammetric application with good accuracy achievable
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