Photogrammetry Workshop Proposal

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Photogrammetry

Architectural Conservation Documentation Workshop


Course Overview Photogrammetry is the science of making measurements from photographs. The input to photogrammetry is photographs, and the output can be a drawing, an ortho-photograph or a 3D model. This course seeks to explore photogrammetric methods that can be employed in the field of heritage conservation for recording, documenting and assessing built heritage. It will focus on using the photogrammetric methods with the technological advancements encouraging more accurate methods of documentation. This course will teach participants to visually record buildings, that can assist to interpret, to analyse the significance and to be able

Scale rectified Ortho Elevation of a mosque in Hyderabad

to assess the condition.


Decorated Pressed paper ceiling, British Residency, Hyderabad

Photography in Architectural Conservation is different from ‘architectural photography’ since the end product will be used for research, conservation, development purposes and even production of scaled drawings. This workshop aims at demonstrating the benefits of documenting cultural heritage via scientifically viable methods of photography. Photographic recording needs to provide architectural and spatial documentation i.e., understanding of scale, context, style, and elements among various other information. The workshop intends to present theoretical and practical understanding of visual documentation methods, aimed as an integral part of the conservation processes. Participant will understand ways to record spaces with varying levels of accuracy.


Workshop Structure The components of the workshop is structured in multiple sessions of lectures, hands-on training, field work exercises, etc., The workshop shall try to cover the following. 1. History of Photography - (a) Earliest paintings, drawings, images, etc., (b) Transition from Painting to Photography (c) Relevance of photography to buildings and environment (d) Examples from 18th & 19th century historical buildings documentation. 2. Photography Basics & Equipments - (a) Understanding the basic techniques and exercises - Aperture, Shutter & ISO (b) Other basics - White Balance, Metering, Histogram, camera modes (c) Cameras, Lenses, tripod and other accessories (d) Understanding depth of field, focus planes, sensors, pixels (e) Film camera, DSLRs & Phone cameras (f) Understanding the available and artificial lighting in conservation documentation 3. Photogrammetry - (a) History and traditional methods of Photogrammetry (b) Introduction to the Photogrammetry hardware and software (c) Basic workflow (d) Scale rectified photography enabling site plan, elevations, street elevations, cross sections and detailing. 4. Post Processing sessions - (a) Introduction to Photo editing software (b) Understanding the resolution for different needs (d) Printing, mounting, publishing & exhibiting

Ortho Image, Streetscape at Saifeepura, Sidhpur


5. Introduction to other documentation techniques - (a) Aerial Photography (b) Multi Spectral Imaging (c) Gigapixel Photogrammetry (d) Macro Imaging for conservation Expected Outcome Upon completion of the course the participants should be able to – (i) develop critical understanding of Photographic Documentation of Historic buildings (ii) understanding of the Architectural Documentation via photography (iii) have awareness regarding of the effectiveness in photographic documentation (iv) gain introduction to various methods of documenting built heritage Workshop Requirements (a) Every participant should have a camera, with manual controls and a tripod (b) A projector and Space for projection. (c) Every participant should have a laptop, with photo editing software. (d) Trial versions of photoshop, photogrammetry (photoscan pro, etc.,) are available online. (e) Availibility of A3/A4 Colour printing is preferable (f) white board Workshop Costs - Instructor fees - Rs. 40,000/- (Rs.10,000 per day for 4 days), excluding travel (from Trichy via Bangalore/Chennai) and accommodation. Maximum of 15 students.


Ahhichhatragarh Fort, Nagaur, Rajasthan

Anchor Faculty: Maniyarasan Rajendran currently leads a Design Research Cell at C.A.R.E School of Architecture, Trichy. He is a research scholar at the Design Department, IIT Hyderabad. ‘Architectural documentation and its impact’ is his research area. He works as a visual documentation consultant for architectural and conservation firms. He has his Bachelors in Architecture from SPA New Delhi; Post Graduation in Photography Design from NID Ahmedabad, in collaboration with UCA, Farnham, UK. He also has completed a short term course on Conservation of Wall Paintings, with Courtauld Institute of Arts, London.


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