Tag Archives: streetscape

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Progress

Streetscape images overlaid onto plan of Vladivostok

I’ve slightly adjusted my methodology for creating streetscapes thanks to a new clipping tool. The aim here is to to make the streetsacpes as clear as possible so as to be immediately useful upon delivery – while still being able to be produced quickly.

Streetscapes in Vladivostok

Vladivostok

Historic Gateway to the City

Four days of travel for four days of work in this intriguing city… Nearly two thousand photographs later I am starting to create documentation of the the streetscapes throughout the historic city center.  I have not yet calculated how many miles of elevations this will total in the end,m but it is by far my biggest undertaking yet in terms of urban scale photogrammetry.

Port of Vladivostok at night

Streetscape Methodology

This is a screenshot from AutoCAD: The lower image is a series of rectified, scalable images of the east side of Augusta Street in Staunton, VA - with an aerial view of the same street grabbed from Google Earth inserted above.

This week I have been developing a methodology for capturing and representing a large volume of structures quickly as I will be doing a project charged with just this task next week in the Russian sea port city Vladivostok. Above is the sample streetscape I created using Augusta Street in Staunton as my test subject.  The photography work took about 15 minutes. I did not use a surveying rod as I typically do, nor did I collect control dimensions with my laser.  In stead, I scaled my model using dimensions extracted from satellite imagery available on Google Earth. I was looking to find a way to obtain accuracy sufficient for 1:200 prints that was also very fast.  To check my work I measured a distance from the model prepared in this way and checked it with the real world conditions. Incredibly, the error was 1/4″!

Scalable at 1/16"=1'-0" when printed at 300 dpi

Above is an individual image extracted from the group that comprises the streetscape. As noted the photo will behave like a measured drawing at the ratio of 1:192 when printed at 300dpi – which means that it is 1:96, or 1/8″=1′-0″ when printed at 150dpi and so on… My opinion is that this is very good considering how fast I made myself complete this work!

The streetscape in my test project represents about 1,000 linear feet. It will help me to extrapolate what can be achieved when tasked with documenting an entire historic district under tight time constraints.

Malcolm X Park aka Meridian Hill Park

Meridian Hill Park

Meridian Hill Park

I just completed this project today, which was somewhat unique in its large footprint. The task was to make drawings of the perimeter wall around the entirety of Meridian Hill Park in Washington, DC.  Below is a satellite image showing the size of the park relative to its neighborhood.

Meridian Hill Park

Meridian Hill Park

I prepared drawings at eighth scale and organized them onto seven sheets.  This model required well over a hundred photographs. Below are a few sheets showing the linework.

Meridian Hill Park Perimeter Wall-1

Meridian Hill Park Perimeter Wall-2

Meridian Hill Park Perimeter Wall-3

Meridian Hill Park Perimeter Wall-4

Meridian Hill Park Perimeter Wall-6

A more co-planar Streetscape

Streetscape in San Miguel de Allende

click on image to see a 100% crop

Here is another streets-cape quickly composed from a half dozen photographs. These facades are more co-planar and thus more easily create a street-scape that is dimensionally faithful to real world conditions. Is it a drawing that looks like a photograph or a photograph that behaves like a drawing?  The tension between these two notions remains beguiling to me.

Streetscape in Guanajuato

far left

left

right

far right

Composite Rectified Streetscape

A Streetscape composed of a variety of planes will invariably be distorted when projected onto a general plane. Nonetheless, for the purposes of creating a quick documentation of the architectural presence of these houses lining a street approaching one of Guanajuato’s many tunnels, an imperfect projection does a lot better job than any of the four wide angle shots above (the source photos for this mosaic).