|
|
#161 |
|
Banned
Join Date: May 2010
Posts: 6,396
|
|
|
|
|
|
|
#162 | |||||
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Quote:
Quote:
Quote:
Please provide a link to this non linear theory. Quote:
Quote:
http://www.theatreofnoise.com/2010/07/perspective-distortion-sensor-size-and.html QUOTE FROM THE ABOVE LINK: Perspective distortion is influenced by the distance one stands from the subject. If you are near to your subject then extension distortion will cause the parts of the subject that are closer to the lens to appear abnormally large. This tends to exaggerate facial features, particularly the nose, since this is the part of the face closest to the lens. Most models do not want their nose exaggerated! The opposite type of perspective distortion is compression distortion. If you stand farther away from your subject then distances are compressed; closer parts are relatively smaller than distant parts. This has a flattering effect on people, as it minimises their nose, chin and ears, making their eyes look relatively larger. Perspective distortion is only influenced by how far you are from your subject. It has nothing directly to do with the lens or camera. It has nothing to do with the focal length and nothing to do with the size of the sensor or film you are using. However, if you are using a wide-angle lens you will need to be closer to fill the frame with your subject. This will lead to extension distortion, which is why it is also commonly called wide-angle distortion. And likewise you need to stand back when using a telephoto lens, so you will be able to capture more than a nostril. And this leads to compression distortion, AKA telephoto distortion. Note that the term "distortion" is here used in a purely geometric way. It is not a mistake or flaw in the lens that produces this distortion; it is a simple fact of optics. END QUOTE Note from the above quote that the DISTANT objects will appear perceptually SMALLER (compression distortion) and NEAR objects will appear perceptually LARGER (extension distortion) which is exactly the opposite of what my analysis of the NA$A photo reveals. The mountains are too high compared to the height expected from the contour map and this leads me to the conclusion it is faked. Also note the standard theoretical explanation of the above holds good in the illustrations available on Wiki (see below) and these diagrams also assume angle in equals angle out as does my analysis method. ![]() ![]() In the above Wiki diagrams the height of the Red object actually takes up the full height of the film frame and the change in the relative image height of the near (Blue) object is shown for normal and wide angle lens conditions assuming the distance between the two objects is the same in both cases. Anyway...I await the links to your "parabolic ratio" info with interest.
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 28-07-2012 at 06:30 AM. |
|||||
|
|
|
|
|
#163 | |
|
Banned
Join Date: May 2010
Posts: 6,396
|
Quote:
You're looking at a simplified, schematic diagram that has no lenses. I feel perhaps I've confused you with unnecessary information. The simplified description is simplified; the lines cross over within the camera's lens system, then go through 1 or more additional lenses. The angle in = angle out indicated above is a theoretical thing that doesn't actually relate to how the image is bent within the lenses. My statement was drawn from memories of a much more complicated discussion on the internal optics of camera lenses. For our purposes, just remember that regardless of how many degrees field of view a camera lens takes in, the image is still projected onto the same size piece of film. That's the important bit. Don't get hung up on the angles. I'll try to find the specific references, but they're up in the "scary attic" in a box of other textbooks and I will be leaving for the Mojave Desert late Saturday night so I probably won't have time until I get back in late August. Last edited by apollo_gnomon; 28-07-2012 at 06:31 AM. |
|
|
|
|
|
|
#164 | |||||||||
|
Banned
Join Date: Sep 2009
Location: Down in the basement, working for the government
Posts: 3,721
|
Quote:
Let me state this categorically once and for all: I have faked nothing in Photoshop. That clear enough for you? Nothing. The screenshots I posted were pasted into photoshop, cropped and posted. That's it. Everything else was done in google. Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
I would urge anyone who can be bothered to repeat the exercise I tried for themselves. It is not difficult. You will demonstrate quite easily that I have faked nothing. You could have ended this discussion a long time ago by simply using your software to present a rendered view from the POV of the camera. The fact that you haven't speaks volumes. |
|||||||||
|
|
|
|
|
#165 | |
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Quote:
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
|
|
|
|
|
|
|
#166 | |
|
Banned
Join Date: May 2010
Posts: 6,396
|
Quote:
While I'm gone perhaps you could do a bit of technical reading on cameras and lenses from actual hard copy books, rather than just relying on the Googleversity. Then maybe we can meet in the middle. |
|
|
|
|
|
|
#167 | |
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Quote:
![]() I'm currently digitising the Apollo 17 site using NA$A's Lunar Topophoto Maps Ref 42C3S3(50) and 43D1S1(50).These have level contours at 100 metre and 20 metre interval rather than the 300 metres of the Mare Serenitatis map. It will be in 3D. The problem with Acad is, although you can model accurate 3D objects and topology, it has no capability to model camera views. That's why I had to use traditional orthographic projection methods in my photo analysis. I confined my attention to the peaks. It is possible to define the expected horizon profile in each candidate photo in this way but it's very time consuming and involves drawing loads of sections which I'm not prepared to do. On the other hand 3D Studio fits the bill perfectly. You can define the camera focal length, its field of view and take the shot from any defined x,y,z co-ordinate in any direction within the model. Unfortunately I don't have 3D studio but I know a man who does...... ![]() I can't apply my technique to every Apollo 17 photo but there are several to which it is applicable, with varying degrees of certainty. I can't apply it to other missions because the other sites have no prominent hilly terrain. However Apollo 17 is perfect..........
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 28-07-2012 at 11:53 PM. |
|
|
|
|
|
|
#168 |
|
Banned
Join Date: Sep 2009
Location: Down in the basement, working for the government
Posts: 3,721
|
Apollo 17 site mapped by Hubble in a cool video:
http://hubblesite.org/newscenter/arc...9/video/c/jaxa from which: ![]() also ![]() from http://hubblesite.org/newscenter/arc...05/29/image/f/ And by JAXA: http://wms.selene.darts.isas.jaxa.jp...tc/tc_009.html http://wms.selene.darts.isas.jaxa.jp...tc/tc_010.html From which: ![]() And this from a bunch of serious geek http://djvader.blogspot.co.uk/2006_01_01_archive.html ![]() Even from China's Chang'e-2:
|
|
|
|
|
|
#169 | |
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
NA$A description of the first image in post #168....my bold
Quote:
If such a technique exists (.....and I'm not aware of one) why use a "crap" photo from Hubble????. Why not use one of the "supposed" genuine ones taken from a probe a few kilometres above the moon's surface? This is pure unadulterated BS....whytf does it need to be laid over a terrain model?. In spectroscopic analysis of chemical compounds the sample must be heated to incandescence. The parts of the electromagnetic spectrum can then be separated by various means eg prism defraction onto a photographic plate and the chemical composition deduced from that. wtf is "ground truth"??????????????.....lol The absurdity of NA$A's pseudo scientific BS increases exponentially with time..... Moving Finger.....are you the person responsible for writing this crap "working in a basement for the Government"?.... ![]() Almost forgot.... Re your post #164..........17 inch widescreen laptops dont produce Google Earth screen shots with an OOOPS! aspect ratio.....but manipulated Photoshop montages can.
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 30-07-2012 at 01:58 AM. |
|
|
|
|
|
|
#170 |
|
Banned
Join Date: Oct 2007
Location: Tottenham
Posts: 6,828
|
|
|
|
|
|
|
#171 | ||||||
|
Banned
Join Date: Sep 2009
Location: Down in the basement, working for the government
Posts: 3,721
|
Quote:
Quote:
Quote:
Quote:
Quote:
Quote:
I repeat my earlier statements: The only use I have made of photoshop in the images I have posted is pasting a screenshot and then cropping out the unnecessary stuff. You are calling me a liar with no proof other than your own inability to understand a simple image. I am not a liar. If you have some sort of proof that I have manipulated the images I have posted in any way, post it, otherwise stfu. Your accusations of fraud are as tiresome as they are incorrect. Aside from your tedious insults, your digitising of the Apollo 17 landing site will be interesting. I hope you will post the raw files as well as the views from it, as a lot of people on both sides of the debate will find them useful. |
||||||
|
|
|
|
|
#172 | |||
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Quote:
Quote:
Quote:
In my analysis a small reduction/increase in the LEM height caused by compression/elongation of the leg struts would have negligible effect on my analysis. All it would do is move the camera position in the order of 10 metres nearer or farther away from the LEM. At present I've positioned Peaks 1 and 2 at respectively 13768 and 28776 metres away from the camera position. Therefore an increase/decrease of 10 metres in these distances would alter the angle of inclination of the peaks at the camera position by.....wait for it!....... the grand total of sweet fa... ![]() You could have worked this out for yourself but all you appear to be interested in is trolling and making childish comments for the sake of it. 2….Wrong again....lol You keep insisting the photo I am analysing is shot from a raised camera position that's higher than the LEM footpad. Try checking the contour map. The ground actual slopes down from the LEM to the camera position at about 1:38..... ![]() I am not wrong about perspective distortion. I've already explained this to you. Perspective distortion is perceptual and relates to the real difference between an image produced by a wide angle lens when compared to that produced by a camera with similar angle of view/focal length to the human eye. My analysis is an exercise in geometric optics and ray tracing, not in whether the image "looks right" in perspective terms. How am I wrong about the Biogon Lens? Care to chance your arm explaining this "optics theory flaw" which neither you nor your mate apollo_gnoman have yet provided?...... ![]() If your up to it please use diagrams or maths as your persistent spamming of gifs/images illustrating the "bleedin' obvious" gets rather boring after a time and will result in an "It's Photoshopped" response from me..... ![]()
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 09-08-2012 at 11:10 PM. |
|||
|
|
|
|
|
#173 | ||||||
|
Temporarily suspended
Join Date: Mar 2010
Location: Best not light this one when it escapes.....
Posts: 8,669
|
Don't get ahead of yourself, the use of the word "again" is most misleading
![]() Quote:
When you blow up a picture by a certain factor, please explain what happens when that figure is wrong by 10% or more. You said you worked out the camera position from the field of view, are you now trying to move the goalposts? ![]() Quote:
![]() Quote:
![]() Quote:
Quote:
![]() Quote:
Last edited by truegroup; 09-08-2012 at 11:20 AM. |
||||||
|
|
|
|
|
#174 | ||
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Answers to points raised on another thread regarding my analysis drawings.
Analysis drawings are here on this thread: http://www.davidicke.com/forum/showp...0&postcount=85 Quote:
Quote:
1….Lunar surface curvature. Yes….I’ve checked that and it’s negligible compared to the apparent discrepancies in the mountain heights.…..In round figures Moon Diameter 3474 km…..distance to Peak 2 is 28 km. For Peak 2 take a chord 28 km long joining two points on the Moons circumference. A quick calculation reveals the perpendicular distance from the chord centre to the circumference is 56.42 metres. In the case of Peak 1 (13.7 km away) it’s less than half that. To put it in context Peak 1 should be 2374 metres higher than the LEM. My analysis of the photo shows it to be 3656 metres higher than the LEM. In other words it’s 1282 metres (54%) too high. Factoring in 20 or so metres for the moon’s surface curvature does nothing to explain away the anomaly. On the contrary it makes the anomaly worse...... ![]() 2…Re Moving finger's "hidden peaks" BS..... ![]() The sections constructed from the map contours show both summits are within line of sight of the camera position (see section drawing MoonHoax 04). I carried out my analysis based on the Lunar and Planetary Institutes Mare Serenitasis 1:1000,000 Scale Map. I chose this as an initial "trial" investigation after a quick "back of an envelope calculation" suggested that the expected height ratios measured off the photo compared to those on the contour map were way out. The LM42 map is not the most accurate available BUT digitising a map takes many hours of work in Acad and I wanted to confirm as quickly as possible if the conclusion of my ratio calcs had any foundation. My drawings confirmed this to be so and the height discrepancies are, IMO, far too large to be easily explained away by the map error data. 3…I haven’t carried out a detailed error estimate on the currently posted analysis for the following reason. I am now repeating the exercise using the most accurate maps I can find, the 1:50,000 Lunar Topophoto Map Series series which have 100 metre (Main) and 20 metre (secondary) contour intervals rather than the 300metre intervals of the LM42 map. Digitising the contours takes ages. On and off I’ve spent probably 1000 hours working on it and it will probably take another 300 to complete. It’s really boring work ….a bit like trying to embroider a bloody football pitch…..lol . The interesting analysis bit at the end makes the boring bit worthwhile. I can also use the digitised map to analyse other candidate photos. There are lots of them. The stated error parameters on the Topophoto Maps are: Map accuracy expressed in metres at 90 % probability …. HORIZONTAL 76 VERTICAL +/- 36 When my new analysis drawing is finished I’ll have a look at the likely effect of these error parameters. 4…Regarding shadow analysis and other anomalies pointed out by White, Percy and others I don’t think you can dismiss all of them out of hand. I think some of them are indicators of possible fakery but they certainly can’t be taken as conclusive proof. Forensic ground shadow analysis is possible on relatively smooth surfaces of known topology and, possibly, a statistical shadow analysis could be performed on rough terrain. However, in the case of the Apollo photos it’s a blind alley. It's not smooth and sufficiently detailed topological data of the slopes in the rough ground of the moon's surface and other required information is unavailable and can not be extracted from the photos. On the other hand fairly accurate info is available on the LEM dimensions despite the "convenient" loss of detail drawings by Grumann so anomalies in shadows cast by parts of the LEM on it's self might be more productive but it's still probably not worth the effort. On the other hand I think my analysis method has forensically robust evidential credibility. In fact the more accurate the maps the better it performs. If it were applied to a high accuracy map produced from LRO data I think it could settle the "were the Apollo photos faked on a film set" controversy once and for all. If it establishes fakery then NA$A have BIG credibility problems. I find it VERY suspicious that NA$A, to the best of my knowledge, has so far failed to publish accurate contour maps of the Apollo sites based on LRO data. I stand to be corrected but am I right in thinking that release of accurate LRO maps into the public domain has been restricted to the Lunar Polar regions only?
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 10-08-2012 at 09:29 PM. |
||
|
|
|
|
|
#175 | ||
|
Banned
Join Date: Sep 2009
Location: Down in the basement, working for the government
Posts: 3,721
|
Quote:
Quote:
http://www.nasa.gov/mission_pages/LR...ccomplish.html http://pds.nasa.gov/tools/data-searc...nce_orbiter%2C Other probes have also mapped the landing site (see my posts above), and the views they present are identical to those taken by Apollo 17 both on the ground and from above. |
||
|
|
|
|
|
#176 | |
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Quote:
Your links above to NA$A Bull$hit are worthless and don't lead to any maps. For example in the last link EVERY SOURCE ITEM ON THE PAGE results in a "PAGE NOT FOUND ERROR MESSAGE"!......Another of your links leads to a pay site for Scientific papers. I'm not prepared to pay for $cience papers that detail how these "non available maps " were "allegedly" produced.... Again....Please provide a link to a NA$A contour map of the Apollo 17 site based on LRO data or admit there is no such map available to the public...... If there's one available I'd be deeeelighted to use it in my analysis.......even if it's Photoshopped.... ![]() I'm not interested in your NA$A "views" which can easily be faked with computer graphics software. Let's see this accurate LRO contour MAP!.
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 11-08-2012 at 12:05 PM. |
|
|
|
|
|
|
#177 | |
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
From MF's second NA$A link above.
Quote:
MF's deafening silence noted......
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
|
|
|
|
|
|
|
#178 | |
|
Senior Member
Join Date: Jul 2010
Posts: 1,263
|
Quote:
Last edited by bertl; 12-08-2012 at 01:03 PM. |
|
|
|
|
|
|
#179 | ||
|
Senior Member
Join Date: Jan 2012
Posts: 451
|
Quote:
Quote from your link. Quote:
BTW explain to me how I can extract accurate level information from a scaled ROYGBIV spectrum. If you said this in a Surveying, Civil Engineering, Structural Engineering or Architect's Design Office you'd be laughed out of the room...... http://lroc.sese.asu.edu/news/upload...4.colorbar.png I expected better Bull$hit from you... ![]() Edit On second thoughts I didn't....rotflmao
__________________
Meet the New Boss.....same as the Old Boss Truth is Hate for those that Hate the Truth Laugh and the World laughs with you... Troll and the World laughs at you....promise...
Last edited by kaito; 13-08-2012 at 12:41 PM. |
||
|
|
|
|
|
#180 |
|
Senior Member
Join Date: Jul 2010
Posts: 1,263
|
Have you tried contacting the people responsible for creating the topographic maps for more information?
|
|
|
|
![]() |
| Bookmarks |
| Thread Tools | |
|
|
|
|