Backyard photo of Lee Harvey Oswald is authentic, study shows

October 19, 2015
A new Dartmouth study confirms the authenticity of the famous backyard photo of Lee Harvey Oswald holding the same type of rifle used to assassinate President John F. Kennedy. Credit: Warren Commission

A new Dartmouth study confirms the authenticity of the famous backyard photo of Lee Harvey Oswald holding the same type of rifle used to assassinate President John F. Kennedy.

The findings refute continued claims that the photo was faked because Oswald's pose is physically implausible. The study, which uses a new digital image forensics technique and a 3-D model of Oswald developed by the Dartmouth researchers, appears in the Journal of Digital Forensics, Security and Law.

"Our detailed analysis of Oswald's pose, the lighting and shadows and the rifle in his hands refutes the argument of photo tampering," says senior author Hany Farid, a professor of computer science and a pioneering researcher in whose team develops mathematical and computational techniques to detect tampering in photos, videos, audios and documents.

Oswald was killed before his trial, so he never gave a full accounting of the assassination, which fueled theories that he was part of a conspiracy. The theories point to purported inconsistencies in the events of Nov. 22, 1963, and in the evidence collected against Oswald. One such example is a photograph of Oswald in his backyard holstering a pistol and holding a rifle in one hand and Marxist newspapers in the other. The photo was particularly damning because it showed Oswald holding the same type of rifle that was used to assassinate Kennedy.

At the time of his arrest, Oswald claimed the photo was fake. In addition, it has long been argued that the lighting and shadows in the photo are inconsistent; that Oswald's facial features are inconsistent with other photos of him; that the size of the rifle is inconsistent with the known length of that type of rifle; and that Oswald's pose is physically implausible (it appears as if he is standing off balance).

Dartmouth researchers used new digital image forensics and 3-D modeling techniques to confirm the authenticity of the famous backyard photo of Lee Harvey Oswald holding the same type of rifle used to assassinate President John F. Kennedy. Credit: Hany Farid

The Warren Commission and the House Select Committee on Assassinations concluded claims of photo tampering were unwarranted. Also, Farid's studies in 2009 and 2010 refuted the claim that the lighting and shadows are inconsistent, but these studies did not address claims that Oswald's pose is physically implausible. In the new study, Farid and his team conducted a 3-D stability analysis to determine if this claim is warranted.

Dartmouth researchers built and posed a physiologically plausible 3-D model of Lee Harvey Oswald to match his appearance in the famous backyard photo. Their analysis of the 3-D model revealed that although Oswald appears off-balance, his pose is stable. Credit: Hany Farid

Farid teamed with Assistant Professor Emily Whiting, who specializes in architectural geometry, computer-aided design and 3-D fabrication. With the help of graduate student Srivamshi Pittala, they built a physiologically plausible 3-D model of Oswald and posed this model to match his appearance in the backyard photo. By adding the appropriate mass to each part of the 3-D model, they were able to perform a balance analysis on the 3-D model. This analysis revealed that although Oswald appears off-balance, his pose is stable. The analysis also revealed that the lighting and shadows are physically plausible and the length of the rifle is consistent with the length of the used to kill the president.

"Our analysis refutes purported evidence of manipulation in the Oswald photo, but more generally we believe that the type of detailed 3-D modeling performed here can be a powerful forensic tool in reasoning about the physical plausibility of an image," Farid says. "With a simple adjustment to the height and weight, the 3-D human model that we created can be used to forensically analyze the pose, stability and shadows in any image of people."

Explore further: Professor finds that iconic Oswald photo was not faked (w/ Video)

Related Stories

Does practice really make perfect?

July 16, 2014

Does practice really make perfect? It's an age-old question, and a new study from Rice University, Princeton University and Michigan State University finds that while practice won't make you perfect, it will usually make ...

Recommended for you

Samsung to disable Note 7 phones in recall effort

December 9, 2016

Samsung announced Friday it would disable its Galaxy Note 7 smartphones in the US market to force remaining owners to stop using the devices, which were recalled for safety reasons.

Swiss unveil stratospheric solar plane

December 7, 2016

Just months after two Swiss pilots completed a historic round-the-world trip in a Sun-powered plane, another Swiss adventurer on Wednesday unveiled a solar plane aimed at reaching the stratosphere.

Solar panels repay their energy 'debt': study

December 6, 2016

The climate-friendly electricity generated by solar panels in the past 40 years has all but cancelled out the polluting energy used to produce them, a study said Tuesday.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.