US 2022/0067937 A1 · ELECTRONIC DEVICE, METHOD, AND COMPUTER PROGRAM FOR CALCULATING BLEEDING SITE AND TRAJECTORY OF BLOODSTAIN SCATTERED BY IMPACT

Abstract

A method of calculating a bleeding site and a trajectory of a bloodstain scattered by impact includes: obtaining, by an electronic device calculating the bleeding site and the trajectory of the bloodstain scattered by impact, captured image information; analyzing the obtained captured image information, by the electronic device, and calculating a collision angle and measuring a direction angle of the bloodstain scattered by impact; calculating, by the electronic device, a coordinate value of the bleeding site by using a linear trajectory method; calculating, by the electronic device, a trajectory of a drop of blood based on the calculated coordinate value of the bleeding site by using a parabolic trajectory method considering gravity and air resistance; and displaying and outputting, by the electronic device, a linear trajectory of the drop of blood and a parabolic trajectory considering gravity and air resistance of the drop of blood on a 3D space.

Claims11

Dependent claims

A method of calculating a bleeding site and a trajectory of a bloodstain scattered by impact, the method comprising:

obtaining, by an electronic device calculating the bleeding site and the trajectory of the bloodstain scattered by impact, captured image information including a captured image and a three-dimensional (3D) coordinate value of each of two or more bloodstains scattered by impact;
analyzing the obtained captured image information, by the electronic device, and calculating a collision angle and measuring a direction angle of the bloodstain scattered by impact;
calculating, by the electronic device, a coordinate value of the bleeding site by using a linear trajectory method;
calculating, by the electronic device, a trajectory of a drop of blood based on the calculated coordinate value of the bleeding site by using a parabolic trajectory method considering gravity and air resistance;
and
displaying and outputting, by the electronic device, a linear trajectory of the drop of blood and a parabolic trajectory considering gravity and air resistance of the drop of blood on a 3D space.

3 more elements

An electronic device that calculates a bleeding site and a trajectory of a bloodstain scattered by impact, the electronic device comprising:

an image information acquisition unit configured to obtain captured image information including a captured image and a three-dimensional (3D) coordinate value of each of two or more bloodstains scattered by impact;
an image information analysis unit configured to analyze the obtained captured image information to calculate a collision angle and measure a direction angle of the bloodstain scattered by impact;
a bleeding site calculation unit configured to calculate a coordinate value of the bleeding site by using a linear trajectory method;
a trajectory calculation unit configured to calculate a trajectory of a drop of blood based on the calculated coordinate value of the bleeding site by using a parabolic trajectory method considering gravity and air resistance;
and
an output unit configured to display and output a linear trajectory of the drop of blood and a parabolic trajectory considering gravity and air resistance of the drop of blood on a 3D space.

3 more elements

Dependencies are inferred from the claim text.

Electronic device, method, and computer program for calculating bleeding site and trajectory of bloodstain scattered by impact

Life of this patent

Electronic device, method, and computer program for calculating bleeding site and trajectory of bloodstain scattered by impact

Life of this patent

Abstract

Claims11