Integrated still image, motion video and speed measurement system

• US 9,691,277 B2
• Filed: 02/18/2011
• Issued: 06/27/2017
• Est. Priority Date: 09/24/2007
• Status: Active Grant

• Current Assignee: Kama-Tech (HK) Limited, Laser Technology Incorporated (Laser Technology)
• Original Assignee: Kama-Tech (HK) Limited, Laser Technology Incorporated (Laser Technology)
• Inventors: Chung, Jiyoon
• Primary Examiner(s): Ratcliffe, Luke
• Assistant Examiner(s): Abraham, Samantha K
• Application Number:
  US13/030,357
• Publication Number:
  US 20110187854A1
• Time in Patent Office: 2,321 Days
• Field of Search: 701117-119, 348149, 348148
• CPC Class Codes: G01S 17/10 using transmission of interrupted, pulse-modulated waves determination of distance by phase measurements G01S17/32
• CPC Class Codes: G01S 17/58 Velocity or trajectory determination systems; Sense-of-movement determination systems
• CPC Class Codes: G01S 17/86 Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders
• CPC Class Codes: G08G 1/054 photographing overspeeding vehicles

Abstract

Devices capable of capturing still and motion imagery are integrated with an accurate distance and speed measuring apparatus. By measuring the changing distance of the target over that time, a target'"'"'s speed can be determined. At substantially the same time as the target'"'"'s speed is determined, imagery of the target is captured in both a still and moving format. Using a queuing mechanism for both distance and imagery data along with time stamps associated with each, a target'"'"'s image, both in motion and still, can be integrated with its speed. In situations in which a still image is unavailable, a target'"'"'s speed can be associated with a portion of a continuous stream of motion imagery to a point where a positive identification can be captured with a still image.

Claims

1. An apparatus, comprising:

a pulse laser rangefinder for determining a speed of a moving object having exceeded a settable threshold velocity at a first remote distance wherein a unique identification feature of said moving object is indistinct, said pulse laser rangefinder comprising transmitting and receiving ports; and

an image capture mechanism comprising a lens and a single image sensor cooperatively integrated in a housing with said pulse laser rangefinder, said apparatus in response to said moving object having exceeded said settable threshold velocity at said first remote distance being configured for storing a sequence of images of said moving object from said first remote distance to a second lesser distance wherein a unique identification feature of said moving object is depicted in at least one of said sequence of images at said second distance and associating an instantaneous speed determined by said pulse laser rangefinder at said first remote distance with at least a subset of said sequence of images.

2. The apparatus of claim 1 wherein said image capture mechanism comprises a video camera.

3. The apparatus of claim 1 further comprising:

a display device on said housing providing a visual indication of said moving object and said speed.

4. The apparatus of claim 3 further comprising:

a battery pack for powering said pulse laser rangefinder and said image capture mechanism.

5. The apparatus of claim 4 wherein said housing comprises a common handheld housing encompassing said pulse laser rangefinder and said image capture mechanism, said housing enabling manual aiming of said apparatus at said moving object.

6. The apparatus of claim 4 wherein said image capture mechanism is activated upon said moving object exceeding a settable threshold velocity.

7. The apparatus of claim 4 wherein said image capture mechanism is activated prior to said moving object exceeding a settable threshold velocity.

8. The apparatus of claim 1 wherein said apparatus comprises a vehicular traffic enforcement device.