EXHIBIT 99.1
        [IMAGE SENSING SYSTEMS INCORPORATED LETTERHEAD]

NEWS RELEASE


CONTACTS: ART BOURGEOIS, CHIEF FINANCIAL OFFICER
          IMAGE SENSING SYSTEMS, INC. PHONE: 651.603.7700


FOR IMMEDIATE RELEASE

Image Sensing Systems Announces First Quarter Financial Results



SAINT PAUL, MINN.,- APRIL 23, 2003-Image Sensing Systems, Inc. (ISS) (NASDAQ
Small Cap: ISNS) market leading developer and manufacturer of video-based
traffic management systems, announced today financial results for its first
quarter ended March 31, 2003.

Net income for the quarter was $251,000 or $.07 per fully diluted share
compared with a net loss of $226,000 or $.07 per share for the comparable period
in 2002.

Jim Murdakes, Chairman, and CEO said, "We are happy with the first quarter
results considering the impact of the war in Iraq and the concern over the
Severe Acute Respiratory Syndrome (SARS) epidemic in Asia. This, along with
tight cash management and expense control, all contributed in exceeding our
targeted net income."

Revenues for the first quarter of 2003 were $1,556,000, which were down 3% from
$1,610,000 for the same period a year ago. The decrease is attributable to
decreased product sales in Europe and Asia which were offset in part by
increased royalty income resulting from increased sales of Autoscope products by
our North American distribution partner, Econolite Control Products, Inc.

Based in Saint Paul, Minnesota, Image Sensing Systems, Inc. is the world leader
in products applying video imaging technology for implementation in advanced
traffic management systems (ATMS), freeway incident detection and traffic data
collection to help reduce traffic congestion and improve roadway planning. The
Company also offers a suite of products that provide wireless transmission of
video, data, and audio in a variety of markets. The Company's cornerstone
Autoscope(R) products provide traffic managers the means to reduce roadway
congestion, improve roadway planning, and increase cost efficiencies. Econolite
Control Products, Inc., based in Anaheim, California, has been the exclusive
distributor of Autoscope products throughout North America since 1991. Image
Sensing Systems, Inc. and Econolite Control Products, Inc. are particularly
suited to provide technical solutions to the emerging intelligent transportation
systems and security markets worldwide.




     SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF
1995: This report contains "forward-looking statements" made pursuant to the
safe harbor provisions of the Private Securities Litigation Reform Act of 1995.
There are certain factors that could cause results to differ materially from
those anticipated by some of the statements made, as listed in the Company's
2002 Annual Form 10-KSB.

Three Month Periods Ended March 31, 2003 and 2002 (in thousands, except per
share information)


                                                              2003        2002
                                                           ---------   ---------
     Revenue                                               $ 1,556     $ 1,610
     Operating income (loss)                                   323        (229)
     Net income (loss)                                         251        (226)
     Net income (loss) per share
             Basic                                             .08        (.07)
             Diluted                                           .07        (.07)

     Weighted average number of common shares outstanding:
             Basic                                           3,178       3,153
             Diluted                                         3,452       3,153


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