DISTANCE IMAGE CAPTURING APPARATUS AND DISTANCE IMAGE CAPTURING METHOD

• Main Authors: HITSUOKA YOSHIYUKI, HATAKEYAMA KUNIHIRO, NAKAGOME TOMOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 19.06.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

To extend a measurable range without increasing time required for measurement.SOLUTION: Multiple accumulation cycles are provided in one frame, control is performed such that charge is accumulated in each of character accumulation units at one of pieces of multiple timing larger than the number of charge accumulation units that pixels have in the multiple accumulation cycles, control is performed such that a total frequency as a total of the number of times for accumulating charge in each of charge accumulation units in one frame becomes identical, and control is performed such that a time difference between first accumulation timing as accumulation timing for accumulating charge in a specific charge accumulation unit from among multiple charge accumulation units in a specific accumulation cycle from among multiple accumulation cycles and second accumulation timing as accumulation timing for accumulating charge in the specific charge accumulation unit in another accumulation cycle different from the specific accumulation cycle becomes time different from accumulation time for accumulating charge in each of the charge accumulation unit.SELECTED DRAWING: Figure 1 【課題】測定に要する時間を増大させることなく、測定可能な範囲を伸ばす。【解決手段】１フレームに複数の蓄積サイクルを設け、複数の蓄積サイクルにおいて、画素が具備する電荷蓄積部の数より多い蓄積タイミングの何れかのタイミングにて電荷蓄積部のそれぞれに電荷が蓄積されるように制御し、１フレームにおいて電荷蓄積部のそれぞれに電荷を蓄積させる回数の合計である合計回数が同一となるように制御し、複数の蓄積サイクルのうちの特定蓄積サイクルにおいて複数の電荷蓄積部のうちの特定電荷蓄積部に電荷を蓄積させる蓄積タイミングである第１蓄積タイミングと、前記特定蓄積サイクルとは異なる他蓄積サイクルにおいて前記特定電荷蓄積部に電荷を蓄積させる蓄積タイミングである第２蓄積タイミングとの時間差分が、前記電荷蓄積部のそれぞれに電荷を蓄積させる蓄積時間とは異なる時間となるように制御する。【選択図】図１